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Molecular identification of sharks and rays species from Aceh waters, Indonesia Mutia Ramadhaniaty; Maria Ulfah; Indra Indra; Nur Fadli; Nanda Muhammad Razi
Depik Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Shark is a cartilaginous fish that is widely hunted because it has high economic value. The waters of Aceh are directly adjacent to the Indian Ocean and the Malacca Strait making it a preferred habitat for pelagic fish, especially sharks. Information on shark species landed in the waters west and east of Aceh is very limited due to difficulties in identification and commonly used local names. This study aimed to determine the types of sharks landed in Banda Aceh, Meulaboh, Langsa, Southwest Aceh and Simeulu and to find out specifically what species of sharks are most often landed in Aceh waters. Primary data gathering consisted of four stages, namely sample collection, identification using identification books, molecular identification cytochrome oxidase subunit I (COI) and phylogenetic analysis. The results of the molecular analysis of 46 tissue samples from five locations identified 13 species of sharks, namely Carcharhinhus sorrah, Carcharhinhus amboinensis, Triaenodon obesus, Isurus oxyrinchus, Sphyrna zygaena, Sphyrna lewini, Loxodon macrorhinus, Hemipristis elongaria, Stagostoma fasciatum, Nebrius ferrugineus, Chilloscyllium punctatum, Isurus oxyrinchus, Alopias pelagicus, Alopias supercillosus and 1 species of rays, namely Rhynchobatus australiae. Phylogenetic tree reconstruction using the Neighbor Joining method of 610 basepairs consisting of two large clades separates the species Alopias pelagicus and Isurus oxyrichus with Carcharhinus sorrah, Sphyrna lewini, Loxodon macrorhinus and Rhyncobatus australiae with boostrap values of 87% and 64%. The haplotype diversity shown ranged from 0.667-0.889 while the nucleotide diversity ranged from 0.001-0.097. These values indicates high diversity because of the variance in the number of species found.Keywords:BarcodeCOISharks catchAlopias supercillosusSphyrna lewini

Critical thermal limit and behavior of the Barramundi (Lates calcarifer Bloch, 1790) fingerling exposure with different temperature Fachrurozi Amir; Firman M. Nur; Nur Fadli; Zainal Abidin Muchlisin
Depik Vol 10, No 1 (2021): April 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Barramundi (Lates calcarifer) is one of the commercial fish in Indonesia. The phenomenon of climate change due to global warming has affected the life of aquatic biota, including fish. The objectives of the present study were to determine a critical thermal maximum (CTMax) and the behavior of Barramundi (L. calcarifer) due to the increase in water temperature. The research was conducted at the Fishing Technology Laboratory, Faculty of Marine and Fisheries, Universitas Syiah Kuala in February 2021. The experiment was conducted in 10 aquariums equipped with heaters. The initial temperature of the treatment was 28oC and increased gradually every one minute by 0.2oC. The results showed that the abnormal behavior of Barramundi fingerling was started to appear at 37oC where the fish began to swim fast, then swim sideways at 38oC-39oC, hit the container wall at 39oC-40oC, jumped and weakened then dead at 40oC and 41oC. The average critical temperature of Barramundi fingerling was recorded at a temperature of 41oC within 65 minutes. Therefore, it is concluded that the Barramundi (L. calcarifer) display an abnormal behavior above the temperature of 35oC, however, they can survive up to 42oC exposure for 70 minutes.Keywords:Critical thermal maximumTemperature riseGlobal warming

