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Sintasan dan pertumbuhan cacing Polychaeta Nereis sp. dari kawasan pertambakan Desa Jeruklegi Cilacap dengan salinitas media pemeliharaan dan jenis pakan berbeda Eko Setio Wibowo; Endah Sri Palupi; I G A Ayu Ratna Puspitasari; Atang Atang
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Polychaeta Nereis sp. is one of the natural foods that can trigger the maturation of shrimp gamete cells up to 70%, but the fulfillment of Nereis sp. still rely on the arrest from nature. This condition encourages the cultivation of Nereis sp., but knowledge of the biological aspects of Nereis sp. still very lacking, so it needs further research. This study aims to determine the survival and growth of Nereis sp. from Cilacap Jeruklegi area with different salinity and feed as basic information for the cultivation of Nereis sp. sustainable. The study was conducted experimentally with a randomized block design (RBD) method with six treatments including: S5PN (maintenance of Nereis sp. with 5 ppt salinity and feed with the main content of vegetable protein), S5PH (maintenance with salinity of 5 ppt and feed with the main content of animal protein), S15PN (maintenance of Nereis sp. With 15 ppt salinity and feed with the main content of vegetable protein), S15PH (maintenance with 15 ppt salinity and feed with the main content of animal protein), S25PN (maintenance of Nereis sp. With 25 ppt salinity and feed with main content of vegetable protein), S25PH (maintenance with 25 ppt salinity and feed with the main content of animal protein). The results showed that optimum salinity to support the survival of Nereis sp. It ranges from 5-15 ppt with animal and vegetable protein feed types. Nereis sp. Optimum growth. in the maintenance of 15 ppt salinity with animal protein feed types.Keywords: Nereis sp., Body weight, number of segments, Salinity, Feed Abstrak. Polychaeta Nereis sp. merupakan salah satu pakan alami yang mampu memicu pematangan sel gamet udang sampai 70%, tetapi pemenuhan kebutuhan Nereis sp. masih mengandalkan penangkapan dari alam. Kondisi ini mendorong adanya usaha budidaya Nereis sp., namun pengetahuan tentang aspek biologi Nereis sp. masih sangat kurang sehingga perlu penelitian lebih lanjut. Penelitian ini bertujuan mengetahui sintasan dan pertumbuhan Nereis sp. dari kawasan Jeruklegi Cilacap dengan salinitas pemeliharaan dan pakan yang berbeda sebagai informasi dasar untuk usaha pembudidayaan Nereis sp. yang berkelanjutan. Penelitian dilakukan secara eksperimental dengan metode rancangan acak kelompok (RAK) dengan enam perlakuan meliputi: S5PN (pemeliharaan Nereis sp. dengan salinitas 5 ppt dan pakan dengan kandungan utama protein nabati), S5PH (pemeliharaan dengan salinitas 5 ppt dan pakan dengan kandungan utama protein hewani), S15PN (pemeliharaan Nereis sp. dengan salinitas 15 ppt dan pakan dengan kandungan utama protein nabati), S15PH (pemeliharaan dengan salinitas 15 ppt dan pakan dengan kandungan utama protein hewani), S25PN (pemeliharaan Nereis sp. dengan salinitas 25 ppt dan pakan dengan kandungan utama protein nabati), S25PH (pemeliharaan dengan dengan salinitas 25 ppt dan pakan dengan kandungan utama protein hewani). Hasil penelitian menunjukkan bahwa salinitas optimum untuk mendukung sintasan Nereis sp. Berkisar 5-15 ppt dengan jenis pakan berprotein hewani dan nabati. Pertumbuhan optimum Nereis sp. pada pemeliharaan salinitas 15 ppt dengan jenis pakan berprotein hewani.Kata Kunci: Nereis sp., berat tubuh, jumlah segmen, salinitas, pakan

