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Struktur Komunitas Plankton di Perairan Pantai Tanjung Kasuari, Kecamatan Sorong Barat, Kota Sorong Katili, Vicky Rizky; Kasim, Muh
SIGANUS: Journal of Fisheries and Marine Science Vol 3 No 2 (2022): SIGANUS: Journal of Fisheries and Marine Science
Publisher : Universitas Sulawesi Barat

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31605/siganus.v3i2.1509

Abstract

Penelitian ini bertujuan untuk mengetahui struktur komunitas plankton yang meliputi kelimpahan, keanekaragaman, keseragaman, dominansi, kesamaan habitat di Perairan Pantai Tanjung Kasuari. Hasil pengamatan menunjukkan bahwa fitoplankton yang ditemukan terdiri dari 3 kelas yaitu kelas Bacillariophyceae (27 genera), kelas Cyanophyceae (1 genus), dan kelas Dinophyceae (3 genera): zooplankton terdiri dari 7 kelompok yaitu Crustacea (8 genera), Protozoa (8 genera), Rotifera (1 genus), Urochordata (1 genus), larva Gastropoda (1 genus), larva Pelecynoda (1 genus), dan larva Polychaeta (1 genus). Komposisi jenis fitoplankton tertinggi pada setiap stasiun dari kelas Bacillariophyceae yang berkisar antara 81-91 % dan zooplankton dari kelompok Crustacea berkisar antara 31-55 % dari total jenis yang ada. Kelimpahan fitoplankton pada setiap stasiun pengamatan berkisar antara 527-6.991 ind/I dan kelimpahan zooplankton berkisar antara 8-152 ind/l. Jenis fitoplankton selalu ditemukan pada setiap stasiun pengamatan adalah Coscinodiscus, Navicula, Nitzschia, Rhizosolenia, Thalassiothrix, Peridinium. Sedangkan zooplankton selalu ditemukan adalah Calanus, Nauplius, dan Oithona. Nilai indeks keanekaragaman plankton berkisar antara 1.74-2,84 nits/individu, indeks keseragaman berkisar antara 0,53-0,80 dan indeks dominansi berkisar antara 0,08-0,27. A B S T R A C T The present study aimed to determine the structure of the phytoplankton community including abundance, diversity, uniformity, dominance, habitat similarity in Tanjung Kasuari Coastal Waters. The results showed that the phytoplankton found consisted of 3 classes, namely Bacillariophyceae class (27 genera), Cyanophyceae class (1 genus), and Dinophyceae class (3 genera): zooplankton consisted of 7 groups, namely Crustacea (8 genera), Protozoa (8 genera), Rotifera (1 genus), Urochordata (1 genus), Gastropod larvae (1 genus), Pelecynoda larvae (1 genus), and Polychaeta larvae (1 genus). The highest phytoplankton species composition was from the Bacillariophyceae class which ranged from 81-91% and the zooplankton from the Crustacean group ranged from 31-55% of the total species. The abundance of phytoplankton each observation station ranged from 527 to 6,991 ind/I and the abundance of zooplankton ranged from 8-152 ind/l. Types of phytoplankton often found in all observation station are Coscinodiscus, Navicula, Nitzschia, Rhizosolenia, Thalassiotrix, Peridinium. The zooplankton often found, Calanus, Nauplius, and Oithona. The plankton diversity index value ranged from 1.74-2.84 nits/individual, the uniformity index ranged from 0.53-0.80 and the dominance index ranged from 0.08-0.27.
RESOURCES COMPOSITION OF FISH RESULTS ABOUT TRACKING FISH IN WEST PAPUA MALAUMKARTA WATERS poltak, hendra; Sururi, Misbah; Suruwaky, Amir Machmud; Katili, Vicky Rizky; Tjarles, Lay; Ismail, ismail
Jurnal Harpodon Borneo VOLUME 15 NO.1 APRIL 2022
Publisher : Fakultas Perikanan Dan Ilmu Kelautan Universitas Borneo Tarakan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35334/harpodon.v15i1.2507

Abstract

Hand line is a fishing gear consisting of a single string and hook for fishing and is widely used by fishermen in Malaumkarta waters. The purpose of this study is to identify the types of fish resources caught in the waters of Malaumkarta with the Drift Fishing system for resource conservation. The research was conducted 6 (six) times in 3 locations from June to September 2021. The method used was fishing survey using Handline Metal Jig drift system at depths 50 meters and 50 meters. The analysis was carried out quantitatively and qualitatively. The results showed that there were 134 individuals and 20 types of fish caught with a total weight of 126,194 kg. The type of fish that was most often caught was Letrinus sp, while in quantity it was Eumegistus illustris. The catch at three fishing locations showed that at a depth of 50 meters, 17 species were caught, 62 individuals, 104.625 kg with an average weight of 1.69 kg, while at a depth of 50 meters, 11 species were caught, 73 individuals, 22,039 kg with a weight of fish average 301.91 gr. The result of the research is that fish resources are utilized at a depth of 50 meters using a drift fishing system, with a metal jig fishing line.