TORANI: Journal of Fisheries and Marine Science
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Use of Dissolved Glucose on Cultured Media on the Survival Rate, Growth Rate and Stress Resistance of Saline Tilapia Larvae (Oreochromis niloticus)
No full textSaline tilapia fish is a result of technology engineering technique that is tolerant with brackish waters and sea with salinity ≥ 20 ppt. The main problem in the development of saline tilapia is the availability of seeds because the resulting synthesis is still low. One effort to overcome the problem of low tilapia salinity this is by providing dissolved organic material such as glucose. Glucose plays an important role as a source of energy for animals including tilapia. The aim of this research is to determine the optimum dose of dissolved glucose to the survival and growth of salt tilapia larvae (Oreochromis niloticus). The research was conducted from March to May 2017 at Brackish Water Aquaculture (BPBAP) Takalar, South Sulawesi. The research container using 25 L plastic volume basin amounted to 15 pieces. The test animals used were 7-day saline tilapia larvae of 0.03 gram sized for 20 days. The glucose used is pure glucose in powder form. The study was designed using a complete randomized design consisting of 5 treatments and each having 3 replications. The five treatments are 0, 50, 100, 150, 200 ppm per day added to the once-daily research container that is the morning. The result of variance analysis showed that soluble glucose administration had significant effect (p <0.01) on the synthesis and growth rate of saline tilapia fish. The highest survival rates and growth rates were achieved at 100 ppm doses of 94.44% and 14.93% / day respectively, while the lowest at doses of 0 ppm were 74.81% and 11.85% / day respectively.Keywords: glucose, salin tilapia, survival, growth rate
Portrait of Hatchery Management Profile on Rainbow Fish Melanotaenia boesemani (Allen & Cross, 1980) Cultivation in Jakarta Area
Get PDFHatchery managers and maintaining genetic diversity and fitness population in endangered and threatened species in pond is a important and difficult thing to do. But is must to do for conservation biology. Fitness and structure population depends on effective breeding number (Ne) and population connectivity between each other. The second most important thing is gene flow and genetic drift. Ne is major role in the maintenance of genetic diversity as indicator for inbreeding depresion and genetic drift. We sampled 6 hatchery in Jakarta and Bekasi Indonesia region and used 12 polymorphic microsatellite loci to quantify population genetic structure. Result in this study are, each farm have different methode. The old farmers is bapak Gusi and bapak Hasan (+30 years). Ne in bapak Hasan and bapak Gusi hatchery is 66,667 and F value is 0,00749 and loosing allele (P) is 0,26183. Compared with younger farmers bapak Yahya (5 years) have Ne = 133,333, F = 0,00375 and P = 0,06855. Even though hatchery bapak Hasan and bapak Gusi have the same value Ne, F and P but the result in population structure they are different founder populations. Hatchery bapak Hasan have unique structure and alleles composition compared with other hatchery.Keywords: breeding, management, Melanotaenia boesemani, hatchery, population
Analisis Kesesuaian Lahan Rehabilitasi Mangrove di Kecamatan Bontoa Kabupaten Maros Provinsi Sulawesi Selatan
Get PDFMangrove merupakan salah satu ekosistem pesisir yang sangat penting karena memiliki fungsi ekologis serta ekonomis bagi masyarakat pesisir. Saat ini hutan mangrove mengalami kerusakan dari tekanan yang berat akibat pertumbuhan penduduk. Untuk mengurangi kerusakan mangrove maka perlu dilakukan upaya rehabilitasi mangrove. Penelitian ini bertujuan menganalisis dan memetakan kesesuaian lahan untuk mengrove di Kecamatan Bontoa. Manfaat dari penelitian yaitu memberikan informasi tentang analisis kesesuaian lahan untuk rehabilitasi mangrove. Penelitian ini dilaksanakan pada bulan Maret 2011. Metode yang digunakan adalah metode survey lapangan dengan parameter kondisi arus, pasang surut, gelombang, suhu, salinitas, kondisi substrat dan kemiringan lereng. Data dianalisis dengan metode skoring dan diplot berdasarkan peta. Hasil penelitian menunjukkan dua kategori kesesuaian yaitu sesuai dan cukup sesuai. Untuk jenis sesuai didapatkan jenis Rhizophora spp, Avicennia spp, Sonneratia alba , S. caseolaris , Bruguiera parvilofa dan B. Xesangula . Sementara kategori cukup sesuai dari jenis B. gymnorhiza . Kondisi mangrove yang dapat direhabilitasi di Desa Ampelkale sebesar 55,375 ha, Desa Pajukuang 6,636 ha, dan Desa Bontobahari 16,011 ha.Kata kunci : kesesuaian lahan dan rehabilitasi ekosistem mangrov
Marine/Fisheries Resource Using (Case Study Ternate Manucipality, North Molucca)