Ratio of coral reefs to macroalgae: An ecosystem approach management Aditiyawan Ahmad; Achmad Fahrudin; Mennofatria Boer; Yusli Wardiatno; Mohammad Mukhlis Kamal
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. The decline in the quality of coral reef ecosystems is not only caused by human activities but also caused by competition in ecosystems, including competition for space and nutrients. Research on the comparison of coral reefs with macroalgae is one of the determinants of coral reef health which is the basis for the management of coral reefs with an ecosystem approach. The purpose of this study was to analyze the comparison of coral reef cover with macroalgae. The research method used is Line Intercept Transect (LIT), the research location is 13 stations divided into 3 locations, namely north, centre, and south from Ternate Island in North Maluku. The results showed that the condition of coral reefs ranged from 24 – 86.60%, based on the condition categories of 13 observation locations, the coral reefs of Ternate Island were in very good condition at 15.38%, good conditions at 46.16%, adequate conditions at 30.77%, and damaged conditions 7.69%, while the condition of macroalgae cover ranged from 0 - 30.60% in the area of coral reef ecosystems. The ratio of the of coral reefs to algae ranges from 0 to 1.117, based on the ratio value, it is classified as low, medium to high, spread in the coral reef ecosystem of Ternate Island. Coral reef management strategies on Ternate Island include a continuous monitoring program for coral reef ecosystems, education on coral reef ecosystems, creating a conscious community of waste, and limiting the capture and restoking of herbivorous fish in coral reef areas.Keywords: Coral reef, ecosystem approach management, macroalgae, Ternate Island

Keragaman jenis ikan di Sungai Maro pada musim peralihan I Sisca Elviana; Modesta Ranny Maturbongs; Sunarni Sunarni; Chair Rani; Andi Iqbal Burhanuddin
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. The river is one of aquatic resource that is rich in organisms, including various types of fish. Maro River has characteristics of a river that has a wide area of estuary area makes it a fishing area by local fishermen.This study aims to determine the structure of fish communities caught on the Maro River in the transition season I.This research was conducted in April - May 2018 on the Maro River in Merauke Regency.Determination of research stations was chosen based on differences in environmental conditions on the Maro River.Data analysis using ecological index: composition of fish species (P), frequency of occurrence (Fi), species diversity (H '), type uniformity (E) and dominance (D).The results obtained by the composition of fish species found as many as 18 species, of which the species most commonly found in station I were 13 species while the lowest was found in station II as many as 3 species.The highest frequency of acquisition is Kurtus gulliveri which is 100%. The highest percentage of attendance was obtained from the same species at 43%.The poverty index during the first transition season was 2,104, included in the criteria of moderate and medium community.The uniformity index of 0.455 is included in the low uniformity category, meaning that the spread of each type in the community is relatively even.The dominance index value during the first transition season is 0.221, indicating that no type dominates.the ecological index value obtained shows even distribution of fish and no one dominates.Overall the condition of the aquatic environment on the Maro River is still in a good and balanced environment.Keywords: Diversity, the first transition period of monsoon, Maro Rivers Abstrak. Sungai merupakan salah satu perairan yang kaya akan organisme didalamnya. Sungai Maro merupakan salah satu sungai yang ada di Kabupaten Merauke. Penelitian ini bertujuan untuk mengetahui struktur komunitas ikan yang tertangkap di Sungai Maro pada musim peralihan I. Penelitian ini dilaksanakan pada bulan April – Mei 2018 di Sungai Maro Kabupaten Merauke. Penentuan stasiun penelitian dipilih berdasarkan perbedaan kondisi lingkungan di Sungai Maro. Analisis data menggunakan indeks ekologi: komposisi jenis ikan (P), frekuensi keterdapatan (Fi), keanekargaman jenis (H’), keseragaman jenis (E) dan dominansi (D). Hasil penelitian diperoleh 13 jenis. Dari hasil penelitian, komposisi jenis ditemukan sebanyak 18, dimana jenis species yang paling banyak ditemukan pada stasiun 1 sebanyak 13 spesies sedangkan stasiun II ditemukan species paling sedikit yaitu sebanyak 3 species. Frekuensi keterdapatan yang paling tinggi yaitu species Kurtus gulliveri memiliki frekuensi keterdapatan yang paling tinggi yaitu 100%. Presentase kehadiran tertinggi diperoleh adalah jenis ikan kaca (Kurtus gulliveri) sebesar 43%. Indeks keanekargaman selama musim peralihan I sebesar 2,104, termasuk dalam kriteria sedang dan komunitas sedang. Indeks keseragaman sebesar 0,455 termasuk dalam kategori keseragaman rendah, artinya penyebaran individu setiap jenis didalam komunitasnya relatif merata. Indeks dominansi selama musim peralihan I sebesar 0,221, menunjukkan tidak ada jenis yang mendominasi. Indeks keanekaragmannya sedang, dengan indeks dominansi dan indeks keseragamannya rendah menandakan distribusi ikan yang merata dan tidak ada yang mendominasi. Secara keseluruhan kondisi lingkungan perairan pada Sungai Maro masih dalam lingkungan yang baik dan seimbang.Kata Kunci: Struktur komunitas, musim peralihan I, Sungai Maro