Kebiasaan makan dan komposisi makanan tiga species cumi (Loligo edulis, Sepioteuthis lessoniana dan Sepia officinalis) hasil tangkapan nelayan dari Perairan Pantai Utara Provinsi Aceh Taufiq Ismail; Zainal A. Muchlisin; Nur Fadli; Ichsan Setiawan
Depik Vol 2, No 2 (2013): August 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. The objective of the present study was to evaluate the feeding habits of three species of squids i.e. Loligo sp. Sepioteuthis lessoniana dan Sepia officinalis which were caught in the northern sea of Aceh. The sampling was conducted from April to May 2013 in TPI lampulo, Banda Aceh. The results showed that three type of foods were recorded on the Loligo sp. i.e. fish (75.1%), shrimp (20.5%) and squid (4.4%); in the S. officinalis stomach was fish (89.9%), shrimp (10%) and crab (0.29); while inthe S. lessoniana stomach was fish (99.9%) and worm (0.1%). Hence the squids were categorized as carnivorous feeding habit where small fish and shrimp were the primary food for the squids. Keywords: Food; Fish; Shrimp; Carnivorous; Abstrak. Penelitian ini bertujuan untuk mengetahui kebiasaan makan dan komposisi makanan tiga species cumi hasil tangkapan nelayan dari perairan pantai Utara Provinsi Aceh mulai April sampai Mei 2013. Pengambilan sampel dilakukan dengan metode penarikan contoh secara acak sederhana yaitu dengan mengambil sampel secara acak yang mewakili semua ukuran cumi yang ad. Hasil penelitian menunjukkan bahwa jenis makanan yang dijumpai pada lambung Loligo edulis adalah ikan (75,1%), udang (20,5%) dan cumi (4,4%); pada lambung Sepia offisinalis diperoleh jenis makanan; ikan (89,9%), udang (10%) dan kepiting (0,29%;) dan pada Sepioteuthis lessoniana ikan (99,9%) dan cacing (0,1%). Sehingga dengan demikian dapat disimpulkan bahwa ketiga species yang diteliti karnivora dengan ikan-ikan kecil dan udang sebagai makanan utama.Kata kunci: Makanan, Ikan; Udang; Karnivora

Analisis subsidi bahan bakar minyak (BBM) solar bagi nelayan di Kabupaten Aceh Besar, Provinsi Aceh Zainal A. Muchlisin; Nur Fadli; Arifsyah M. Nasution; Rika Astuti Rika Astuti; Marzuki M
Depik Vol 1, No 2 (2012): August 2012
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Fuel is one of important components in fishing activity. The objectives of this research were to analyze the need and the receiver of fuel subsidy in Aceh Besar t as well as to analyze the problems that faced by fisherman in Aceh Besar district. The survey was done on June-August 2012 in five sub-district in Aceh Besar namely: (1) Baitussalam, (2) Mesjid Raya, (3) Leupung (4) Lhoknga dan (5) Mesjid Raya. The result shown that the average cost of one trip of fishing activities in Aceh Besar were Rp700.000. The lowest operational cost was found in Seulimum (Rp96.200 per trip) and the highest was found in Baitussalam sub-district (Rp1, 793,710 per trip). Fuel was the biggest cost for fishing activity; it was ranged 40%-73% with average 57.9%. The lowest proportion of fuel consumption was found in Baitussalam sub-district and the highest was found in Lhoknga sub-district. In average, the fisherman’s fuel consumption was 1,237L. per month; with total subsidy was Rp 5,824,737 per fisherman per month. The profit will be decreased up to 89.5% if there was no fuel subsidy. In addition, the result also shown that the fisherman in Aceh Besar did not have any skill to generate their alternative income. As the consequence, in the future there is a need to develop programs to generate the alternative livelihood for Aceh Besar fisherman as well as their family.Keywords. Capture fishery, conservation, budget allocation, and climate changes

Catatan Penelitian: Persepsi nelayan terhadap kebijakan subsidi perikanan dan konservasi di Kabupaten Aceh Besar, Provinsi Aceh Zainal A. Muchlisin; Nur Fadli; Arifsyah M. Nasution; Rika Astuti
Depik Vol 2, No 1 (2013): April 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. The objective of the present study was to collect information of fishermen perceptions in Aceh Besar district. The study was conducted from June to August 2012, while the field survey conducted on 21 to 28 June 2012 at some fishing villages in Aceh Besar district namely: (a) Baitussalam and Mesjid, (b) Peukan Bada, (c) Leupung, Lhoknga and Lhoong, (d) Pulo Aceh, (e) Seulimum. The Results showed that most of respondents were in the productive age (31-45 years). The majority of the respondents have recieved subsidies from a variety of sources both government and non-governmental organizations. The common type of subsidy were in the form of goods (in kinds) namely: boats, fishing gear and boat engines, and small portion in cash. In addition, the majority of fishermen stated that the type of assistance provided was in accordance with their needs as fishermen and most fishermen are still expected that fisheries subsidies should be continued. In regard to environmental and conservation issues that most fishermen agreed with the conservation area in the district of Aceh Besar. However, most of the respondents stated that they have not been involved in conservation activities. The fishermen need training in fishing technology, post harvest and conservation.Keywords: Habitat degradation, fish, skills and capital

