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INDONESIA
Ecotrophic, Journal of Environmental Science
Published by Universitas Udayana
ISSN : 19075626     EISSN : -     DOI : -
Core Subject : Social,
Environmental Science
Ecotrophic, Journal of Environmental Science (ISSN : 1907-5626) atau yang disingkat EJES, merupakan media publikasi bagi hasil-hasil penelitian, artikel dan resensi buku dibidang ilmu lingkungan. EJES adalah peer-reviewed dan open access jurnal, diterbitkan dua kali setahun yaitu bulan Mei dan September oleh Program Studi Ilmu Lingkungan, Program Pascasarjana Universitas Udayana.
Arjuna Subject : -
Articles 12 Documents
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Search results for , issue "Vol 7 No 1 (2012)" : 12 Documents clear
ANALISIS LINGKUNGAN PERAIRAN UNTUK ZONA PENGEMBANGAN BUDIDAYA LAUT DI TELUK GERUPUK KABUPATEN LOMBOK TENGAH AGUS MULIADI PUTRA; I.W. Budiarsa Suyasa; M.S. Mahendra
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 7 No 1 (2012)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

This research aims to identify the water suitability and carrying capacity level based on marine culture activity used. The research treated on May to July 2011 at Gerupuk Bay, Subdistrict of Pujut, Central Lombok Regency. The methods used in this research are analyzing the parameter, processing the data, and analyzing the data based spatial named Geographic Information System (GIS). This analysis proves that Gerupuk Bay might be used as marine culture development area with total area 339,768 Ha. Highly suitable area with 60,343 Ha, is for seaweeds area. For grouper fish most of the area is marginally suitable area with 99,198 Ha, for moderately suitable is 68,105 Ha and for unsuitable area found is 112,122 Ha. After identifying the data, the total maximum carrying capacity area for seaweeds activity is 8 units for long line which 7 units (87,5%) have been used, and 18 units for floating raft method which 10 units (55,5%) have been used. The maximum total unit for the grouper fish is 26 units for net floating cages method whlch only 1 unit (4%) has been used. Finally, the conclusion of U1is research is that the water environmental for each marine culture activity is less then 50% of all area. For lhe estimation of the maximum carrying capacity of grouper fish is less then 50%, in other hand the maximum carrying capacity of seaweeds is up to 50%.
STUDY OF POTENTIAL FISHING GROUND FOR SKIPJACK TUNA (Katsuwonus pelamis) in SAWU SEA EAST NUSA TENGGARA PROVINCE USING REMOTE SENSING SATELLITE AND FISHERY DATA IRMA YULIA MADJID; Takahiro Osawa; I Wayan Arthana
ECOTROPHIC : Jurnal Ilmu Lingkungan (Journal of Environmental Science) Vol 7 No 1 (2012)
Publisher : Master Program of Environmental Science, Postgraduate Program of Udayana University

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Abstract

Indonesia's marine waters contain natural resources, especially biological resources, such as fish abundant and diverse. Skipjack tuna is one of the pelagic fish that have a high commercial value and eao be found in the sea water of the eastern part of Indonesia, especially in the sea waler of Kupang, East Nusa Tenggara Province. This study employed the average composite data of Sea Surface Temperature, Chlorophyll-a and Photosyntetically Active Radiation (PAR) are got from Aqua MODJS satellite in 2006, and wind speed data from Quickscat satellite. Vertieally Generalized Production Model (VGPM) was proposed by Behrenfeld and Falkowski (1997) was used to estimate the Primary Production (PP). The Fish Production was estimated using the formula wa.???? proposed by Pauly and Christensen (1995). Fish Production in-situ data were provided by Ministry of Ma,ine and Fisheries East N\lsa Tenggara Province in 2006 that was 4,685.75 ton/year. Potential fishing zone for Skipjack Tuna (Katsuwonus pe/amis) was divided in Lo Southeast, Transition II, and Northwest monsoon. At Northwest monsoon was low potential fishing ground. The good fishing zone was observed in western part of Sawu Sea. The Estimation of higher fish catching estimated during Southeast and Transition II monsoon. The results of Primary Production (PP) showed the same patterns with Chlorophyll-a. The estiination of fish production in Sawu Sea was 6,563.08 ton/year. With comparing between fish production estimation and fish production from Ministry of Marine and Fisheris data showed the utilization rate was 71.39 % in Sawu Sea. The correlation between SST and fish catching was low (-0.25) and the correlation between Chlorophyll-a and fish catching in Sawu Sea was low (0.12). The correlation between Chlorophyll-a and SST in Sawu Sea showed inversely relationships (correlation coefficient of -0.24 and has a different and opposite patterns). The correlation between Primary Production (PP) and Chlorophyll-a showed close relationships of 0.98 (R=o.98).

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