The dynamics of target fishes resources in coral reef fisheries at coastal area of Ternate Island Faizal Rumagia; Mennofatria Boer; Rahmat Kurnia; Mohammad Mukhlis Kamal
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. As one of the coastal ecosystem, coral reef ecosystem is a magnificent marine ecosystem, where their species richness and composition play an important role for the ability of coral reef ecosystem to respond to the fishing activity and other stressors, where fishing has impacted the fish community, target or non-target reef fish species. The dynamic of reef fish resources, especially the target species, become one of the aspects that must be considered in the management and utilization of the fisheries resources in the coral reef ecosystem and their surrounding area. The purpose of the study was to analyze the dynamics of the target fish in the coral reef fishing activity at the coastal area of Ternate Island, from the growth, mortality and exploitation ratio aspect. The research was conduct from April to August 2018 in the coastal area of Ternate Island. The data sampling was growth parameters data through length and weight measurement. Total sample measure along the research time was 6245 sample (consist of seven family and 11 species). The result shows that the target fish have asymptotic length (L∞) range from 263.16–483.16 mm, with growth coefficient (K) ranging from 0.61–0.92 per year. The theoretic age at length 0 (t0) ranges from minus 0.0825–0.1669 year (equal to 30-61 day). The fishing mortality rate (F) is lower than the natural mortality rate (M), which resulting the exploitation rate (E) for the target fish mostly under 50%, which indicated that the utilization of the reef fishes in the coastal area of Ternate Island is still under-exploited.Keywords: Exploitation rate, Growth parameters, Length-weight relationship, Mortality rate, Stock assessment

Penanganan penyakit white feces pada udang vaname Litopenaeus vannamei menggunakan aplikasi pakan yang dicampur ekstrak lengkuas merah Alpinia purpurata k. schum Juliana Marbun; Esti Harpeni; Wardiyanto Wardiyanto
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. The main problem in vaname shrimp Litopenaeus vannamei culture is a disease. One of the diseases that can infect vaname shrimp is White Feces Disease (WFD) caused by bacteria Vibrio sp. The Treatment can be done by using Red galangal Rhizome extract. Since MBC testing result galangal extract can be a treat of Vibrio sp bacteria. This research used the completely randomized design (RAL) with five treatments and three replications which treatment A (negative control), B (positive control), C (7.5 grams), D (10 grams) and (12.5 grams) which are mixed with pellet for treating White Feces Disease in vaname shrimp. The result shows that red galangal rhizome extracted give effect to SR (Survival Rate), RPS (Relative Percent Survival), TVC (Total Vibrio Count), but it didn’t give effect to clinical indication and histopathology.Keywords: vaname shrimp, white feces disease, extract red galangal Rhizome Abstrak. Permasalahan utama dalam budidaya udang vaname (Litopenaeus vannamei) adalah penyakit, salah satu penyakit yang dapat menyerang udang vaname yaitu White Feces Disease (WFD) yang disebabkan bakteri Vibrio sp. Upaya pengobatan yang dapat dilakukan untuk menangani penyakit tersebut adalah dengan pengobatan menggunakan ekstrak rimpang lengkuas merah dikarenakan ekstrak lengkuas telah diuji secara MBC dapat mematikan bakteri Vibrio sp. Penelitian ini bertujuan untuk menguji ekstrak rimpang lengkuas merah dengan dosis berbeda yang dicampur dengan pakan buatan untuk mengobati penyakit white feces disease pada udang vaname (Litopenaeus vannamei). Penelitian ini menggunakan Rancangan Acak Lengkap (RAL) dengan lima perlakuan, tiga ulangan dimana perlakuan A (kontrol negatif), perlakuan B (kontrol positif), perlakuan C (7,5 g), perlakuan D (10 g) dan perlakuan E (12,5 g). Hasil penelitian menunjukan bahwa ekstrak rimpang lengkuas merah berpengaruh terhadap SR, RPS (Relative Percent Survival) dan TVC (Total Vibrio Count), namun tidak berpengaruh terhadap gejala klinis dan histopatalogi. Kata Kunci: udang vaname, white feces disease, ekstrak rimpang lengkuas merah

