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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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Selection and cultivation of seaweed Kappaphycus alvarezii using a long line system (outdoor) Satriani, Gloria I.; Soelistyowati, Dinar Tri; Alimuddin, Alimuddin; Arfah, Harton; Effendi, Irzal
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 3 (2023): DECEMBER 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.3.30211

Abstract

In outdoor cultivation at Amal Beach, three seeding mass selections were reared for 30 days for each cycle. Each variety had a different DGR %/day (Daily Growth Rate %/day) value at the end of the growing season on G1-G2-G3 ranging from 3.62-5.90 %/day, which were still categorized as good, and G3 var.Lampung had the highest DGR value. Carrageenan yield values in this study, G1 to G3, ranged from 23.16% to 45.87%, where the G3 G2 G1 treatment. The best thallus samples (20% were selected for each generation) resulted in carrageenan yield sample population in each variety, where var.Lampung var.Tarakan var.Kupang. The biplot analysis shows that the DGR variable vector coincides with the IAA, Phosphate, Gibberellin, and Ammonia vectors. Ammonia stepwise regression analysis (sig) affects DGR with an Ammonia coefficient value of 4.89; meaning that for each increase in the Ammonia value by one unit, the estimated mean value of DGR will increase by 4.89. Thus, the application of themassbased on the results of this study was able to increase the DGR valueKappaphycus alvarezii,which in turn produce the highest yield of carrageenan withK. alvareziivar.Lampung G3 was the best seed candidate to be developed at the seaweed cultivation site in Tarakan City.Keywords:AlgaePhytohormonesCarrageenanNitrogenViscosity
Utilization of enzyme hydrolysis from Shrimp Head in improve the quality catfish Untari Untari; Evi Hudriyah Hukom; Reni Permata
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.11.2.24730

Abstract

Protein is one of the most important components that can support the growth and development of catfish. The price of feed with high protein content which is relatively expensive is a big problem in the catfish farming process. On the one hand, there is shrimp head waste which is a source of protein with a protein content of 42.16% - 49.8% which has not been utilized and is disposed of as waste. Through this research, the shrimp head waste was carried out by an enzyme hydrolysis process to produce shrimp soluble extract (SSE) using a protease enzyme. The SSE that has been produced is then given to catfish aged 14 days to support the addition of protein sources for the growth of catfish. During the 1 month trial, there was a significant difference in results in the treatment catfish with the addition of 2% SSE compared to the control catfish. The addition of SSE gave a very good effect on the weight of catfish which was randomly distributed in a tank containing 50 catfish with an average initial weight of 0.6-0.8 grams. The provision of SSE was carried out simultaneously with the provision of standard fish feed, namely 3 times a day. The increase in catfish weight after being treated was about 2 grams/week. This indicates that SSE can increase the growth of catfish and can be used as an alternative supplement in the future because in addition to reducing the level of pollution due to catfish waste, it can also be a new discovery in the field of fisheries.
Intensitas dan prevalensi ektoparasit dan endoparasit pada ikan belanak Liza macrolepis (Smith, 1846) di perairan pantai Barat-Selatan Aceh Muamar Abdan; Agung S. Batubara; Firman M. Nur; Derita Yulianto; Sugito Sugito; Zainal A. Muchlisin
Depik Vol 9, No 3 (2020): December 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.3.17959

