Abstract
This research was conducted to analyze: (1) the composition of Pengilar’s catches on the Sebangau River (2) the parameters of Tapah fish stocks, including size structures and long weight relationship (3) the effectiveness of Pengilar (Pot Trap) fishing gear used in the Sebangau River. This research was conducted in Sebangau River, Sebangau Sub-district, Palangka Raya City, and Limnology Laboratory of Fisheries Department of Palangka Raya University. Based on the research results can be concluded: The composition of fish species caught by using Pengilar (pot trap) fishing gear in Sebangau River during the study of 105 heads consisting of 6 species of fish that is Wallago leeri, Kryptopterus bicirrhis, Anabas testudineus, Mystus nemurus, Pristolepis fasciata, and Helostoma temminckii. It is assumed that the structure of the Wallago leeri from observation frequency and theoretical frequencies tend to consist of only one age group (cohort). Wallago leeri fish has a constant b with a value of W = 2.789 SL and average of 0.958. The value of b indicates that the Wallago leeri fish in the Sebangau River belong to negative allometrics or long increments faster than weight gain, indicating the state of the skinny fish. Lc25% with length of 46,76 cm, Lc75% with length 63.65 cm, and L50% with length of 55,21 cm.
Highlights
This research was conducted to analyze: (1) the composition of Pengilar’s catches on the Sebangau River (2) the parameters of Tapah fish stocks, including size structures and long weight relationship (3) the effectiveness of Pengilar (Pot Trap) fishing gear used in the Sebangau River
Berdasarkan tabel 10, komposisi jenis ikan hasil tangkapan Pengilar paling banyak tertangkap selama penelitian adalah ikan Tapah (W. leerii) sebesar 97 ekor (92.4%) dari jumlah total individu, ikan lais (K. limpok) sebesar 2 ekor (1.9%), ikan tambakan (Helostoma temminckii) sebesar 2 ekor (1.9%), ikan patung (Pristolepis fasciata) sebesar 1 ekor (1.0%), ikan betok (Anabas testudineus) sebesar 1 ekor (1.0%), dan ikan baung (Mystus nemurus) sebesar 2 ekor (1.9%)
Komposisi jenis ikan berdasarkan berat atau bobot, memperlihatkan bahwa komposisi terbesar diberikan ikan Tapah (W. leerii) seberat 149.6 kg (96.1%), Ikan tambakan (Helostoma temminckii) seberat 3.0 kg (1.9%), ikan baung (Mystus nemurus) seberat 2.3 kg (1.5%), ikan patung (Pristolepis fasciata) seberat 0.1 kg (0.1%), ikan betok (Anabas testudineus) seberat 0.1 kg (0.1%)
Summary
Taman Nasional Sebangau merupakan salah satu kawasan pelestarian rawa gambut terbesar di Indonesia yang mempunyai fungsi pokok sesuai undangundang no. tahun 1990 tentang konservasi sumberdaya alam hayati dan ekosistemnya yang meliputi: a) Perlindungan sistem penyangga kehidupan; b) Pengawetan keanekaragaman tumbuhan dan satwa beserta ekosistemnya; dan c) Pemanfaatan secara lestari sumberdaya alam hayati dan ekosistemnya (BTNS, 2014)
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