bluuebunny/crossref_metadata_2025_split huggingface dataset:
Environmental Geochemistry of Heavy Metals and Plagioclase Background Enrichment Factor in Coastal Sediments at Lumpue - Parepare, South Sulawesi, Indonesia
Authors: Tongggiroh A , Imran A M , Haerany S 
Published: December 2019

Abstract
Lumpue Beach is an urban area in Parepare Bay with a harbour, tourism, and a landfill site. The purpose of this research was to determine the provenance, level and distribution of heavy metals in coastal sediments. Surface sediment samples were analysed for grain size, mineragraphy, petrography and total heavy metal content (Cu, Zn, Pb, Co, Ni, Fe). The minimum-maximum background enrichment factor (EF) range was calculated from the plagioclase mineral content of trachyte porphyry and andesite. Weathering alteration was quite high in trachyte porphyry rocks; andesite mineragraphy produced predominantly sedimentary plagioclase (25-45%), hornblende (10-40%), and rock fragments (40-45%). The grab sampling method produced samples dominated by plagioclase (30-50%), hornblende (15-40%) and alkaline chemical conditions were important in Fe, Ni, Pb, Cd, Cr, and Cu enrichment. Enrichment of heavy metals was supported by the mesokurtic-very leptokurtic dynamic sorting characteristics of Lumpue beach, becoming very leptokurtic - platykurtic to the north (Parepare Bay). The enrichment factor (EF) of Pb > 1 was calculated from the concentration of various non-earth sources. The order of heavy metal concentration based on EF 0.5 ≤ EF ≤ 1.5 was Pb> Zn> Cr> Fe> Cu> Ni, with Cu ≤ 0.5, indicating heterogeneous heavy metal sources correlated with urban area, river and ultrabasic regional lithology, with Trachyte-andesite alteration, especially enrichment in heavy metals Ni, Cr, Cu. Index of geoaccumulation (Igeo) was in the ranges: uncontaminated to heavily contaminated for Fe; uncontaminated to moderately contaminated for Cu, Zn, Ni, Cr and Cd; and uncontaminated for Pb. The intensity of heavy metal contamination followed the direction of sedimentation from various sources. Euclidian Cluster distance showed heavy metal distribution patterns correlated with rivers passing through urban areas and with regional geological lithology.
Participatory mapping and unmanned aerial vehicle (UAV) images for developing village level coastal geoinformation
Authors: Nurdin N , Inaku D F , Rasyid A R , Jalil A R , Alimuddin A , Agus  , Akbar As M , Azizi S Q Al 
Published: December 2019

Abstract
Village maps can provide geospatial data and information that would enable them to become an important instrument in regional development planning. The purpose of this study was to produce geospatial data and information on coastal village resources based on the Indonesian Geographic Information Agency (BIG) reference guidelines. The study was conducted in Langnga Village, Mattiro Sompe District, Pinrang Regency, South Sulawesi Province, Indonesia. This research used raster and vector data. Raster data consisted of high-resolution images obtained from Unmanned Areal Vehicles. The ground truthing used open access applications and interviews with the community. The licensed Arc.GIS 10.5 software was used for the spatial analysis. The dominant land cover/land use categories were aquaculture ponds and rice fields. These areas have historically undergone a dynamic change of land use from rice fields to ponds and back again. Other land uses were settlements inhabited by farmers and fishermen. White sand beaches are one potential resource in this villages, but they are prone to abrasion. The spatial information contained in the village resource and boundary map can be considered as a breakthrough step and could become a pilot for other villages to follow.
Mapping distribution patterns of skipjack tuna during January-May in the Makassar Strait
Authors: Zainuddin M , Amir M I , Bone A , Farhum S A , Hidayat R , Putri A R S , Mallawa A , Safruddin  , Ridwan M 
Published: December 2019

