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Community Structure on Seagrass Fish Resources at Pandaratan Beach, North Sumatra : Struktur Komunitas Sumberdaya Ikan Padang Lamun di Pantai Pandaratan, Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara Pulungan, Ahyar; Inrika, Huwilda; Fadhilah, Amanatul
Tropical Fisheries Management Journal Vol 4 No 1 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i1.30909

Abstract

Seagrass beds are potential marine resources to be utilized, and ecologically, seagrass beds are some of the important functions of the coastal area. Many organisms are ecologically and biologically very dependent on the presence of seagrasses. The ecosystem is an important food source for the organism by many sea organisms that use it as a spawning place. This study aims to determine the diversity of fish in seagrass beds in Padaratan Beach, Sarudik Subdistrict, Central Tapanuli Regency. A gillnet is used to obtain fish samples at three observation stations during the period from mid-March to April 2018. Fish diversity can be agreed by looking at the composition of fish species and diversity index. The results of this study show the total number of fish obtained, 196 individuals, consisting of 12 families and 14 species. The highest number of fish catches is at Station II with a total catch of 70 individuals. The highest relative abundance of stations I, II, and III with values ​​of 22.96%, 20.01%, and 23.07% are found in fish species from the family Hemaramphidae with Zenarchopterus gilli species. The diversity index value (H') of all observation stations shows that species richness is in a moderate condition with values ​​of the station I (2,339), station II (2,439) and station III (2,367). While the uniformity value (e), shows the value of station I (0.866) station II (0.924) and station III (0.897) observations are in a stable condition (0.75 <e d ”1.00). Such conditions indicate that the distribution at each observation station is equitable.
Productivity of Bentic Organisms (Order Diptera) in Cigambreng River, Tapos Village, Subdistrict Tenjoloya, Bogor Regency, West Java: Produktivitas Sekunder Organisme Bentik (Ordo Diptera) di Sungai Cigambreng, Desa Tapos, Kecamatan Tenjolaya, Kabupaten Bogor, Jawa Barat Rizky Regina Kawirian; Arif Nurcahyanto; Didit Abdillah; Grin Tommy Panggabean; Muhammad Irfan Afif; Ahyar Pulungan; Chichilia Qaila Azzahra Rahman; Mursalin Ishak; Majariana Krisanti
Tropical Fisheries Management Journal Vol 4 No 1 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i1.30904

Abstract

Insekta memiliki biodiversitas dengan penyebaran yang luas diseluruh dunia. Sampling dilakukan sekali dalam seminggu selama bulan Oktober 2019. Ditemukan total 717 spesimen Ordo Diptera yang melingkupi dua famili di Sungai Cigambreng. Tiap famili yang diperoleh melingkupi satu jenis yakni Antocha sp. (Famili Tipulidae.) dan Krenopelopia sp. (Chironomidae). Kehadiran jenis chironomid mengindikasikan adanya beban masukan berlebihan (Polutan) ke dalam perairan sungai Cigambreng. Secara umum, kelimpahan tertinggi diperoleh pada pengamatan ke empat yakni 284 ind/m2, sedangkan kelimpahan terendah diperoleh pada pengamatan ke dua yakni 60 ind/m2. Produktivitas sekunder melingkupi P/B Rasio sebesar 3.034/bulan dengan kecepatan produksi 14.2458 (g/m2/bln) dan biomassa (4.6954 g/m2).
Secondary Productivity of Crambidae Family in Cigambreng River, Tapos Village, Bogor: Produktivitas Sekunder Famili Crambidae di Sungai Cigambreng, Desa Tapos, Bogor Arif Nurcahyanto; Ahyar Pulungan; Didit Abdillah; Muhammad Irfan Afif; Grin Tommy Panggabean; Rizky Regina Kawirian; Chichilia Qaila Azzahra Rahman; Majariana Krisanti
Tropical Fisheries Management Journal Vol 4 No 1 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i1.30905

