bluuebunny/crossref_metadata_2025 huggingface dataset:
SİBİR ARAŞTIRMALARINA DAİR BİR RUS MECMUASININ TETKİKİ: ‘SİBİRSKİY VESTNİK
Authors: ÖZKAN Murat
Published: October 2019

Sibir, geçmişten günümüze, başta geniş coğrafi konumu ve değişken iklimi olmak üzere, birçok farklı kimlik ve kültürden insanın yaşadığı bir coğrafya olması sebebiyle araştırılmasında zorluklarla karşılaşılan bir bölge olmuştur. Dünya kültür ve medeniyetinin, bilimsel ve teknolojik gelişmelerin kıyısında kalması da olumsuz etkenler arasındadır. Bu nedenle bölge hakkında yapılan çalışmaların sayısı oldukça sınırlıdır. Sibir’de yaşayan çok sayıda Türk topluluklarının yaşayışlarını anlayabilmek, bölgeyi yakından tanıyabilmek için burası hakkında yapılan çalışmaların artırılması gerekmektedir. Yapılan araştırma ve incelemeler esas itibariyle Rus bilim çevrelerinin ürünüdür. Sibir tarihi ve arkeolojisiyle yakından ilgilenen Rus oryantalisti Grigoriy İvanoviç Spasskiy, I. Aleksandr dönemi Rusyası’nda, ‘Sibirskiy Vestnik’ adlı dergiyi çıkarmıştır. Dergi Türkistan, Hindistan, Çin, İran, Kafkasya gibi bölgelerin yanında özellikle Sibir bölgesi ve tarihi hakkında ayrıntılı malzemeyi içinde barındırmaktadır. 1818-1824 yılları arasında yayınlanan bu dergi işlediği konular itibariyle yalnızca tarihçilerin değil arkeoloji, etnografya, coğrafya, filoloji, sosyoloji gibi farklı disiplinlerle ilgilenen araştırmacılar için de önemli bir kaynaktır. Çalışmada 1818-1824 yıllarına ait Sibirskiy Vestnik dergisinin toplamda yayınlanan 28 sayısı incelenmiş; Sibir ve ona komşu ülkeleri ilgilendiren haberler, makale ve raporlar tespit edilmiştir. Çalışmanın hacmini daraltmak amacıyla, taramalardan elde edilen verilerin tamamı bu çalışmaya dâhil edilmemiş; önemli görülen konu başlıkları ayrı ayrı başlıklandırılarak çalışma metni oluşturulmuştur. Sibirskiy Vestnik dergisinin konu yelpazesi oldukça geniştir. Dergide çok farklı bölümler vardır ve bunlar konu tasnifine dikkat edilerek oluşturulmuştur. Konu başlıkları kronolojik olarak sıralanarak her başlık genel içerikleri itibariyle açıklanmış, yazılara ait künye bilgileri her bölümün altında sıralanmıştır.
Desempeño laboral de acuerdo al estado de salud del trabajador y el uso del móvil en organizaciones laborales.
Authors: Amador Licona Norma , Aguirre García Maricruz , Anguiano Peña Nancy , Guízar Mendoza Juan Manuel
Published: October 2019

Introducción: Múltiples factores del trabajador y su entorno influyen en su desempeño laboral. Debido al uso frecuente de teléfonos inteligentes e Internet móvil, las empresas actualmente están adoptando tecnologías móviles y numerosas aplicaciones con el propósito de  aumentar su eficiencia operativa y competitividad por lo que es necesario evaluarlos en  nuestro entorno. El objetivo del estudio fueidentificar la asociación del desempeño percibido ajustado a la salud del trabajador con el uso del móvil.Método: En 114 trabajadores de la industria del calzado y de servicios, se aplicaron el Work Role Functioning Questionnaire y el Cuestionario de Experiencias Relacionadas con el Móvil (CERM). También se registraron sus principales patologías, estado civil, número de hijos, edad, sexo, antigüedad en el trabajo, número de horas laboradas por semana y su opinión respecto al uso del móvil en el trabajo. De acuerdo a la distribución de las variables efectuamos prueba de Pearson o Spearman para evaluar la asociación entre variables con distribución normal o sesgada respectivamente. La variable dependiente fue el desempeño laboral percibido y ajustado al estado de salud del trabajador y como variables independientes se consideraron la edad, la antigüedad en el trabajo y las horas laboradas a la semana. Se realizaron comparaciones por sexo y de acuerdo a ser empleados profesionales o no profesionales. Para la comparación de variables continuas entre los grupos efectuamos prueba t de Student no pareada o U de Mann-Whitney de acuerdo a la distribución de los datos y chi cuadrada para comparación de proporciones. Un valor de p<0.05 se considera significativo.Resultados: Del grupo total de trabajadores, 70(61.4%) reportó que es necesario el uso del móvil en al ámbito laboral principalmente para comunicación con personal del equipo de trabajo, información requerida en el trabajo y como herramienta para localizar formatos, proveedores etc. El factor conflictos del uso del móvil mostró correlación negativa con las demandas de salida (r=-0.21; p= 0.026), las mentales (r=-0.21; p= 0.03), físicas (r=-0.19; p= 0.041) y la puntuación total del desempeño laboral (r=-0.21; p= 0.025). El factor uso comunicacional correlacionó de forma negativa con las demandas sociales (r=-0.22; p= 0.021) y la puntuación total del desempeño laboral (r=-0.20; p= 0.032). La puntuación total de CERM mostró asociación negativa con la puntuación total del desempeño laboral (r=-0.23; p= 0.015) y todos sus factores exceptuando las demandas físicas (r=-0.17; p= 0.068). En las mujeres se identificó menor IMC, número de horas laboradas por semana, número de hijos, años de pareja y demandas sociales.Conclusión: El uso excesivo del móvil se asocia de forma inversa al desempeño laboral percibido en trabajadores del calzado y de servicios.
Medición de la sustentabilidad turística en una pequeña localidad costera a través de indicadores, barómetros y consulta a expertos
Authors: Ibáñez Pérez Reyna María
Published: October 2019

