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Depik Jurnal Ilmu-Ilmu Perairan, Pesisir, dan Perikanan
Published by Universitas Syiah Kuala
ISSN : 20897790     EISSN : 25026194     DOI : 10.13170/depik
Core Subject : Science, Education, Engineering,
Earth & Planetary Sciences Education Engineering
Depik Jurnal Ilmu-Ilmu Perairan, Pesisir dan Perikanan is a peer review international journal, this journal is publishing high-quality articles in aquatic sciences and fisheries in general. The aim of the journal is to publish and disseminate the current or new findings of the research, and give a significant contribution to the development of fisheries and aquatic sciences in several topics, but not limited to: Fisheries (Aquaculture, Capture Fisheries, Fish Processing) Aquatic Ecology (Freshwater, Marine, and Brackishwater) Aquatic Biology (Fish, Mollusk, Crustacean, Plankton, Coral reefs) Oceanography.
Arjuna Subject : Ilmu Bumi dan Planet (semua kategori) - Ilmu Bumi dan Planet (Lain-Lain)
Articles 563 Documents
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Aspek biologi dan dinamika populasi ikan tenggiri (Scomberomorus commerson Lacepede 1800) di Perairan Arafura Andina Ramadhan Putri Pane; Siti Mardlijah; Budi Nugraha; Ali Suman
Depik Vol 9, No 1 (2020): April 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.1.15797

Abstract

Abstract. The Arafura waters are rich in fishery resources such as shrimp, demersal fish, pelagic fish, and crustaceans. The Tenggiri fish (Scomberomorus commerson) is the mainstay of pelagic fisheries and is dominant landed in 2 (two) locations in Poumako (Mimika) and Dobo (Aru Islands). The number of samples measured during the study was 2,645 species derived from the waters of Arafura. The production of fisheries increased to be an indication that it is necessary to manage the intensive utilization of fish resources to keep the population. Management requires basic scientific study of biological aspects and population dynamics of Narrow-bareed mackerel. The study was conducted from March to December 2017 in Poumako and Dobo. The 35-130 cmFL fish size structure is dominant at a size of 95 cmFL with negative allometric growth. The length at the first catch is 78 cmFL with a growth rate of (K) = 0.86 per year and an infinitive length (L∞) = 136.5 cmFL. Fish were first to catch at the age of 10 months, and the age reached infinitive (L∞) is 9.5 years old. The recruitment of the fish from August (11.82%) up to October (18.13%) with a peak of September at 23.75%. The fishing mortality (F) is higher than that of natural mortality (M) so that the exploitation rate (F) = 0.67, which indicates that overfishing has occurred in this area. One form of fisheries management that can be done is to limit the fishing season to provide the opportunity of fish to reproduce and recruitment to restore the population.Keywords: Biological aspects, dynamic population, Scomberomorus commerson, Arafura, Poumako, Dobo Abstrak. Perairan Arafura kaya akan sumberdaya perikanan baik udang, ikan demersal, ikan pelagis dan krustasea. Ikan tenggiri (Scomberomorus commerson) menjadi andalan perikanan pelagis dari perairan ini dan dominan didaratkan pada dua lokasi yaitu di Poumako (Mimika) dan Dobo (Kepulauan Aru). Jumlah sampel yang diukur selama penelitian adalah 2.645 ekor ikan tenggiri. Adapun tujuan dari kajian ini untuk perencanaan pengelolaan terhadap pemanfaatan ikan tenggiri yang semakin pasif dieksploitasi sehingga populasinya tetap terjaga. Oleh karena itu pengelolaan ini memerlukan dasar kajian ilmiah berupa aspek biologi dan dinamika populasi ikan tersebut. Penelitian ini dilakukan dari Maret hingga Desember 2017 di Poumako dan Dobo. Hasil analisis distribusi panjang ikan menunjukkan nilai antara 35-130 cmFL, dimana dominan yang tertangkap pada ukuran 95 cmFL dengan pola pertumbuhan allometrik negatif. Ukuran pertama kali ikan tertangkap adalah 78 cmFL dengan laju pertumbuhan (K) = 0,86 per tahun dan panjang infinitif (L∞) = 136,5 cmFL. Ikan pertama kali tertangkap diestimasikan pada usia 10 bulan dan umur saat mencapai panjang infinitif (L∞) adalah 9,5 tahun. Rekruitmen ikan ini diestimasikan berlangsung pada Agustus (11,82%) hingga Oktober (18,13%) dengan puncak rekruitmen terjadi pada bulan September sebesar 23,75%. Nilai kematian akibat penangkapan (F) lebih tinggi dibandingkan dengan kematian alamiah (M) sehingga tingkat pemanfaatannya (F) = 0,67 yang artinya ikan sudah mengalami overfishing. Salah satu bentuk pengelolaan perikanan ikan tenggiri yang dapat dilakukan adalah dengan membatasi musim penangkapan agar memberikan kesempatan ikan melakukan reproduksi dan rekruitmen di perairan sehingga dapat memulihkan populasi.Kata kunci: Aspek biologi, dinamika populasi, Scomberomorus commerson, Arafura, Poumako, Dobo
The abundance of Microcystis sp. on intensive shrimp ponds Soeprapto, Hayati; Ariadi, Heri; Badrudin, Ubad; Soedibya, Petrus H.T
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 1 (2023): APRIL 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.1.30433

