Dedi F. Putra
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Inshore migration of tropical glass eels (Anguilla spp.) in Lambeso River, Aceh Jaya District, Aceh Province, Indonesia Zainal A. Muchlisin; Maulidin Maulidin; Abdullah A. Muhammadar; Dedi F. Putra
Aceh Journal of Animal Science Vol 1, No 2: December 2016
Publisher : Syiah Kuala University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (248.86 KB) | DOI: 10.13170/ajas.1.2.5304

Abstract

The objective of the present study was to evaluate the migration time of glass eels (Anguilla spp.)  in the estuary of  Lambeuso River, Aceh Jaya District, Indonesia. The survey was done in March and June 2015.  The sampling location was determined based on an initial survey during February 2015 by considering the river condition. Based on initial survey there are no glass eels were recorded during noon time, and therefore the sampling was focused at night. The sampling was done four times a month (weekly basis) for three months (12 times in total) using trap nets based on Hijri Calendar. The trap was settled up to opposite direction of tide (seaward) from 18.00 PM to 06.00 AM  and the catches glass eels were monitoring one-hour interval.  A total of 131 glass eels were sampled during the study, where the samples were only caught on first (new month) and fourth week (old month) base on Hijri Calender  during spring tide and  no glass eels were sampled during second and third weeks. It was concluded that the migration time of the glass eels (Anguilla spp.) in Lambeso Rivers is during the dark moon at the new and old month of Hijri Calendar
EMBRIOGENESIS DAN INKUBASI TELUR IKAN DEPIK (Rasbora tawarensis) DENGAN SUHU YANG BERBEDA Nanda Safraini; Sayyid A. El-Rahimi; Iwan Hasri; Dedi F. Putra; Siska Mellisa
Jurnal Ilmiah Mahasiswa Kelautan Perikanan Unsyiah Vol 4, No 1 (2019): Februari 2019
Publisher : Universitas Syiah Kuala

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Abstract

ABSTRACT       This study aimed to analyze the effect of temperature on the development of embryogenesis and incubation of depik fish eggs (Rasbora tawarensis). This research was conducted at Lukub Badak-Aceh Tengah in May 2017. This study used a Completely Randomized Design (CRD) with four temperature treatment levels with three replications, namely: A (20 ± 1ºC), B (24 ± 1ºC), C (27 ± 1ºC), D (30 ± 1ºC). Then ANOVA statistical analysis was carried out and continued with the Duncan test. From this study, the development of embryogenesis, hatching time and absorption rate of egg yolk occured faster in the treatment of high temperature D and slower at low temperatures. The highest average value of hatchability of eggs and survival occurred in treatment B and the highest abnormalities occurred in treatment D. Based on the results of the study, the optimum temperature for the development of embryogenesis and incubation of depik fish eggs was at a temperature of 24 ± 1ºC.Keywords: embryogenesis, egg incubation, depik, Rasbora tawarensis ABSTRAK       Penelitian ini bertujuan untuk menganalisis pengaruh suhu terhadap perkembangan embriogenesis dan inkubasi telur ikan depik (Rasbora tawarensis). Penelitian ini dilakukan di Balai Benih Ikan Lukub Badak-Aceh Tengah pada bulan Mei 2017. Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan 4 taraf perlakuan suhu dengan 3 kali ulangan yaitu: A (20±1ºC), B (24±1ºC), C (27±1ºC), D (30±1ºC). Kemudian dilakukan analisa statistic ANOVA dan dilanjutkan dengan uji Duncan. Dari penelitian ini diperoleh perkembangan embriogenesis, waktu penetasan dan laju penyerapan kuning telur terjadi lebih cepat pada perlakuan suhu tinggi D dan lambat pada suhu rendah. Nilai rata-rata tertinggi daya tetas telur dan kelangsungan hidup terjadi pada perlakuan B dan abnormalitas tertinggi terjadi pada perlakuan D. Berdasarkan hasil penelitian didapatkan suhu optimum untuk perkembangan embriogenesis dan inkubasi telur ikan depik adalah pada suhu 24±1ºC.Kata kunci : embriogenesis, inkubasi telur, depik, Rasbora tawarensis