Los indicadores proporcionan pautas para mejorar la calidad de vida. A nivel nacional son escasos los estudios sobre turismo en pequeñas localidades costeras por ello, se tomo como caso de estudio a Cabo Pulmo, Baja California Sur (BCS), un destino importante debido a la presencia de arrecifes y enorme diversidad aprovechada con fines recreacionales pese a ello, existe poca información sobre su impacto en el bienestar local. El objetivo de esta investigación fue medir el grado de sustentabilidad turística de Cabo Pulmo, BCS, una pequeña localidad costera sujeta a protección ambiental.El método utilizado se baso en el perfeccionamiento de dos metodologías, una propuesta por la Unión Internacional para la Conservación de la Naturaleza (UICN) y otra propuesta por la Organización Mundial de Turismo (OMT) y la Secretaría de Turismo (SECTUR) a su vez para la generación de la información de los indicadores se aplicaron técnicas mixtas y posteriormente, se formularon y ponderaron escenarios mediante el Método Delphi.Los resultados para 46 indicadores (23 del componente social y 23 del ambiental) revelaron que el ISL promedio fue de 0.70 y al ajustarlo con base en cuatro criterios de ponderación propuestos por expertos, se obtuvo: ISLae₁=.73, ISLae₂=70, ISLae₃=.73, ISLae₄=.84, según los tres primeros escenarios se corrobora que Cabo Pulmo, BCS se situá en un nivel Bueno de sustentabilidad sin embargo de manera excepcional, en el último escenario se le cualificó en un nivel Alto o excelente.  Del mismo modo, los principales hallazgos apuntan a que Cabo Pulmo, presenta cierto grado de rezago social. Tal situación, no es única de la localidad estudiada; si no que suele observarse en pequeñas localidades o áreas, cercanas a enormes polos de desarrollo turísticos.Al contrastar los resultados con otros estudios se encontró que el sitio analizado presenta el mismo nivel de sustentabilidad que entidades de México como BCS y se localiza por arriba de naciones como Sri Lanka, Bangladesh, Nepal, Pakistán y Bután. Por otra parte, debe considerarse que el valor promedio de los componentes se localizaron en el límite superior (en el caso del componente ambiental) e inferior (en el componente social) del nivel de categorización y una pequeña reducción de los valores, en ambos o algunos de los componentes, puede ocasionar que la localidad se ubique en un grado de sustentabilidad más pobre. Las principales recomendaciones son: 1) Poner especial cuidado en mejorar los indicadores categorizados como críticos por ejemplo: servicios de salud y educación, calidad del agua para uso doméstico, viviendas con drenaje, caminos en buen estado y la relación visitantes Vs habitantes y 2) Seguir generando información para evaluar la variación en el nivel de sustentabilidad local.
Posibilidades del bambú (Guadua angustifolia Kunth) para la alimentación humana en la Sierra Nororiental de Puebla, México
Authors: Aguirre Cadena Juan Francisco , Ramírez Valverde Benito , Cadena Íñiguez Jorge , Caso Barrera Laura , Juárez Sánchez José Pedro , Martínez Carrera Daniel Claudio
Published: October 2019

Introducción: Los brotes de bambú son una alternativa de comida vegetal no convencional ya que contiene 17 tipos de diferentes enzimas y más de 10 elementos minerales; también contiene un alto índice de fibra, vitaminas, aminoácidos, y es bajo en grasas. Sin embargo, contiene ácido cianhídrico (HCN) un compuesto toxico, que debe eliminarse de los brotes antes de su consumo. El objetivo de la investigación fue evaluar la posibilidad de consumo humano de brotes de G. angustifolia, evaluando su contenido de HCN, forma de reducirlo, y valores nutrimentales.Método: Los análisis se realizaron en dos laboratorios; la cuantificación del HCN se realizó por el método propuesto por Hake y Bradbury, el cual consiste en tiras de papel impregnado de picrato que en presencia de HCN produce isopurpurina, la cual puede ser detectada por espectrofotometría. Para conocer la diferencia entre los tratamientos en la reducción de ácido cianhídrico se utilizó un diseño experimental completamente al azar. El análisis de tejido vegetal y bromatológico se realizó con los siguientes procedimientos: Grasa (Soxhlet,), Fibra cruda (Digestión ácida y alcalina), Nitrógeno (Micro Kjeldhal), Humedad y Cenizas (Gravimetría). El contenido de nutrientes, P y B (Colorimetría) y Ca, Mg, Na, K, Fe, Mn, Zn y Cu (Espectrofotometría de absorción atómica).Resultados: El contenido de HCN es más alto en brotes crudos y, disminuyó notablemente con los tiempos de cocción. Al hervir durante 15 minutos se redujo en 73 %; con 30 minutos fue del 93.64 % y durante 60 minutos disminuyó 98.7 %. Los componentes bromatológicos de brotes de bambú bajo diferentes tiempos de cocción presentan variaciones más contrastantes en el porcentaje de grasa, proteína y cenizas. La cantidad de grasa,  proteína y humedad aumentan de acuerdo al tiempo de hervor, la fibra cruda es mayor en brotes hervidos entre 15 y 30 minutos. El análisis nutrimental del tejido vegetal mostró que el P, K, Fe, Mn y Zn disminuyeron su contenido con el tiempo de cocción, mientras que el N, Ca, Mg, Na, B y Cu, incrementaron su porcentaje.Conclusión: El bambú representa una alternativa de nutrición diferente, es una planta abundante, fácil de cosechar, no requiere  cuidados extensivos, representa además un alimento que cuenta con un alto contenido nutricional. Los brotes de bambú en forma cruda no son aptos para consumo humano, requiere de algún método para eliminar toxicidad; los brotes deben procesarse adecuadamente ya que contienen glucósidos cianogénicos tóxicos. El uso de tiempos de cocción adecuado elimina   la toxicidad  por reducción del compuesto cianogénico, conserva sus valores nutricionales y su consumo puede ser una alternativa accesible, económica y nutritiva en comunidades rurales de escasos recursos.
Barriers and opportunities for behavior change in managing high water demand in water scarce Indigenous communities: an Australian perspective
Authors: Aldirawi Safaa , Souter Regina , Beal Cara D.
Published: October 2019

