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Pemilihan Pakan Alami Untuk Mendukung Pemeliharaan Ikan Capungan Banggai (Pterapogon kauderni) Di Lini Aquaculture Training Center (Latc) Bali Hasrat Damai Hulu; Pande Gde Sasmita Julyantoro; I Wayan Kasa
Metamorfosa: Journal of Biological Sciences Vol 7 No 1 (2020)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2020.v07.i01.p01

This research was aimed to obtain the kind of proper natural food and the optimum dose of feeding in order to support the rearing of banggai cardinal fish breeding. This research used completely randomized design and was conducted during September to December 2016. The kinds of natural food examined were trash fish, abalone (Haliotis glabra), and squid (Loligo pealei). After we found the most preferable food, the examination upon its dose was conducted under 10%, 20% and 30% of the fish weight. The 45 fish sampel have average length and weight of 3 cm and 0,47 g, respectively. Fish were reared in aquarium 95 cm x 45 cm x 35 cm. The foods were given three times a day. The research results show that abalone was mostly consumed compared to other two foods about 0,11 g/fish a day. The result of examining dose showed that the highest rate of fish growth was found under the dose of 30% which resulted 2,07 cm in length, 0,34 g in weight and the dose of 20% which resulted 2,07 cm in length, 0,33 g in weight. The statistical test result showed that the treatment under the dose of 30% and 20% was not significantly different (P>0,05). Base on this study, it can be concluded that abalone is the proper natural food that supports the rearing of banggai cardinal fish with optimum dose of 20 % of fish weight per day. Keywords: Banggai cardinal fish, Natural Feed, Lini Aquaculture Training Center.

MORFOMETRI DAN KEMATANGAN GONAD BELUT LAUT (Macrotema caligans) DI PANTAI SANUR Ni Made Sekarmini; Ni Luh Watiniasih; I Wayan Kasa
Metamorfosa: Journal of Biological Sciences Vol 3 No 2 (2016)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24843/metamorfosa.2016.v03.i02.p05

The purpose of this study was to determine the effect of habitat on the morphometric and gonadal development and to know the range of index values ??gonad maturity sea eel (Macrotema caligans). The results showed that habitat mainly the population of seagrass is related to morphometry sea eel. At five sites studied showed an average size morphometry highest in the sea eel living in Semawang Beach, which is the average size body length of 24.96 ± 0.95 cm. This study also shows morphometry females sea eel larger than males. Gonadal development of eel female is formed through the five stages. The first stage, characterized by underdeveloped oogonia, the second stage, a massive increase gonads up to three times the original size. The third stage, lipid vacuoles are formed inside the egg with an increase in cell volume. The fourth stage, marked by the maturation of oocytes and the fifth stage, oocytes undergo atresi. Values ??range of gonad maturation index sea eel (Macrotema calligans) on the entire study was 0.16% to 9.75%.

EFFECT OF ENVIRONMENTAL DEGRADATION ON ANIMAL DIVERSITY IN BALI, INDONESSIA I Wayan Kasa
Metamorfosa: Journal of Biological Sciences Vol 2 No 2 (2015)
Publisher : Prodi Magister Ilmu Biologi, Fakultas MIPA, Universitas Udayana

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Bali is a small beautiful tropical island of Indonesia archipelago, lies between the continent of Asia and Australia, as well as the Indian and Pacific Ocean. As a tropical archipelago, many kinds of biodiversity can be found. The island of Bali in particular, there are typical animal diversity that could not be investigated beyond such island, such as, Bali cattle, Bali dog, Bali starling and others. As time goes on, the existance of such biodiversity decreases in both body weight and population number. Both global warming/climate change and land use change are the main factors affecting such phenomenon. This study has been conducted by employing field observation as well as literature study. It was found that, the quality of purebred Bali cattle species decreases genetically that could be notified of smaller bodysize for both male and female. Land use change of agriculture activity to the hotels, house of living, roads and other infrastructures are the main factors for Bali cattle existence. For typical famous bird of Balistarling, the problem is because of deforestation which cause natural habitat loss, due to land use change for agricultural activity and house building by local people. In case of Bali dog, the mad dog of rabies is just introduce and spreading over Bali island, whichis formerly the island of Bali has been recognised as free zone area of the rabies. As consequence, suffering dogs must be eliminated by mass killing cause decrease total number of such poor dog. Overall, it could be concluded that environmental degradations of land use change, deforestation and desease are the main causes of biodiversity decreasing number of the Bali cattle, Bali white starling and Bali dog respectively, beside global warming/climate change natural disaster. Key words: Environment, Bali cattle, Bali starling, Bali dog, Bali island.

