Hubungan sebaran suhu permukaan laut dan klorofil-a dengan hasil tangkapan ikan cakalang di daerah fishing ground bagian barat pulau Halmahera

Supyan, Supyan; Susanto, Adi Noman; Malik, Fikri Rizky

doi:10.33387/jikk.v3i1.1864

Cited by 3 publications

(2 citation statements)

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“…Hasil penelitian yang dilakukan oleh Adnan (2008) dan (Kasim et al, 2014) menunjukkan pengaruh nyata kandungan klorofil-a terhadap jumlah produksi tangkapan ikan layang (Decapterus russelli) di perairan Laut Jawa (p<0,05; r=0,56). Penelitian-penelitian lain yang dilakukan di perairan Halmahera dan Pelabuhan Ratu juga mengkonfirmasi temuan ini untuk beberapa jenis ikan pelagis lainnya seperti cakalang (Katsuwonus pelamis), tuna (Euthynnus sp), dan teri (Stelesphorus sp) (Ekaputra et al, 2020;Hastuti et al, 2021;Supyan et al, 2020).…”

Section: Produktivitas Primer Bersih (Net Primary Productivity)unclassified

Pemanfaatan Citra Satelit Aqua-MODIS untuk Pemantauan Dinamika Spasio-Temporal Produktivitas Primer Bersih di Perairan Laut Jawa

Anugrah,

Hidayah,

As-Syakur

et al. 2023

J. Kel. Trop.

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The Java Sea is an area with the highest rate of exploitation of fishery resources in Indonesia. As much as 32% of the total national fishery production or 2.2 million tons has come from catches in the Java Sea, even though the area of these waters only covers 7% of the total area of national waters. Fisheries productivity is related to the net primary productivity value resulting from the activity of phytoplankton or chlorophyll-a. Net primary productivity (NPP) is influenced by the presence of nutrients, light, chlorophyll-a, Photosynthetically Available Radiation (PAR) and sea surface temperature (SST). The purpose of this research is to analyze the distribution value of net primary productivity in the Java Sea by utilizing Aqua-MODIS satellite imagery using the Vertically Generalized Production Model (VGPM) method with a range of 2017-2021. The results showed that the waters of the Java Sea have quite high fertility and are classified as Eutrophic because the general monthly average from 2017-2021 has an NPP value of >750 mgC/m2/day. The value of primary productivity follows the seasonal pattern, will be high in the east moonson season and decrease in the west monsoon season. Laut Jawa merupakan wilayah dengan laju eksploitasi sumberdaya perikanan tertinggi di Indonesia. Sebanyak 32% dari total produksi perikanan nasional atau sebesar 2,2 juta ton berasal dari hasil tangkapan di Laut Jawa meskipun luas wilayah perairan ini hanya mencakup 7% dari total luas wilayah perairan nasional. Produktivitas perikanan tangkap berhubungan dengan nilai produktivitas primer bersih hasil dari aktivitas fitoplankton atau klorofil-a. Produktivitas primer bersih di suatu perairan dipengaruhi oleh adanya unsur hara, cahaya, klorofil-a, Photosynthetically Available Radiation (PAR) dan suhu permukaan laut (SPL). Tujuan dari penelitian ini adalah untuk menganalisis nilai distribusi produktivitas primer bersih di Laut Jawa dengan memanfaatkan citra satelit Aqua-MODIS menggunakan metode Vertically Generalized Production Model (VGPM) dengan rentang tahun 2017-2021. Hasil penelitian menunjukkan bahwa perairan Laut Jawa memiliki kesuburan yang cukup tinggi dan tergolong Eutrofik karena rata-rata bulanan secara umum mulai dari tahun 2017-2021 memiliki nilai NPP >750 mgC/m2/hari. Nilai produktivitas primer mengikuti pola musim, akan tinggi pada musim timur (kemarau) dan menurun pada musim barat (penghujan).

