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Ni Komang Suryati

Balai Penelitian Perikanan Perairan Umum

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KERAGAMAN JENIS IKAN DAN KEBIASAAN MAKAN DI MUARA SUNGAI MUSI Eko Prianto; Ni Komang Suryati; Muhammad Mukhlis Kamal
BAWAL Widya Riset Perikanan Tangkap Vol 4, No 1 (2012): (April 2012)
Publisher : Pusat Riset Perikanan, BRSDM KP.

Populasi ikan di suatu perairan berkaitan erat dengan keragaman jenis dan makanan yang tersedia. Penelitian ini bertujuan untuk mengetahui komposisi jenis dan kelimpahan sumberdaya ikan berdasarkan kebiasaan makannya di muara Sungai Musi Sumatera Selatan. Pengambilan sampel dengan menggunakan pukat hela dan belad dilakukan pada bulan Maret dan Juni 2008 masing-masing pada 4 stasiun pengambilan contoh yang mewakili perairan muara Sungai Musi. Hasil penelitian diperoleh sebanyak 34 jenis ikan di bagian tepi sungai dan 63 jenis di bagian tengah sungai. Ditinjau dari kebiasaan makan pada bulan Maret untuk ikan yang berada di tepi sungai diperoleh kelimpahan ikan herbivora paling tinggi (49 %) dan terendah ikan yang bersifat omnivora (1 %). Pada bulan Juni kelimpahan ikan carnivora paling tinggi (50 %) dan terendah ikan omnivora (1 %). Untuk jenis ikan yang berada di tengah sungai, kelimpahan ikan yang tertinggi pada bulan Maret yaitu ikan herbivora (87 %) dan terendah ikan omnivora (2 %). Pada bulan Juni kelimpahan yang tertinggi yaitu ikan carnivora (57 %) dan terendah ikan omnivora (0,2 %). Fish populations in the waters is closely related to species diversity and food available. The objective of this study is to determine of species composition and abundance of fish resources based on feeding habit in the estuarin water of Musi river. Sample was taken from 4 fishing stations by using trawl and towing net (belad) in March and June 2008. The results showed that there were 34 species of fish in the riverside and 63 species of fish in the middle stream. Analysis of feeding habit in March for the fishes in found riverside showed that herbivorous fish was highest 49% of total catch and the lowest was omnivorous fish (1%). While in June the carnivorous fish was highest (50%) and the lowest was omnivorous fish (1%). In the middlestream the highest abundance in March was herbivorous fish (87%) and the lowest (57%) was omnivorous fish (2%). In June, the highest abundance of fish was carnivores and the lowest was omnivorous fish (0.2%).

BIOLOGI REPRODUKSI IKAN SUMPIT (Toxotes microlepis Gunther 1860) DI PERAIRAN SUNGAI MUSI SUMATERA SELATAN Ni Komang Suryati; Safran Makmur; Syarifa Nurdawati
BAWAL Widya Riset Perikanan Tangkap Vol 6, No 3 (2014): (Desember 2014)
Publisher : Pusat Riset Perikanan, BRSDM KP.

Kegiatan penangkapan ikan sumpit sebagai ikan hias secara terus menerus di SungaiMusi oleh para nelayan akan mengakibatkan penurunan populasi ikan tersebut. Ikan sumpit termasuk ikan yang bernilai ekonomis tinggi, harganya di pasaran Rp 150.000,-. Oleh karena itu perlu dilakukan penelitian untuk mengetahui aspek biologi reproduksi ikan sumpit sebagai salah satu informasi untuk mendukung pelestarian ikan sumpit agar populasi ikan sumpit tetap terjaga. Penelitian dilakukan pada setiap bulan sejak Juni hingga Oktober 2011. Pengambilan sampel Ikan sumpit dilaksanakan di Perairan Sungai Musi dari Borang sampai Sungsang. Hasil penelitianmenunjukkan rasio kelamin antara ikan jantan dan ikan betina terjadi ketidakseimbangan dimana rasio kelamin ikan jantan jauh lebih banyak dibandingkan rasio kelamin ikan betina (2:1). Rata-rata nilai Indeks Gonad Somatik ikan sumpit berkisar antara 4,27±1,27. Nilai dari fekunditas ikan sumpit betina secara keseluruhan berkisar 6.655-72.726 butir/individu. Kisaran diameter telurnya antara 0,27 – 0,95 mm. Ukuran pertama kali matang gonad pada panjang total 134,97 mm untuk ikan jantan dan 116,31 mm untuk ikan betina.Fishing activity of archer fish as ornamental fish continuously in Musiriver by fisher will decrease it population. The price is Rp 150.000,-/fish in market so that Archer fish has high economy value. Therefore it was necessary to study the reproductive biology of archerfish that may be used as a reference for better management in order to achieve stability of its population. The research was conducted every month from June to October 2011 in downstream ofMusiriver South Sumatera. Result of this research showed that proportion between male and female were not equal (2:1). Gonad Somatic Index of archer fish values ranged 4,27 ± 1,27 and the fecundity of the female is estimated between 6655 to 72726 eggs. The average diameter of mature egss ranged form 0.27 to 0.95 mm. Length of first maturity for male and female were 134.97 mm and 116.31 mm, respectivelly.

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