Keragaman makrozoobenthos di perairan Kuala Gigieng Kabupaten Aceh Besar Nur Fadli; Ichsan Setiawan; Nurul Fadhilah
Depik Vol 1, No 1 (2012): April 2012
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. The objective of present study was to study the diversity of macrozoobenthos in Kuala Gigieng estuary, Aceh Besar. The study was conducted in June 2011. The random sampling method was used to determine the area and sampling points based on tidal activities. Samples were taken with the Eckmann grab, then identified at Marine Biological Laboratory of Marine Science Department. The results showed that there were three class of macrozoobenhos (Malacostraca, Gastropoda, and bivalves) within 12 species of makrozoobenthos occured in Kuala Gigieng. The Shannon-Wienner diversity index (H') at high tide, mean sea level, and low tide were 1.26, 1.446, and 1.892, respectively, and it was categorized as low level. Keywords. Diversity, Makcrozoobenthos, Gigieng estuary

Analisis subsidi perikanan non BBM di Kabupaten Aceh Besar, Provinsi Aceh Zainal A. Muchlisin; Nur Fadli; Arifsyah M. Nasution; Rika Astuti; Marzuki Marzuki; Darmawi Musni
Depik Vol 1, No 3 (2012): December 2012
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. The objective of the present study was to analyze the budgetary trends and the effectiveness of fisheries subsidies in Aceh Besar district. The literature and survey methods were utilized in this study. The secondary data of Aceh Besar’s budget documents in the period of 2010-2012 and key person interviews with fishermen leaders were conducted to analysis the subsidy trend and fishermen perception. The data was collected in May through July 2012. The results showed the budget allocation to the fisheries sector were increased from year to year, in 2010 the total budget for the fisheries sector was Rp1, 9 billions (equivalent to 0.34% of total buget or 1.40% of the development budget allocation/indirect consumption), in it was increased to Rp2, 9 billion in 2011 (or 0.42% of total budget or 1.47% of the development budget allocation), then increased sharply in 2012 to Rp9, 2 billion (an increase of over 630%) from the previous year, equivalent to 1.11% of the total budget. In 2010, the proportion of subsidies were given mostly for aquaculture sub-sector, which reached 84% of the total budget that was managed by the Department of Marine and Fisheries of Aceh Besar, whereas in 2011 the proportion of subsidies occurred balance between aquaculture and capture fishery sub sectors. However, in 2012 most of the budget DKP Aceh Besar (63%) was allocated to the capture fishery sub-sector. The results of the study showed that fisheries subsidies by the Government of Aceh Besar district especially in the last two years have not yet met the criteria of sustainable fisheries subsidies. Keywords: fisheries subsidies, budget allocation, and Aceh Besar

Komunitas ikan karang herbivora di perairan Aceh bagian utara Edi Rudi; Nur Fadli
Depik Vol 1, No 1 (2012): April 2012
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.1.1.25

Abstract. Herbivory reef fish is the most important of fish tropic group in the coral reef ecosystem.Hence, the objective of this study was to provide reliable data and information on herbivory reef fish based on management types in the northern Acehnese reef. Underwater Visual Census Techniques was used to collect the data at 20 sites around Weh Island and Aceh Besar. This study found 32 herbivory reef fishes species from five families in northern Acehnese reef. Densities of herbivory reef fish were varied from 27 to 104 ind./transect,while species numbers were also varied from 6 to 14 species/site. Family Acanthuriidae was the highest in species number, i.e. 19 species. Densities of herbivory reef fish in sites that were protected under the management authority of Sabang Weh Island were not significantly higher compare with sites from open access areas. Keywords: herbivory reef fish, coral reef, visual census technique, Aceh