Managing water demand by reducing water consumption and improving water use efficiency has become essential for ensuring water security. This research aimed to identify the primary determinants of household water consumption in an Australian Indigenous community to develop evidence-based water demand management policies and strategies that might be implemented by the water service provider. A behavior change framework was applied to investigate the opportunity, ability, and motivational determinants affecting household water consumption and conservation in an Australian Indigenous community. The lack of water conservation knowledge and skills of high water users could be barriers to saving water. Low water users have positive attitudes towards water conservation and a higher level of awareness about their own water use. While there is a lack of a belief that water shortages will occur, low water users do have concerns of vulnerability to droughts, and that could be a driver for their sense of obligation to engage in water conservation practices. The research recommended communication messages and tools to address identified barriers to enabling positive changes to water use behaviors, which have wider applications in remote Australian Indigenous communities.
Removal of emerging pathogenic bacteria using metal-exchanged natural zeolite bead filter
Authors: Ivankovic Tomislav , Dikic Jelena , du Roscoat Sabine Rolland , Dekic Svjetlana , Hrenovic Jasna , Ganjto Marin
Published: October 2019

Hospital wastewaters can become a route for dissemination of antibiotic-resistant bacteria to the environment if not properly treated. Some of these bacteria are able to survive conventional disinfection treatments (e.g. chlorination, UV irradiation), which evokes the need for novel disinfection methods. The metal-exchanged zeolites were tested as novel antibacterial agents for wastewater treatment. The natural zeolite clinoptilolite enriched with silver (AgNZ) showed far better antibacterial activity towards hospital pathogenic bacterium Acinetobacter baumannii when compared with copper-exchanged zeolite (CuNZ), with minimal bactericidal concentration of 0.25–2 (AgNZ) compared with 32–64 mg L−1 (CuNZ) in a batch system and respective log 5.6 reduction compared with log 0.5 reduction in a flow system with pure bacterial culture. In the flow system with real effluent wastewater from the treatment plant, the removal of carbapenem-resistant bacteria using AgNZ was 90–100% during the 4 days of the experimental run. These results indicate that the AgNZ efficiently removes pathogenic bacteria from the wastewater, including A. baumannii, and is promising as a disinfectant material in a bead filter system.
GIS en bodemverontreiniging
Authors: Zomerplaag Jos
Published: October 2019

Bodemonderzoek is een kostbare zaak envereist grote expertise. Er moeten veelbodemmonsters worden genomen, die ineen laboratorium onderzocht moeten worden.Vroeger werden de resultaten moeizaammet de hand verwerkt en geanalyseerd.Tegenwoordig worden deze takenveel sneller-en nauwkeuriger per computeruitgevoerd, waarbij geografische informatiesystemen(GIS) een grote rol spelen.Daarom in de reeks 'De gebruiker aan hetwoord' deze keer aandacht voor een bedrijfdat gespecialiseerd is in bodemonderzoeken zich al sinds 1928 bezighoudt met ruimtelijkeinformatie.
Hospitaverhuur nog te veel in zwart circuit
Authors: Beijering Reina
Published: October 2019

De jaarlijks terugkerende schaarste opde markt voor onzelfstandige woonruimte,die met name gevoeld wordt inde studentensteden, wordt elk jaar nade zomervakantie uitgebreid besprokenin de media. De uitspraken over deproblematiek reiken vaak niet verderdan 'de vraag is nog steeds groot' of'het aanbod kan niet aan de vraag voldoen'.Getalsmatig blijkt er echter weinigvast te stellen. Dit was vorig jaarvoor de Directie Onderzoek en Kwaliteitszorgvan het Directoraat Generaalvan de Volkshuisvesting aanleidingnader onderzoek te laten doen naar eenspecifiek onderdeel van de kamermarkt:de hospitaverhuur.
Leveraging Interdisciplinary Education Toward Securing the Future of Connected Health Research in Europe: Qualitative Study
Authors: Chouvarda Ioanna , Mountford Nicola , Trajkovik Vladimir , Loncar-Turukalo Tatjana , Cusack Tara
Published: October 2019

Background

Connected health (CH) technologies have resulted in a paradigm shift, moving health care steadily toward a more patient-centered delivery approach. CH requires a broad range of disciplinary expertise from across the spectrum to work in a cohesive and productive way. Building this interdisciplinary relationship at an earlier stage of career development may nurture and accelerate the CH developments and innovations required for future health care.

Objective

This study aimed to explore the perceptions of interdisciplinary CH researchers regarding the design and delivery of an interdisciplinary education (IDE) module for disciplines currently engaged in CH research (engineers, computer scientists, health care practitioners, and policy makers). This study also investigated whether this module should be delivered as a taught component of an undergraduate, master’s, or doctoral program to facilitate the development of interdisciplinary learning.

Methods

A qualitative, cross-institutional, multistage research approach was adopted, which involved a background study of fundamental concepts, individual interviews with CH researchers in Greece (n=9), and two structured group feedback sessions with CH researchers in Ireland (n=10/16). Thematic analysis was used to identify the themes emerging from the interviews and structured group feedback sessions.

Results

A total of two sets of findings emerged from the data. In the first instance, challenges to interdisciplinary work were identified, including communication challenges, divergent awareness of state-of-the-art CH technologies across disciplines, and cultural resistance to interdisciplinarity. The second set of findings were related to the design for interdisciplinarity. In this regard, the need to link research and education with real-world practice emerged as a key design concern. Positioning within the program context was also considered to be important with a need to balance early intervention to embed integration with later repeat interventions that maximize opportunities to share skills and experiences.

