bluuebunny/crossref_metadata_2025 huggingface dataset:
CONTRIBUCIÓN AL CONOCIMIENTO DEL GÉNERO VOLUTA LINNE, 1758 (PROSOBRANCHIA) EN LA COSTA DEL CARIBE COLOMBIANO
Authors: Von Cosel Rudo
Published: October 2017

Distribution and ecology of the two species of Voluta Linné, 1758, V. virescens and V. música at the Caribbean coast of Colombia are treated. V. virescens occurs between Wounta Haulover, Nicaragua, and Taganga (Santa Marta), Colombia. It inhabits obligately soft bottom and lives in mud, fine sand and coraline sand from shallow water down to a depth of 90 m. V. música occurs in the eastern and southern part of the Caribbean sea. In Colombia it goes as far westward as Ensenada de Chengue, east of Santa Marta. It lives in sand with coraline lime and has not been observed in mud and mineral sand. Its vertical distribution is from shallow water down to about 40 m. Both species live completely buried in the sand and prey on gastropods and other invertebrates, they also eat carrion. The radula of V. virescens is described and figured. The function of a biological barrier east of Santa Marta is discussed, which forms a distribution limit for some mollusks.
LOS PORCELANIDOS (Crustacea: Anomura: Porcellanidae) DE LA REGION DE ACANDI (GOLFO DE URABA), CON ALGUNOS ENCUENTROS NUEVOS DE LA REGION DE SANTA MARTA (COLOMBIA)
Authors: Werding Bernd
Published: October 2017

Sixteen species of porcelain crabs are described from the Gulf of Urabá and Santa Marta including Neopisosoma curacaoense which presents a new record from Colombia. With the tatter species the total number of porcelain crabs reported from the Caribbean Coast of Colombia reaches 31. The distributions of the species of the upper intertidal is described and discussed in some detail.
DENTICION Y REMPLAZO DENTAL EN ALGUNOS TIBURONES CARCHARHINIDOS DEL PACIFICO COLOMBIANO
Authors: Diaz M. Juan Manuel
Published: October 2017

Dried jaws of four Ca.charhinid shark species (Galeocerdo cuvieri, Carchai hinus albimarginatus, C. galapaguensis and C. porosus) from the eastern tropics Pacific were examined. Tooth replacement rates were determined in both, upper ani lower jaws of each species. In general, replacement rates were greater in lower jaw than in upper ones, and this difference was greater in those species in which th morphologic differentiation between upper and lower teeth is more noticeable In addition, those jaws in which teeth tend to be wider than longer have lowe replacement rates than those in which teeth tend to be longer than wider. This i possibly due to larger tension capacity of wide teeth and higher susceptibility t rupture of long teeth. The great morphological differentiation between upper an lower teeth of some sharks, suggests a higher level of specialization in the feedin habits of those sharks.
NUEVAS LOCALIDADES PARA CANGREJOS MAJIDAE COLECTADOS EN EL PACIFICO COLOMBIANO
Authors: Von Prahl Henry , Guhl Felipe
Published: October 2017

The following crabs: Eucinetops panamensis, Collodes gibbosus, Paradasygyus depressus, Podochela angulata, Podochela veleronis, Stenorynchus debilis, Pitho quinquedentata, Sphenocarcinus agassizi, Notolopas lamellatus, Herbstia túmida, Neodoclea boneti, Maiopsis panamensis, Mithrax (Mithrax) tuberculatus, Mithrax (M) sinensis, Mithrax (M) pygmaeus, Mithrax (Mithraculus) denticulatus, Teleophrys cristulipes, Microphrys platysoma, Stenocionops ovata, Macrocoeloma villosum, Hemus finneganae and Thoe sulcata panamensis, collected at the Colombian Pacific Coast, were described shortly with notes about habitat, colour, general distribution and distribution in Colombia. Drawings of the crabs to allow further identifications are included.
NUEVOS REGISTROS DE PECES PARA LA ISLA DE SAN ANDRES (MAR CARIBE DE COLOMBIA)
Authors: D. Piedad Victoria , Gómez N. Diana Patricia
Published: October 2017

S4 species of fishes are registered for the first time from San Andrés Island and 9 of them are new reports for the western Caribbean. Notes on the abundance of species captured by the fishermen of the "Cooperativa de Pescadores Roos Carlos Baker" are included. Observations of fishes and their habitats identified by skin diving, were made.
LOS HABITATS COSTEROS DE LOS JUVENILES DE PECES EN LA REGION DE PUNTA GLORIA A LA ISLA DE SALAMANCA, CARIBE COLOMBIANO
Authors: González Afanador Edith
Published: October 2017

This paper presents the results of an ecological field study of coastal habitats occupied by juvenile fishes, conducted from June 1979 to May 1980 in a segment of coast between Punta Gloria, SE of the city of Santa Marta and the Isla de Salamanca in the Caribbean coast of Colombia. Four habitat types were studied: very shallow marine shores, coastal lagoons (Punta Gloria and Costa Verde) and a estuary mouth (Ciénaga Grande); their ecological characteristics are described. Abiotic factors studied were surface water salinity and temperature, of which relationship with climatic and hidrological regimes is discussed. Adittionaly, changes in habitat size shape are described. A systematic list of collected fish species is presented, and an estimation of juvenile fish relative abundance per biotope is made and analysed in relation to abiotic factors.
PECES DE LAS ISLAS DEL ROSARIO Y DE SAN BERNARDO (COLOMBIA) II. TRES NUEVOS REGISTROS PARA EL CARIBE SUR Y 16 MAS PARA LA COSTA NORTE CONTINENTAL COLOMBIANA
Authors: Acero P. Arturo , Garzón F. Jaime
Published: October 2017

19 species of fishes collected in the coralline archipelagos of Islas del Rosario and San Bernardo, which are reported for the first time for the Colombian continental Caribbean, are described. Three of those species (Ichtyapus ophioneus, Calamopteryx goslinei and Apogon Ieptocaulus) had not been collected before in the southern Caribbean , being therefore new records for this section of the Sea. Biological and ecological information about the 19 species is given as well.
GRADIENTES DE FIJACION DE NITROGENO ÉN LOS SEDIMENTOS MARINOS ASOCIADOS A ARRECIFES CORALINOS EN EL SUROESTE DE PUERTO RICO
Authors: Nieves Felipe A. , Corredor Jorge E.
Published: October 2017

