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Journal : JFMR (Journal of Fisheries and Marine Research)

MORFOMETRIK DAN PARAMETER PERTUMBUHAN IKAN “NIKE” DI MUARA BONE DAN PAGUYAMAN GORONTALO: MORPHOMETRIC AND GROWTH PARAMETERS OF “NIKE” FISH IN BONE AND PAGUYAMAN ESTUARIES GORONTALO Olii, Abdul Hafidz; Kadim, Miftahul Khair; Pasisingi, Nuralim
JFMR (Journal of Fisheries and Marine Research) Vol. 7 No. 3 (2023): JFMR on November
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2023.007.03.5

Abstract

Dua muara utama lokasi kemunculan ikan nike di Perairan Gorontalo adalah Muara Bone dan Muara Paguyaman yang secara administratif masing-masing terletak di Kota Gorontalo dan Kabupaten Boalemo, Provinsi Gorontalo. Tujuan penelitian ini adalah membandingkan karakter morfometrik serta menentukan sebaran frekuensi panjang, pola pertumbuhan, dan faktor kondisi ikan nike yang ditemukan di Muara Bone dan Muara Paguyaman. Total sampel secara random sebanyak 700 hingga 2275 ekor dikumpulkan dari perairan dengan menggunakan tagahu dalam dua musim penangkapan, yaitu Juli dan September 2021. Sampel diawetkan dengan menggunakan es batu dan segera dilakukan pengukuran panjang total, panjang standar, tinggi badan, lebar badan, diameter mata, diameter kepala, dan bobot tubuh. Hasil penelitian selama dua musim penangkapan menunjukkan bahwa ukuran morfometrik ikan nike di Muara Paguyaman relatif lebih besar dibandingkan dengan nike yang ditemukan di Muara Bone. Sebaran frekuensi panjang nike per hari kemunculan mengindikasikan schooling nike yang ditemukan pada setiap musim penangkapan tersusun dari populasi multi kohort. Pola pertumbuhan nike selama penelitian adalah alometrik positif dan alometrik negatif. Adapun kisaran nilai faktor kondisi rata-rata ikan nike di Muara Bone dan Paguyaman masing-masing adalah 0,970-1,044 dan 0,888-1,431.The two main water areas in Gorontalo for the emergence of nike fish are Bone and Paguyaman Estuaries. Each ecosystem is administratively located separated in Gorontalo City and Boalemo Regency, Gorontalo Province. The research aimed to compare the morphometric characters and to determine the distribution of length frequencies, growth patterns, and condition factors of the nike found in those estuaries. A total random sample of 700 to 2275 individuals were caught from the waters using tagahu during fishing seasons, July and September 2021. The samples were preserved using ice cubes and immediately measured for total length, standard length, body height, body width, eye diameter, head diameter, and body weight. The data showed that the morphometric size of the nike in the Paguyaman Estuary was relatively larger compared to those found in the Bone Estuary. The length frequency distribution per day of nike appearance indicates that schooling from each season was composed of a multi-cohort population. Nike's growth pattern during the study was positive allometric and negative allometric. The range of condition factor values for the average nike fish in Muara Bone and Paguyaman were 0.97 – 1.044 and 0.888 – 1.431, respectively.
Indeks Trofik-Saprobik pada Bivalvia Sebagai Indikator Status Pencemaran di Perairan Pesisir Desa Lamu, Kabupaten Gorontalo: Trophic-Saprobic Index Based on Bivalves Diversity as an Indicator of Pollution Status in the Coastal Waters of Lamu Village, Gorontalo Regency Wonopati, Cindy Trisnawaty; Kadim, Miftahul Khair; Panigoro, Citra; Kasim, Faizal; Pasisingi, Nuralim
JFMR (Journal of Fisheries and Marine Research) Vol. 8 No. 3 (2024): JFMR on November
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2024.008.03.7

Abstract

Perairan Pantai Desa Lamu merupakan salah satu pantai potensial di Teluk Tomini karena memiliki keanekaragaman hayati penting. Aktifitas antropogenik disekitar perairan pantai berpotensi memberikan dampak pencemaran kualitas air. Penelitian ini bertujuan untuk menilai status pencemaran di Perairan Pesisir Desa Lamu Kabupaten Gorontalo menggunakan indeks trofik-saprobik berdasarkan keanekaragaman bivalvia. Penelitian dilakukan pada bulan Februari-Mei 2024. Penelitian ini menggunakan metode purposive random sampling dengan menggunakan kuadran yang berukuran 1×1 meter. Hasil penelitian menunjukkan bahwa sebanyak 16 spesies bivalvia yang mewakili 12 famili ditemukan di lokasi penelitian, dimana Caloarca tenella menjadi spesies yang paling melimpah. Berdasarkan keanekaragaman Bivalvia yang ditemukan, spesies penyusun saprobik tersusun atas 3 kelompok yaitu Polisaprobik, ꞵ Mesosaprobik, dan Oligosaprobik. Nilai SI berkisar antara -0,50 hingga 1,36 dan TSI berkisar antara 1 hingga 1,96 yang menunjukkan bahwa perairan Desa Lamu berada pada kondisi tercemar ringan sampai berat.   The coastal waters of Lamu Village represent one of the potential beaches in Tomini Bay due to their significant biodiversity. Anthropogenic activities in the surrounding coastal areas have the potential to impact water quality through pollution. This study aims to assess the pollution status in the coastal waters of Lamu Village, Gorontalo Regency, using the trophic-saprobic index based on bivalves diversity. The research was conducted from February to May 2024. The study employed a purposive random sampling method using 1×1 meter quadrants. The results showed that 16 bivalvia species representing 12 families were found at the research site, with Caloarca tenella being the most abundant species. Based on the bivalves diversity found, the saprobic species were composed of 3 groups: Polysaprobic, ꞵ Mesosaprobic, and Oligosaprobic. The SI values ranged from -0.50 to 1.36, and TSI values ranged from 1 to 1.96, indicating that the waters of Lamu Village are in a state of light to severe pollution.
STATUS MUTU PERAIRAN TELUK GORONTALO DENGAN MENGGUNAKAN METODE POLLUTION INDEX Kadim, Miftahul Khair; Pasisingi, Nuralim
JFMR (Journal of Fisheries and Marine Research) Vol. 2 No. 1 (2018): JFMR
Publisher : Faculty of Fisheries and Marine Science, Brawijaya University, Malang, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.jfmr.2018.002.01.1

Abstract

Water quality is very vital to support the survival of organisms. Determination of water quality status needs to be carried out as a reference for monitoring water pollution of an aquatic system. This study aims to assess the status of water quality in the Gorontalo Bay. There are 5 observation stations selected based on the coastal conditions and ecological characteristics. Sampling of water quality parameters was conducted along the Gorontalo Bay in May to July 2017. Sampling procedure based on APHA standard method. The water quality data are analyzed using Pollution Indeks method. Gorontalo Bay has Pollution Index average score of 4.74. This value shows that the quality status of the Gorontalo Bay is considered as polluted category.