Hubungan panjang-berat ikan monacanthus cinensis dan acreichthys tomentosus di Pulau Fair, Tual, Maluku Tenggara Bayu Kumayanjati; Teddy Triandiza; Agus Kusnadi
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Length-weight relationship analysis is used to determined the pattern of the growth for the fish. Based on this knowledge, field study have been done at the Fair island waters, the district of Tual, in April, June and August 2014, to collect data length and weight of Monacanthus cinensis and Acreichtys tomentosus. The length of the fish is measured using a digital caliper with an accuracy of 0.01 mm and weighed using an analytical balance precision balance ACS - AD 300 with an accuracy of 0.01 g. The number of fish samples analyzed were 288 for M. cinensis and 270 for A. tomentosus, respectively. Based on the analysis of length-weight relationship and condition factor, M.cinensis and A.tomentosus have the same growth pattern, i.e., negative allometric, with b values 2.505 and 2.3195 (b 3), respectively.Value of condition factor were 1.083 - 3.379 for M. cinensis and 1.003 - 4.106 for A. tomentosus, both fish were included in the category of fish that have a slightly flattened body.Keywords: Monacanthus cinensis, Acreichthys tomentosus, length-weight relationship, growth pattern, Fair Island Abstrak. Analisa hubungan panjang berat ikan merupakan analisa untuk mengetahui pola pertumbuhan ikan. Adapun penelitian ini dilakukan pada ikan Monacanthus cinensis dan Acreichthys tomentosus pada bulan April, Juni dan Agustus 2014 di perairan Pulau Fair, Tual, Maluku Tenggara. Ikan hasil tangkapan diukur panjangnya menggunakan digital caliper dengan ketelitian 0,01 mm, dan beratnya menggunakan timbangan analitik ACS precision balance-AD 300 dengan ketelitian 0,01 g. Jumlah ikan sampel yang dianalisa masing-masing sebanyak 288 ekor untuk M. cinensis dan 270 ekor untuk A. tomentosus. Berdasarkan analisa hubungan panjang berat dan faktor kondisi, M. cinensis dan A. tomentosus memiliki pola pertumbuhan yang sama yaitu alometrik negatif dengan nilai b masing-masing sebesar 2,505 dan 2,3195 (b3). Nilai faktor kondisi (Kr) untuk kedua jenis ikan tersebut masing-masing berkisar antara 1,083 – 3,379 untuk ikan M. cinensis dan 1,003 – 4,106 untuk A. tomentosus, keduanya termasuk dalam kelompok ikan yang memiliki bentuk badan yang agak pipih.Kata Kunci: Monacanthus cinensis, Acreichthys tomentosus, hubungan panjang berat, pola pertumbuhan, Pulau Fair