Marine sediment samples and interstitial water from five stations at the southwest of PuertoRico with different characteristics in composition, were submitted to acetylene reduction technique for nitrogen fixation quantification and ammonium analysis respectively. All stations showed positive results. Glucose addition to the samples increased nitrogen fixation in a proportion of 50 to 200. Organic matter per cent correlated to both: nitrogen fixation and ammonium concentration, indicated a direct proporcionality. In addition nitrogen fixation correlated to the ammonium concentration per station, showed that nitrogen fixation could be limited by the ammonium ion presence in those benthic systems.
DECAPODOS BRACHYURA DE LA REGION NOROCCIDENTAL DEL GOLFO DE URABA (CARIBE COLOMBIANO
Authors: Campos Néstor Hernando , Manjarrés Gustavo
Published: October 2017

Twenty four species of crustaceans (Brachyura) are reported from the northwest region of The Gulf of Urabá (Colombian Caribbean co&st). The distribution and habitat are recorded.
LOS PECES DEL GENERO BATHYGOBIUS (PERCIFORMES: GOBIIDAE) DEL CARIBE COLOMBIANO
Authors: Garzón Ferreira Jaime , Acero P. Arturo
Published: October 2017

Morphological, ecological and zoogeographical information of three gobiid species of the genus Bathygobius (Pisces: Gobiidae) found in the Colombian Caribbean is presented; B Soporator is the most. common and eurytopic species, being found in a great variety of coastal habitats from estuaries to coralline areas; B. curacao and B. mystacium are rare and restricted to coralline areas, the former on soft bottoms of mangroves-sea grass beds ecotones, and the later on shallow, mixed sand and rocky bottoms. Taxonomic differentiation of the three species is difficult because of partial overlap in their diagnostic features.
SEGUIMIENTO DEL CICLO REPRODUCTIVO EN EL ANFIPODO MARINO PARHYALE HAWAIENSIS (DANA) (GAMMARIDEA: HYALIDAE)
Authors: Quintero Herbert , Vanin Carlos , Moreno Patricia
Published: October 2017

The amphipod Parhyale hawaiensis was collected in copulative and ovate states in the rocky shore of Cartagena (Colombian Caribbean). Six phases were defined during the fecundation period. Five characteristic stages in the evoution of the eggs and embryos were established for the marsupial development. It was defined the post-marsupial development as consisting of four life periods, based on variations in total length, head length, antennal article number, shape of gnathopod two, and the.increase in number of medial marginal thorns in the gnathopod two and pereiopods. The fecundation process and the embryologic development lasted sixteen days. Embryos developed simultaneously in number of13 per female. The release of juveniles was asynchronous. In the male, sexual dimorphism was reached after four weeks as evidenced by the size and shape of the gamopod 2 and the number of articles in antennaes 1 and 2.
CRECIMIENTO, SOBREVIVENCIA, TASA DE CONVERSION Y EFICIENCIA ALIMENTARIA DE LA PAGUARA CHAETODIFTERUS FABER (PISCES: EPHIPPIDAE) BAJO DIFERENTES DIETAS
Authors: Robaina Germán , Salaya Juan José
Published: October 2017

Results obtained during 141 consecutive days are issued to evaluate the growth in weight and length, convertion rate and survivalship of Atlantic spadefish specimens (Chaetodipterus faber) feeded with three different diets and their combinations. The experiences were held, with replies, in ten circular tanks of 1.5 m3, sowing specimens between 107 and 115 mm of standard length and 53-64 gr of total weight in a proportion of 13 specimens/m3, feeding them with the 5% of the total biomass per tank, in two daily rations. The best results correspond to the camaronina diet, with an increase of weight of 390% and convertion rate of 3.88, and the combination of camaronina/arenque (sparush sardine), with 393% on weight increase and convertion rate of 4.76. Diet of pollarina, with 164% of weight increase and convertion rate of 7.52 and arenque diet, with 250% of weight increase and convertion rate of 5.90, were which ones that offered lower values. Respect to survivalship, which fluctuated between 85 and 100%, in none of the treatments were found significant differences. A posterior analysis of convertion rate values, price used and survivalship obtained, suggest that the arenque and the combination camaronina/arenque, even if they do not allow to obtain the biggest growth rates and convertion rate, are those who offer the best relation food/price.
CORALES, FORMACIONES ARRECIFALES Y BLANQUEAMIENTO DE 1987 EN BAHIA PORTETE (GUAJIRA, COLOMBIA)
Authors: Solano P Oscar David
Published: October 2017

In order to describe and characterize reef formation in Bahia Pórtete, a survey was conducted between June 1987 and January 1988 in wich a total of 22 stations were visited. Acropora cervicomis, Agaricia agaricites, Montastrea cavernosa, Diploria clivosa and Isophyllia sinuosa, were recorded for the first time amounting to 18 the number of scleractinian species for the bay. The principal component of the coral formations was the hydrocoral Millepora alcicornis due to its abundance and morphological diversity. Reef formations in the area are concentrated on the west and southwest side, not massive enough, however, to be considered real framework reefs. Structuraly two kinds of formations were discriminated: type 1, reef patches, and type 2, seagrass beds with dispersed colonies. Density of colonies was estimated for this latler type, ranging between 6.6 and 35.5 colonies/m2. Additionally, an extensive bleaching phenomenon was observed in October-November 1987, that affected mainly Millepora alcicornis, Pontes astreoides and Pontes pontes. At least six scleractinean species and one hydrocoral showed bleaching. In type 2 formations 25.9 % of colonies was affected. Exact causes for bleaching could not be determined but it is believed that high temperatures in those months together with normal turbid conditions in the area resulted in massive loss of simbionts zooxanthellae. Similar events were registred for most part of the Caribean sea in 1987.
NOTES ON THE DISTRIBUTION, HABITAT AND MORPHOLOGY OF STYLASTERROSEUS (PALLAS 1766) (HYDROZOA: STYLASTERINA) IN THE COLOMBIAN CARIBBEAN.
Authors: Sánchez M. Juan A. , Navas S. Gabriel R.
Published: October 2017