Get PDFThis research was conducted to know study of marine/fishery resource utilization at Ternate Manucipality, North Molucca when It was carried out at December, 2015 . Method of research was included qualitative descripted method. Research resulting showed that North Molucca has been contributed to export of fishery result which Ternate Manucipality had fisheries potential prospect for developing. Net working trading fresh and fickle fisheries in Ternate started fishermen to small and middle traider. If fresh fisheries was resulted, they would be brought to Manado to process and export later, while resulting of marine product was started from middle traider in Ternate to Tiongkok descent at Makassar and Surabaya that it were exported to the purpose of countries.Keywords: Fisheries resource, net working traiding, marine/fisheries fresh/fickl
Effectiveness of Addition Papain Enzyme in Artificial Diet on the Metamorphosis Rate and Glycogen Content of Mangrove Crab Larvae (Scylla olivacea)
Get PDFIn the rearing of fish larvae, artificial feed can be given when digestive enzymes have been produced. To improve the ability of fish larvae to utilize artificial feeds can be done with the addition of exogenous enzyme into the artificial feeds. The aim of this study was to determine the dose of papain enzyme and the correct predigest artificial feeding stadium on metamorphosis rate and glycogen content of mangrove larvae (Scylla olivacea). The experimental design used was a factorial pattern with a complete randomized baseline design, the first factor being the dose of papain enzyme (0%, 1.5%, 3.0% and 4.5%), while the second factor was the predigest artificial feeding stage (zoea 2 and 3). The results showed that the difference of dose of papain enzyme and predigest artificial feeding stages had significant effect (p <0.05) on the metamorphosis rate of 7, 9, 10, 12, 13, 16 and 17 day larvae, but the interaction between them was not significant (p>0,05). The rate of metamorphosis at doses of enzyme papain was 0% and 1.5% longer and significantly different (p <0.05) compared to 3% and 4.5% doses. The rate of metamorphosis at doses of 3.0% and 4.5% was not significantly different (p> 0.05). The content of glycogen larvae in dose of enzyme papain 4,5% not different than dose 1,5% and 3,0% but higher and significantly different than dose 0%. Glycogen content at dose 0%, 1,5% and 3,0%. was not significantly different (p> 0.05). Based on the results of these studies to hydrolyze feed proteins can be used papain enzyme with a dose of 4.5%.Keywords: papain enzyme, metamorphosis rate, mangrove crab larvae (Scylla olivacea), glycogen conten
The Concentration of Lead in Windowpane Oyster (Placuna placenta) and Potential of Condition Index as a Morphological Biomarker to Detect Metal Pollution
Get PDFAs a filter feeder, windowpane oyster, Placuna placenta, which lives as a sedentary animal is very appropriate to be used as an eco-sentinel organism in marine bio-monitoring campaign. The study of lead (Pb) content in the tissue and shell of P. placenta was conducted in coastal waters of Mandalle, Pangkajene Kepulauan District, South Sulawesi. A hundred of oysters were collected from coastal waters of Mandalle. Morphometry parameters which were length, high, width, and dry weight of tissue were measured in the laboratory. Those parameters were used for determination of Condition Index (CI). Metal was analyzed by Atomic Absorption Spectrometry. The results showed that the contents of Pb in tissue and shell were 0.021 and 0.014 mg/kg DW (dry weight) respectively. The concentration of Pb in tissue was not overreach by BPOM 2009 Number Hk.00.06.1.52.4011 of 1.5 mg / kg DW (dry weight). After calculating Maximum Tolerable Intake (MTI), we found that MTI was 7.79 kg/day. In terms of marine monitoring campaign, we can theoretically use the CI as a morphological biomarker. After calculating the relationship between Pb in tissue and shell, we found that the value of CI was not correlated significantly with Pb content in tissue and shell. However, the correlation coefficient between Pb in tissue and CI was stronger than that in the shell. The potential of CI of windowpane oyster as a morphological biomarker was discussed.Keywords: Placuna placenta, lead, MTI, morphological biomarker
Oceanographic Conditions on Small Pelagic Fishery in the Gulf of Bone Waters
Get PDFThis study aimed to investigate the relationship between the dinamic oceanographic condition and fluctuation in the catch of small pelagic fish. Study on the dinamic oceanographic conditions were focused on the sea surface temperature (SST), chlorophyll-a concentration (SSC) and water depth. The study took place in the area of Gulf of Bone located, data collection was started from April to September 2017. The data were collected using experimental fishing metode (large liftnet) and applications of remote sensing in satellite oceanography, which then analysed using Geographic Information System (GIS) dan Generalized Additive Models (GAMs). The result showed that the distribution of small pelagic fish tends to be within the area of temperature ranging from 29.5 to 30.0oC, the chlorophyll-a from 0.7 to 0.9 mg.m-3 and concentrated within the coastal area with in waters depth maximum of 100 m.Keywords: Oceanography, small pelagic fish, distribution, fishing ground, Gulf of Bon