Critical thermal limit and behavior of the Barramundi (Lates calcarifer Bloch, 1790) fingerling exposure with different temperature Fachrurozi Amir; Firman M. Nur; Nur Fadli; Zainal Abidin Muchlisin
Depik Vol 10, No 1 (2021): April 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.1.20287

Barramundi (Lates calcarifer) is one of the commercial fish in Indonesia. The phenomenon of climate change due to global warming has affected the life of aquatic biota, including fish. The objectives of the present study were to determine a critical thermal maximum (CTMax) and the behavior of Barramundi (L. calcarifer) due to the increase in water temperature. The research was conducted at the Fishing Technology Laboratory, Faculty of Marine and Fisheries, Universitas Syiah Kuala in February 2021. The experiment was conducted in 10 aquariums equipped with heaters. The initial temperature of the treatment was 28oC and increased gradually every one minute by 0.2oC. The results showed that the abnormal behavior of Barramundi fingerling was started to appear at 37oC where the fish began to swim fast, then swim sideways at 38oC-39oC, hit the container wall at 39oC-40oC, jumped and weakened then dead at 40oC and 41oC. The average critical temperature of Barramundi fingerling was recorded at a temperature of 41oC within 65 minutes. Therefore, it is concluded that the Barramundi (L. calcarifer) display an abnormal behavior above the temperature of 35oC, however, they can survive up to 42oC exposure for 70 minutes.Keywords:Critical thermal maximumTemperature riseGlobal warming

Kebiasaan makan dan komposisi makanan tiga species cumi (Loligo edulis, Sepioteuthis lessoniana dan Sepia officinalis) hasil tangkapan nelayan dari Perairan Pantai Utara Provinsi Aceh Taufiq Ismail; Zainal A. Muchlisin; Nur Fadli; Ichsan Setiawan
Depik Vol 2, No 2 (2013): August 2013
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.2.2.751

Abstract. The objective of the present study was to evaluate the feeding habits of three species of squids i.e. Loligo sp. Sepioteuthis lessoniana dan Sepia officinalis which were caught in the northern sea of Aceh. The sampling was conducted from April to May 2013 in TPI lampulo, Banda Aceh. The results showed that three type of foods were recorded on the Loligo sp. i.e. fish (75.1%), shrimp (20.5%) and squid (4.4%); in the S. officinalis stomach was fish (89.9%), shrimp (10%) and crab (0.29); while inthe S. lessoniana stomach was fish (99.9%) and worm (0.1%). Hence the squids were categorized as carnivorous feeding habit where small fish and shrimp were the primary food for the squids. Keywords: Food; Fish; Shrimp; Carnivorous; Abstrak. Penelitian ini bertujuan untuk mengetahui kebiasaan makan dan komposisi makanan tiga species cumi hasil tangkapan nelayan dari perairan pantai Utara Provinsi Aceh mulai April sampai Mei 2013. Pengambilan sampel dilakukan dengan metode penarikan contoh secara acak sederhana yaitu dengan mengambil sampel secara acak yang mewakili semua ukuran cumi yang ad. Hasil penelitian menunjukkan bahwa jenis makanan yang dijumpai pada lambung Loligo edulis adalah ikan (75,1%), udang (20,5%) dan cumi (4,4%); pada lambung Sepia offisinalis diperoleh jenis makanan; ikan (89,9%), udang (10%) dan kepiting (0,29%;) dan pada Sepioteuthis lessoniana ikan (99,9%) dan cacing (0,1%). Sehingga dengan demikian dapat disimpulkan bahwa ketiga species yang diteliti karnivora dengan ikan-ikan kecil dan udang sebagai makanan utama.Kata kunci: Makanan, Ikan; Udang; Karnivora

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