Jurnal Perikanan Universitas Gadjah Mada
Vol 25, No 1 (2023)

Estimation of Water Carrying Capacity for Floating Net Cage Cultivation Activities in Pekalongan Coastal Waters

Tri Yusufi Mardiana (Department of Aquaculture, Faculty of Fisheries, Pekalongan University, Pekalongan, Central Java, Indonesia)
Heri Ariadi (Department of Aquaculture, Faculty of Fisheries, Pekalongan University, Pekalongan, Central Java, Indonesia)
Linayati Linayati (Department of Aquaculture, Faculty of Fisheries, Pekalongan University, Pekalongan, Central Java, Indonesia)
Wijianto Wijianto (Department of Aquaculture, Faculty of Fisheries, Pekalongan University, Pekalongan, Central Java, Indonesia)
Ashari Fahrurrozi (Department of Aquaculture, Faculty of Fisheries, Pekalongan University, Pekalongan, Central Java, Indonesia)
Maghfiroh Maghfiroh (Department of Batik Technology, Faculty of Engineering, Pekalongan University, Pekalongan, Central Java, Indonesia)



Article Info

Publish Date
04 Apr 2023

Abstract

Floating cage fish farming is an aquaculture activity that is mostly carried out on the coast of Pekalongan. The purpose of this study was to estimate the carrying capacity of Pekalongan coastal waters as a floating net cage aquaculture activity zone. The research method used is descriptive qualitative and quantitative descriptive by calculating the indicators of Trophic Status Index (TSI), phosphorus, feed conversion ratio, and the carrying capacity level of the waters. The results showed that chlorophyll-a values ranged from 6.44-8.24 ê­’g/L, total phosphorus 12.44-14.80 ê­’g/L, feed conversion ratio 1.10-1.25, TSI (Trophic Status Index) values 48.2-54.6, harvested biomass 120-157 kg/ floating net cages (KJA). The carrying capacity of the waters for KJA cultivation is 145.43 tons of fish/year, and the number of existing KJA for cultivation is 110 KJA. The conclusion from the results of this study is that the carrying capacity on Pekalongan coastal waters when used as a floating net cage aquaculture activity zone is estimated to be able to accommodate approximately 145.43 tons of fish/year or the equivalent of 121 KJA. Currently, there are 110 KJA plots in the Jeruksari coastal waters, which means that the maximum carrying capacity of the waters that can be used for KJA cultivation is 11 KJA.

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Journal Info

Abbrev

jfs

Publisher

Subject

Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Immunology & microbiology

Description

Jurnal Perikanan Universitas Gadjah Mada are published to promote a critical review of the various investigative issues of interest in the field of fisheries between the researchers, academics, students and the general public, as a medium for communication, dissemination, and utilization of wider ...