Abstract

The Largescale mullet Liza macrolepis is a common fish found in estuaries and coastal areas and the fish is used as a source of protein by coastal communities. This study aims to analyze the prevalence and intensity of parasitic infected on mullets harvested from the waters of the West - South Aceh. This research was conducted from March to April 2019 in 8 locations, namely; Estuary Aceh River, Gampong Jawa, Banda Aceh city, Coastal Ujong Pancu, Peukan Bada, Aceh Besar, Estuary Teunom River, Calang, Aceh Jaya, Estuary, and Coastal Kuala Bubon, Samatiga, West Aceh, Estuary Nagan River Langkak Kuala Tuha Nagan Raya, Estuary, and Coastal Susoh, Blang Pidie, Southwest Aceh, Estuary and Coastal Indra Damai, Kluet Selatan, South Aceh and Estuary Sua- Sua River and Ujong Umo River, Simeulue. A total of 343 samples were examined for ectoparasites and endoparasites at the Laboratory of Hatchery, Faculty of Marine and Fisheries, Syiah Kuala University. The results showed that there were seven species of parasites, infected the mullet samples namely; Ectoparasites (Cymanthoa sp., Ergasilus sp., Lernanthropus sp., Monstriloida sp., Myxobolus sp.) and Endoparasites (Nematodes and Trematodes). Prevalence value of Kota Banda Aceh was 33% ectoparasites and 28% endoparasites), Aceh Besar was 21% ectoparasites and 15% endoparasites, Aceh Jaya was 4% ectoparasites and 4% endoparasites, Southwest Aceh was 2% ectoparasites and 2% endoparasites, Simeulue was 9% ectoparasites and 9% endoparasites. It is concluded that the higher prevalence and intensity were found in fish samples from Banda Aceh and Aceh Besar, while no fish from Nagan Raya and Aceh Selatan were infected by parasites.Keywords:ParasiteCoastalEstuaryPollutant ABSTRAKIkan belanak Liza macrolepis sering dijumpai di muara dan pesisir pantai dan dijadikan sebagai sumber protein oleh masyarakat pesisir. Saat ini belum ada penelitian terkait jenis-jenis parasite yang menyerang ikan belanak di perairan Aceh, khususnya di pantai Barat Selatan Aceh. Oleh karena itu, penelitian ini bertujuan untuk menganalisis prevelensi dan intensitas parasit pada ikan belanak di perairan Barat Selatan Aceh. Penelitian dilakukan sejak Maret sampai April 2019 meliputi 8 lokasi, yaitu; Muara Krueng Aceh, Gampong Jawa Kota Banda Aceh, Ujung Pancu, Peukan Bada Aceh Besar, Muara Krueng Teunom, Calang Aceh Jaya, Muara Sungai/Pesisir Kuala Bubon, Samatiga Aceh Barat, Muara Krueng Nagan, Kuala Tuha Nagan Raya, Muara/Pesisir Susoh, Blang Pidie Aceh Barat Daya, Muara/Pesisir Indra Damai, Kluet Selatan Aceh Selatan dan Muara sungai Ujong Umo dan muara sungai Sua – Sua, tepah barat dan Simeulu Timur, Simeulu.  Metode digunakan adalah preparat ulas (Smeer method). Sebanyak 343 sampel dibedah untuk dilakukan pemeriksan ektoparasit dan endoparasit di Laborarorium Pembenihan Ikan, Fakultas Kelautan dan Perikanan, Universitas Syiah Kuala. Hasil penelitian ditemukan 7 jenis parasit, ektoparasit (Cymanthoa sp., Ergasilus sp., Lernanthropus sp., Monstriloida sp., Myxobolus sp.) dan Endoparasit (Nematoda dan Trematoda). Nilai prevalensi; Kota Banda Aceh (33% ektoparasit, 28% endoparasit), Aceh Besar (21 % ektoparasit, 15% endoparasit), Aceh Jaya (4% ektoprasit dan 4%endoparasit), Aceh Barat Daya (2% ektoprasit dan 2% endoparasit) Simeulu (9% ektoparasit dan 9% endoparasit). Disimpulkan bahwa prevelensi dan intensitas parasit tertinggi dijumpai pada sampel ikan dari Banda Aceh dan Aceh Besar, sedangkan ikan sampel dari Nagan Raya dan Aceh Selatan bebas dari serangan parasit. Kata kunci:ParasitpesisirMuara sungaiPencemaran
Dampak keberadaan Pelabuhan Perikanan Nusantara Idi Aceh Timur terhadap sosial ekonomi masyarakat nelayan Insyafrijal Insyafrijal; Muhammad Nasir; Faisal Abdullah
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.7.2.10033