Induksi pemijahan ikan wader pari (Rasbora argyrotaenia) menggunakan Ovaprim TM dengan dosis berbeda Dwi Retna Kumala Ningrum; Darmawan Setia Budi; Laksmi Sulmartiwi
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Silver rasbora (Rasbora argyrotaenia) has become one of the freshwater culture commodities that have high economic value. Research on the use of Ovaprim™ to the induction of spawning of silver rasbora needs to be done as an effort to develop the technology of fish hatchery. This study aims to determine the effect of using Ovaprim™ and its optimal dosage on the induction of silver rasbora spawning. This research was conducted at the Wet Laboratory Airlangga University Banyuwangi campus in March to May 2018. Ovaprim ™ was applicated using intramuscular injection method following the treatment design was used a Completely Randomized Design (CRD) with 4 treatments and 5 replications namely P0: Without Ovaprim ™ (control); P1: dose of 0,3 mL /kg fish weight; P2: dose of 0,5 mL/kg fish weight; P3: dose of 0,7 mL/kg weight of fish. The parameters observed in this study were fecundity, egg diameter, fertilization rate, hatching rate and larval survival rate. Induction of silver rasbora spawning using Ovaprim ™ has an effect on fecundity and fertilization rate but has no effect on hatching rate, survival rate and egg diameter. The optimal dose of Ovaprim ™ on the induction of spawning of silver rasbora is 0,7 mL/kg weight of fish with the highest fecundity value compared to other treatments.Keywords: fecundity, egg diameter, hatching rate, survival rate Abstrak. Ikan wader pari (Rasbora argyrotaenia) telah menjadi salah satu komoditas budidaya air tawar yang memiliki nilai ekonomis tinggi. Penelitian mengenai penggunaan Ovaprim™ dalam induksi pemijahan ikan wader pari perlu dilakukan sebagai upaya pengembangan teknologi pembenihan ikan tersebut. Penelitian ini bertujuan untuk mengetahui pengaruh penggunaan Ovaprim™ dan menentukan dosis optimalnya pada induksi pemijahan ikan wader pari. Penelitian ini dilakukan di Laboratorium Basah PSDKU Universitas Airlangga Banyuwangi pada bulan Maret sampai Mei 2018. Aplikasi Ovaprim™ menggunakan metode injeksi intramuskular mengikuti desain perlakuan menggunakan Rancangan Acak Lengkap (RAL) dengan 4 perlakuan dan 5 ulangan yaitu P0 : Tanpa pemberian Ovaprim™ (kontrol), P1 : dosis 0,3 mL/kg bobot ikan, P2 : dosis 0,5 mL/kg bobot ikan, P3 : dosis 0,7 mL/kg bobot ikan. Parameter yang diamati dalam penelitian ini adalah fekunditas, diameter telur, derajat fertilisasi, derajat penetasan telur dan tingkat kelangsungan hidup larva. Induksi pemijahan ikan wader pari menggunakan Ovaprim™ memberikan pengaruh terhadap fekunditas dan derajat fertilisasi namun tidak memiliki pengaruh terhadap derajat penetasan telur, tingkat kelangsungan dan diameter telur. Dosis optimal Ovaprim™ pada induksi pemijahan ikan wader pari yaitu 0,7 mL/ kg bobot ikan dengan nilai fekunditas tertinggi dibanding perlakuan lainnya. Kata kunci: fekunditas, diameter telur, derajat penetasan telur, tingkat kelangsungan hidup