Conclusions

The authors raise and address challenges to interdisciplinary program design for CH based on an abductive approach combining interdisciplinary and interprofessional education literature and the collection of qualitative data. This recipe approach for interdisciplinary design offers guidelines for policy makers, educators, and innovators in the CH space. Gaining insight from CH researchers regarding the development of an IDE module has offered the designers a novel insight regarding the curriculum, timing, delivery, and potential challenges that may be encountered.
Subsitusi Protein Hewani dengan Tepung Kedelai dan Khamir Laut untuk Pakan Patin (Pangasius sp.) dan Kerapu Tikus (Cromileptes altivelis)
Authors: Febriani Mivida
Published: October 2019

The objective of this research was to know protein and energy digestibilities of marine yeast, as substitution for soybean meal in the ration of patin (Pangasius sp.) and humpback grouper (Cromileptes altivelis).This experiment used completely randomized design with four treatments in triplicates. The treatments were R1 (100% animal protein); R2 (90% animal protein+10% soybean meal); R3 (90% animal protein+5% soybean meal+5% marine yeast); and R4 (90% animal protein+10% marine yeast). The digestibility of protein in ration of patin was significantly different (P<0.01). Marine yeast in patin ration also improved the growth rate (P<0.05). Substitution soybean meal with marine yeast in ration of patin was not influence the energy digestibility and feed conversion ratio (FCR) (P>0.05). Rations with 5 and 10% of marine yeast improved energy and protein digestibility, growth rate and decreased the FCR. Digestibilities of protein and energy, growth rate and FCR in humpback grouper were significantly different (P<0.01) among treatments. Marine yeast in ration of humpback grouper increased digestibilities of protein and energy. However, substitution of animal protein with soybean meal and marine yeast decreased growth rate and improve FRC in humpback grouper.
APLIKASI MINYAK CENGKEH SEBAGAI OBAT BIUS PADA KAKAP PUTIH (Lates calcarifer Bloch)
Authors: Hanggono Bambang
Published: October 2019

The objective of this study was to determine the safety and efficacy of clove oil as an anesthetic in sea bass (Lates calcarifer) and the potential application of clove oil as anesthetic to facilitate the sea bass fry transportation. Acute toxicity test indicated the 24-hr LC50 value of clove oil in sea bass fry as 30 ppm with slope function of 1.079 (1.05 to 1.107). In efficacy test, fish were exposed to 5, 10, 15, 20 and 25 ppm of clove oil for 15 minutes. At 5 ppm, clove oil caused only sedation effect (partial loss of reaction to external stimuli) while at 20 ppm, fish entered anesthesia stage (failure to respond to external stimuli) within about 3 minutes. Fish recovered from a 15-min period of exposure in 20 ppm clove oil within less than 10 minutes following removal from the anesthetic solution. There was neither mortality nor abnormal behavior of fish during 15-min exposure of clove oil as well as during 7 days post recovery from anesthesia. The potential application of clove oil as an aid in the transport of sea bass fry in plastic bag was also investigated. At 5 ppm, clove oil could reduce activities of the fish without loss of equilibrium (sedation stage) during the 4 hour simulated transport at 50 fish per 1,000 ml sea water (15 ppt). At 20 ppm, clove oil caused loss of equilibrium in fish resulting in the anesthesia stage throughout the 4 hour period. However, there was no improvement on survival rate and fish behavior with the use of clove oil during and after this 4 hour transport. Simulated transport at 50 fish per 500 ml sea water (15 ppt) for 8 hour did show better significant survival rate with additional of 5 and 20 ppm clove oil. In both short and long term transport study, clove oil did show the benefit by reducing the fish activities judging from the reduction of oxygen consumption, ammonia and carbon dioxide levels. Addition of appropriate concentration of clove oil in transport water ensured that the fish would stay calm by reducing fish activity and therefore, prevented any drastic changes of water qualities.
Peningkatan Respon Imun Non-Spesifik Benih Kerapu Bebek, Cromileptes altivelis dengan Imunostimulan dan Bakterin terhadap Infeksi Viral Nervous Necrosis (VNN)
Authors: Roza Des , Johnny Fris , Tridjoko Tridjoko
Published: October 2019

An experiment to evaluate the effectiveness immunostimulant and bacterin on humpback grouper have been conducted at the Disease Laboratory of Research Institute for Mariculture, Gondol, Bali. The experiment was designed in completely randomized design with four treatments in duplicates. Two hundred of humpback grouper juveniles (15-18 cm of total length, 55-65 g of body weight) were injected intraperitoneally with (A) bacterine at 107 cfu/kg body weight (BW), (B) peptidoglycan at 100 mg/kg BW, and (C) immuno star at 100 ml/kg BW, (D) control. The fish were then challenged with VNN by intramuscular injection at 10 days post treatment. Results showed that survival rates of juvenile after challenged with VNN were 60.00% (B & C), 53.34% (A), and 1.67% (control). Parameters of non-spesific immune respons showed that phagocytic activities were 17.56% (B), 17.55% (C), 13.11% (A), and 9.33% (control). In addition, lisozyme activities were 1.64 cm (B), 1.58 cm (C), 1.55 cm (A), and 1.46 cm (control). Immunostimulant and bacterin stimulated non-specific immune response, and increased survival rate of humpback grouper juvenile.
Polimorfisme Enzim Glucose-6-Phosphate Isomerase pada Tiga Populasi Tuna Sirip Kuning (Thunnus albacares)
Authors: Permana Gusti Ngurah , Hutapea Jhon H. , Moria Sari Budi , Haryanti Haryanti
Published: October 2019

Samples of yellowfin tuna (Thunnus albacares) were taken from three locations Bali, North Sulawesi and North Maluku. The glucose-6-phosphate isomerase (GPI) was analyzed from liver using allozyme electrophoresis method. Polymorphism of GPI enzyme was observed and four alleles (A, B ,C, D) were found in Bali population, three alleles (A,B,C) were found in North Maluku and North Sulawesi populations. Heterozygosity values, from Bali, North Maluku and North Sulawesi were 0.419; 0.417; 0.143 respectively. Genetic distance between North Sulawesi and North Maluku were 0.029, and with Bali population was 0.353. These results indicated that North Maluku and North Sulawesi population were not separate by geographic barrier, therefore genetic distance of both populations was closed. However, those populations were genetically separated to the Bali population might be due to major hydrological barrier.
Kandungan Zat Gizi dan Potensi Antibakteri Ikan Laut Dalam di Selatan Jawa
Authors: Suseno Sugeng Heri , Suman Ali , Al Fanany Fanni
Published: October 2019

