Abstract
The research aims to analyze several biological aspects of the squeezed fish in Batutegi Lampung Reservoir. The study used an experimental method of capture used net capture tool with mesh-size 1.5-2.5 inches. Sample fish measured their total length, weighed in weight, and examined their stomachs to determine what type of food they had. We researched in February, August, and November 2017. The example of keperas fish caught amounted to 415 individuals. Analysis of long-weight relationships showed that February and August were allometrically negative, while November allometric was positive. The condition factor is worth one at each station and month. The eating habits of squeezed fish are plants 50%, fish 15%, insects 10%, worms 9%, phytoplankton 8%, and zooplankton 8%. The growth pattern of fish squeeze in November is isometric and allometric positive due to the development of gonads. The food habits of fish keperas are omnivorous, with the composition according to food availability in the environment.
Highlights
The research aims to analyze several biological aspects of the squeezed fish in Batutegi Lampung Reservoir
The study used an experimental method of capture used net capture tool with mesh-size 1.5-2.5 inches
Sample fish measured their total length, weighed in weight, and examined their stomachs to determine what type of food they had
Summary
Tempat dan Waktu Penelitian dilakukan pada Februari, Agustus dan Nopember 2017. Stasiun pengambilan contoh ditentukan sebanyak enam stasiun dengan pendekatan tujuan tertentu (purposive sampling) yaitu untuk mendapatkan data-data aspek biologi pada habitat mikro yang berbeda (Gambar 1). Peta lokasi penelitian di perairan Waduk Batutegi Provinsi Lampung. Bahan dan Alat Pengambilan contoh ikan keperas dilakukan dengan mengambil hasil tangkapan nelayan menggunakan alat tangkap jaring insang dengan ukuran panjang 10 meter, meshsize 1,5-2,5". Hasil tangkapan dihitung jumlah individu (ekor), diukur panjangnya menggunakan papan ukur dengan ketelitian 1 mm dan ditimbang beratnya menggunakan timbangan digital dengan ketelitian 0,1 gram. Semua contoh jenis hasil tangkapan diawetkan dengan formalin 10% untuk diidentifikasi di laboratorium Balai Riset Perikanan Perairan Umum dan Penyuluhan Perikanan berdasarkan buku Kottelat (1993)
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