Efforts In Conserving Purebred Bali Cattle As Draught And Beef Type In Bali Island, Indonesia. (UPAYA PELESTARIAN SAPI BALI SEBAGAI TABUNGAN DAN TIPE PEDAGING DI PULAU BALI INDONESIA) I Wayan Kasa; Anak Agung Sagung Sukmaningsih; Ida Bagus Darmayasa
Buletin Veteriner Udayana Vol. 7 No. 1 Pebruari 2015
Publisher : The Faculty of Veterinary Medicine, Udayana University

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Bali cattle (Bos javanicus d’Alton) is a part of the complex evolution of all cattle over a longtime in Indonesia. Little is known of the origin of bali cattle in Southeast Asia. The geographicaldistribution of Bos (Bibos) types of cattle suggests that the centre of domestication was Indo-China and Malaysia, then spreading to Bali. Due to such several unique characters of bali cattle, someefforts have been conducting with main purpose to conserve purebred, draught as well as meat typecattle on Bali in particular and Indonesia in general. Method has been employed in this study areliterature explore, visiting, interview with questionnaire sheet. Set of efforts have been conductingin order to conserve purebred bali cattle by the government. For examples, establishment of balicattle Breeding centre of Pulukan village, establishment of bali cattle Breeding centre of Sobanganvillage, establishment of bali cattle Conservation centre of Nusa Penida Island, essense of UdayanaUniversity, Bali and role of Department of Animal Husbandry. It could be concluded thatgovernment as a whole have played an important role in conserving the purebred bali cattle asdraught and meat type cattle at certain suitable places in Bali to fulfill local and national daily meatrequirement by establishing good collaboration with related government agency as well as farmers.

PENGARUH STEROID ANABOLIK METHANDIENONE TERHADAP KUANTITAS SPERMATOZOA TIKUS PUTIH (Rattus norvegicus) Nurul Marfu'ah; I Wayan Kasa; Sagung Chandra Yowani
Jurnal Biologi Udayana Vol 18 No 1 (2014): Jurnal Biologi
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Penelitian ini bertujuan untuk mengetahui pengaruh steroid anabolik methandienone terhadap kuantitas spermatozoa tikus putih (Rattus norvegicus). Pemeriksaan kuantitas spermatozoa dilakukan pada testis dan epididimis kauda. Testis dibuat sebagai sediaan preparat dengan metode parafin dan pewarnaan Hematoxylin-Eosin kemudian dilakukan penghitungan jumlah spermatogonia, spermatosit, dan spermatid. Penghitungan jumlah spermatozoa epididimis kauda dilakukan berdasarkan prosedur WHO dalam Syamrizal (1995). Hasil penelitian menunjukkan bahwa rerata kuantitas spermatozoa antara kelompok kontrol dan kelompok perlakuan secara statistik tidak berbeda nyata (P>0,05). Meskipun demikian, rerata kuantitas spermatozoa menunjukkan kecenderungan menurun. Hal ini ditunjukkan oleh rerata jumlah spermatogonia yang mengalami kecenderungan menurun pada dosis 6 dan 12 mg/kg bb. Rerata jumlah spermatosit antar kelompok perlakuan juga menunjukkan kecenderungan menurun. Begitu pula rerata jumlah spermatid dan spermatozoa juga menunjukkan kecenderungan menurun.

TOKSISITY OF DETERGENT AND ARTIFICIAL TEXTIL COLOR TO WATER STRIDER (Gerris marginatus) I K. Putra Juliantara; Ni Luh Watiniasih; I Wayan Kasa
Jurnal Biologi Udayana Vol 19 No 1 (2015): JURNAL BIOLOGI
Publisher : Program Studi Biologi, Fakultas Matematika dan Ilmu Pengetahuan Alam, Universitas Udayana

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Kualitas perairan tawar dapat dipengaruhi oleh masuknya polutan, misalnya detergen dan pewarna kain sintetis, sehingga berpengaruh terhadap kelangsungan hidup organisme air seperti serangga akuatik (anggang-anggang). Tujuan dari penelitian ini adalah untuk mengetahui toksisitas detergen dan pewarna kain sintetis terhadap angganganggang.Penelitian ini terdiri dari dua faktor, yaitu detergen dan pewarna kain sintetis. Faktor detergen terdiri dari empat konsentrasi yaitu konsentrasi 0, 3, 6 dan 9 ppm, demikian juga dengan pewarna kain sintetis terdiri dari empat konsentrasi yaitu konsentrasi 0, 15, 30 dan 45 ppm. Penelitian ini menggunakan rancangan perlakuan faktorial 4x4 dan rancangan percobaan RAK (Rancangan Acak Kelompok). Hasil penelitian menunjukkan bahwa detergen berpengaruh negatif terhadap daya tahan hidup anggang-anggang dalam waktu 24 jam (P<0,05), demikian juga pengaruh pewarna kain sistesis (P<0,05). Akan tetapi, tidak ada pengaruhinteraksi dari detergen dan pewarna kain sintetis terhadap kematian anggang-anggang (P>0,05). Selain itu, ukuran tubuh memberikan pengaruh yang nyata terhadap waktu kematian anggang-anggang (P<0,05). Dari hasil penelitian dapat disimpulkan bahwa detergen dan pewarna kain sintetis meningkatkan jumlah kematian anggang-anggang dalam 24 jam, namun tidak ada efek interaksi antar kedua perlakuan.