Abstract

Microcytis sp is plankton species that is detrimental in shrimp pond ecosystems. The purpose of this study was to detect the abundance of plankton and the presence of Microcystis sp. in the waters of vaname shrimp (L. vannamei) aquaculture ponds. The research method used is descriptive quantitative and qualitative with added analysis of dynamic modeling systems. The results showed that pond water quality conditions were still good enough for shrimp farming activities with details of dissolved oxygen 4.01-6.17 mg/L, pH 7.7-7.9, salinity 20, temperature 27.050-28.250C, nitrate 0.01-0.15 mg/L, phosphate 0.05-0.20 mg/L, brightness 25-35 cm. For the classification of plankton found among them are from the Bacillariophyceae class, there are the genera Skeletonema sp., Cyclotella sp., Coscinodiscus sp., and Amphipora sp., from the Chlorophyceae class, there are the genera Chlorella sp., Oocystis sp., and Clamydomonas sp., from the Cyanophyceae class. the genus Oscillatoria sp., Microcystis sp., and Anabaenopsis sp. The plankton diversity index (H') was obtained between 0.01-0.33 and the uniformity index (E) was obtained between 0.10-0.50, meaning that the condition of the pond waters is still quite good and there are minimal indications of pollution. The abundance of Microcystis sp. obtained between 0.2x104-0.6x104 cell/ml. from the results of dynamic modeling analysis it is shown that the abundance of Microcystis sp. in pond waters is influenced by the value of the productivity level of the waters and the process of grazing organisms. The results of this study can be concluded that the plankton abundance rate found in ponds ranges from 0.4x104-1.9x104 cell/ml which consists of 10 genera and 3 classes of plankton. Then Microcystis sp. its presence was found in 3 ponds with abundance rate ranging from 0.2x104-0.6x104 cell/ml.Keywords:CultivationGenusGrazingModelWaters
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.
Assessing the quality of mangrove ecosystem as breeding sites organisms in the coastal area Ulva, Susi Mulia; Djufri, Djufri; Supriatno, Supriatno; Safrida, Safrida; Huda, Ismul
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 13, No 1 (2024): APRIL 2024
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.13.1.31348