The research was mainly carried out to know nutrition composition and antibacterial potency of deep sea fish in south Java sea. Results showed that protein, fat, ash, and moisture contents of deep sea fish, Coelorincus longissimus, Coryphaenoides sp., Pereichthydae, Ophidiidae sp., Nomeidae, Satyrrichtys welchi, Dropus pragillis, Parascolopsis sp., Glytophidian sp., Hydrolagus sp., Ophidiidae, and one of unidentified species were 11.13-18.21%, 1.03-7.72%, 0.67-3.93%, and 70.70-86.30%, respectively. Nomeidae, S. welchi,. Parascolopsis sp., Hydrolagus sp., Ophidiidae, Pereichthydae, and one of unidentified species contained 17 amino acids with 9 essensial and 8 nonessensial amino acids. The essensial amino acids included histidine, arginine, threonine, valine, methionine, isoleucine, leucine, phenylalanine and lysine. The nonessensial amino acid were aspartic acid, glutamic acid, serine, glycine, alanine, proline, tyrosine, dan cysteine. Antibacterial experiment showed that meat extracts of Nomeidae, S. welchii, Parascolopsis sp. exhibited antibacterial activity against Staphylococcus aureus at 700 ppm with 0.25-2 mm of inhibitor zones. Meat extract of Nomeidae, S. welchii, Parascolopsis sp., Hydrolagus sp. at the same concentra-tion also produced 0.5-5 mm inhibition zones against Eschericia coli. Meat extract of S. welchii at 1,000 ppm produced 36 and 30 mm inhibition zones against S. aureus and E. coli, respectively.
Feminisasi Nila (GIFT), Oreochromis sp. Menggunakan Hormon Estradiol 17-β
Authors: Kurniasih Titin , Arifin Otong Zenal , Marizal Marizal
Published: October 2019

Research to find out the effect of oral administration of estradiol 17-β  on feminization of Oreochromis sp. (GIFT) fry was carried out at Cibalagung Research Station. Five different concentrations of estradiol 17-β  i.e.: 60, 80, 100, 120 and 0 mg/kg feed, were given to larvae of 6 days old twice a day for 21 days in triplicates. The result indicated that there was significant difference of average percentage of female between control and treatments.The highest percentage of female was obtained from fish treated with 100 mg estradiol /kg feed (86.6%), whereas the lowest was obtained from fish control (51.7%). The survival rate and length growth were not significantly different. Survival rate of larvae ranged from 94 to 97.7% and the average of length growth ranged from 10.08 to 13.32 mm.
Evaluasi Laju Pertumbuhan, Keragaman Genetik Dan Estimasi Heterosis pada Persilangan Antar Spesies Ikan Patin (Pangasius sp.)
Authors: Ariyanto Didik , Utami Retna
Published: October 2019

Thai catfish (Pangasius sp.) is one of the most popular cultured catfish in Indonesia. There are 2 species Thai catfish i.e. P. hypopthalmus which introduced from Thailand in 1972 and P. djambal an endogenous Indonesian fish. The aims of this research were to evaluate the growth rate, genetic variability and heterosis estimacy on interspecific crossing of these species. The result showed that the growth rate of F1 P. hypopthalmus X P. djambal was better than its parents. Genetic variability of P. hypopthalmus, P. djambal and their hybrids were 12.54, 12.38, and 27.02, respectively, and heterosis estimacy of their hybrids on growth (length and weight) were in high categories about 48.98-257.90%.
PENGARUH PERBEDAAN KANDUNGAN ASAM LEMAK N-3 DALAM PAKAN TERHADAP PENAMPILAN REPRODUKSI IKAN ZEBRA (Brachydanio rerio)
Authors: Utomo Nur Bambang Priyo , Mokoginta Ing , Nurmalia Lia
Published: October 2019

This experiment was conducted to determine the dietary n-3 fatty acid requirement for reproduction of broodstock zebrafish, Brachydanio rerio. Three isonitrogenous (39% crude protein) and isocaloric (3,260 kcal digestible energy/kg diet) practical diets, namely diets A, B, and C, with different levels of fatty acids were fed to zebrafish broodstock. The broodstock were cultivated in aquaria. Diet A contained low dosage of n-3 fatty acids (0.4%) and 2% n-6 fatty acids, while diets B and C contained 2% n-6 fatty acids, combined respectively with 1% and 1.5% n-3 fatty acids. Fish were fed ad satiation for 60 days using these diets. During feeding periode, gonade maturation stages were examined. The n-3 and n-6 fatty acids affected fecundity, fertilization rate, and hatching rate. On the other hand, fish fed on diets A, B, or C did not show any significance differences in the gonade somatic index and total Survival Rate (SR) of larvae produced. Fish fed on diet B produced the highest fecundity (616 eggs/g of fish), fertilization rate (94.6%), and hatching rate (93.8%). The total lipid content of eggs were significant, ranging from B (29.7%), C (23.7%), and A (16.1%). At a dosage of 2% n-6 fatty acids, zebrafish require 1% of dietary n-3 fatty acids in the diet for reproduction. Excess dosage of n-3 fatty acid in the diet adversely affected fecundity, fertilization rate, and hatching rate.
Seahorse Hydrolisate (Hippocampus kuda) and Anti-Inflammatory Activity Test with Protein Denaturation Inhibition Method
Authors: Nasution Nur Azizah , Nurilmala Mala , Abdullah Asadatun
Published: October 2019

