Batu, Djamar Tumpal Floranthus Lumban
Institut Pertanian Bogor

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Uji Toksisitas Letal Cr6+ Terhadap Ikan Nila (Oreochromis niloticus) Tyas, Nanik Mustikaning; Batu, Djamar Tumpal Floranthus Lumban; Affandi, Ridwan
Jurnal Ilmu Pertanian Indonesia Vol 21, No 2 (2016): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (440.806 KB) | DOI: 10.18343/jipi.21.2.128

Abstract

Chromium is a risk pollutant through their carcinogenic character non degradable by organisms and accumulate into the environment. The aims to find LC50-96h of chromium on test organism. The test organism used are Oreochromis niloticus, these organisms may represent the actual condition of the environment. This study was divided into 2 steps i.e. basic and lethal toxicity (LC50-96 h) tests, being run in triplicates. Lethal toxicity test data were probity analyzed. The result showed that LC50-96h of Cr6+ on Oreochromis niloticus was 61.2 ppm.
Kebiasaan Makan dan Luas Relung Ikan-Ikan Indigenous yang Ditemukan di Waduk Penjalin Kabupaten Brebes, Jawa Tengah Elinah, .; Batu, Djamar Tumpal Floranthus Lumban; Ernawati, Yunizar
Jurnal Ilmu Pertanian Indonesia Vol 21, No 2 (2016): Jurnal Ilmu Pertanian Indonesia
Publisher : Institut Pertanian Bogor

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (802.465 KB) | DOI: 10.18343/jipi.21.2.98

Abstract

Knowledge about food habits it is need to see how fish utilize their resources. The objective of this study was to assess feeding habits and niches breath fish species indigenous at Penjalin reservoir. This study was conducted during three months from Maret-Mei 2015. Location of the study were divided into 4 stations and sampling was conducted using gill nets. Feeding habits analysis used of the index of preponderance whereas calculation the niche breath using the method of Levins Measure. In general, the niches breath of indigenous fish in the Penjalin reservoir ranged between 0.71-3.92. The result showed that uceng (Nemacheilus fasciatus), benteur (Puntius binotatus), and wader padi (Rasbora lateristriata) classified as more freely of other indigenous fish species, because it is able to utilize several different resources as a main food. Selective trait shown by (Dermogenys pusilla) because only use one kind of natural food with a high percentage.