Abstract

Mangrove ecosystem is an ecosystem that supports people's lives and the biota that live in it. Globally, mangrove ecosystems are recognized as productive ecosystems in coastal areas. Mangrove wetlands have an important function of protecting coastal ecology, buffering salinity, breeding grounds for organisms and transporting nutrients. Research on the assessment of the quality of mangrove ecosystems in Syiah Kuala District, Banda Aceh City was carried out with the aim of studying the presence of mangrove species, plankton species, hydrological factors of mangrove ecosystems and analyzing the quality of mangrove ecosystems as breeding grounds for organisms based on hydrological factor values. The method used in this study was the line transect method and the research technique was carried out by means of purposive sampling. Data analysis was calculated using the Shanon-Wiener Species Diversity Index () and PCA (Principal Component Analysis) analysis. Identification results showed a low mangrove species diversity index with a value of = 1.924, a plankton species diversity index of = 2.614 belonging to moderate community stability, a hydrological index covering temperatures ranging from 28.2 to 29.8 C, pH 7.1 -7.4, DO 2.9-4.1 mg/L, salinity 27-20.9 /, brightness 30-68.5 Cd, depth 88.5-105 cm. Water quality parameters are in good condition. PCA analysis showed a correlation between the distribution of mangrove species and parameters of salinity, pH, DO, temperature, depth and brightness.Keywords:MangrovesBreeding SiteHydrologyPlanktonCoastal Area
Kriopreservasi sperma ikan kawan Poropontius tawarensis menggunakan Dimetil sulfoxida (DMSO) Cut Ruhul Muthmainnah; Zainal A. Muchlisin; Kartini Eriani; Iwan Hasri; Nur Fadli; Abdullah A. Muhammadar
Depik Vol 8, No 3 (2019): December 2019
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.8.3.15072