Abstract

The purpose of this study was to analyze the socio-economic impact of the community as beneficiaries of Idi fishing port (PPN) and to formulate a strategy to increase people's income. The method used in this research is descriptive method and case study, where descriptive method is used to collect data about the condition and activity of Idi fishing port operation within 5 (five) years, while the case study method is used to know the socio-economic condition of the community as the beneficiary ports, where the data were taken are workers within the port area as well as direct or indirect beneficiaries of port activities with a focal point on fishing communities as the largest workers in the port area. Formulation of income generation strategy using SWOT analysis. The results of the study explain that the condition of the community around the of Idi fishery port is not much different from the condition of other coastal communities where education is not the main priority. In addition, the amount of income in general is still strongly influenced by fish production and ship visits and has not yet met the needs of household fishermen's expenditure. Strategies that can be used to increase people's income is through increased efficiency in the preparation of facilities and infrastructure so that the process of fishing and loading and unloading fish can be faster, saving time and saving cost. Further information on the location of fishing ground and encourage the use of frozen freezer on board is recommended to be done so that the cost of fishing is cheaper and fish prices higher. Tujuan penelitian ini adalah untuk  menganalisis dampak sosial ekonomi masyarakat nelayan sebagai penerima manfaat Pelabuhan Perikanan Nusantara (PPN) Idi serta merumuskan strategi peningkatan pendapatan masyarakat. Metode yang digunakan dalam penelitian adalah metode deskriptif dan studi kasus, dimana metode deskriptif digunakan untuk mengumpulkan data mengenai kondisi dan aktivitas operasional  PPN Idi dalam jangka waktu 5 (lima) tahun. Perumusan strategi peningkatan pendapatan masyarakat menggunakan analisis Internal Strengths dan weaknesses serta lingkungan Eksternal Opportunities dan Threats (SWOT). Hasil penelitian menjelaskan bahwa kondisi masyarakat nelayan disekitar PPN Idi tidak jauh berbeda dengan kondisi masyarakat pesisir lainnya dimana pendidikan bukan prioritas utama. Selain itu jumlah pendapatan secara umum masih sangat dipengaruhi oleh produksi ikan serta kunjungan kapal. Strategi yang bisa digunakan untuk meningkatkan pendapatan masyarakat yaitu melalui peningkatan efisiensi dalam penyiapan sarana serta prasarana sehingga proses nelayan berangkat dan bongkar muat ikan bisa lebih cepat, menghemat waktu dan biaya. Selanjutnya informasi lokasi keberadaan ikan secara berkala serta mendorong penggunaan freezer beku diatas kapal direkomendasikan untuk dilakukan sehingga biaya melaut lebih murah dan harga ikan lebih tinggi. 
Pertumbuhan dan konsumsi pakan ikan lele (Clarias sp.) yang diberi pakan berbahan baku lokal Zaenal Abidin; Muhammad Junaidi; Paryono .; Nunik Cokrowati; Salnida Yuniarti
Depik Vol 4, No 1 (2015): APRIL 2015
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.1.1.2360