Abstract
Skipjack tuna is an important fishery species, targeted by purse seine and handline fisheries in Makassar Strait. Fish distribution patterns are markedly influenced by several underlying oceanographic factors. This study aimed to assess the relationship between skipjack CPUE and some oceanographic variables, and map out the distribution pattern of this fish in the study area during January-May 2018. To meet these objectives, we combined satellite data of sea surface temperature (SST) and chlorophyll-a concentration (chl-a) with catch data. We used generalized additive models (GAMs) to explore skipjack abundance in relation to the oceanographic conditions and we employed the gravity centre of fishing ground movements to map the fish distribution pattern. Results indicate that SST and chl-a significantly influenced skipjack tuna CPUE. The fish schools were mostly located in the eastern Makassar Strait. In January skipjack schools were initially in Majene offshore waters and moved to Mamuju waters in February. The skipjack schools returned to the border area between Polman and Majene waters in March and then made a continuous migratory journey to the south-western areas of Barru and Pare-pare offshore waters in April. In May, the skipjack tuna returned to concentrate in southern areas of Majene waters. We proposed that the fish schools followed a clock-wise distribution movement pattern where the habitat displacements may have a link with the dynamic ranges of preferred oceanographic conditions (habitat hotspots). It is likely that these areas provide good feeding opportunities for skipjack tuna.
Preliminary note on the morphological characters of penja (amphidromous goby postlarvae) in West Sulawesi and Gorontalo Bay
Authors: Nurjirana  , Haris A , Sahami F M , Keith P , Burhanuddin A I 
Published: December 2019

Abstract

Penja is the local name for the postlarvae of fish belonging to the Gobioidei, whose appearance at certain times is an amphidromous migration process from the sea to rivers. This group of fish is generally referred to as amphidromous gobies. This study aimed to reveal some facts related to the species diversity of penja based on morphological characteristics. The study was conducted from October 2017 to March 2019 in West Sulawesi and Gorontalo Bay, Indonesia. Amphidromous goby samples at the penja (postlarval) stage were obtained from fishermen’s catches and from traditional markets in each location. The samples obtained were measured and described based on morphological differences. The total length of the sampled penja ranged from 18 mm to 58 mm. All penja were identified as belonging to one of two families, the Gobiidae and Eleotridae. Although the species obtained from the waters of West Sulawesi and Gorontalo Bay were similar, there were variations in species composition (relative abundance) based on observed morphology of penja postlarvae from these two locations.
Effect of oceanographic conditions on skipjack tuna catches from FAD versus free-swimming school fishing in the Makassar Strait
Authors: Putri A R S , Zainuddin M , Musbir M , Mustapha M A , Hidayat R 
Published: December 2019

Abstract
Fish Aggregating Devices (FADs) have become the preferred choice in skipjack tuna fisheries rather than looking for free-swimming schools (FSS) which is considered less effective. This study aimed to identify the effect of oceanographic conditions on skipjack tuna catches in the FADs versus free-swimming schools in the Makassar Strait. We collected fishing data from vessels using purse seine fishing gear and satellite-based oceanographic data (Sea Surface Temperature (SST) and chlorophyll-a (chl-a)) from May to July 2017. The satellite and catch data were analysed using a Generalized Additive Model implemented in R and mapped using Spatial Analyst in ArcGIS 10.6. The results showed that SST ranges in the FAD areas were relatively wider (29 – 31°C) than those in free-swimming school areas (29.5 – 30.5°C). The chl-a concentrations in free-swimming school areas were relatively higher (0.25 – 0.80 mg m-3) than those in the FAD areas (0.15 – 0.50 mg m-3). It was also found that mean skipjack tuna catches in the FAD areas (337 fish/setting) were relatively higher than in the free-swimming school areas (145 fish/setting). These findings suggest that the high skipjack tuna catches in Makassar Strait were significantly affected by specific SST ranges and relatively low chl-a.
Quality of giant clam (Tridacna derasa) juveniles as non–target organisms after exposure to clove oil in concentrations suitable for anaesthetising ornamental fish
Authors: Rahim S W , Yaqin K , Fachruddin L , Kudsiah H 
Published: December 2019

Abstract
The use of clove oil as an alternative to cyanide has proven effective for catching several types of ornamental fish on coral reefs. However, it is very important to evaluate the post-exposure condition of non-target organisms in coral reef ecosystems where ornamental fishing occurs, such as juvenile tridacnid clams. The aim of this study was to analyse the condition of juvenile clams (Tridacna derasa juveniles, size class 3-4 cm shell width) after exposure to clove oil at the concentrations found effective for ornamental fish capture. A factorial experimental design was used with 7 clove oil concentrations (control, 20 ppm, 30 ppm, 40 ppm, 50 ppm, 60 ppm, 70 ppm) and 5 post-exposure times (1,5,9,13 and 17 days) with 3 replicates per treatment. The juvenile clams were acclimatized for a week before being exposed to clove oil for 5 minutes, then transferred to a recovery aquarium for 60 seconds before being placed in holding aquaria. The density and mitotic index of the zooxanthellae in the clam mantles were measured for each treatment and time. There was no significant difference (p> 0.05) between control clams and those exposed to clove oil with concentrations from 20 - 70 ppm in either the density or the mitotic index of zooxanthellae present. These results indicate that juveniles of the clam Tridacna derasa did not experience a significant decline in quality (condition) after a short exposure to clove oil, such as might typically occur if clove oil was used in ornamental fishing on coral reefs.
Biological condition and carapace width frequency distribution of blue swimming crabs (Portunus pelagicus) in Gresik and Lamongan, East Java
Authors: Rahman M A , Iranawati F , Sambah A B , Wiadnya D G R 
Published: December 2019