Abstract

Abstract. Kawan fish (Poropuntius tawarensis) is an endemic fish found in Danau Laut Tawar, Central Aceh, Indonesia. This species has been threatened by ecological partubation, unfrindly fishing practices and pollution.  Cryopreservation is one of the ways to maintain the presence of these fish. Cryoprotectant (CP) is a critical material in the cryopreservation and DMSO is a common CP used in cryopreservation. Hence, the aim of the present study was to determine the optimum DMSO concentration for kawan fish sperm. The completely randomized design with 6 treatments and 3 replications were used in this study. The tested treatment was the difference of DMSO concentration, namely; 0, 3%, 6%, 9%; 12%, and 15% DMSO was combined with 5% egg yolk. The ratio of sperm to diluent is 1: 20. The cryotubes containing diluented sperm were evaporated at 5 cm from the surface of liquid nitrogen for 10 min, then stored in a liquid nitrogen container at -1960C for 2 weeks, then thawed and analyzed for the quality. The results showed that fresh sperm of kawan fish had motility of 48.67%, pH 7, milky white, with moderate consistency. The assessment of mass movements shows that the sperm has good quality. The ANOVA test showed that the addition of DMSO in diluents gavee significant effect on sperm motility, fertility and hatchability rates of fish eggs (P 0.05). The highest percentage of sperm motility and fertilization rates of fish eggs were found at concentration of 6%, respectively with the value of 46.67% and 45.67%, respectively. The highest percentage of hatching rate was also found in similar concentration of DMSO with the value of 19.33%. %. The DNA integrity test using the electrophoresis gel method showed that there was damage to DNA fish sperm after freezing, the the lower damage was found at 9% and 12% DMSO. It is concluded that the optimum concentration of DMSO for kawan fish sperm is at 6% of DMSO. Key words: kawan fish (Poropuntius tawarensis), cryopreservation, DMSO, DNA integrity Abstrak. Ikan kawan (Poropuntius tawarensis) merupakan ikan endemik yang terdapat di Danau Laut Tawar, Aceh Tengah, Indonesia. Menurut IUCN (International Union for Conservation of Nature), ikan ini termasuk ikan yang terancam punah oleh sebab kerusakan lingkungan, penangkapan tidak ramah lingkungan dan polusi. Salah satu cara untuk menjaga keberadaan ikan tersebut adalah dengan penerapan metode kriopreservasi sperma. Oleh karena itu, penelitian ini bertujuan untuk menentukan konsentrasi DMSO optimum dan melihat kerusakan DNA yang terjadi pada sperma ikan kawan(Poropontius tawarensis) pasca pembekuan.Metode yang digunakan dalam penelitian ini adalah Rancangan Acak Lengkap (RAL) dengan 6 perlakuan dan 3 ulangan.Perlakuan yang diuji adalah perbedaan konsentrasi DMSO dengan konsentrasi 0; 3%; 6%; 9%; 12% dan 15%.DMSO tersebut dikombinasikan dengan 5% kuning telur. Perbandingan sperma dengan pengencer adalah 1 : 20. Semua cryotube yang berisi sperma dan pengencer diuapkan pada jarak 5 cm dari permukaan nitrogen cair selama 10 menit, selanjutnya, disimpan dalam kontainer nitrogen cair bersuhu -1960C untuk disimpan selama 2 minggu. Hasil penelitian menunjukkan bahwa sperma segar ikan kawan memiliki nilai motilitas sebesar 48,67%, pH 7, berwarna putih susu, dengan konsistensi sedang. Penilaian gerakan massa menujukkan bahwa sperma tersebut berkualitas baik. Hasil uji ANOVA menunjukkan bahwa penambahan DMSO dalam pengencer berpengaruh nyata terhadap motilitas, fertilitas dan daya tetas telur ikan kawan (Poropontius tawarensis) (P0,05) setelah pembekuan. Selanjutnya, uji lanjut Duncan menunjukkan bahwa persentase motilitas sperma dan pembuahan telur ikan kawan tertinggi terdapat pada penambahan DMSO dengan konsentrasi 6%, masing-masing sebesar 46,67% dan 45,67%. Persentase penetasan telur tertinggi juga dijumpai pada perlakuan 6% DMSO, dengan nilai 19,33%. Hasil uji integritas DNA menggunakan metode elektrofresis gel menunjukkan bahwa terdapat kerusakan pada DNA sperma ikan pasca pembekuan, Kerusakan yang terendah terdapat pada konsentrasi DMSO 9% dan 12%. Namun secara umum, disimpulkan bahwa konsentrasi optimum untuk kriopreservasi ikan kawan adalah 6% DMSO.Kata kunci: ikan kawan (Poropuntius tawarensis), kriopreservasi, DMSO, integritas DNA
Keanekaragaman dan Pengelompokan Jenis Ikan di Waduk Mulur Sukoharjo, Jawa Tengah, Indonesia Rahma Faradiana; Agung Budiharjo; Sugiyarto Sugiyarto
Depik Vol 7, No 2 (2018): August 2018
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.7.2.10004

