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All Journal e-Journal BUDIDAYA PERAIRAN JURNAL PERIKANAN DAN KELAUTAN TROPIS
Nego Elvis Bataragoa
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Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Decision Sciences, Operations Research & Management Environmental Science

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Pertumbuhan lobster air tawar Cherax quadricarinatus (Von Martens, 1868) yang diberi pakan Keong Tutut Jawa Filopaludina javanica (Von Dem Busch, 1844) Erwin Wiradita Mamonto; Winda Mercedes Mingkid; Revol D. Monijung; Henneke Pangkey; Nego Elvis Bataragoa
e-Journal BUDIDAYA PERAIRAN Vol. 11 No. 1 (2023)
Publisher : Universitas Sam Ratulangi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35800/bdp.11.1.2023.42566

Abstract

The research was carried out to investigate the best amount of large freshwater snail (Filopaludina javanica) meat as feed for the growth and survivals (SR) of freshwater lobster C. quadricarinatus.  The size of freshwater lobster used in this study was 1.70 – 23.90 gr.  Lobsters were kept in aquariums measuring 30 x 30 x 40 cm for 30 days. The experimental design used was a completely randomized design (CRD) with three treatments and three replications that is A (4%), B (7%) and C (10%) of feed. Data analysis was used linier regression. The results showed the (R2) marks close to 1 means that the time of experiment effects the growth of lobster in all treatments, 4% feed (R2 =0,8919), 7% (R2=0,9942) and 10%(R2=0,9484, where the highest coefficient regression was treatment B (0,5818) followed by treatment A (0,4625) and C (0,42), respectively.  The highest survival rate was found in treatment B (91.7%), treatment A (75%) and C (66.7%), respectively.  Results of analysis showed that the size and the length of time of experiment effects the time of growth and survival.
Weight-Length and Condition Factor of Snakehead Fish Channa striata (Bloch, 1793) from Tondano Lake North Sulawesi Musa Amanpokptis; John L. Tombokan; Nego Elvis Bataragoa; Fransine B. Manginsela
JURNAL PERIKANAN DAN KELAUTAN TROPIS Vol. 10 No. 1 (2021)
Publisher : Sam Ratulangi University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1094.423 KB) | DOI: 10.35800/jpkt.10.1.2019.25070

Abstract

Sampling was done in two places, Tolour village and Kaweng village. Samples were taken from fishermen in July and August 2018. Total samples collected were 35 individuals, 20 indivduals from Tolour and 15 from Kaweng. Furthermore, the fish were brought the Faculty of Fisheries and Marine Science, and data recording was in the Freshwater Bioecology Laboratory. They consisted of 16 males and 19 females. Male length ranged from 25.8 to 43.2 cm, and female from 22.0 to 39.6 cm. The weight of males ranged from 157-755 g and female between 38-422g.Weight-length relationship in this study was W = 0.0017L3.4517 for sex combination, W = 0.0116L2.9161 for males and W = 0.0009L3,6426 for females. The growth pattern for combied sex was isometric (b = 3.457). The growth pattern was isometric (b = 2.9161) for male and allometric positive (b = 3.6426) for females. The relative condition factor (Kn) of all individuals was 1.06 ± 0.44, 1.01 ± 0.13 for males and 1.01 ± 0.58 for femaleKey Words: Tondano Lake, Snakehead Fish, Weight-length, condition factor ABSTRAKPengambilan sampel dilakukan di dua tempat yaitu, Kelurahan Tolour Kecamatan Tondano Timur dan Desa Kaweng Kecamatan  Kakas. Sampel diambil dari hasil tangkapan nelayan pada Bulan Juli dan  Agustus 2018. Sampel yang terkumpul  sebanyak 35 ekor, 20 sampel dari Tolour dan 15 dari Kaweng. Selanjutnya ikan dibawah ke Laboraturium Bioekologi Air Tawar  FPIK untuk pengambilan data. Sampel yang digunakan sebanyak 35 individu yang terdiri atas jenis kelamin jantan 16 individu dan betina 19 individu. Ukuran panjang ikan jantan berkisar antara 25,8-43,2 cm, dan ikan betina berkisar antara 22,0-39,6 cm.  Ukuran berat ikan jantan berkisar antara 157-755 g dan ikan betina beratnya berkisar antara 38-422g. Hubungan panjang berat ikan gabus dalam penelitian ini adalah W= 0,0017L3,4517 untuk gabungan jantan betina, W = 0,0116L2,9161 untuk jenis kelamin jantan  dan W = 0,0009L3,6426 untuk jenis kelamin betina.  Pola pertumbuhan untuk gabungan jantan dan betina adalah isometric (b=3,457).  Pola pertumbuhan ikan gabus adalah pola pertumbuhan isometrik (b=2,9161)   untuk jantan dan allometrik positif (b=3,6426) untuk jenis kelamin betina. Faktor kondisi relative (Kn) seluruh individu adalah 1,06  ± 0,44. Faktor Kondisi  jantan adalah 1,01 ± 0,13. Jenis kelamin betina faktor kondisi adalah 1,01 ± 0,58.Kata kunci: Tondano, ikan gabus, berat-panjag, factor kondisi
Co-Authors Erwin Wiradita Mamonto Fransine B. Manginsela Henneke Pangkey John L. Tombokan Musa Amanpokptis Revol D. Monijung Winda Mercedes Mingkid