Abstract

Abstract. Fish meal, corn, and rice bran are feed ingredient which easily obtained. Different of quality and amount of each ingredients in fish feed result a various respons on fish.  The aim of this study were to determine respon of growth and feed consumption of walking cat fish (Clarias sp.) which fed feed made of fish meal, rice bran, and corn. The experimental diets containing fish meal, corn meal, and rice bran meal, respectively A. 70;10:19,5.; B. 60;25;14,5 C=60,19,75:19,75; D=60:9,5:30, and the other diets, E and F, were commersial diets. Daily growth rate, feed consumption, feed eficiency, and feed conversion ratio showed significant differences (p0,05) among the treatments. In general, feed consumption rate, daily growth rate, feed efficiency, and feed conversion rate were best obtained on commercial feed, while feed made from local ingredients showed lower performance than commercial feed. The low quality of feed local ingredients were caused by used low quality of local ingredients which caused the level minimum of fibre and ash were high in 17,9% and 23,5%, respectively. The utilization of Local fish meal 60-70%, corn meal 9,5-19,75%, and rice bran meal 14,5-30% in fish diet did not result better growth performance than commercial diet, however the best formulation for local ingredients of fish meal, corn meal, rice bran meal were 60%; 19,75%; 19,75% and 60%; 9,5%;30 % respectively Keywords : Corn meal; diets; feed consumption; fish meal; growth; rice bran; walking catfish (Clarias sp.)Abstrak.  Tepung ikan, jagung dan dedak padi adalah merupakan bahan baku yang mudah diperoleh dan dapat digunakan sebagai bahan baku pakan ikan, meskipun demikian perbedaan kualitas setiap jenis bahan baku dan jumlah pengggunaan setiap bahan baku dalam pakan dapat menghasilkan respon yang berbeda terhadap ikan. Penelitian ini bertujuan untuk mengetahui respon pertumbuhan dan konsumsi pakan ikan lele (Clarias sp.) yang diberikan pakan berbahan tepung ikan, tepung dedak padi, dan tepung jagung. Pakan uji yang dicobakan adalah pakan dengan komposisi tepung ikan: tepung jagung, dan: tepung dedak yang berbeda yaitu masing-masing A=70:10:19,5; B=60:25:14,5; C=60:19,75:19,75; D=60:9,5:30, serta dua pakan komersial yaitu E dan F Hasil penelitian menunjukkan bahwa pakan dengan komposisi bahan baku yang berbeda berpengaruh (p0,05) terhadap laju pertumbuhan harian, tingkat konsumsi pakan, efisiensi pakan dan rasio konversi pakan. Tingkat konsumsi pakan, laju pertumbuhan harian, efisiensi pakan dan rasio konversi pakan yang terbaik diperoleh pada pakan komersial sedangkan pakan yang berbahan baku lokal menunjukkan tampilan yang lebih rendah dibandingkan pakan komersial. Rendahnya kualitas pakan berbahan baku lokal diduga disebabkan oleh bahan baku lokal  yang digunakan memiliki kualitas yang rendah sehingga menghasilkan pakan dengan kandungan serat kasar dan abu yang tinggi masing-masing minimal 17,9% dan 23,5%. Penggunaan bahan baku local yaitu tepung ikan 60-70%, tepung jagung 9,5-19,75% dan dedak 14,5 – 30% belum dapat menghasilkan tampilan pertumbuhan yang lebih baik dibandingkan dengan pakan komersial, meskipun demikian formulasi terbaik  pakan berbahan baku lokal diperolah pada komposisi tepung ikan; jagung; dedak adalah 60%; 19,75%; 19,75% dan 60%; 9,5%;30 %.Kata kunci    : Ikan lele (Clarias sp.); konsumsi pakan; pakan; pertumbuhan; tepung dedak; tepung ikan; tepung jagung
Diversity and distribution of fish in the Lokop river, Leuser Ecosystem Area, Indonesia Maghfiriadi, Furqan; Firdus, Firdus; Sarong, M. Ali; Zulfahmi, Ilham; Batubara, Agung Setia
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.12.1.30181

Abstract

Lokop is one of the villages in Serbajadi District, East Aceh Regency, Aceh Province. The village has a watershed named the river Lokop. This river is located in the Leuser Ecosystem Area which is inhabited by various aquatic biota, especially fish, with the level of diversity and distribution patterns that need to be studied and analyzed conoftened. This study used the purposive sampling method, with the parameters being the level of diversity and distribution patterns of fish in the Lokop river. Data collection was carried out at 5 observation stations based on the typology of river habitat, each station was divided into three substations representing parts of the basin, river bank and river basin approximately 50 m apart. Fish sampling is carried out at each station using a plot of 10 x 10 m2. The number of plots at each station is 9 plots with a total of 45 plots. The results showed that the diversity index (H') value of fish in the Lokop river was 2.39 in the moderate category and the distribution pattern of fish in the Lokop river has a uniform pattern and clusters. Out of a total of 17 species obtained, 8 species (47%) were clustred, 8 species (47%) were uniformly distributed and 1 species (6%) could not be analyzed because only one individual was found.Keywords:FishRiverDiversityDistribution
Microhabitat association and population status of the Luwuk introduced Banggai cardinalfish (Pterapogon kauderni Koumans, 1933) population Novalina Serdiati; Abdul Gani; Deddy Wahyudi; Abigail Mary Moore; Samliok Ndobe
Depik Vol 10, No 3 (2021): December 2021
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.10.3.23501