Abstract

ABSTRAKWaduk Mulur mempunyai luas 151 hektar. Waduk ini memiliki satu  inlet dan dua outlet. Pada kawasan inlet dan outlet mempunyai faktor biotik dan faktor abiotik yang berbeda yang dapat mempengaruhi keanekaragaman jenis ikan. Tujuan penelitian untuk mengetahui tingkat keanekaragaman dan pengelompokan jenis ikan yang ada di Waduk Mulur. Penelitian dilakukan pada bulan Oktober-November 2017 dan proses identifikasi ikan di Universitas Sebelas Maret. Pengambilan sampel ikan menggunakan metode purposive sampling dengan menentukan empat stasiun yang mewakili yakni pada kawasan inlet, tengah waduk dan dua lokasi outlet. Sampling dilakukan pukul 06.00-18.00 WIB dengan membuat plot ukuran sekitar 10x20 meter3. Sampling dilakukan sebanyak tiga kali ulangan pada masing- masing stasiun. Alat yang digunakan untuk menangkap ikan adalah jaring biasa, jala, serok ikan, anco, dan pancing. Identifikasi ikan dengan buku Kottelat et al (1993). Parameter lingkungan perairan yang diukur mencakup suhu, kecepatan arus, penetrasi cahaya, DO, BOD, dan plankton. Perhitungan indeks keanekaragaman dengan menggunakan indeks keragaman Shannon Wiener. Hubungan antara faktor abiotik dan keanekaragaman jenis ikan dianalisis dengan uji korelasi regresi menggunakan SPSS versi 23.0. Ikan yang berhasil ditangkap dan diidentifikasi selama penelitian berjumlah 512 ekor dikelompokkan kedalam 11 familia, 16 genus dan 24 species. Berdasarkan perhitungan indeks diversitas ikan menunjukkan di kawasan inlet dan tengah mempunyai indeks diversitas lebih tinggi yaitu 1,003 dan 1,026 sedangkan pada stasiun outlet I dan II secara berturut-turut yaitu 0,784 dan 0,895. Faktor abiotik yang secara signifikan mempengaruhi keanekaragaman ikan adalah penetrasi cahaya dan kecepatan arus. Habitat yang berbeda menyebabkan perbedaan karakter morfologi pada ikan.Kata Kunci : Keanekaragaman, Ikan, Waduk Mulur
Pengaruh laju sedimentasi terhadap tutupan terumbu karang di perairan Kota Daruba, Kabupaten Pulau Morotai Kismanto Koroy; Djainudin Alwi; Novaldo Geri Paraisu
Depik Vol 9, No 2 (2020): August 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.2.16045

Abstract

The coral reef is one of the invertebrate animals that inhabit the marine ecosystem with various aquatic biota. Physical environmental factors including sedimentation, strongly influence coral growth. This study aimed to analyze the percentage of coral cover and the sediment rates in the reclamation area of Daruba City, Morotai Island Regency. This research was carried out in November 2019 using the LIT method to calculate the percentage of coral cover and sediment trap to retrieve sedimentation data. The sediment trap was placed in the bottom waters for 14 days. Stratified filtering was used to separate the sediment, and analytical scales were used to measure dry sediment weight in grams. Sediment sample testing was conducted in the laboratory of the Faculty of Fisheries and Marine Sciences, Khairun University, Ternate. Measurement data were analyzed to calculate the percentage of coral cover and sediment rate analysis. The analysis showed that the percentage of live coral cover was in the range of 10.8 - 20.52%, this value indicates the condition of coral reefs in the waters of the village of Daruba and the waters of the reclaimed development area of the city of Daruba were in the poor category. Sedimentation rate in the reclamation area of the city of Daruba were 307,34 - 492,27 (g /cm2 /day).Keywords: Cover the reef, The rate of sediment, Morotai ABSTRAKTerumbu karang merupakan salah satu hewan avertebrata yang mendiami ekosistem dengan berbagai biota perairan. Pertumbuhan karang sangat dipengaruhi oleh faktor fisik lingkungan, salah satunya adalah sedimen. Tujuan penelitian ini yaitu menganalisis persentase tutupan karang dan menganalisis laju sedimen di area reklamasi kota Daruba Kabupaten Pulau Morotai. Penelitian ini dilakukan pada bulan November 2019 dengan menggunakan metode (LIT) untuk menghitung persentase tutupan karang dan pengambilan data sedimen menggunakan alat sediment trap yang ditempatkan di dasar perairan selama 14 hari. Selanjutnya dilakukan penyaringan bertingkat dan pengukuran berat kering sedimen dalam satuan gram dengan timbangan analitik. Pengujian sampel sedimen dilakukan di laboratorium Fakultas Perikanan dan Ilmu Kelautan Universitas Khairun Ternate. Data pengukuran dianalisis untuk menghitung persentase tutupan karang, dan analisis laju sedimen. Hasil analisis menunjukan persentase tutupan karang hidup berada pada kisaran 10,8 - 20,52%, nilai tersebut menunjukan kondisi terumbu karang di perairan desa Daruba dan area perairan pembangunan reklamasi kota Daruba termasuk dalam kategori buruk. Laju sedimentasi di perairan area reklamasi kota Daruba sebesar 307,34 - 492,27 (g/cm2/hari).Kata kunci: Tutupan karang, Laju sedimen, Morotai
Bioakumulasi timbal (Pb) dan cadmium (Cd) pada Lamun Cymodocea serrulata di Perairan Bangka Selatan Suci Puspita Sari; Dwi Rosalina; Wahyu Adi
Depik Vol 6, No 2 (2017): August 2017
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.6.2.7783