Abstract
Crabs, including the blue swimming crab (Portunus pelagicus), are one of the top five Indonesian fisheries export commodities. The blue swimming crab (BSC) is captured by various fishing gears that are indicated to threaten the sustainability of BSC resources. The aims of this study were to determine the biological condition of BSC by fishing gear, especially carapace width and weight relationship; sex composition and berried or non-berried female (BEF/NBEF); and carapace width distribution. BSC samples were randomly collected from four fishing bases in Gresik and Lamongan, East Java, Indonesia, from July to September 2018. The study found allometric and isometric BSC growth patterns at Gresik and Lamongan, respectively. Sex ratio of male and female crabs was balanced (1:1) with 16% of BEF in Gresik, while in Lamongan, there were more females than males (1:1.6) with 20% of BEF. Overall, catches were dominated by the size class with 11-12 cm carapace width and 70-90 g in weight. The carapace width distribution of indicated that catches from traps were dominated by BSC with of carapace width >10 cm (94%), (according to Ministerial Decree of Marine Affairs and Fisheries number 56/2016, >10 cm of carapace width is the legal size for BSC capture). Meanwhile, BSC catches from gillnets and mini trawls comprised 69% and 52% in the legal size class (>10 cm carapace width), respectively. Promoting traps as a BSC fishing gear can support the implementation of the ministerial decree in the field.
Species diversity of wrasses caught by fishermen in the Spermonde Islands, South Sulawesi, Indonesia
Authors: Yasir I , Tresnati J , Yanti A , Rahmani P Y , Aprianto R , Tuwo A 
Published: December 2019

Abstract
Wrasses are reef fish that play an important role in maintaining the health of coral reef ecosystems. Some species of wrasse, such as the Napoleon wrasse Cheilinus undulates, have high economic value and are threatened with overexploitation. This study aims to analyse the species diversity of wrasses caught by fishermen operating in the Spermonde Islands, South Sulawesi, Indonesia. The study was conducted from January 2018 to May 2019, on a monthly basis. Sampling was carried out by collecting all wrasses landed on one chosen day at Makassar Fisheries Port. The species diversity parameters observed were the species name and the number of individuals of each species. Based on these data, the diversity index, evenness index, domination index, and similarity index were calculated. Wrasse diversity was always in the medium range, indicating that ecologically wrasse habitat is still quite productive and has remained balanced over a considerable period time. It appeared that capture fisheries had not caused serious problems for the wrasse community diversity and structure.
Long-Term Monitoring of Parrotfish Species Composition in the Catch of Fishermen from the Spermonde Islands, South Sulawesi, Indonesia
Authors: Tresnati J , Yasir I , Aprianto R , Yanti A , Rahmani P Y , Tuwo A 
Published: December 2019

Abstract
Parrotfishes, aside from playing an important ecological role in coral reef ecosystems, are an economically important fish group exploited for human consumption. Excessive exploitation of parrotfishes could cause ecological disturbances in the coral reef ecosystem. This study aimed to examine the species composition and population dynamics of parrotfishes caught by fishermen in the Spermonde Islands, South Sulawesi, Indonesia. Parrotfishes were collected from the catches landed in Makassar Fisheries Port. Monthly samples comprised all parrotfishes landed on the sampling day. Sampling was carried out throughout 2014 and from January 2018 to May 2019. The parameters observed were the name and the number of each species. The composition and dynamics of the Parrotfishes species were analysed using the Diversity Index, Evenness Index, Dominancy Index, and Similarity Index. During the study, 6,684 parrotfishes were collected belonging to 34 species, of which 10 species had a mean sampling presence over 90%, i.e. Chlorurus bleekeri, C. capistratoides, C. sordidus, Scarus chameleon, S. flavipectoralis, S. ghobban, S. niger, S. quoyi, S. rivulatus, and S. schlegeli. Long-term monitoring of parrotfish species composition indicate that parrotfish diversity was consistently at the moderate level, indicating moderate productivity, fairly balanced ecosystem conditions, and moderate ecological pressure. Over the study period, parrotfish species were evenly distributed, no one species was really dominant, and the high Similarity Index indicated little change in species composition. These results indicate that the fishing pressure from traditional capture of parrotfishes using nets and spears has not had a serious impact on the condition of parrotfish resources.
Maturity stages of the redbreasted wrasse Cheilinus fasciatus
Authors: Tresnati J , Yasir I , Yanti A , Aprianto R , Rahmani P Y , Tuwo A 
Published: December 2019