Abstract

The Banggai cardinalfish Pterapogon kauderni is the Indonesian national marine ornamental fish mascot, and an object of national and international conservation concern. The endemic population of this species is limited to the Banggai Archipelago in Central Sulawesi, Indonesia and a few nearby islands in North Maluku. In addition, introduced populations have become established, mainly along ornamental fish trade routes. The National Action Plan for Banggai Cardinalfish Conservation (NAP-BCFC) calls for monitoring and management of all P. kauderni populations. A survey of the Luwuk introduced P. kauderni population was carried out in October 2021.   Data were collected at three sites with established P. kauderni populations: the ferry harbour, public harbour (Teluk Lalong) and a recreational area on the nearby coast (Kilo 5). P. kauderni were recorded by microhabitat association and size class (recruits, juveniles, adults). Data collected were compared with data from previous surveys where available. With the exception of one group in a sea anemone at Kilo 5, all P. kauderni were associated with Diadema sea urchins (D. setosum at all sites; D. savignyi at Kilo 5). At Kilo 5 P. kauderni the population structure indicates the possible capture of market-sized juveniles. Overall abundance was also lower compared to the polluted but unfished harbours. The proportion of recruits was significantly negatively correlated with the ratio of adult P. kauderni to Diadema urchins. The results will inform regional legislation currently in preparation to support sustainable management of P. kauderni populations, habitat and microhabitat in Central Sulawesi, as well as contributing to NAP-BCFC targets.Keywords:Banggai cardinalfishEndangered speciesDiademaMicrohabitat,MonitoringOrnamental fisheryLocal regulation
Komunitas Echinodermata di kawasan intertidal Pantai Mandalika Pulau Lombok, Indonesia Imam Bachtiar; I Wayan Merta; Kusmiyati Kusmiyati; AR Syachruddin
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.9.2.13582