Abstract

The purpose of this study was to measure the heavy metal content of cadmium (Cd) and lead (Pb) in water, sediment and seagrass Cymodocea serrulata from Southern Bangka waters. The research was conducted in two locations in South Bangka Regency, namely Desa Pasir Putih and Tanjung Kerasak.The sediments, waters, and seagrass were collected using purposive random sampling method. Measurement of water quality data was in situ. Seagrass sampling is done by transect method. The Cd and Pb contents in the Water, sediments and sea grass samples were analyzed using Atomic Absorption Spectrophotometer (AAS). The results showed that Cd concentration in water was higher than Pb, with the range of between 0.29 to 0.39 mg/l. Pb was higher than Cd in the sediment ranges between 4.74 to 7.68 mg/kg. The highest Cd concentration was detected at the seagrass leaf with a range of 1.76⎼2.44 mg/kg, while the highest Pb concentration at the seagrass roots ranged from 1.94 ⎼ 6.52 mg/kg. The high content of heavy metals Cd and Pb on seagrass sections, when compared to water and sediments, shows that seagrass accumulates metals derived from water and sediment. The Bioconcentration factor (BCF) showed that seagrass leaves can accumulate Cd of 6.16 and Pb of 5.31. While The BCF value of the seagrass roots is able to accumulate Cd of 0.53 and metal Pb of 0.55Penelitian ini bertujuan untuk mengukur kandungan logam berat cadmium (Cd) dan timbal (Pb) pada air, sedimen dan lamun Cymodocea serrulata. Penelitian dilakukan di 2 lokasi di Kabupaten Bangka Selatan, yaitu Desa Pasir Putih dan Tanjung Kerasak. Metode Penelitian merupakan penelitian survei dengan pendekatan kuantitatif. Sampling dalam penelitian ini meliputi sampling kualitas, pengambilan sampel air, sedimen dan lamun menggunakan metode Purposive Random Sampling. Pengukuran data kualitas air dilakukan secara insitu. Pengambilan sampel lamun dilakukan dengan metode transect. Sampel air, sedimen dan lamun dianalisis menggunakan Atomic Absorption Spectrophotometer (AAS). Hasil analisis logam berat Cd dan Pb di air menunjukkan bahwa konsentrasi Cd di air lebih tinggi daripada Pb, dengan kisaran 0,29⎼0,39 mg/l. Konsentrasi logam berat tertinggi pada sedimen yaitu Pb, berkisar antara 4,74⎼7,68 mg/kg. Konsentrasi Cd tertinggi terdeteksi pada bagian daun lamun dengan kisaran 1,76⎼2,44 mg/kg, sedangkan konsentrasi Pb tertinggi pada akar lamun berkisar antara 1,94 ⎼ 6,52 mg/kg. Tingginya kandungan logam berat Cd dan Pb pada bagian lamun jika dibandingkan di air dan sedimen, menunjukkan bahwa lamun mengakumulasi logam yang berasal dari air dan sedimen. Nilai faktor biokonsentrasi (BCF) menunjukkan bahwa daun lamun dapat mengakumulasi logam Cd sebesar 6.16 dan logam Pb sebesar 5,31. Nilai BCF akar lamun dan logam berat menunjukkan bahwa akar lamun mampu mengakumulasi logam Cd sebesar 0,53 dan logam Pb sebesar 0,55.
Kajian kesesuaian lingkungan untuk pengembangan wisata di Pantai Ganting, Pulau Simeulue, Provinsi Aceh Herdiana Mutmainah; Gunardi Kusumah; Try Altanto; Koko Ondara
Depik Vol 5, No 1 (2016): APRIL 2016.
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.5.1.3844