AbstractThe redbreasted wrasseCheilinus fasciatusis an ornamental fish exploited for the marine aquarium trade. Even though it has white flesh, the redbreasted wrasse is not popular as a food fish because the flesh is quite thin. The redbreasted wrasse is widely distributed in the Indian and Pacific Oceans. It lives in tropical waters at depths of 4 to 60 m and at temperatures of 23 to 27°C. The objective of this study was to describe the gonad maturity stages of this fish using macroscopic characteristics. Sampling was carried out at Makassar Fishing Port from January 2018 to May 2019. The parameters observed in both male and female specimens were gonad length, width, weight, and gonad colour. Each specimen was also weighed and measured. Five gonad maturity stages were identified and described: Stage I (Immature or transition), Stage II (Early maturation), Stage III (maturation), stage IV (mature) and Stage V (post spawning or spent). These stages were described based on macroscopic structure and morphometric parameters of the gonads. The five stages coincided with changes in the Gonadosomatic Index (GSI), indicating that the five stages were valid. These stages could be used as a practical reference for identifying gonad maturity and describing the reproductive cycle of the redbreasted wrasseC. fasciatus.
Cultivated seaweed carbon sequestration capacity
Authors: Mashoreng S , La Nafie Y A , Isyrini R 
Published: December 2019

Abstract
The rising of the earth’s temperature and climate change have attracted the attention of many scientists and environmental experts. One of the main strategies being proposed to minimize the acceleration of the earth’s temperature is to increase the potential of carbon sequestration from the atmosphere by taking advantage of the ability of plants, including algae, to utilize carbon dioxide in photosynthetic processes. This study aimed to estimate the carbon sequestration capacity and total carbon sequestration of macroalgae (seaweeds) commonly used in mariculture or in brackish-water pond (tambak) aquaculture. The study was conducted in August 2018 in South Sulawesi Province, Indonesia Carbon sequestration was estimated using the oxygen exchange method. Three maricultured seaweeds (Kappaphycus alvarezii green and brown strains and Eucheuma spinosum) and two pond-cultured seaweeds (Gracilaria verrucosa and Caulerpa racemosa) were studied. Thallus sections weighing 2.46-4.91 g were inserted into clear bottles (270 mL) filled with seawater and incubated for 3 hours (09.00-12.00), with 5 replicates for each seaweed. The bottles were attached to the seaweed culture lines (maricultured seaweeds) or placed in the ponds (pond-cultured seaweeds). Bottles filled with ambient water (containing phytoplankton) were used as controls. After 3 hours, titration was used to measure the oxygen exchange in each bottle, and the results converted into carbon sequestration. Seaweed productivity ranged from 0.660-11.997 mgCO2/gbk/hour with the lowest sequestration by K. alvarezii green strain and the highest by E. spinosum. Carbon sequestration was estimated at 57.64 tons CO2/ha/year for maricultured seaweed and 12.38 tons CO2/ha/year for pond-cultured seaweeds. The total annual carbon sequestration from seaweed cultivation in South Sulawesi was estimated at 2,656,625 tons CO2/year from mariculture and 621,377 tons CO2/year from pond culture.
Morphological and genetic analysis of Gracilaria sp. cultured in ponds and coastal waters
Authors: Arbit N I S , Omar S B A , Soekendarsi E , Yasir I , Tresnati J , Mutmainnah  , Tuwo A 
Published: December 2019