Stylaster roseus en el Caribe colombiano es un común habitante de sus arrecifes coralinos, exceptuando la región de Santa Marta y la Guajira. S. roseus es una especie críptica que tiende a ubicarse en sitios sombreados, generalmente bajo o entre ramas de coral muerto o vivo. Se le observó entre esqueletos de Acropora palmata (2-6 m), sobre las partes laterales e internas de pináculos de Millepora (0.5-3 m), bajo tejados de Montastraea annularis y Agaricia spp. (15-30 m), y sobre embarcaciones hundidas (5-20 m). Adicionalmente se encontró creciendo sobre tejido vivo de Millepora, No se encontraron diferencias en las medidas promedio de colonias de hábitats similares. La coloración más común fue tronco blanco y ramas púrpura, seguida por la púrpura uniforme. Las formas dominantes en su orden fueron: las flabeladas o uniplanares, las ramificadas en dos planos y las arborescentes.
LISTA ANOTADA DE LOS PECES DEL ORDEN ANGUILLIFORMES CONOCIDOS DE LA COSTA COLOMBO-VENEZOLANA, INCLUYENDO DOS NUEVOS REGISTROS PARA EL CARIBE COLOMBIANO
Authors: Acero P. Arturo , Garzón Ferreira Jaime
Published: October 2017

A total of 81 species of eels are known from the north coast of Colombia and Venezuela; 66 of them are continental shelf inhabitants. Anguilla rostrata (Lesueur) and Echiophis punctifer (Kaup) are new records for the Colombian Caribbean.
ANALYSIS OF NUTRITIONAL INDICATORS IN ARTEMIA
Authors: Navarro Gerardo , Tizol Rafael , Díaz Dagmara
Published: October 2017

The Artemia is one of the most important live food in larviculture. Nevertheless the nutritional value is strongly variable and depends on strain and culture conditions. Nutritional characteristics of cyst from saltworks in Cuba were compared with ones from the Nippai Company usually used in larviculture centres. Proportions of total protein, lipids, ashes and fatty acids were determined to decapsulated cyst and fresh hatched nauplii. The highest protein content was found in cyst while total lipids and ashes shown the highest content in nauplii. The Artemia cyst from Cuban saltworks have a higher content of eicosapentaenoic acid (EPA) than the one from Nippai Company and can be classified as marine type.
DINAMICA POBLACIONAL DEL CHIVO MAPALE Cathorops spixii EN LA CIENAGA GRANDE DE SANTA MARTA Y COMPLEJO PAJARALES, CARIBE COLOMBIANO
Authors: Tíjaro Rocío , Rueda Mario , Santos Martínez Adriana
Published: October 2017

During 1994, the catfish "chivo mapalé" (Cathorops spixii) was the second most abundant fishing resource in the "Ciénaga Grande de Santa Marta" and the "Complejo de Pajarales", the main lacustrine-estuarine system of Colombia. Using commercial catch statistics and fishing explorations, the population parameters were determined reproductive cycle, growth, mortality, yield and biomass per recruit. Mature individuals were present all year around with peaks of ripeness and spawning from June to August during periods of little rain and dry, respectively. The mean maturity size was estimated at 23 cm. The growth parameters of the Von Bertalanffy function were: Loo = 32.5 cm and K = 0.38 year1, with a growth performance index of 2.6. Total (Z), natural (M) and fishing (F) mortality rates were estimated as 2.83, 0.96 and 1.87 year1, respectively. The exploitation rate E = 0.66 indicates that the resource is overfished. Therefore it is recomended a fishery regulation by decreasing the mortality rate to F = 1.0 year1 and increasing the cath mean size to 23 cm.
PRESENCIA DE UROTRYGON MICROPHTHALMUM (ELASMOBRANCHII: UROLOPHIDAE) EN AGUAS BAJAS DE MARANHÃO (BRASIL) Y NOTAS SOBRE SU BIOLOGIA
Authors: Almeida Zafira S. , Nunes Jorge S. , Costa Clarissa L.
Published: October 2017

From October 1997 to April, 1998 seventy-nine specimens of the ray Urotrygon microphthalmumwere captured, all of them showing sexual dimorphism. They were processed in order to study their morphometrics, feeding habits, and reproduction. The largest was 300 mm in total length and the smallest one 64.4 mm, weighing 103.4 g and 12.5 g respectively. They fed mainly on crustaceans and ploychaeta; of the stomach contents 94.5 % were shrimp and 5.49% polychaeta. 7.6% of the total had empty stomachs. As far as reproduction, three sexual stages were found:  51% juvenile, 30% adult and 19% pregnant, with an average of three embryos per uterus. Among the male fishes analysed 84.4% were juvenile and 16.6% adults
EVALUACIÓN HIDROACÚSTICA DEL MACHUELO (OPISTHONEMA OGLINUM) Y LA SARDINA (SARDINELLA AURITA), EN LA ZONA NORTE DEL CARIBE COLOMBIANO, DURANTE JULIO-AGOSTO Y DICIEMBRE DE 1997
Authors: Páramo Jorge Enrique , Viaña Jorge Enrique
Published: October 2017