Abstract

Secondary productivity is the formation of biomass of heterotrophic organisms in units of time including biomass that is lost in a certain time unit. The Crambidae family is an insect that has aquatic larvae and will become an air insect after the larval phase. This species has the potential to become a pest for agriculture. The study was conducted in October 2019 for one month. The Crambidae family species found consists of two species, Petrophila sp. and Elophila sp. The abundance of Crambidae during the study ranged from 100 ind/m2 to 422 ind/m2. Secondary productivity was analyzed by the size frequency method. The secondary productivity of the Crambidae family in Cigambreng river waters for one month was 47.7915 g/m2/month, the biomass formed was 14.9669 g/m2 and the P/B ratio was 3.1931.
Community Structure on Seagrass Fish Resources at Pandaratan Beach, North Sumatra : Struktur Komunitas Sumberdaya Ikan Padang Lamun di Pantai Pandaratan, Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara Ahyar Pulungan; Huwilda Inrika; Amanatul Fadhilah
Tropical Fisheries Management Journal Vol 4 No 1 (2020): Jurnal Pengelolaan Perikanan Tropis
Publisher : Departement of Aquatic Resources Management, Faculty of Fisheries and Marine Sciences, IPB University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29244/jppt.v4i1.30909

Abstract

Seagrass beds are potential marine resources to be utilized, and ecologically, seagrass beds are some of the important functions of the coastal area. Many organisms are ecologically and biologically very dependent on the presence of seagrasses. The ecosystem is an important food source for the organism by many sea organisms that use it as a spawning place. This study aims to determine the diversity of fish in seagrass beds in Padaratan Beach, Sarudik Subdistrict, Central Tapanuli Regency. A gillnet is used to obtain fish samples at three observation stations during the period from mid-March to April 2018. Fish diversity can be agreed by looking at the composition of fish species and diversity index. The results of this study show the total number of fish obtained, 196 individuals, consisting of 12 families and 14 species. The highest number of fish catches is at Station II with a total catch of 70 individuals. The highest relative abundance of stations I, II, and III with values ​​of 22.96%, 20.01%, and 23.07% are found in fish species from the family Hemaramphidae with Zenarchopterus gilli species. The diversity index value (H') of all observation stations shows that species richness is in a moderate condition with values ​​of the station I (2,339), station II (2,439) and station III (2,367). While the uniformity value (e), shows the value of station I (0.866) station II (0.924) and station III (0.897) observations are in a stable condition (0.75 <e d ”1.00). Such conditions indicate that the distribution at each observation station is equitable.
PARAMETER POPULASI DAN RASIO POTENSI PEMIJAHAN IKAN TONGKOL KOMO (Euthynnus affinis, Cantor 1849) DI LAUT JAWA SEBELAH UTARA JAWA TIMUR Ahyar Pulungan; Mohammad Mukhlis Kamal; Zairion Zairion
Jurnal Penelitian Perikanan Indonesia Vol 28, No 3 (2022): (September) 2022
Publisher : Pusat Riset Perikanan, BRSDM KP.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15578/jppi.28.3.2022.%p