Abstract
Seaweeds of the genus Gracilaria are an important aquaculture commodity, commonly cultured in brackish water ponds as well as in coastal waters. In South Sulawesi, Indonesia, the Gracilaria acultured in ponds has been named G. verrucosa, while Gracilaria cultured in coastal waters has been named G. gigas. Morphologically, these two types of Gracilaria do look different. Detailed examination shows that they appear to have similarities. This study aimed to examine whether these two types of Gracilaria are different species or not. The study used morphological characters and COI mitochondrial gene barcoding to assess the Gracilaria types cultured in ponds and coastal waters. Samples were collected from Ujung Baji Village in Takalar Regency, the main seaweed producing region in South Sulawesi Province, Indonesia. The results indicate that both Gracilaria types have similar genetic characteristics as well as shared morphological characters. Based on these analyses, it is considered that both Gracilaria types cultivated may be strains of the same species.
Comparative study on the growth, carotenoid, fibre and mineral content of the seaweed Caulerpa lentillifera cultivated indoors and in the sea
Authors: Syamsuddin R , Azis H Y , Badraeni  , Rustam  
Published: December 2019

Abstract
This research series consisted of 4 (four) research activities, two implemented indoors at the Center for Brackishwater Aquaculture (BPBAP) Takalar in July - August 2017, and two carried out in the coastal waters of Aeng Batu-Batu Village, Galesong District, Takalar Regency, South Sulawesi, Indonesia in May - July 2018. The objectives of the studies were to analyse growth and content of specific nutritional components (carotenoids, fibre, and minerals) of the seaweed Caulerpa lentillifera. The C. lentillifera cultivated indoors and in coastal waters had the same cultivation period and initial seedling weight. There were differences in C. lentillifera growth and nutritional content between the two treatments. Growth and mineral content were higher indoors; likely due to the presence of readily absorbed minerals in the substrate provided (a mixture of sand and coral fragments). Higher carotenoid and fibre content in C. lentillifera cultivated in coastal waters was likely due to carotenoid synthesis by the seaweed to protect chlorophyll from damage, and increased photosynthesis producing more complex carbohydrates (fibre). Although lower than in some previous studies, the mineral and fibre content of C. lentillifera in both treatments was higher than the levels found in most land plants seaweeds.
Enrichment of commercial feed for striped snakehead fry (Channa striata) with golden snail (Pomacea sp.) flour
Authors: Ndobe S , Mangitung S F , Bardi R , Madinawati  , Tobigo D T , Moore A M 
Published: December 2019

AbstractThe striped snakeheadChanna striatais a highly nutritious and economically valuable food fish. Wild populations are declining due to habitat degradation and conversion as well as overexploitation. To promote sustainable use of this resource, a striped snakehead domestication program was initiated in 2013. Earlier research found that golden snail (Pomaceasp.) was suitable as a natural feed for the grow-out of striped snakehead juveniles. This study focused on the formulation of feed for fry, applying a fully randomised experimental method with 5 replicates. Each experimental unit (aquarium with aeration) contained four striped snakehead fry (total length 3.42 ± 0.21 mm). The feed treatments used commercial HI-PRO-VITE 782 feed, with golden snail flour added in 4 doses: A (0%), B (20%), C (25%), D (30%). Total length and weight were measured weekly; water quality and survival were monitored. Overall, the length-weight relation was allometric negative. In terms of both length and weight, growth was highest under treatment C and lowest under treatment A. Growth was significantly different between treatments: A and C for length and weight (analysis of variance with Tukey post-hoc test, α=0.05). Growth patterns and condition factor varied between treatments, with treatment C yielding better balanced growth compared to B (slower increase in length) and D (slower weight gain). Survival rate did not differ significantly between treatments. We conclude that enrichment of commercial feed (HI-PRO-VITE 782) with golden snail flour can improve striped snakehead fry growth, with 25% the most effective dose.
Analysis of coral reef benthic cover changes around Kapoposang Island, Pangkep Regency, South Sulawesi using multi-temporal remote sensing imagery
Authors: Faizal A , Raazy A F , Rasyid A 
Published: December 2019

Abstract
Coral degradation has become an important issue in the Kapoposang Marine Tourism Park, Kapoposang Island, Pangkep Regency, South Sulawesi. This study aimed to monitor changes in live coral cover over the period of 2006-2017. The study integrated two methods: the interpretation of multitemporal satellite images and Rapid Reef Assessment (RRA) surveys. The results revealed changes in each benthic category on Kapoposang Island (i.e. live coral; dead coral; rubble; seagrass/algae and sand). During the period from 2006 to 2017, live coral cover decreased by 13.18% while dead coral and rubble (coral fragments) increase by dead 9.63% and 0.15%, respectively.