The objective of the present work was to assess the biomass of Atlantic thread herring (Opisthonema oglinum) and the Spanish sardine (Sardinella aurita) in the north area of the Colombian Caribbean sea by means of two acoustic surveys (one in July-August and other in December, 1997). 'llie scientific echosounder used for bodi surveys was the SIMRAD EK500. Emphasis was made on Atlantic thread herring and Spanish sardine because these small pelagic fish have been the most abundant in previous studies in this area. Systematic sampling using parallel transects perpendicular to the coast was carried out. The transect spacing used was 12 nautical miles. The Elementary Sampling Distance Unit (ESDU) was set in lnm. In order to know about the species composition and size frequency distribution fishing trawls were carried out. For this objective, a pelagic fishing trawl was used. For fish Target Strength (TS), the equation TS = 20 log L — 71.9 for physostome fish suggested by Foote was used. The results showed that Atlantic diread herring reached the highest biomass during December survey, 14 183 ton, CV = 0.02, and July-August 12 954 ton, CV = 0.30. The distribution of Adantic diread herring apparently is influenced by the season. 'Fhis species goes to especially where the temperature is higher. In the July-August survey a higher distribution was observed between the area of Santa Marta and Riohacha, while in the December survey die highest distribution corresponded to La Guajira. The Spanish sardine did not show differences in the geographical distribution depending on the season, and apparently it was related to colder and high salinity waters, besides it did not represent any importance due to the low values obtained. This two species in both surveys were always distributed inside the continental shelf.
PRODUCCIÓN DE BIOMASA DE LA MICROALGA MARINA CHROOMONAS SP. , EN FUNCIÓN DEL PH, INTENSIDAD LUMINOSA Y SALINIDAD
Authors: Bermúdez José Luis , Lodeiros César , Morales Ever
Published: October 2017

We report the characterization of a marine microalga of the genus Chroomonas, isolated from a salt lagoon located to the north of Maracaibo, Zulia State, Venezuela. We evaluated the growth and the pigment production in discontinuous culture at different salinites (5, 10, 35, 50, 70 Y 100 ppm),Iight intensites (39,78,117 and 156 µmol quanta.m-2.s-1) and pH (5.0,5.5,6.0,7.0, 8.0 and 9.0). The highest cellular density, 117.99±2.62x106 cel.ml-1, was reached at 35ppm, 156 µmol quanta.m-2.s-1 of light intensity and a pH between 6.0 and 8.0. The cellular content of total chlorophyll and carotenoids increased with the salinity up to 100 ppm, with amounts of 246.55±61.8 and 69.79±18.19 fg.cel-1 respectively. The cellular productivity 4.31x109 cel.l-1d-1 was obteined when the microalga, was grown in semi-continuous culture, at a 2.0 I volume and at a daily renewal rate of 30 % (v/v). The total amount of chlorophyll and carotenoids 1.4 mg.l-1.d-1 and 0.48 mg.l-1.d-1 respectively. This results indicate that this planktonic microalga could be used as daily live food for larvae in aquaculture and for the production of microalgaI biomass and/or pigments.
CAMBIO TEMPORAL EN LA ESTRUCTURA DE LA COMUNIDAD CORALINA DEL ÁREA DE SANTA MARTA - PARQUE NACIONAL NATURAL TAYRONA (CARIBE COLOMBIANO)
Authors: Martínez Silvia , Acosta Alberto
Published: October 2017

Several predictions have been made, about magnitude and direction of temporal changes in the coral community structure, during the last decade. However, few studies have demonstrated it quantitatively. In order to document such changes, the coral community structure was studied in four continental reefs in the Colombian Caribbean, two in the Santa Marta region: Punta Betín (PB) and Morro Grande Island (MO), and two in the Tayrona National Natural Park (PNNT): Granate cove (GR) and Gayraca bay (GA). Coral composition and cover were quantified in 2002 and compared to base line studies from 1989 (PB, MO & GR) and from 1992 (GA). These variables were quantified by 20 m linear transects between 1.5 m and 29 m depth. After a decade, all reefs lost in average 13.8 % absolute coral cover (with respect to the total of the bottom) and 42 % relative coral cover (with respect to the total of coral bottom). Composition changed through time in the four sampled reefs by decreasing the number of genera and increasing the number of species. The change in genera ranged between 8 and 18% and in species between 27 and 68 % due to the presence/absence of species in samples. Nevertheless, neither the richness nor the diversity showed significant differences for any of the reefs. Montastrea cavernosa y M. annularis are still the dominant species in the community with relative coral cover higher than 20 %. Quantified richness and absolute coral cover during 2002 followed the degradation gradient documented in the past, being the values smaller in the Santa Marta’s reefs and higher in the Tayrona´s. However, absolute percentage coral cover lost showed an inverse pattern, being PB (6 %) the least affected, followed by MO (12.6 %), GR (14.6 %) and being GA (22 %) the most affected. Dead coral in PB and MO was replaced by sponges which cover increased significantly over time; meanwhile in GR and GA, dead coral doesn’t seem to have been replaced by other groups. The scleractinian coral cover lost suggests a significant temporal change in the community structure toward a grater degradation state, which might be shifting reef’s function.
SPATIAL AND TEMPORAL CHARACTERIZATION OF SOFT BOTTOM POLYCHAETES IN A SHALLOW TROPICAL BAY (COLOMBIAN CARIBBEAN)
Authors: Guzmán Alvis Angela I. , Lattig Patricia , Ruiz José A.
Published: October 2017

The spatial and temporal variations of the polychaete assemblages were studied within and off a shallow (10-25 m) tropical bay (Bahía de Portete). The polychaete abundances at family level and their trophic mechanisms were used for this purpose. Sediment samples were collected at six stations in this bay during the wet and dry seasons. Multivariate analysis indicated that off- Bay polychaete assemblages were different from the bay ones; this spatial variation was related to sedimentary characteristics, depth and turbid-water conditions. On the other hand, these assemblages did not show significant differences between the dry and wet seasons. The differences between these two assemblages were given specially by the Syllidae, Gonidadidae, Nephtyidae, Dorvilleidae, Ampharetidae, Sabellidae, Glyceridae, Lumbrineridae, Opheliidae and Maldanidae families, being more abundant and frequent off the bay, while Magelonidae, Cirratulidae, Cossuridae and Eulephetidae were more abundant and frequent within the bay. The first ten families were related to a higher sand content, lower organic matter content and lower turbid-water conditions; while the last four were related to higher mud percentages, higher organic matter content and higher turbid-water conditions. Trophic guilds data showed similar assemblages as described above, which differ in their feeding mechanisms; the bay stations were dominated by surface and subsurface deposit feeders showing the importance of detritus; while off-bay stations the carnivores were the dominant organisms, reflecting the high predation. In these assemblages, the trophic and taxonomic structure is more affected by the spatial variation in the physical characteristics of the water column and sediment than by the seasonal variation.
FIRST RECORD OF THE CRAB PODOCHELA CURVIROSTRIS (A. MILNE EDWARDS, 1979) (BRACHYURA: INACHIDAE) FROM THE COLOMBIAN CARIBBEAN
Authors: Cruz Castaño Norella , Gómez Lemos Luis A.
Published: October 2017