PEMANFAATAN SEDIMEN PERAIRAN TERCEMAR SEBAGAI BAHAN LUMPUR AKTIF DALAM PENGOLAHAN LIMBAH CAIR INDUSTRI TAHU Ni Luh Gede Sudaryati; I Wayan Kasa; I Wayan Budiarsa Suyasa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 3 No 1
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Tofu industries are food industries which use a lot of water, both for operational system and as a basic material for production.Tofu industries produce liquid sewage which contains high organic subtances. Liquid sewage of tofu industries is one of the sources ofcontaminants, so that it is needed to have an appropriate waste processing. In order to overcome liquid sewage problem, a wasteprocessing is to reduce and eliminate dangerous materials and pathogenic microorganisms. Biological treatment is the commonest way inhandling the liquid waste from food industries. One of the biological processing that can reduce the contaminants content in liquidindustrial sewage is activated sludge. This activated sludge can also metabolize and break up the contaminants in the sewage and thisprocessing uses sludge.This research was carried out in order to know the growth rate of microbe biomass in activated sludge from 3 types of sludgetaken from the ditches of the tofu industries, the sludge taken from Pesanggaran Slaughterhouse and the sludge taken from Badung Riverwhich were composed into 4 compositions and then were seeded, than tested to get 4 sludge composition in order to reduce COD in tofuindustrial sewage. The parameters used were physical and chemical views. This research was done by measuring the changes in VSSvalue of the four sludge compositions which were seeded and the COD of the four tested sludge compositions.This research used factorial Randomized Completed sampling that consisting of 2 factors and three repetitions, that is the firstfactor was composition sludge and the second one ws incubation period and then were analyzed by using descriptive comprative analysisand uni –variant analysis.The result of this research shown that the best sludge composition used as activated sludge was the sludge composition takenfrom the ditches of tofu industries was 50 %, the sludge taken from Pesanggaran Slaughterhouse was 25% and the sludge taken fromBadung River was 25 % with had VSS of micobe biomass growth of 2265 mg/L and was able to reduce COD of tofu industrial liquidsewage up to 46.645 mg/L.

STUDI PENANGKAPAN IKAN KEMBUNG (Rastrelliger kanagurta) DENGAN MENGGUNAKAN DATA SATELIT DI LAUT JAWA PADA MUSIM TENGGARA DAN BARAT LAUT Bardiyanto -; I Wayan Kasa
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 5 No 1
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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caught and consumed by local community. Monsoon is the main factor governing the characteristics of the Java Sea. This research location is in Java Sea. Chlorophyll-a and SST data will be obtained from Aqua-Modis Satellite. Wind data is `from QuikScat Satellite. Sea surface height data is from Jason 1 Satellite. Fishery data will be taken from the Fishing Port of Dadap (West Java) and Pekalongan (Central Java). Pattern of fish catching season will be analyzed using time series technique with ratio to moving average method. Effort optimum and MSY will be taken with Surplus production models by Schaefer (1957). The Total Allowed Catch is 80% x MSY. Wind direction during northwest monsoon flows southeastward and during southeast monsoon flows northwestward. Generally, wind speed and chlorophyll-a in Java Sea during southeast monsoon is relatively higher compare with it during northwest monsoon. Generally, SST and SSH in Java Sea during southeast monsoon is relatively lower compare with it during northwest monsoon. Correlation between chlorophyll-a and SST is inversely correlated with correlation coefficient - 0.578. Correlation value between wind speed and SST is -0.728. SST and SSH correlation is 0.78.During northwest monsoon, low potential area was bigger than potential area. This is cause by chlorophyll-a and low wind speed, SSH and high SST. Therefore, fish production becomes few. Potential area was located in western part of Java Sea. Meanwhile in southeast monsoon, mainly high potential area were in Bawean Island, Masalembo Island and Kangean Island. And potential area was over the Java Sea. This is cause by chlorophyll-a and high wind speed, SSH and low SST. This is indicating upwelling. So, fish production during southeast monsoon was bigger than during northwest monsoon. This match-up value between fishing ground GIS and fishing ground by fisherman is 80.2%. Catching season index shown that the increase of Indian Mackerel abundance is occurring in April and the maximum number is in July and Augustus. This is caused by the highest chlorophyll-a concentration (0.42 mg/m³) and a low SST (27-28ºC), so create a high primary productivity. This environment condition will support fish spawning. Optimum effort value is 345 vessel/month. And TAC value is 437.808 kg/month. The number of fishing vessel since 2002 increased to 2007, over optimum effort. Meanwhile, the fish production is over TAC until the end of 2004. Then it decreased under TAC to 2007. This indicates that fish catching of Indian Mackerel in Java Sea is classified over fishing. Correlation value between Indian Mackerel fish catch to ENSO in Java Sea is 0.127. This is indication of ENSO phenomena did not influence fish catching. F calculates is 6.513 with significant level 0.005. This means, chlorophyll-a and SST are together influence fish catching of Indian Mackerel in Java Sea. And correlation between fish catching with SST and chlorophyll-a is 0.57.

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