Abstract

Echinoderm community was studied at the Mandalika Beach which is the main habitat of nyale worms in the southern coast of Lombok Island, from July to September 2017. The aim of study was to describe community structure of Echinoderm fauna and population structure of predominant species. Data on species richness and its abundance were collected using transect-quadrate methods. Five transects were laid haphazardly seaward that may represent the whole reef flat with about 200 m length and 100 m wide.  On every 10 meter along the transect length a 5x1 m2 quadrate was made, that overall there were 44 quadrates. The results showed that only eight species of Echinoderms found in the quadrate samples, i.e. sea urchin Echinometra mathaei (Echinoidea), and brittle stars, Ophiocoma scolopendrina, O. echinata, O. erinaceus, Ophiomastix annulosa and Ophioderma sp. (Ophiuroidea). Two other Echinoidea were also found outside the quadrates, i.e. Echinothrix calamaris and Diadema setosum. Simpson diversity index (D) was 1,243, eveness index (E) was 4,023, Shanon-Winner diversity index (H) was 0,430 and equatibility index (J) was 0,267. Sea urchin E. mathaei was the most predominant population (89,38% of total composition) with average abundance 11,87±22,37 individual m2. Brittle star O. scolopendrina come the second predominant population (7,31%) with average abundance 0,86±2,43 individual m2. The other four brittle stars had very low proportion (2%) and low abundance ( 0,20  individual m2). Population stucture showed that these two populations mostly consisted of reproductive members. Ecological interactions of these two predominant Echinoderms should be studied in more detail on interactions among of the Echinoderms and nyale worms. Keywords: Ophiocoma, Echinometra, Nyale, Lombok Tengah, population structure ABSTRAKPenelitian komunitas Echinodermata dilakukan di Pantai Mandalika yang menjadi habitat utama cacing nyale, pada bulan Juli-September 2017. Penelitian ini bertujuan mendeskripsikan struktur komunitas Echinodermata dan struktur populasi spesies yang dominan. Data kekayaan spesies dan kelimpahan diambil dengan metode transek kuadrat. Lima transek diletakkan tersebar ke arah laut pada pantai yang panjangnya sekitar 200 m dan lebar 100 m tersebut. Setiap titik 10 meter pada transek dibuat kuadrat ukuran 5 m2, dengan jumlah kuadrat sampel seluruhnya 44 kuadrat. Hasil penelitian menunjukkan bahwa komunitas Echinodermata mempunyai kekayaan spesies yang rendah di Pantai Mandalika. Organisme Echinodermata yang dijumpai hanya 8 (delapan) spesies, yaitu landak laut Echinometra mathaei (Echinoidea), serta lima jenis bintang mengular, Ophiocoma scolopendrina, O. echinata, O. erinaceus, Ophiomastix annulosa dan Ophioderma sp. (Ophiuroidea). Di luar kuadrat tercatat dua jenis landak laut lainnya, yaitu Echinothrix calamaris dan Diadema setosum, dengan kelimpahan yang sangat rendah. Indeks-indeks komunitas pada umumnya rendah. Indeks diversitas Simpson (D) 1,243, indeks keseragaman (E) 4,023, indeks keanekaragaman spesies Shanon-Winner (H) 0,430 dan indeks kesetaraan (J) 0,267. Landak laut E. mathaei sangat dominan (89,38%) dengan kelimpahan rata-rata 11,87±22,37 individu m-2 di dalam komposisi komunitas Echinodermata. Bintang mengular O. scolopendrina menempati urutan dominansi kedua (7,31%) dengan kelimpahan rata-rata 0,86±2,43 individu m-2, sedangkan empat bintang mengular lainnya mempunyai proporsi kurang dari 2% dan kelimpahan rata-rata kurang dari 0,20  individu m-2. Struktur populasi E. mathaei dan O. scolopendrina menunjukkan bahwa sebagian besar anggota populasi mempunyai ukuran reproduktif. Kehadiran hewan Echinodermata tersebut di habitat cacing nyale (Eunicidae, Polychaeta) menuntut penelitian lanjutan tentang peran ekologis dari masing-masing hewan Echinodermata dan interaksinya dengan cacing nyale.Kata kunci: Ophiocoma, Echinometra, Nyale, Lombok Tengah, Struktur populasi
Struktur komunitas dan pemetaan ekosistem mangrove di pesisir Pulau Maitara, Provinsi Maluku Utara, Indonesia Nebuchadnezzar Akbar; Nasir Haya; Abdurrachman Baksir; Zulhan A. Harahap; Irmalita Tahir; Yunita Ramili; Raismin Kotta
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.6.2.6402

