Abdullah A. Muhammadar
Department Of Aquaculture, Faculty Of Marine And Fisheries, Universitas Syiah Kuala, Banda Aceh, Indonesia

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Journal : Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan

Application of pumpkin flour to the diet of Barramundi Lates calcarifer fingerling Riska Z. Yanti; Zainal A. Muchlisin; Abdullah A. Muhammadar; Nur Fadli
Depik Vol 11, No 2 (2022): August 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.2.26859

Abstract

Barramundi Lates calcarifer is a high economic value fish in Indonesia and Southeast Asia countries. However, the aquaculture system still experiences problems, including the high cost of production, specifically from feed, which is due to its relatively slow growth and low digestibility. Therefore, this study aims to determine alternative ingredients that can be used in the fish diet to improve feed utilization and growth performance using pumpkin flour Cucurbita moschata. A completely randomized design (CRD) with 6 treatments and 3 replications was adopted in this study. The tested diet was (A) diet without pumpkin flour (control), (B) with 5% (C) 10% (D) 15% (E) 20%, and (F) 25%. The size of the Barramundi samples was 3-4 cm on average and the body weight was 1-3 g at the stocking density of 15 fish/container. The fish fed as much as 10% body weight daily, which is divided into 2 times, namely 08.00 AM and 4.00 PM for 60 days. The results showed that the addition of pumpkin flour had a significant effect on weight gain, daily and specific growth rate, survival, feed efficiency, conversion ratio, and carcass protein (P0.05). The diet with 5% pumpkin flour gave the best results over other treatments, with an average weight gain of 0.761 g, feed conversion of 1.578, feed efficiency of 63.455%, and a daily and specific growth rate of 0.012 g and 0.738%, respectively, The highest carcass protein content was found in the control treatment with a value of 18.210%, which was not significantly different from the 5% pumpkin flour treatment. Therefore, it is concluded that pumpkin flour can be added to the Barramundi diet as much as 5%. Keywords: Barramundi, Snapper, pumpkin, feed utilization
Determine the fishing season of scad (Decapterus sp.) landed at Pusong Fish Landing Base, Lhokseumawe, Indonesia Alvi Rahmah; Salsadira Dwi Zani; Makwiyah A Chaliluddin; A A Muhammadar; Sayyid Afdhal El Rahimi
Depik Vol 11, No 1 (2022): April 2022
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.11.1.24739

Abstract

The scad (Decapterus sp.) is one species commonly caught using purse seine and landed at the Pusong Fish Landing Base, Lhokseumawe, Aceh. The fishermen at this site do not have accurate knowledge about the fishing season of the scad, which leads them to miss out on peak fish catching season and increases the ambiguity about the fish landing data. The goal of this research is to compute the trend of Catch Per Unit Effort (CPUE) for scad fisheries over the last five years (2013-2017) and to examine the fishing season trends of scad landed at Pusong fish landing base. This study took place at the Pusong Fish Landing Base in August 2020. The moving average approach was used to process catch data from 2013 to 2017. Primary and secondary data about scad production and number of fishing trips were used to compile the research findings. The results showed that the CPUE for purse seine catch landed at Pusong Fish Landing Base varies from year to year. The highest CPUE value was recorded in 2015 with 442,534 kg/trip, and the lowest was in 2013 with a value of 27,674 kg/trip. The fishing season index for Scad (Decapterus sp.) has a high rating, indicating that this fish species can be caught all year. Based on the fishing season identification criteria, the fishing season index value greater than 100% indicates the peak season. Results from this research indicate that the peak season for scad landed at Pusong Fish Landing Base occurs in July, August, September, October, and November, with their index values of 151%, 146%, 119%, 122%, and 126% respectively. A fishing season index score of less than 100% indicates low season, this was recorded for January, February, March, April, May, June, and December (48%, 97%, 57%, 90%, 62%, 86% and 97%).Keywords:ScadFishing Season IndexCPUE
Studi kelimpahan fingerling ikan terhadap ketersediaan pakan alami di perairan Danau Laut Tawar Abdullah A. Muhammadar; Junaidi M. Affan; Amiruddin A. Bakar
Depik Vol 7, No 3 (2018): December 2018
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.7.3.12603

Abstract

Abstract. This research was conducted onJuly 2018 in Lake Laut Tawar, Aceh Tengah District.This study aims to determine the abundance of fingerling fish and the availability of natural feed found in Lake Laut Tawar. The gillnet was used to sample the fingerling fish at three stations, including station 1 (One-one), station 2 (Toweren) and station 3 (Rawe) forweek. The parameters of measured water quality are at temperature, pH, DO (dissovlet oxygen), depth, and brightness. Sampling of natural feed (plankton extraction) was carried out at the place of fish collection, then prepared a standard plankton, and identified using microscopy. The results showed the highest abundance of fingerling fish obtained was thekeperas fish (Cyclocheilichthys apogon), with an abundance of 75%. While the lowest abundance value is kawan fish species (Poropontius bargensis), with 4% abundance value, and the highest plankton abundance in Lake Laut Tawar waters is at station 2 with an abundance value of 69.2485 ind / mL and the lowest abundance value is at 1 with an abundance value of 38.0637 ind / mL. Based on the results of the research conducted, it can be concluded that the abundance of fingerling fish is related to the availability of natural food in the waters of Lake Laut Tawar.Keywords: Abundance;Fingerling fish;Natural food;Lake laut tawar. Abstrak. Telah dilakukan penelitianpada Juli 2018tentang studi kelimpahan fingerling ikan terhadap ketersediaan pakan alami di perairan Danau Laut Tawar. Penelitian ini bertujuan untuk mengetahui kelimpahan fingerling fishdan ketersediaan pakan alami yang terdapat di perairan Danau Laut Tawar. Tahapan penelitian ini dimulai dari persiapan alat tangkap, penangkapan fingerlingikan pengukuran kualitas perairan,dan pengambilansampel pakan alami (pengambilan plankton). Alat tangkap yang digunakan ialah jaring joran (Gill net)dengan ukuran 1 inchi. Penangkapan  fingerling fishdilakukan pada tigastasiun, diantaranya stasiun 1(One-one),stasiun 2(Toweren)dan stasiun 3 (Rawe) dan pengambilan sampel dilakukan satu kali dalam satu minggu.Parameter kualitas perairanyang diukur ialah pada suhu, pH, oksigen terlarut, kedalaman, dan kecerahan.Pengambilansampel pakan alami (pengambilan plankton)dilakukan ditempat pengambilan ikan, kemudian menyiapkan plankton standard, dan diidentifikasi dengan mengunnakanmikroskop. Hasil penelitian menunjukkan kelimpahan tertinggi fingerling ikan yang didapatkan ialah jenis ikan Keperas (Cyclocheilichthys apogon),dengan nilai kelimpahan 75 %. Sedangkan nilai kelimpahan yang terendah ialah jenis ikan Kawan (Poropontius tawarensis),dengan nilai kelimpahan 4  %, dan kelimpahan plankton tertinggi pada perairan Danau Laut Tawar terdapat pada stasiun 2 dengan nilai kelimpahan 69,2485 ind/mL dan nilai kelimpahan yang terendah terdapat pada stasiun 1 dengan nilai kelimpahan 38,0637 ind/mL. Berdasarkan hasil penelitian yang telah dilakukan dapat disimpulkan bahwa kelimpahan fingerling fishberkaitan denganketersediaan pakan alami di perairan Danau Laut Tawar.Kata kunci:Kelimpahan;fingerling fish;Pakan alami;Danau laut tawar.