Podochela curvirostris, a crab of the family Inachidae, is reported for the first time from the Colombian Caribbean. This species was found associated with sponges and coralinacean algae at 107 m depth, in an area close to the Rosario Islands, near Cartagena.
CARACTERIZACIÓN GENÉTICA DE LA COLONIA REPRODUCTIVA DE LA TORTUGA MARINA GOLFINA –LEPIDOCHELYS OLIVACEA– en el PARQUE NACIONAL NATURAL GORGONA (PACÍFICO COLOMBIANO) A PARTIR DE SECUENCIAS DE ADN MITOCONDRIAL
Authors: Camacho Mosquera Lindamar , Amorocho Diego , Mejía Ladino Luz M. , Palacio Mejía Juan D. , Rondón González Fernando
Published: October 2017

To genetic characterize the nesting colony of L. olivacea in Palmeras beach-Gorgona National Natural Park- and to contribute to the implementation of strategies of conservation for the species, a fragment of the mitocondrial DNA control region (D-loop) was sequenced in 29 individuals for studying the genetic diversity and phylogenetic relationships in comparison with data published in GenBank. The analysis of the sequences revealed the presence of two haplotypes N (96.55%) and E (3.45%), according to the sequences reported for this species. The genetic (h) and nucleotide (π) diversity of the studied colony was h=0.069 and π =0.023%, these results corroborate that the Testudines presents a low genetic diversity. These values of diversity are low when they were compared with continental populations of L. olivacea of the South of Baja California (h=0.16 and π=0.06%), Eastern Pacific (h=0.60 and π =0.26%) and east of India (Sri Lanka with h=0.72 and π =2.07%; Orissa with h=0.27 and π=0.3%) in spite of different number of colonies. The analyses of phylogenetic inference, using the Neighbour- Joining method, confirm the cluster of the haplotypes in two geographical regions (eastern Pacific and east India). We conclude that the presence of the haplotype N corroborate the hypothesis of natal homing (adult females return to lay eggs in the general region where they were born) of L. olivacea in Palmeras beach, this information contribute in the definition of management units required for the implementation of conservation strategies for the species.
CONFIRMATION OF THE OCCURRENCE OF OPHICHTHUS CYLINDROIDEUS (RANZANI) (ANGULLIFORMES: OPHICHTHIDAE) IN THE COLOMBIAN CARIBBEAN
Authors: Barrera García Angélica , Acero P. Arturo , Polo Silva Carlos , Grijalba Bendeck Marcela
Published: October 2017

Two specimens, 565 and 715 mm total length (TL), of the dusky snake eel, Ophichthus cylindroideus, collected southwest of Santa Marta, Colombian Caribbean, were examined. This species was not reported by Acero and Garzón-Ferreira (1995), then it is was not listed in the Colombian marine fishes data bases. However, McCosker et al. (1989) did examine one specimen (USNM 94755, 622 mm TL) from Puerto Colombia. External morphological and morphometric data are compared, as well as some osteology features.
PRESENCE OF CALCAREOUS BIOGENIC TUBES ON CORAL MADRACIS MYRIASTER STRUCTURE (SCLERACTINIA:POCILLOPORIDAE) FROM DEEP-WATER IN COLOMBIAN CARIBBEAN
Authors: López Tomás , Santodomingo Nadiezdha , Reyes Javier
Published: October 2017

A large number of branches from the scleractinian coral Madracis myriaster, collected in deep waters of the Colombian Caribbean, showed both inside and around the skeleton calcareous structures constructed by tubiculous organisms. Here, based on the growth strategy of the coral and the physical conditions of deep-water areas, we describe the functional effect of the tube structures on deep coral frameworks formation and growth.
LA COMUNIDAD DE COPÉPODOS EN LAS ISLAS DE PROVIDENCIA Y SANTA CATALINA (CARIBE COLOMBIANO) DURANTE EL PERÍODO LLUVIOSO (OCTUBRE) 2005
Authors: Martínez Barragán María Del Pilar , Franco Herrera Andrés , Medina Calderón Jairo , Santos Martínez Adriana
Published: October 2017

In order to contribute to the zooplanktonic community knowledge, particularly the Copepoda subclass at Providence and Santa Catalina Islands (Colombian Caribbean), 47 zooplankton samples got in October 2005 (rainy season) were analyzed. 42 species from Calanoida, Poecilostomatoida, Cyclopoida, Harpacticoida and Siphonostomatoida orders were found. Clausocalanus arcuicornis, C. furcatus, Calocalanus pavo, C. contractus, Pontella securifer, Lucicutia !avicornis, Subeucalanus mucronatus, Rhincalanus cornutus, Paracalanus sewelli, Centropages bradyi, Acartia tonsa, Lubbockia squillimana, Saphirella tropica, Euterpina sp. and Caligus sp., were new records for the islands. The Caribbean Equatorial Current circulation, Wilma and Beta Hurricanes passing through the Colombian Caribbean and continental runoff on the west side of the island, were the principal factors affecting copepod abundances and spatial distribution.
STRIOCADULUS MAGDALENENSIS, A NEW DEEP-SEA SCAPHOPOD (MOLLUSCA: SCAPHOPODA: GADILIDAE) FROM THE COLOMBIAN CARIBBEAN
Authors: Gracia C. Adriana , Ardila Néstor E.
Published: October 2017