Abstract

Ikan tongkol komo (Euthynnus affinis) merupakan salah satu komoditas ekonomis penting yang tertangkap di perairan Laut Jawa sebelah utara Jawa Timur. Tingkat pemanfaatan ikan tongkol komo terus meningkat sehingga perlu dikelola dengan baik untuk keberlanjutannya agar tidak mengalami penurunan stok. Tujuan penelitian ini untuk mengevaluasi status sumberdaya ikan tongkol komo dengan mengestimasi parameter populasi dan rasio potensi pemijahan dengan pendekatan ukuran panjang ikan, digunakan sebagai titik acuan biologis dalam menentukan kondisi stok ikan. Sebanyak 1995 data ukuran panjang ikan yang dikumpulkan secara acak selama bulan Februari hingga Juni 2021 di Pasongsongan, Jawa Timur. Metode ELEFAN digunakan untuk menentukan parameter populasi yaitu pertumbuhan, kematian, dan laju pemanfaatan. Analisis rasio potensi pemijahan dilakukan dengan menggunakan parameter populasi, dan parameter biologi yang didapatkan dari hasil penelitian sebelummnya dengan paket LB-SPR. Hasil analisis pertumbuhan von Bertalanffy ikan tongkol komo dari penelitian ini diperoleh persamaan Lt= 60,9 (1-e-0,41(t-0,19)). Rata-rata tongkol komo yang tertangkap belum matang gonad (Lc<Lm), tekanan penangkapan dalam kategori tinggi dan rekrutmen dalam stok terganggu. Hal ini terlihat bahwa rasio mortalitas penangkapan relatif (F/M) = 2,51, laju eksploitasi (E) = 0,71, dan SPR = 20%. Oleh sebab itu diperlukan penyusunan pengelolaan yang efektif untuk keberlanjutan stok ikan tongkol komo.Kawakawa (Euthynnus affinis) is one of the important economic commodities caught in the sea waters north of East Java. The utilization rate of kawakawa is quite high, so it is necessary to regulate the sustainability of kawakawa stock to maintain it. This study aimed to evaluate the status of kawakawa fish resources by estimating population parameters and spawning potential ratio (SPR) with a fish length approach, used as a biological reference point in determining fish stock conditions. 1995 data on the length of fish were collected randomly from February to June 2021 in Pasongsongan, East Java. The ELEFFAN method was used to determine population parameters: growth, mortality, and utilization rate. SPR analysis was carried out using population and biological parameters obtained from previous studies with the LB-SPR package. The results of von Bertalanffy's growth analysis for kawakawa from this study were written with the equation Lt= 60.9 (1-e-0.41(t-0.19)). The average kawakawa caught was immature gonads (Lc<Lm), fishing pressure was also still high, and recruitment in stock was disrupted. It can be seen that the relative fishing mortality ratio (F/M) = 2.51, exploitation rate (E) = 0.71, and SPR = 20%. Therefore, it is necessary to develop effective management for the sustainability of kawakawa stocks.
Status dan sebaran mangrove di kawasan konservasi Taman Pulau Kecil, Kabupaten Tapanuli Tengah, Provinsi Sumatera Utara Ahmad Muhtadi; Zulham Apandy Harahap; Ahyar Pulungan; Nurmatias Nurmatias; Pardamean Lubis; Zufriwandi Siregar; Rudolf Y. Ompusunggu; Fauzan Aulia
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 | Full PDF (863.191 KB) | DOI: 10.13170/depik.9.2.15065

Abstract

Mangroves are an important part of determining conservation areas as well as determining zoning within conservation areas. Therefore, information on the status and distribution of mangroves is essential in managing conservation areas. This study was conducted in Taman Pulau Kecil, Central Tapanuli District. The data was collected in June 2019. The sampling sites consisted 26 points (1-15 at the Mursala Island and its surroundings and 16-27 in the Tapian nauli Bay (maindland)). The study revealed 17 mangrove species from 9 families consisted of 14 true mangroves and 3 associated mangroves namely pandan (Pandanus tectorius), waru (Thespesia populnea), and ketapang (Terminalia catappa). Analysis of the importance of mangrove species in Taman Pulau Kecil, Central Tapanuli district showed that Rizophora, Xilocarpus, and Bruguiera have a large influence and role in the mangrove vegetation community. Mangroves in conservation area at Taman Pulau Kecil were in the good category. However, the condition and status of mangroves in Tapian Nauli Bay had better condition with the density of 3.120 ind/ha while in Mursala  Island and its surroundings with density of 2.356 ind/ha.Keywords: Mangrove, Marine Protected area, Mursala Island, Tapian Nauli BayABSTRAKMangrove merupakan salah satu ekosistem penting dalam penentuan kawasan konservasi serta dalam penentuan zonasi di dalam kawasan konservasi. Oleh karena itu, informasi status dan sebaran mangrove penting dalam upaya pengelolaan kawasan konservasi. Lokasi pengambilan data mangrove di kawasan konservasi daerah Taman Pulau Kecil Kabupaten Tapanuli Tengah. Pengambilan data dilakukan pada bulan Juni 2019. Lokasi pengambilan data pada 26 titik pengamatan yang terdiri dari titik 1-15 di Pulau Mursala dan sekitarnya dan titik 16-27 di Teluk Tapaian Nauli (pulau sumatera). Hasil penelitian ditemukan 17 spesies mangrove dari 9 famili. Jenis mangrove tersebut terdiri dari 14 mangrove sejati dan 3 mangrove ikutan yaitu pandan (P. tectorius), waru laut (Thespesia populnea), dan ketapang (Terminalia catappa). Analisis nilai penting jenis mangrove di KKPD Taman Pulau Kecil Tapanuli Tengah menunjukkan bahwa Rizophora, Xilocarpus, dan Bruguiera memiliki pengaruh dan peran yang besar dalam komunitas vegetasi mangrove. Mangrove di KKPD Taman Pulau Kecil Tapanuli Tengah termasuk kategori baik. Namun kondisi dan status mangrove di Teluk Tapian Nauli lebih baik dengan kerapatan rata-rata 3,120 ind/ha dibanding di Pulau Mursala dan sekitarnya dengan kerapatan rata-rata 2,356 ind/ha.Kata kunci: Mangrove, Kawasan konservasi perairan, Pulau Mursala, Teluk Tapian Nauli
Keragaman Makroinvertebrata Sebagai Bioindikator Status Mutu Sungai Percut, Provinsi Sumatera Utara: Keragaman Makroinvertebrata Sebagai Bioindikator Status Mutu Sungai Muhtadi, Ahmad; Varanth, Sree Viknes; Yusni, Eri; Susetya, Ipanna Enggar; Pulungan, Ahyar; Mukra, Rizal
AQUACOASTMARINE: Journal of Aquatic and Fisheries Sciences Vol. 4 No. 2 (2025): AQUACOSTMARINE: Journal of Aquatic and Fisheries Sciences
Publisher : Talenta Publisher