Abstract

Mangrove is ecosystem important in coastal area. Human exploited make decrease habitat mangroves ecosystem. The highly activity in this area threaten quantity ecology ecosystem mangroves.The objective of the present study was to examine the ecological indices and mapping of mangrove in coastal region on Maitara Island, North Moluccas.Information about that most important for sustainable mangrove management. The results showed that mangroves composition found that 4 specieses belong to 3 families.total density of stations namely 215.78 tree/hectare, frequency 722.22 tree/hectare, percent cover 189.29% and significantion value 300 every stations. The density and frequency highest of species found Rhizopora apicullata, Avicennia alba, Sonneratia alba. The density and frequency lowest Sonneratia caseolaris. The percent cover highest types derived Sonneratia alba, Sonneratia caseolaris, Avicennia alba and percent lowest is Sonneratia caseolaris. Overall the ecological index analysed diversity of mangroves found is minor. The characterize mangrove zonation that Rhizhopora Sp is aleadingconstituentof mangrove ecosystem from coast to land inthe Maitara Island. Extensivemangroveobtained fromfieldclassificationandmapping resultsof4.91hectares. Correctionfield data andpreviousliterature studiesindicatedthere have been adecline inmangroveareaat1.09during 3 years.The overall necessaryapproaches to conservationandsustainable managementofmangroveecosystem andconservation interestson the Maitara Island. Mangrove merupakan ekosistem penting di daerah pesisir.Meningkatnya exploitasi manusia menurunkan habitat ekosistem mangrove. Tingginya aktivitas mengancam kuantitas ekologi ekosistem mangrove.Tujuan penelitian ini untuk melihat struktur komunitas dan pemetaan ekosistem mangrove. Pengambilan data mangrove dilakukan pada tahun 2015. Hasil penelitian menemukan bahwa komposisi jenis mangrove yang ditemukan terdiri dari 3 family dengan 4 spesies. Total keseluruhan kerapatan stasiun yaitu 215.78 batang/hektar, frekuensi 722.22 batang/hektar, tutupan 189.29% dan nilai penting 300 tiap stasiun. Kerapatan dan frekuensi jenis tertinggi ditemukan Rhizopora apicullata, kemudian Avicennia alba, disusul Sonneratia alba dan terendah Sonneratia caseolaris. Tutupan jenis tertinggi diperoleh jenis Sonneratia alba, kemudian Sonneratia caseolaris, disusul  Avicennia alba dan terendah Rhizopora apicullata. Nilai penting tertinggi pada jenis Sonneratia alba, kemudian Rhizopora apicullata, setalah itu Avicennia alba dan terendah adalah jenis Sonneratia caseolaris. Secara umum keseluruhan indeks nilai keanekaragaman jenis mangrove di Pulau Maitara yang diperoleh rendah. Tipe zonasi yang ditemukan bahwa jenis Rhizhopora Sp merupakan penyusun terdepan  hutan  mangrove dari arah laut ke daratan di Pulau Maitara.Luas mangrove yang didapat dari klasifikasi lapangan dan hasil pemetaan sebesar  4.91 hektar. Koreksi data lapangan dan studi literature sebelumnya mengindikasikan telah terjadi penurunan luas mangrove sebesar 1.09 Ha dengan rentan 3 tahun. Sehingga diperlukan pendekatan konservasi dan pengelolaan berkelanjutan untuk kepentingan pelestarian hutan mangrove di Pulau Maitara. 
Analysis sustainability status of laeya river management for raw water supply in South Konawe Regency Southeast Sulawesi Province Surya, Ridwan Adi; Ismail, Darwin; Yasin, Asramid; Aba, La; Erif, La Ode Muhammad
Depik Jurnal Ilmu Ilmu Perairan, Pesisir, dan Perikanan Vol 12, No 3 (2023): DECEMBER 2023
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.12.3.33538

Abstract

South Konawe Regency experienced a decrease in water supply and an increase in water demand, due the changes in land use caused by ongoing land exploitation, which increases runoff and decreases infiltration capacity. As a result, more water is lost to the ocean, threatening the water supply from Laeya River. Laeya River raw water is not only utilized for PDAM raw water sources, but also used to meet the domestic needs of the community, agricultural irrigation and plantations, so it is important to know the its sustainability status. This research aims to carrying out activities that control the water quality of the Laeya River, as well as to serve an information regarding the status model for the sustainability of raw water management, and to raise environmental awareness. This study was carried out in the Laeya River, South Konawe Regency. Sampling was conducted at three stations representing the upstream area of the Laeya River, the middle area and the downstream area. The Multi Dimensional Scaling (MDS) analysis method was used to conduct an analysis of the status of sustainable natural resource management for sustainable raw water supply. Based on the results can be concluded that Analysis of the 41 attributes derived from five dimensions resulted in 12 attributes acting as leverage factors in each dimension partially. To improve the sustainability status of raw water management in the research area, it is necessary to intervene the 12 attributes, namely 11 attributes that need to increase the intensity of their activities, and one attribute needs to be controlled and planned for its development properly. The results of the assessment of 41 attributes from five dimensionsin the management of the Laeya River for raw water supply in South Konawe Regency, currently is at less Sustainability status(Sustainability Index value of 36.63).KeywordsSustainability Raw WaterMDSMonte CarloRAPS-LaeyaSouth Konawe Regency

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