Struktur ekosistem lamun di Desa Teluk Bakau, pesisir bintan timur-Indonesia Aditya Hikmat Nugraha; Endang S Srimariana; Indra Jaya; Mujizat Kawaroe
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. Teluk Bakau Village is one of the largest conservation areas of seagrass ecosystem located in Bintan Island. This research aim to study the distribution of species, seagrass coverage and seagrass density in Teluk Bakau Village. The research was conducted at two stations, Beralas Pasir Island and Teluk Bakau Village Beach. Seagrass data collections are computed using transect quadrat method. The results of this study show that there is total 8 species of seagrasses found in the conservation area of seagrass ecosystem in Teluk Bakau, namelu Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Cymodocea serulata, Halophila ovalis, Halophila minor, Syringodium isoetifolium and Halodule uninervis. The highest seagrass cover value was found at Beralas Pasir Island station about 47%, while in Teluk Bakau Village Beach station the seagrass coverage value was arround 29%. Based on these coverage value, the seagrass ecosystem in Teluk Bakau area fall in the category of medium conditon. The excistence of seagrass ecosystem in Teluk Bakau village is utilized by the community in small scale fisheries activity, therefore it is utmost important that its biodiversity and level of coverage are maintaned or even improved.Keywords: Bintan, conservation, coverage, seagrass, teluk bakau Abstrak. Desa Teluk Bakau merupakan salah satu kawasan konservasi ekosistem padang lamun yang terletak di Pulau Bintan. Penelitian ini bertujuan untuk mengkaji sebaran spesies, tutupan dan kerapatan lamun di Desa Teluk Bakau. Metode pengamatan ekosistem padang lamun dengan menggunakan metode transek kuadrat. Penelitian dilakukan di dua stasiun yaitu Pantai Timur Teluk Bakau dan Pulau Beralas Pasir. Hasil dari penelitian ini menunjukan bahwa total terdapat 8 spesies lamun yang ditemukan di kawasan konservasi ekosistem padang lamun di Teluk Bakau, meliputi spesies Enhalus acoroides, Thalassia hemprichii, Cymodocea rotundata, Cymodocea serulata, Halophila ovalis, Halophila minor, Syringodium isoetifolium dan Halodule uninervis. Nilai tutupan lamun tertinggi ditemukan di stasiun Pulau Beralas Pasir sebesar 47% dan stasiun Pantai Desa Teluk Bakau memiliki nilai tutupan lamun sebesar 29%. Berdasarkan nilai tutupannya ekosistem padang lamun di kawasan Teluk Bakau berada dalam kondisi sedang. Keberadaan ekosistem lamun di Desa Teluk Bakau dimanfaatkan oleh masyarakat dalam aktivitas perikanan skala kecil, sehingga sangat penting untuk menjaga keberagaman dan nilai tutupan ekosistem lamun.Kata Kunci: Bintan, konservasi, lamun, Teluk Bakau, tutupan

Lintasan sampah mikro plastik di kawasan konservasi perairan Nasional Laut Sawu, Nusa Tenggara Timur Noir P Purba; Widodo S Pranowo; Sahat M. Simanjuntak; Ibnu Faizal; Haifa H. Jasmin; Dannisa I.W. Handyman; Putri G Mulyani
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Abstract. At present, marine debris is an important issue in Indonesia. Due to the complex pattern of ocean currents, research on the distribution of marine waste in Indonesia is still very lacking. This study aims to determine the movement of microplastic particles at the Savu Sea National Marine Park. The method used was to simulate the hydrodynamic model and particle trajectory. Data used were wind, tides, bathymetry, coastline, weight of garbage, and garbage fluxes. Analysis was carried out on physical data visualization, hydrodynamic models, and particle trajectory models. The hydrodynamic model simulation shows if the average current velocity ranges from 0,0002 m/s to 0.35 m/s. The particle trajectory showed that microplastic particle movements tend to move to the south, where some of them move west and east of the Savu Sea. Besides being affected by tides, microplastic particle movements in the Savu Sea National Marine Park are also influenced by various currents that pass through the Savu Sea waters, especially by Indonesia Troughflow.Keywords: ocean model, particle pathways, microdebris, Savu Seas, Indonesia Troughflow Abstrak. Saat ini, sampah laut merupakan salah satu isu kemaritiman di Indonesia. Karena pola pergerakan arus yang kompleks, penelitian mengenai distribusi sampah laut di Indonesia masih sangat kurang. Taman Laut Nasional Laut Sawu sebagai wilayah yang dilalui Arlindo juga memiliki karakteristik oseanografi yang kompleks. Penelitian ini bertujuan untuk mengetahui hasil simulasi pergerakan partikel sampah di Taman Nasional Perairan (TNP) Laut Sawu. Metode yang digunakan yaitu simulasi model hidrodinamika dan lintasan partikel. Data yang digunakan yaitu angin, pasang surut, batimetri, garis pantai, berat sampah, dan flux sampah. Analisis dilakukan terhadap visualisasi data fisik, model hidrodinamika, dan model pergerakan partikel. Simulasi model hidrodinamika menunjukkan jika rata-rata kecepatan arus berkisar antara 0,0002 m/s hingga 0,35 m/s. Hasil simulasi menunjukkan jika pergerakan partikel mikroplastik cenderung bergerak ke selatan, dimana sebagian bergerak ke arah barat dan timur Laut Sawu. Selain dipengaruhi pasang surut, pergerakan partikel mikroplastik di Taman Laut Nasional Laut Sawu juga dipengaruhi oleh berbagai arus yang melewati perairan Laut Sawu khususnya Arlindo.Kata kunci: pemodelan, lintasan partikel, sampah mikro, Laut Sawu, Arlindo.

