The exploration of trophic structure modeling using mass balance Ecopath model of Tangerang coastal waters

N. N. Dewi, M. Kamal, Y. Wardiatno, Rozi

Research output: Contribution to journalConference articlepeer-review

4 Citations (Scopus)

Abstract

Ecopath model approach was used to describe trophic interaction, energy flows and ecosystem condition of Tangerang coastal waters. This model consists of 42 ecological groups, of which 41 are living groups and one is a detritus group. Trophic levels of these groups vary between 1.0 (for primary producers and detritus) to 4.03 (for tetraodontidae). Groups with trophic levels 2≤TL<3 and 3≤TL<4 have a range of ecotropic efficiency from 0 to 0.9719 and 0 to 0.7520 respectively.The Mean transfer efficiency is 9.43% for phytoplankton and 3.39% for detritus. The Mixed trophic impact analysis indicates that phytoplankton havea positive impact on the majority of pelagic fish, while detritus has a positive impact on the majority of demersal fish. Leiognathidae havea negative impact on phytoplankton, zooplankton and several other groups. System omnivory index for this ecosystem is 0.151. System primary production/respiration (P/R) ratio of Tangerang coastal waters is 1.505. This coastal ecosystem is an immatureecosystem because it hasdegraded. Pedigree index for this model is 0.57. This model describes ecosystem condition affected by overfishing and antropogenic activities. Therefore, through Ecopath model we provide some suggestions about the ecosystem-based fisheries management.

Original languageEnglish
Article number012044
JournalIOP Conference Series: Earth and Environmental Science
Volume137
Issue number1
DOIs
Publication statusPublished - 13 Apr 2018
Event7th ASEAN-FEN International Fisheries Symposium, IFS 2017 - Batu City, East Java, Indonesia
Duration: 7 Nov 20179 Nov 2017

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