Seahorse is marine biota that have commercial value and used as ornamental fish and traditional medicinal ingredients. Utilization of seahorses has still not been extensively studied, especially in the form of hydrolysates. Hydrolysates of seahorses are known to have efficacy in biological activity. This study was conducted to identify seahorse morphometrics, determine selected enzymes based on the degree of hydrolysis and determine the anti-inflammatory activity of hydrolysates. The results showed that morphometric identification showed morphological characteristics of Hippocampus kuda, namely the number of body rings 12 units, tail ring 35 units, eye protrusion and cheeks as much as 1 unit, average head length of 3.5 cm, number of body rings on dorsal fin 3 units. The best degree of hydrolysis of seahorses is protein hydrolysis using alkalase enzyme of 42.49%. The highest anti-inflammatory activity on sea horse hydrolyzate has %inhibition of 42.88%.
JENIS DAN SEKS-RASIO UDANG BARONG (Panulirus spp.) DI KAWASAN PANTAI GUNUNG KIDUL, YOGYAKARTA
Authors: Wirosaputro Sukiman
Published: October 2019

Activity researched for lobster in coastal area Gunungkidul Yogyakarta began November, 1995 to Februari, 1996. Number of lobsters to identify were 3,755 head for species and 1,525 head for sex-ratio. Number of species were 6kinds, there were : Panulirus pencillatus (56.48%), P. homarus (30.38%), P. longipes (6.73%), P. ornatus (5.40%), P, versicolor (0.95%), P. polyphagus (0.06%). General sex-ratio between male:female = 1.83:1.00. number of female carrying eggs 3.40% and not carrying eggs 32.54%. Sex-ratio for each species between male:female for P. penicillatus, P. homarus, P. longipes, P. ornatus, P. versicolor, P. polyphagus, were = 1.83:1.00 ; 1.71:1.00 ; 2.20:1.00 ; 0.97:1.00 ; 2.40:1.00 ; 1.00:0.00 respectively.
PENGARUH VAKSINASI INDUK LELE DUMBO (Clarias gariepinus) TERHADAP KELULUSHIDUPAN, PERTUMBUHAN BENIH DAN PRODUKSI IKAN
Authors: Triyanto Triyanto , N. Kamiso H. , Isnansetyo A.
Published: October 2019

In Indonesia, outbreak of MAS on cultured African catfish  occurs periodically. The outbreek seems relate closely to quality of fry,. High quality fry and proper handling will ensure the successful of African catfish culture. Vaccination on vrooders is one of methods to produce high quality of African catfish fry. The objectives of this experiment  were to know effect of fingerling produced by vaccination brooders on survival., growth rate, and fish production  during grow out periode. Female and male brooders were vaccinated by intraperitoneal and intramuscular injection of 0.5 ml vaccine respectively. Unvaccinated brooders were used as control. Those brooders were spawned 2-4 weeks after vaccination. Fry which produced by unvaccinated brooders was reared separately in paddy field pond 15 days for the first nursery rearing. Fingerling produced by the second nursery rearing period was used for grow out for 3 mounths. Results of this experiment indicated that brooders vaccination could increase survival rate and production of African catfish approximately 22.16% and 9.94% from control respectively. However, the length and weight of fingerling produced by vaccinated brooders were lower than fingerling produced by unvaccinated brooders
UJI KONSENTRASI PENGHAMBATAN MINIMAL, RESISTENSI DAN PENGGUANAAN ANTIBIOTIK UNTUK MENANGGULANGI PENYAKIT MOTIL AEROMONAS SEPTISEMIA (MAS) PADA LELE DUMBO (Clarias gariepinus)
Authors: N. Kamiso H. , Triyanto Triyanto , Hartati Sri
Published: October 2019

Five isolates of A. hydrophila were used for MIC, and resistency test to rifampicin, kanamycin, chloramphenicol, erythromycin and oxytetracyclin by dilution method with TSB medium. The results indicated that the bacteria had various degree of sensitivity to these antibiotics. Resistency of bacteria isolates increase 1.3 to 6.2 times after they were passaged three times to MIC of the drugs or antibiotics by dilution method. Other test was kanamycin medication conducted by i.p. injection, immersion, and oral methods. The result showed that all kanamycin medication methods were effective to decrease mortality rate caused by A. hydrophilia infection. Oral medication method was the most effective compare to other methods because this method could minimize stress during handling. However, oral medication took much longer time (15 days) than immersion and injection methods (few minutes).
STUDI KESESUAIAN LAHAN PESISIR UNTUK TAMBAK DI KECAMATAN NGOMBOL KABUPATEN PURWOREJO
Authors: Triyatmo Bambang
Published: October 2019

The objective of this study was to know the feasibility of the coastal area for shrimp and fish pond based on physical, chemical and biological parameters of soil and water as well as topographycal situation.The results of the study indicated that : .i). the coastal area in Ngombol district Purworejo regency was suitable for pond, .ii). the area have two kinds of land units, namely clay alluvial and sandy land units, iii). the former one was suitable for conventional pond constraction, fertile and acid soil, .iv).  the latter  was unsuitable for conventional pond constraction, unfertile and slightly-netral soil, .v). the water for shrimp and fish culture might be supplied from Cokroyasan and Lereng rivers (fresh-brackiswater),  well (freshwater), and directy from intestidal zone for seawater.vi). in general, the water quality were suitable for shrimp and fish  culture.This study suggested that in the clay alluvial soil, extensive and intensive ponds might be developed. However, intensive pond should be developed in the area with sandy soil.
KAJIAN MORFOMETRI BERDASARKAN TOPOGRAFI DAN POTENSI PERIKANAN WADUK SERMO
Authors: Triyatmo Bambang
Published: October 2019

The  objectives of this studies was to know morphometric characteristics, primary productivity of water, and the fisheries potency of Sermo reservoir. Topography and fisheries potency were estimated based on a morphometrical study of Sermo reservoir after inundation. The study was conducted on the topographical maps with 1 : 12,500 scale and 10 m contour intervals. The primary productivity of Sermo reservoir after inundation was observed.The results showed that Sermo reservoir had an optimal level 136.6 m msl with a total water area 157 ha, water volume 25 millions m3, length of shore line 16,3 km and shore line development index 3,67. The primary productivity of water ranged from 2.2 to 178.7 mg C/m3/h. Potential area for fish culture using floating net cage was 1.5 ha with total production around 300 ton/year. The potency for endogenous and introduction fish production in the Sermo reservoir was approximately 5-10 ton/year.
SENSITIFITAS UDANG Litopenaeus stylirostris DAN Penaeus monodon TERHADAP INFEKSI SEMBV (SYSTEMIC ECTODERMAL AND MESODERMAL BACULOVIRUS)
Authors: Taslihan A. , Handayani R. , Suryati Suryati , Fahris N.
Published: October 2019