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32734/jafs.v4i2.22397

Abstract

Makroinvertebrata dapat digunakan sebagai bioindikator karena hidup menempel pada substrat dan memiliki mobilitas yang rendah sehingga tidak mudah bergerak. Sebagian makroinvertebrata sangat sensitif terhadap perubahan lingkungan, sehingga spesies yang ditemukan di perairan dapat dianalisis untuk memberikan gambaran tentang keadaan perairan tersebut. Penelitian ini bertujuan untuk mengetahui dan menentukan status kesehatan kualitas air sungai percut, Provinsi Sumatera Utara. Penelitian dilakukan pada bulan Juli 2024 di sepanjang Daerah Aliran Sungai Percut, Sumatera Utara. Lokasi pengambilan sampel dilakukan pada 21 stasiun, yang mewakili bagian hulu, tengah, dan hilir serta anak-anak sungainya. Metode yang dapat digunakan untuk menilai kualitas perairan dengan menggunakan perhitungan indeks biotik yaitu SingScore. komunitas makroinvertebrata yang ada di Sepanjang Daerah Aliran Sungai Percut ditemukan 41 spesies dan 30 famili. Keanekaragaman tertinggi terdapat pada stasiun 11 dengan nilai 2,94 dan terendah terdapat pada stasiun 2 dengan nilai 0. Sebaran spasial makroinvertebrata yang terdapat di Daerah Aliran Sungai Percut pada bagian hulu yaitu terdapat 23 family dengan 31 spesies makroinvertebrata. Pada bagian Tengah Sungai Percut ditemukan 8 family dengan 9 spesies makroinvertebrata. Pada bagian Hilir ditemukan 10 family dengan 10 spesies makroinvertebrata. Status kualitas perairan di aliran Sungai Percut berdasarkan metode SingScore pada bagian hulu memiliki kategori Sangat Baik dan bagian tengah hingga hilir sungai Percut memiliki kategori kategori buruk
The effect of the color of the rearing container on the growth and survival of tambaqui (Colossoma macropomum) Fikri, Andrian; Febri, Suri Purnama; Komariyah, Siti; Maulida, Cici; Aprita, Ika Rezvani; Nazlia, Suraiya; Setyawan, Febby Hadi; Pulungan, Ahyar; Widya, Devita Aristya Sri
Jurnal Perikanan Terpadu Vol 6, No 2 (2025): Jurnal Perikanan Terpadu Volume 6 Nomor 2
Publisher : Universitas Teuku Umar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35308/jpterpadu.v6i2.13502