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Section: Produktivitas Primer Bersih (Net Primary Productivity)unclassified

Pemanfaatan Citra Satelit Aqua-MODIS untuk Pemantauan Dinamika Spasio-Temporal Produktivitas Primer Bersih di Perairan Laut Jawa

Anugrah,

Hidayah,

As-Syakur

et al. 2023

J. Kel. Trop.

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“…iklim, alat tangkap yang digunakan, musim penangkapan, serta kebijakan pengelolaan sumber daya perikanan (Hariati et al, 2009;Wujdi & Suwarso, 2014;Taib et al, 2018;Supyan et al, 2020).…”

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Analisis Hasil Tangkapan Ikan Tongkol Yang Didaratkan Di Pelabuhan Perikanan Nusantara Ambon

Siringoringo,

Tupamahu,

Tawari

2024

AJTMPT

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This research aims to analyze the catches of tuna landed at the Ambon Nusantara Fisheries Port. The research was conducted for two months, from January to February 2023, using descriptive methods. Primary data was collected through direct observation and interviews with fishermen and port officers, while secondary data was obtained from PPN Ambon. The results of this research show that the catch was landed by four fishing fleets, namely purse seines, gill nets, fish trawls and lines fishing. The total catch landed during the 2012-2021 period was 510,203 tons, which was dominated by Auxis thazard. Purse seines are the most dominant fishing gear used, contributing 52.1% of the total catch with a total fishing effort of 597 trips. The productivity of the fishing fleet fluctuates from year to year, the lowest productivity for Euthynnus affinis occurred in 2018 and the highest in 2013, while the lowest productivity forl Auxis thazard occurred in 2017 and the highest in 2018. Fluctuating and low productivity indicates the existence of potential for overfishing. This research suggests the need for further analysis regarding the potential and level of utilization of the two species of frigate tuna landed in PPN Ambon

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Structure community of mudskipper at Coast of Bahak Indah, Tongas, Probolinggo – East Java

Maghfirah¹,

Latuconsina²,

Prasetyo³

2023

Akuatikisle: J. Aqua. Coast. & Isle

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Mangrove forest is one of the ecosystems in the coastal area that plays an important role as a habitat for iktiofauna, one of which is the gelodok fish community. The purpose of this study was to compare the community structure of mudskippers at Bahak Indah Coast, Tongas, Probolinggo with or without mangrove vegetation. The study was conducted in January–February 2022. The determination of the observation station was carried out purposively, which was determined based on the presence or absence of mangrove vegetation. Observation of the mudskipper community used a systematic sampling method with the help of transects and plots. The analyzed mudskipper community structure data included diversity index, uniformity index and dominance index. The results found 4 species from 2 genera of mudskipper namely Boleophthalmus pectinirostris, Boleophthalmus boddarti, Periophthalmus chrysospilos and Periophthalmodon schlosseri. Mudskipper diversity index at both stations was in the medium category, and was higher at the stations with mangrove vegetation. The uniformity index was included in the high category, and was higher at the stations with mangrove vegetation, and the dominance index was in the low category, and lower at the stations with mangrove vegetation. The results of this study indicate that the coastal waters area with mangrove vegetation contributes to the high diversity and uniformity of the mudskipper community compared to areas without mangrove vegetation.

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Hubungan sebaran suhu permukaan laut dan klorofil-a dengan hasil tangkapan ikan cakalang di daerah fishing ground bagian barat pulau Halmahera

Cited by 3 publications

References 0 publications

Pemanfaatan Citra Satelit Aqua-MODIS untuk Pemantauan Dinamika Spasio-Temporal Produktivitas Primer Bersih di Perairan Laut Jawa

Pemanfaatan Citra Satelit Aqua-MODIS untuk Pemantauan Dinamika Spasio-Temporal Produktivitas Primer Bersih di Perairan Laut Jawa

Analisis Hasil Tangkapan Ikan Tongkol Yang Didaratkan Di Pelabuhan Perikanan Nusantara Ambon

Structure community of mudskipper at Coast of Bahak Indah, Tongas, Probolinggo – East Java

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