Study on sensitifity of two shrimps species, there were blue shrimp (Litopenaeus stylirostris) and giant tiger shrimp (Penaeus monodon) against local isolat of SEMBV (systemic ectodermal and mesodermal baculovirus) has been undertaken. The objective of  the study were to know sensitivity level of the two shrimp species to virus that cause serious disease namely WSDV (white spots disease virus). Result from the study showed that both shrimps are sensitive to the virus. Inoculating virus through injection caused  transmission faster than that by feeding shrimp with infected carcass. Blue shrimp also showed relatively sensitive to SEMBV then that of giant tiger prawn.
ANALISIS KERAGAMAN BENTUK TUBUH IKAN NILA STRAIN GIFT PADA TIGA TINGKATAN UMUR YANG BERBEDA
Authors: Ariyanto D.
Published: October 2019

A study aimed to identify morphology variability of nile tilapia (Oreochromis niloticus) strain GIFT (Genetic Improvement of Farmed Tilapia) by using standard measurement and multivariate analysis method was conducted. Elevan characters were measured at 141 fishes representing 3 levels of age (0-3 month, 3-6 month and more than 6 month) of nile tilapia strain GIFT. Multivariate analysis of variance (manova) and Pricipal Component Analysis (PCA) were applied to explore the morphological variability.The result showed that body shape of fry (0-3 month of age) was different from fishes with 3-6 month of age (consumption size), also from the broodstock. At the early level of age, development of the body shape was growth in width and length. At the consumption size and broodstock levels, the development of body shape was growth in fat too.
PENGARUH SUHU AIR TERHADAP DAYA TETAS TELUR DAN PERKEMBANGAN LARVA NILA MERAH (Oreochromis sp.)
Authors: Rustadi Rustadi
Published: October 2019

Artificial incubations of red tilapia eggs and fry were conducted in the effort to increase fish seed production and its quality. These experiments were done to determine suitable water temperature for egg incubation and larvae rearing. Four different water temperature­s, 24, 27, 30, and 33oC with variance 1oC and ambient temperature were tested in triplicates. One liter of plastic incubators made from soft drink bottles were set to water re-circulation system and provided with filter means.The fertilized eggs were stocked at 150 eggs. The hatching rate of egg increased as the increase of water temperature. The increase of water temperature decreased the incubation time of eggs, but increased hatching rate and the growth of larvae. The optimum water temperature was 29,87oC.
ANALISA JUMLAH KROMOSOM IKAN MAS KOKI (Carrasius auratus) TETRAPLOID YANG DIHASILKAN DENGAN METODE KEJUTAN PANAS
Authors: Rustidja Rustidja
Published: October 2019

The objectives of research was to analyses the chromosome numbers of tetraploid goldfish (Carassius auratus) produced by heat shocking method. The tetraploidy was carried out 29 minutes after fertilization of eggs by heat shocking for 1.5 minutes at 400C.The chromosome number was analyzed with the modus of chromosomes.The results indicated that 1)  the diploid control of goldfish has 100.28% + 0.0982 chromosom  with modus numbers of  100, and the tetraploid goldfish has 199.94 + 0.982 chromosomes with number of modus at 200. 2)  The effectiveness of the heat shocking method in goldfish for tetraploidy was 46.60%.The hatching rate of diploid control (65.068% + 0.52%) was significantly diferent with that of  tetraploid fish (24.53% + 1.649%). In addition, the survival rate of diploid controls (86.875% + 6.287). was significantly different with that of tetraploid goldfish (34.274% + 19.289%) and the specific growth rates of diploid controls (5,104 + 0,074) was not significantly diferent that of with tetraploid fish (3.982 + 0.011).
PEMANFAATAN LAMPU LISTRIK UNTUK PENINGKATAN HASIL TANGKAPAN PADA BAGAN APUNG TRADISIONAL DI PELABUHAN RATU
Authors: Ta’alidin Zamdial
Published: October 2019

The objectives of this research were to know the effect of  different light sources on the total catch, species composition and size of fish captured by traditional lift net.  This research was conducted at the Pelabuhan Ratu Waters,West Java.Fishing experiment was conducted for 12 hours each night, for 5 night.  Fishing operation was conducted alternately for two hours using kerosene lamp and electric lamp.The light illumination, temperature, salinity and water current were measured after setting the gear, while the catch data were measured after hauling.  The maximum light penetration of kerosene lamp was able to reach 9 m depth (at the center of lift net), 8 m (at the middle of lift net) and 6 m (at the corner of lift net).  In addition, by using  kerosene and electric lamps, the light penetration was able  reach 11 m (at center and midlle of lift net) and 12 m (at the corner of lift net).The total catch of lift net using kerosene lamp was  85.12 kg (9,086 fishes) comprise of 12 spesies with sizes  5.3 – 42.7 cm, while the total catch using combination of kerosene and electric lamps was  148.67 kg (12,685 fishes) comprise of 18 spesies with sizes 5.95 – 52.78 cm.The results showed, that  the combination of kerosene and electric lamps  was able to increase the  total catch.
INVENTARISASI ZOOPLANKTON UNTUK PAKAN ALAMI LARVA UDANG KARANG (PANULIRUS HOMARUS L.) DI TELUK WEDI OMBO, GUNUNG KIDUL, YOGYAKARTA
Authors: Trijoko Trijoko , Pasaribu Diana U.W.
Published: October 2019