Hubungan panjang-berat ikan monacanthus cinensis dan acreichthys tomentosus di Pulau Fair, Tual, Maluku Tenggara Bayu Kumayanjati; Teddy Triandiza; Agus Kusnadi
Depik Vol 8, No 2 (2019): August 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.8.2.10629

Abstract. Length-weight relationship analysis is used to determined the pattern of the growth for the fish. Based on this knowledge, field study have been done at the Fair island waters, the district of Tual, in April, June and August 2014, to collect data length and weight of Monacanthus cinensis and Acreichtys tomentosus. The length of the fish is measured using a digital caliper with an accuracy of 0.01 mm and weighed using an analytical balance precision balance ACS - AD 300 with an accuracy of 0.01 g. The number of fish samples analyzed were 288 for M. cinensis and 270 for A. tomentosus, respectively. Based on the analysis of length-weight relationship and condition factor, M.cinensis and A.tomentosus have the same growth pattern, i.e., negative allometric, with b values 2.505 and 2.3195 (b 3), respectively.Value of condition factor were 1.083 - 3.379 for M. cinensis and 1.003 - 4.106 for A. tomentosus, both fish were included in the category of fish that have a slightly flattened body.Keywords: Monacanthus cinensis, Acreichthys tomentosus, length-weight relationship, growth pattern, Fair Island Abstrak. Analisa hubungan panjang berat ikan merupakan analisa untuk mengetahui pola pertumbuhan ikan. Adapun penelitian ini dilakukan pada ikan Monacanthus cinensis dan Acreichthys tomentosus pada bulan April, Juni dan Agustus 2014 di perairan Pulau Fair, Tual, Maluku Tenggara. Ikan hasil tangkapan diukur panjangnya menggunakan digital caliper dengan ketelitian 0,01 mm, dan beratnya menggunakan timbangan analitik ACS precision balance-AD 300 dengan ketelitian 0,01 g. Jumlah ikan sampel yang dianalisa masing-masing sebanyak 288 ekor untuk M. cinensis dan 270 ekor untuk A. tomentosus. Berdasarkan analisa hubungan panjang berat dan faktor kondisi, M. cinensis dan A. tomentosus memiliki pola pertumbuhan yang sama yaitu alometrik negatif dengan nilai b masing-masing sebesar 2,505 dan 2,3195 (b3). Nilai faktor kondisi (Kr) untuk kedua jenis ikan tersebut masing-masing berkisar antara 1,083 – 3,379 untuk ikan M. cinensis dan 1,003 – 4,106 untuk A. tomentosus, keduanya termasuk dalam kelompok ikan yang memiliki bentuk badan yang agak pipih.Kata Kunci: Monacanthus cinensis, Acreichthys tomentosus, hubungan panjang berat, pola pertumbuhan, Pulau Fair

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Faculty of Marine and Fisheries Universitas Syiah Kuala Jalan Meureubo No. 1, Kopelma Darussalam Banda Aceh, 23111, Indonesia

Location
Kab. aceh besar,

Aceh

INDONESIA

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Home Page

OAI Link

Editorial Team

Contact

Reviewer

Google Scholar

Contact Name Ichsan Setiawan

Contact Email ichsansetiawan@usk.ac.id

Phone +6285220189228

Journal Mail Official depik@usk.ac.id

Editorial Address Faculty of Marine and Fisheries Universitas Syiah Kuala Jalan Meureubo No. 1, Kopelma Darussalam Banda Aceh, 23111, Indonesia

Location Kab. aceh besar, Aceh INDONESIA

Abstract

Abstract

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Contact Name
Ichsan Setiawan

Contact Email
ichsansetiawan@usk.ac.id

Phone
+6285220189228

Journal Mail Official
depik@usk.ac.id

Editorial Address
Faculty of Marine and Fisheries Universitas Syiah Kuala Jalan Meureubo No. 1, Kopelma Darussalam Banda Aceh, 23111, Indonesia

Location
Kab. aceh besar,

Aceh

INDONESIA