We describe a new bathyal species of scaphopod belonging to the genus Striocadulus Emerson based on conchological and radular characters. The specimens were collected at a depth of 404-412 m off Bocas de Ceniza (Colombian Caribbean). Striocadulus magdalenensis new species can be distinguished from its other congeners by differences in its apical section, and both number and extent of longitudinal striae. This is the rst record of this genus in the Atlantic Ocean.
LA VARIACIÓN ANUAL DE LOS ÁNGULOS SOLARES EN LA LATITUD DE SANTA MARTA Y SU IMPORTANCIA LOCAL
Authors: Blanco R. Jacobo , Pérez Eliseo
Published: October 2017

Annual changes on the sun’s apparent bearing (azimuth) and on its relative height on the sky, expressed as Altitude and Declination for Santa Marta’s Latitude, are analyzed. Observed azimuth data did not differ signicantly from those calculated. Local daylight duration in minutes was also computed. The parameters for a predictive model as a function of the day’s number and their C.I. at 95 % are estimated. Because of its mountainous topography, the Santa Marta region shows areas where sunlight availability changes throughout the year due to their northern or southern location of promontories and to the respective solar angles. Implications for local living communities are discussed.
EQUINODERMOS ASOCIADOS A FORMACIONES ARRECIFALES EN ZIHUATANEJO Y ACAPULCO, GUERRERO, MÉXICO
Authors: Zamorano Pablo , Leyte Morales Gerardo E.
Published: October 2017

Knowledge of echinoderms from Zihuatanejo and Acapulco, Guerrero is currently limited to taxonomic listings. This work attempts to characterize better the community of these organisms associated to coral reefs in this region using band transects of 50 m length by 1 m width. Two samplings were carried out in 2004, one in the rainy season and other in the dry season. Ten species, three Asteroidea, six Echinoidea and one Holothuroidea, were found. The mean values obtained for diversity in the 13 study sites (1.036 bits ind-1) are considered low when compared with the maximum possible diversity (3.322 bits ind-1), and this is likely due to the dominance of the black sea urchin Diadema mexicanum and the starsh Phataria unifascialis, with densities reported of 1.45±0.60 ind m-2 and 0.12±0.02 ind m-2, respectively. The highest diversity was associated with low tide, which is not different between localities. The spatial arrangement of the echinoderm species composition obtained by the multidimensional scaling analysis denotes the formation of ve conglomerates according to similarity, where the substratum and reef cover are the possible determinant variables. The four predominant species (D. mexicanum, P. unifascialis, Toxopneustes roseus and Hesperocidaris asteriscus), whose densities were compared with those of other sites of the Oriental Tropical Pacic, show, in general, inferior values for Echinoidea and intermediate values for the Asteroidea. For the specic case of D. mexicanum, there are differences in the densities between localities, depths, and time of year, and the mean value obtained of 1.45±0.60 ind m-2 was low compared to densities recorded in other zones. Also, it was observed that in some localities, such as Playa Coral, Caleta de Chon, Punta del Cerro Colorado, and Zacatoso, the sea urchin densities increased considerably during the rainy season, and these high densities maintain a positive correlation with coral cover, which is indicative of a balanced ecosystem. It was also detected that in localities close to Acapulco, which undergo more tourist activity, such as Isla Roqueta, Ensenada de Llantos, and Pichilingue, the diversity of echinoderms is lower (0.6 bits ind-2) and the abundance of D. mexicanum is higher. These results, plus those of other studies at Acapulco Bay, suggest that pertinent actions should be taken to avoid similar phase shifts on reefs of Ixtapa-Zihuatanejo, which are currently considered to be the best developed in the Mexican Tropical Pacic.
TAXONOMÍA DE LARVAS ZOEA DE CRUSTÁCEOS DECÁPODOS DEL ÁREA NORORIENTAL DEL MAR CARIBE COLOMBIANO
Authors: Medellín Mora Johanna , Campos Néstor H. , Franco Herrera Andrés , Jaimes Juan C.
Published: October 2017

The larvae composition of crustacean decapod families at the northeastern region of the Colombian Caribbean was studied based on plankton oblique tows with a bongo net system during July-August, November-December 1997 and March-April 1998. Zoeas were separated and identied to the taxonomic family level from the samples collected. 30 families were described, based on external characteristics as body shape, eyes, antennae, antenule, shell, abdomen, telson, number of thorax appendages and abdomen segments, as well as presence, absence and spines counting. Taxonomic keys were developed to facilitate the identication of the larval stages of Decapoda from the study area.
BACTERIOPLANCTON EN BAHÍA GAIRA, MAR CARIBE (COLOMBIA): COMPARACIÓN DE LA VARIABILIDAD EN ABUNDANCIA Y BIOMASA BACTERIANA DURANTE DIFERENTES PERÍODOS
Authors: Barragán G Rafael G. , Canosa Amparo , Niño Juan P.
Published: October 2017

Marine bacterioplankton abundance, biomass, biovolume and shape were quantied in three stations within Gaira Bay at the Colombian Caribbean coast over three periods dened for this study as: “rainy” (July, August, 2003), “transition” (April, October 2004) and “dry” (February, March, 2004). Bacterioplankton samples were collected from 0.5 and 42 m depths, ltered onto 0.22 μm polycarbonate lters and quantied using epi!uorescence microscopy with Acridine Orange staining and image analysis. Average bacterial abundance ranged between 1.3 x 105-2.9 x 106 cells mL-1 during the rainy period, 8.8 x 104-2.2 x 106 cells mL-1 during the transition period and 6.7 x 104-3.9 x 105 cell mL-1 at the dry period, with a mean abundance of 4.4 x 105 cells mL-1. The differences in abundance were statistically signicant between sampling periods, stations and depths, the differences in biovolume were statistically signicant between sampling periods and stations, nally, the differences in biomass were statistically signicant between stations and water depths (ANOVA, p<0.05). Most of the cells had a coccoid shape and a small biovolume (0.01-0.08 μm3 cell-1). Over the sampling period, the mean bacterial biomass ranged between 0.88 and 32.1 μg C L-1, with the maximum observed during the rainy period. The results suggest that bacterial biomass increases during the rainy period, probably as a consequence of increased water discharge originating from the Gaira River and the Ciénaga Grande de Santa Marta lagoon. We hypothesize that the temporal dynamics of bacterial communities in Gaira Bay are being driven by the availability of organic nutrients (DOC).
OCCURRENCE OF REMORINA ALBESCENS (PERCIFORMES: ECHENEIDAE) IN THE COLOMBIAN CARIBBEAN, INCLUDING A TAXONOMIC KEY FOR SPECIES OF THE FAMILY IN COLOMBIA
Authors: Farfán López Edwin , Acero P. Arturo , Grijalba Bendeck Marcela
Published: October 2017