PERTUMBUHAN IKAN BARONANG LINGKIS, Siganus Canalicullatus (Park, 1797), DI PERAIRAN PANTAI UTARA KABUPATEN KEPULAUAN SELAYAR, SULAWESI SELATAN
No full textWhite-spotted spinefoot, Siganus canalicullatus (Park, 1797) is one of the most economically importantherbivorous fish captured along the coast of Selayar Islands. The present work was undertaken to assess thelength-weight relationship and Fulton\u27s K condition factors of this fish caught in the waters of the northern coastof Selayar Islands District. Those parameters were calculated separately for both sexes. A total of 498specimens of S. canaliculatus consisting of 265 males and 233 females were randomly collected on a monthlybasis between January and June 2015 from local fishermen using gill nets of various mesh size in the coastalwaters of Desa Barat Lambongan, Kecamatan Bontomatene, northern part of Selayar Islands District. The fishwere brought to the laboratory and, after washing, their total length (L) was measured to the nearest 1 mm usinga fish measuring board and the total body weight (W) was recorded to the nearest 0.01 g using an electronicbalance. Each fish was then cut open and the sex were recorded. The length-weight relationships of males andfemales can be expressed as log W = –4.4220 + 2.7772 log L for males, indicated hypoallometric growthpattern; and log W = –4.6840 + 2.9022 log L for females, indicated isometric growth pattern. Overall, conditionfactor values were higher in males than in females.Keywords: condition factor, length-weight relationship, Selayar Islands District, Siganus canaliculatus, whitespottedspinefoo
TRANSFORMASI GELOMBANG DI PANTAI SUKAMARA PROVINSI KALIMANTAN TENGAH
No full textRefraction pattern of waves on the coast Sukamara have been known to conduct research in the year March –April 2014 . The prediction results showed that each season surge wave parameters that form there is adifference. This is because of differences in factors affecting pembangkitkan waves such as wind speed, duration,wind direction, and fetch. I transitional seasons wave direction most of the south and southeast (26.09 %) withheight and wave period at intervals ranging from 2.2 m - 3.1 m and 7.7 s - 8.7 s, the biggest wave of thesouthwest (3.8 m and 9.3 s). East monsoon waves are formed predominantly from the southeast (55.56 %),height and wave period at intervals ranging from 1.7 m - 2.7 m and 6.9 s - 8.1 s. The wave season is from thesouth east which is a storm surge of 3.5 m and 9.0 s. In the second transition back waves varies with thedirection of most of the southeast (26.92%) with height and wave period range in the interval from 1.9 to 3.1 mand 7.2 s - 8,5s. Due to refraction and shoaling pattern, so that the wave will experience changes in height,velocity and wavelength smaller than in the ocean waves. Deflection direction that causes the wave height of thewave decreases due to the speed and wavelength decreases. Convergence (penguncupan waves) generallyoccurs on the contour/coast which juts out (headland) and sund dune area, whereas divergence (spread waves)occur in the contour/coast that juts into the (bay area). Areas experiencing convergence generally cause abreaking wave height greater than the divergence area.Keywords: Sukamara coast, wind direction, wind speed, refraction, konvergen and diverge
KEANEKARAGAMAN JENIS IKAN KARANG DI PULAU BADI DAN PULAU KODINGARENG LOMPO
No full textThe research aim is to know the diversity of coral fish in Badi and Kodingareng Lompo islands. The study isheld from May until June 2014. The samples are taken twice for one month by using belt transect method.Transect lines were put on depth 3 meters and each dept was. The observed region is as long 50-meter transectlines with the shoreline margin 2,5 meter at the left and right side of the transect. Analysis of data isdone by calculating the kinds of compositions, abundance, diversity index, uniformity, and domination. Theresult of this research is the composition of coral fish in each island. In Badi islands the composition of coralfish is 50 kinds of fish from 15 families with 131 fish. In Kodingareng Lompo island, the composition of coralfish is 21 kinds of fish from 9 families with 82 fish. In Badi island , the diversity index is 3.3870 andKodingareng Lompo island is 2.5566, the uniformity index Badi island is 0.2606 and Kodingareng Lompoisland is 0.2527, and the dominantion index Badi island is 0.0461 and Kodingareng Lompo island is 0.0967.Keywords: Diversity, Abundance, Coral fish, Badi island, Kodingareng Lompo islan