Abstract

Tambaqui (Colossoma macropomum) is a commodity with high economic value because it is a consumption fish. The purpose of this study was to analyze the effect of different colors of rearing containers on the growth and survival of freshwater pomfret fry. The method used in this study was an experimental method with 4 treatments repeated 3 times. In each treatment, a different color was given: P1 = transparent (control), P2 = black, P3 = blue, P4 = green. The results of these treatments significantly affected absolute weight growth, absolute length growth, and daily growth rate. Meanwhile, the survival rate and feed conversion ratio did not have a significant difference. The highest absolute weight growth was found in P3 at 13,67g, while the lowest absolute weight growth was found in P1 at 8,75g. The highest absolute length growth was found in P3 at 3,49cm, while the lowest absolute length growth was found in P1 at 2,39cm. Meanwhile, the highest daily growth rate was found in P3 at 34,18g, while the lowest daily growth rate was found in P1 at 21,88g. From the results of providing different container colors in the maintenance container, the brighter the color used, the better the resulting growth is categorized
Ecological Role of Siombak Lake as a Nursery and Feeding Ground for Aquatic Species in the Belawan Estuary, Indonesia Muhtadi, Ahmad; Pulungan, Ahyar; Mukra, Rizal
LIMNOTEK Perairan Darat Tropis di Indonesia Vol. 31 No. 2 (2025)
Publisher : BRIN Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/limnotek.2025.9340

Abstract

Tidal lake is a coastal lake whose water condition is influenced by the dynamics of tides. This lake serves as a habitat for a diverse array of aquatic biota, including freshwater, brackish, and marine species. This study aims to describe the distribution of larvae, juveniles, crustacea, and adult fish in the context of the coastal lake's role as a nursery and feeding ground. The study was conducted from September 2018 to August 2019, at Lake Siombak, a coastal lake located in the Belawan River estuary along the northern coast of Medan City, Indonesia. Data were collected at high and low tides during the full moon. Larva and juvenile fish? sampling used larval nets with a mesh size of 300 μm and a diameter of 60 cm, while adult fish were caught with gill nets with a mesh size of 1 inch and a dimension of 10 × 2 m. Crustaceans were captured with traps. The research found nine families consisting of six fish families, two crustacean family, and one cnidarian family. The abundance of larvae and juveniles found was 17 to 1797 individuals per 100 m-3. At the high tides, the composition of Ulmaridae (jellyfish: Aurelia aurita) that was caught reached 57.7%. While at low tides, there were more Penaeid families in the Mysis phase, reaching 78.6%. The abundance of Mysis (Penaeid) and jellyfish indicates that the lake serves as a nursery ground for post larvae crustaceans and jellyfish. The presence of adult fish migrating from the sea and Belawan River indicates that the lake functions as a feeding ground in the Belawan estuary.  Therefore, Lake Siombak still plays a crucial role as a nursery and feeding ground for fish, crustaceans, and jellyfish originating from the Belawan River estuary and its surrounding areas. Preserving the sustainability of this lake is crucial to ensuring the continued productivity of fisheries in the Belawan River estuary.
PENGARUH DOSIS ALKALINITAS TERHADAP KINERJA PERTUMBUHAN UDANG WINDU (Penaeus monodon) YANG DI PELIHARA PADA SUHU 33 0 C Kamal, Mustafa; Febri, Suri Purnama; Haser, Teuku Fadlon; Safir, Muhammad; Pulungan, Ahyar; Widya, Devita Aritya Sri; Afriani, Sari
Jurnal Agroqua: Media Informasi Agronomi dan Budidaya Perairan Vol 23 No 2 (2025): Jurnal Agroqua
Publisher : University of Prof. Dr. Hazairin, SH

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32663/ja.v23i2.5249

Abstract

Tiger prawns are a marine commodity that has high economic value in Indonesia and abroad. This research aims to determine the right time for administering dolomite lime solution to increase tiger prawn growth. This research used an experimental method with 4 treatments and 3 repetitions. The treatments tested were P1 (giving a dolomite lime solution on day 0 before stocking), P2 (giving a dolomite lime solution on the 15 day after stocking), P3 (giving a dolomite lime solution on the 30th day after stocking), and P4 (giving dolomite lime solution on the 30 day after stocking). administration of dolomite lime solution on the 45 day after stocking). The results of the research showed that administration of dolomite lime solution had an effect on absolute length growth, absolute weight growth and daily growth rate. Meanwhile, survival and feed conversion ratios did not have significant differences, neither did water quality. In general, water quality is not affected by the treatment given. The highest absolute length growth was produced at P3 at 4.1 cm. The highest absolute weight growth was obtained in treatment P3 with a result of 1.28 g, while the lowest absolute weight growth was obtained in treatment P4 at 1.13 g. The highest daily growth rate was produced in treatment P3, namely 6.14%, while the lowest daily growth rate was produced in P2, namely 5.28%.