The presence of Remorina albescens for the Colombian Caribbean is conrmed, based on a specimen of 165.91 mm of standard length collected in Nenguanje bay at the Tayrona National Natural Park. A taxonomic key for the remoras known from Colombian seas is also included.
EFECTO DE LA SEDIMENTACIÓN EN EL RECLUTAMIENTO DE LAS MACROALGAS DICTYOTA SPP. Y LOBOPHORA VARIEGATA: UN ESTUDIO EXPERIMENTAL EN EL PARQUE NACIONAL NATURAL TAYRONA, CARIBE COLOMBIANO
Authors: Flórez Leiva Lennin , Rangel Campo Alejandro , Díaz Ruiz Martha , Venera Pontón Dagoberto E. , Díaz Pulido Guillermo
Published: October 2017

Sedimentation is frequently associated with coral reef degradation. However, there are few experimental studies evaluating the impacts of this process on the dynamics of algal recruitment on coral reefs. In a field experiment, we manipulated the levels of sedimentation and examined the impacts on the recruitment and growth of the brown macroalgae Dictyota spp. and Lobophora variegata, in two localities (Chengue and Granate) on the Tayrona National Natural Park, Colombian Caribbean. We found considerable variability in the responses of algae to sedimentation. This variability depended on the levels of sediments used, the type of algae employed and the population parameter considered (recruitment or growth). Sediment addition generally had a negative effect on the recruitment and early growth of the alga Dictyota spp. In contrast, sediment addition did not affect the recruitment of L. variegata, while sediment removal had a negative effect on recruitment. The locality with higher sedimentation rates (Granate) generally had lower recruitment and growth of both algae than that of the other locality with lower sedimentation levels (Chengue). Our study indicates that there is substantial variability and complexity in the responses of reef algae to the effects of sedimentation. The results also suggest that the process of reef degradation can modify early population dynamics of benthic algae, with important implications for understanding the ecology of reef degradation.
DISTRIBUCIÓN ESPACIAL, ABUNDANCIA Y RELACIÓN CON CARACTERÍSTICAS DEL HÁBITAT DEL CARACOL PALA EUSTROMBUS GIGAS (LINNAEUS) (MOLLUSCA: STROMBIDAE) EN EL ARCHIPIÉLAGO NUESTRA SEÑORA DEL ROSARIO, CARIBE COLOMBIANO
Authors: Gómez Campo Kelly , Rueda Mario , García Valencia Carolina
Published: October 2017

Population density and spatial distribution of the Caribbean conch, Eustrombus gigas (Linnaeus), as well as its association to different habitats were evaluated at 184 stations sampled systematically in two seasons (wet and dry) in Nuestra Señora del Rosario archipelago. Each individual was counted and measured in a circular area of 1256.6 m2 (sampling unit) by SCUBA diving and in situ observations on the types of habitats were made. The average density (± SD) of the species was low compared with other regions in the Caribbean, 4.0 ind/ha ± 10.8 and 3.7 ind/ha ± 9.3, for the wet and dry seasons, respectively. Adults represented 89 and 64 % of the population surveyed for each season, and were specifically located at Bajo Tortugas and Isla Tesoro. Although reproductive activity was observed during the wet season, population density was below critical levels to guarantee the population´s reproductive success. The spatial distribution analysis showed that the abundance of adults was spatially structured in both seasons, with important aggregations at Bajo Tortugas and Isla Tesoro. Juveniles did not show spatial structure for neither season due to the low observed abundance. Multiple regression models explained 48 and 14 % of the total variance in the abundance of adults during the wet and dry seasons, respectively; with depth, mean grain size, and percentage of mixed coral as predictor variables. It is recommended to establish Bajo Tortugas and Isla Tesoro as special protected areas in order to maintain the adult spawning stock, while the same conservation measure should be implemented at Isla Arena in order to protect juveniles on seagrass beds.
DINÁMICA OCÉANO-ATMÓSFERA Y SU INFLUENCIA EN LA BIOMASA FITOPLANCTÓNICA, EN LA ZONA COSTERA DEL DEPARTAMENTO DEL MAGDALENA, CARIBE COLOMBIANO
Authors: García Hoyos Lorena Marcela , Franco Herrera Andrés , Ramírez Barón Jeimmy Samanta , López Cerón Diego Alejandro
Published: October 2017

From February to June 2008 at inshore sites of the Magdalena region, specifically in Gaira and Granate inlets and Taganga Bay, six field trips were done comparing the main dry and short rainy seasons. The main aim was to determine the coupled ocean-atmosphere influence on the upwelling intensity, considering the physical and chemical variability within the water column between 0 and 60 m and the response of the phytoplankton community measured as chlorophyll a. Atmospheric, oceanographic, and biological conditions were evaluated following the Eulerian method. According to the oceanic and atmospheric conditions during the research period, Ekman transport and continental upwelling processes occurred through February and April, in response to adequate conditions: average wind speed (>4.0 m/s) and wind direction (parallel and perpendicular to the coast). Physical and chemical anomalies were detected in the water mass, such as low temperature (25.34±0.82°C), high salinity (35.5±0.30) and oxygen subsaturation (70.6±7.8 %). The inorganic nutrient supply was higher during upwelling processes,consequently, the system was defined as mesotrophic, causing greater phytoplankton chlorophyll a biomass with level up to 1.60 μg/L. "La Niña" 2007/2008 event, which covered the period of this of this research, did not incite any important disturbance over the typical upwelling conditions.
PRESENCIA DEL PEZ LEÓN, PTEROIS VOLITANS (ACTINOPTERYGII: SCORPAENIDAE), EN EL DEPARTAMENTO DE LA GUAJIRA, MAR CARIBE DE COLOMBIA
Authors: Martínez Viloria Héctor , Rosado Gómez Ánderson , Acero P. Arturo
Published: October 2017