Abstract

Abstract. Simeulue Island is situated Indian Ocean in western part of Aceh Province, this is one of the outer island in Indonesia. Simeulue has big potency in marine resources such as  clean waters and beautiful beach, coral reefs and mangrove ecosystems. Therefore, Simeulue is very promising as an ecotourism destination. The objective of present study was to evaluate the condition of the water quality and the potency for a marine ecotourism development. The feasibility study was conducted on August in Ganting Beach, Village of Kuala Makmur, Simeulue Island. The purposive random sampling method was used to determine twelve sampling stations. The measured water quality parameters were pH, temperature, salinity, turbidity, dissolved oxygen, brightness, BOD5, odors, oil and debris. These parameters were analyized and mapped using software ODV, and then compared to the sea water quality standard for marine tourism as well as the characteristics of the coast to the suitability index of recreational area. The results showed that the water quality of Ganting Beach is very suitable for recreational activities (index 77, category S1)  andit is suitable for swimming and also for boating tourism activities, banana boats and jet skis (index 16, category S2).Keywords: water quality; marine tourism; Ganting Beach Abstrak. Pulau Simeulue, merupakan salah satu pulau terdepan sebelah barat Negara Kesatuan Republik Indonesia (NKRI), dan terletak di Samudera Hindia.Simeulue memiliki potensi sumberdaya laut yang besar, diantaranya perairan yang besih dan jenih, pantai yang indah, terumbu karang dan hutan bakau, sehingga sangat berpotensi untuk dikembang menjadi tujuan wisata. Penelitian ini bertujuan untuk menilai kondisi kualitas perairan dan potensi kesesuaian wisata Pulau Simeulue.Penelitian ini dilaksanakan pada bulan Agustus 2015 bertempat di Pantai Ganting, Kelurahan Kuala Makmur, Kabupaten Simeulue. Sebanyak 12 lokasi pengambilan sampel kualitas air ditetapkan secara purposive random sampling. Kualitas air yang diukur meliputi; pH, suhu, salinitas, kekeruhan, oksigen terlarut, kecerahan, BOD5, bau, lapisan minyak dan sampah. Data tersebut kemudian dipetakan dan dianalisis menggunakan software Ocean Data View (ODV), kemudian dibandingkan dengan baku mutu air laut untuk wisata bahari serta karakteristik pantai untuk indeks kesesuaian kawasan wisata rekreasi. Hasil penelitian menunjukkan bahwa kualitas perairan Pantai Ganting sangat sesuai untuk kegiatan rekreasi dan berenang (indeks 77, kategori S1) dan sesuai untuk kegiatan wisata berperahu, banana boat dan jet ski (indeks 16, kategori S2).Kata kunci:kualitas perairan; wisata bahari; Pantai Ganting.
Particle tracking simulation of marine debris using Lagrangian discrete and mesh spatial discretization in Banda Aceh waters Koko Ondara; Guntur Adhi Rahmawan; Syahrul Purnawan
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.10.1.18722

Abstract

Ocean dynamics has a direct impact on the distribution of objects or dissolved particles such as marine debris. Hydrodynamic studies are currently an important tool to identify the potential pollution in the region. Data were collected from March to September 2019 in the northern waters of Banda Aceh. Wind data were obtained using AWS and bathymetry data were collected using the single beam echosounder. The results showed that the wind direction on the coast of Banda Aceh City was dominant towards the Northwest and Northeast with a maximum speed of 9 m/s. Wind direction will highly influence the sea surface currents dynamics that lead to longshore currents and radiation currents occur in coastal areas.Keywords:Marine debrisWasteFishery

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