The aim of the research was to know the diversity of  zooplankton in Wedi Ombo Bay, Gunung Kidul, Yogyakarta, as candidates of live feed for spiny lobster (Panulirus homarus L.) larvae. Samples were  collected from August 2002 to January 2003 by using Van Dorn tubes water sampler at 0 m, 5 m and 10 m of water depth for each sampling point. The zooplankton was identified to the genera level.The result showed that 8 subclass zooplankton compraised of 24 genera, i.e. 15 genera of Copepoda, 2 genera of Branchiopoda, 1 genera of Ostracoda, 1 genera of Polychaeta, 2 genera of Rotifera, 1 genera of Malacostraca, 1 genera of Heteropoda and 1 genera of Appendicularia were found in Wedi Ombo Bay. Calanus had the highest dominance with density of  479 /50 l (24.1%). This zooplankton was  found in each depth of water. Acartia had the lowest dominance with density of 12/50 l (0,6%). Based on the opening mouth of P. homarus larvae (114 µm), it was found that the18 genera of zooplankton had sizes less than 114 µm which might be suitable for live feed of P. homarus larvae. However, 6 genera of zooplankton had sizes more than 114 µm which might be unsuitable for live feed of P. homarus larvae.Based on the abundance of zooplankton, the size of zooplankton and the opening  mouth of spiny lobster larvae, the best candidates of zooplankton for live feed of P. homarus larvae were Calanus an holoplanktonic copepod and Brachionus, a Rotifera.
MONITORING PARASIT PADA BUDIDAYA IKAN DAN UDANG DI DAERAH ISTIMEWA YOGYAKARTA
Authors: Triyanto Triyanto , Isnansetyo Alim
Published: October 2019

Parasites often cause the great loss in aquaculture either in fish or shrimp aquacultures. The loss will become more serious when fish or shrimp are secondary infected especially by bacteria. The objective of this study was to identify parasites in fish and shrimp culture inYogyakartaSpecialProvince (DIY). Samples of fish and shrimp were collected from several aquaculture centers in this region including several fish and shrimp hatcheries. Observation of parasites was conducted microscopically and macroscopically.Results showed that giant tiger prawn (Penaeus monodon) cultured in DIY was often infected by Zoothamnium sp. and Gregarines sp.. In addition, giant freshwater prawn (Machrobrachium rosenbergii) was often infected by Apiosoma sp., Dactylogyrus sp., Epystilis sp., Glossatella piscicola, Gregarines sp. and Zoothamnium sp.. Moreover Apiosoma sp.,  Dactylogyrus sp., Gyrodactylus sp., Ichthyopthirius sp., and Trichodina sp. were found in nile (Oreochromis niloticus) culture. Similar parasites such as Apiosoma sp., Dactylogyrus sp., Henneguya sp. Ichtyoptirius sp. and Trichodina sp..were found in Osphronemus gaurami. Ichtyoptirius sp. and Trichodina sp. also were found in walking catfish (Clarias gariephinus).
ANALISIS EFISIENSI TEKNIS USAHA BUDIDAYA PEMBESARAN IKAN KERAPU DALAM KERAMBA JARING APUNG DI TELUK LAMPUNG
Authors: Tajerin Tajerin
Published: October 2019

Level of technical efficiency in fish culture reflecting the fish farmers achievement correlated to their managerial competency to manage the principle factors affecting its productivity.  Objectives of this research were to evaluate technical efficiency in grouper growth out as well as its policy implication. This research was conducted in Lampung Province during September to December 2002. The area was selected by purposive sampling in Padang Cermin Sub district, South Lampung, and the respondent of farmers were selected by census method. The results showed that the average of technical efficiency level achieved by grouper farmers in floating net cages should be classified in middle to high categories with relatively homogen distribution. Principle factors affecting the technical efficiency was level of income from farming fish culture. As the technical efficiency level closed to the frontier, policy of culture development should be conducted using area-based extensive culture approach and should applicate imperative and innovative technologies.
POLA PENYEBARAN SEL MUKUS PADA SALURAN PENCERNAAN IKAN TAWES (Punctius javanicus)
Authors: Purbomartono Cahyono , Susatyo Priyo , Setiawan Arif
Published: October 2019

This research was conducted on digestive system of Java carp (Puntius javanicus). Gut of   fish samples was processed for histological preparation, stained with  periodic acid shiff’s (PAS) staining.The results of this research showed that the properties of mucus cells in the digestive tract of Java carp was comprised of goblet cells. The total number of goblet cells in the mid gut was higher  than that of in the foregut and hindgut.  Morphology of goblet cells  in the foregut and hindgut was round in shape but spherical on the midgut.
ISOLASI, IDENTIFIKASI DAN KARAKTERISASI Vibrio spp. PATOGEN PENYEBAB VIBRIOSIS PADA KERAPU DI BALAI BUDIDAYA AIR PAYAU SITUBONDO
Authors: Nitimulyo Kamiso Handoyo , Isnansetyo Alim , Triyanto Triyanto , Istiqomah Indah , Murdjani Muhammmad
Published: October 2019

This research was conducted to isolate, identify, and characterize pathogenic Vibrio spp., causative agents of vibriosis in grouper at Brackishwater Aquaculture Development Center (BADC), Situbondo. Twenty-nine isolates were isolated from wound, gills, eyes, liver, and ren of grouper with vibriosis on Thiosulphate Citrate Bile Sucrose Agar (TCBSA) medium. Koch Postulate Test was conducted to determine pathogenic Vibrio spp., by intraperitoneal injection to humpback grouper (Cromileptes altivelis) (9-10 cm of total length) at 106 cells/fish in triplicates. Results indicated that the pathogenic Vibrio spp., causative agents of vibriosis in grouper at BADC, Situbondo were identified to be V. alginolyticus, V. anguillarum, V. metchnikovii, V. vulnificus, V. fluvialis, V. furnisii, and V. parahaemolyticus. Infection of the pathogenic Vibrio spp. caused acute mortality within 17-46 hours with specific disease signs like haemorhagic on fins (pinnae pectorales, pinnae abdominales, pinna analis) and also on the body. These results suggested that vibriosis should be monitored and controlled properly and quickly.