The red lionfih was captured in the northeast Colombian Caribbean, in “El Yoyo” fihing ground, located in La Guajira peninsula (Riohacha). The Guajira continental shelf, located between Santa Marta and Venezuela, should be a stepping area for lionfih pelagic larvae.
CRITERIOS DE ZONIFICACIÓN AMBIENTAL USANDO TÉCNICAS PARTICIPATIVAS Y DE INFORMACIÓN: ESTUDIO DE CASO ZONA COSTERA DEL DEPARTAMENTO DEL ATLÁNTICO
Authors: López Rodríguez Ángela , Lozano Rivera Pilar , Sierra Correa Paula Cristina
Published: October 2017

In the Integrated Coastal Zone Management frame, environmental zoning is considered a tool for land planning and management. It is based on definition and integration of biophysical, socioeconomic and governability criteria. With the aim for using this tool as part of the coastal zone environmental planning in the Atlántico province (Colombian Caribbean) the following criteria were defined: representative level, stage of ecosystem intervention, ecosystem function, current state of associated fauna, natural risks, water balance alteration, land use intensity, land use aptitude and land use conflicts. The integral analysis of criteria allowed the definition of management areas such as strategic ecosystems, recovery zones, sustainable use, sustainable production and urban-suburban areas. These areas were the base for further definition of integrated coastal zone management guidelines. The definition and integral analysis of zoning criteria were based on participatory techniques, interdisciplinary technical workshops and local community participatory process. As well, Geographic Information System supported the spatial analysis criteria over ecological landscape units. The environmental zoning is a tool for environmental planning which requires definition and integration of biophysical, socioeconomic and governability criteria for facing the conflicts and problems found in the area in order to lead management actions. It is hoped that future work will study the incorporation of models to support the selection and qualification criteria in a quantitative way; also it is expected that participatory processes will involve different sectors such as the economic, since they have less participation in these planning processes.
CRECIMIENTO Y SUPERVIVENCIA DE LARVAS DE ARGOPECTEN NUCLEUS ALIMENTADAS CON DIFERENTES DIETAS MICROALGALES
Authors: Carreño Hernández Yenia Katerine , Acosta Ortiz Ernesto , Gómez León Javier
Published: October 2017

The influence of the diet on larval growth of the scallops Argopecten nucleus was studied, testing six microalgae diets composed by single-algae and mixed diets of the species Isochrysis galbana, Chaetoceros calcitrans y Tetraselmis suecica, handling a concentration per mL equivalent to 40000 cells of I. galbana and the response through the variables surviving, growth, appearance of the eye spot and state of condition (full, half-full and empty larvae) was measured. The diets containing I. galbana showed greater results over all the measured variables, with regard to those where it was not present. In particular, the mixed diet I. galbana + C. calcitrans presented superiority over all variables, although in the most cases was statistically similar to I. galbana + C. calcitrans + T. suecica, I. galbana + T. suecica and I. galbana alone. For the opposite, the diets with the lowest results were C. calcitrans and C. calcitrans + T. suecica. The results obtained are principally attributed to the nutritional composition mainly of high unsaturated fatty acids (HUFA) of each microalgae and each mixture supply, which is discussed in detail.
FORAMINÍFEROS BENTÓNICOS RECIENTES EN LAS AGUAS PROFUNDAS DE LA CUENCA DE PANAMÁ: ECOLOGÍA Y SU POSIBLE RELACIÓN CON LAS CORRIENTES DE FONDO
Authors: Patarroyo Camargo Germán David , Martínez Rodríguez José Ignacio
Published: October 2017

The relationship between recent benthic foraminifera and bottom currents in the Panama basin (Colombian Pacific) is examined, and the main ecological variables which control the distribution of benthic foraminifera are discussed. The benthic foraminiferal study of 24 core top samples and the integration with previous reports, support the view that in upwelling areas or under high terrigenous influx, the assemblages are dominated by infaunal forms such as Uvigerina, Bolivina, Globobulimina, and Chilostomella, beside common forms such as Uvigerina peregrina Cushman and Epistominella spp., which are indicative of high productivity. In contrast, epifaunal forms such as Cibicidoides, Laticarinina, and Hoeglundina are more common on the flanks of the Cocos and Carnegie Ridges indicating a lower surface productivity and a larger content of dissolved oxygen on the sea floor. Infaunal foraminifera are dominated by Siphouvigerina proboscidea (Schwager). In addition, several proxy taxa of the intensity of deep sea currents were detected in the analyzed assemblages. From these taxa, Cibicides wuellerstorfi (Schwager) has the best proxy potential for the reconstruction of intense bottom currents in sediments from the Cocos and Carnegie Ridges for the Holocene.
COMPORTAMIENTO DE LOS RENDIMIENTOS ECONÓMICOS DE LA PESQUERÍA ARTESANAL DE LA CIÉNAGA GRANDE DE SANTA MARTA Y EL COMPLEJO DE PAJARALES, CARIBE COLOMBIANO
Authors: Zamora Bornachera Anny P. , Meza García Ana G.
Published: October 2017

In the period between “before” (1994-1996) and “after” (1999-2004) the hydraulic works the behavior of the economic yield of the artisanal fishery in Ciénaga Grande de Santa Marta and Complejo de Pajarales through the commonly used in the study area Fishing Economic Units (FEU), such as atarraya, trasmallo and boliche, was evaluated. Significant differences of the economic yield by type of FEU were observed spatially and temporarily, being atarraya and boliche the FEU that presented differences between stations and years, while trasmallo presented only temporal differences. The above is a product of the biophysical changes that suffered the lagoon system due to the different human interventions. It not only caused income changes, but also a major pressure on the lagoon system induced by the fishermen, willing to improve their socioeconomic wellbeing.