Skip to main content
WCS
Menu
Library
Library Catalog
eJournals & eBooks
WCS Research
Archives
Research Use
Finding Aids
Digital Collections
WCS History
WCS Research
Research Publications
Science Data
Services for WCS Researchers
Archives Shop
Bronx Zoo
Department of Tropical Research
Browse By Product
About Us
FAQs
Intern or Volunteer
Staff
Donate
Search WCS.org
Search
search
Popular Search Terms
WCS History
Library and Archives
Library and Archives Menu
Library
Archives
WCS Research
Archives Shop
About Us
Donate
en
fr
Title
Yield-per-recruit modeling as biological reference points to provide fisheries management of Leopard Coral Grouper (Plectropomus leopardus) in Saleh Bay, West Nusa Tenggara
Author(s)
Agustina, S.;Panggabean, A. S.;Natsir, M.;Retroningtyas, H.;Yulianto, I.
Published
2019
Publisher
IOP Conference Series: Earth and Environmental Science
Published Version DOI
https://doi.org/10.1088/1755-1315/278/1/012005
Abstract
Leopard coral grouper (Plectropomus leopardus) is an important fisheries commodity in Saleh Bay, both ecologically and economically. Continuous exploitation of this species has caused population collapses in some waters due to high fishing pressure. Therefore, it is very important to estimate its population stock. Yield per recruit models usually being used to evaluate population stock also to estimate biological reference point. We estimated life-history parameters using length-based stock assessment, while stock size was estimated by virtual population analysis (VPA), and finally, prediction models was estimated using Beverton & Holt’s yield per recruit model. We used the following variables: growth parameters, fishing mortality, length at first capture, and age at 50% recruitment into the fishery. From these variables we found that the Fcurrent (0.26) is higher than the target reference point (FMSY= 0.24), which confirmed the indication of slight increased exploitation rate (E=0.62). It is shown that the Plectropomus leopardus was overexploited with spawner biomass-per-recruit at 20.6% of pristine levels. The regulation measures to correct the exploitation pattern and to reduce fishing mortality smaller than FMSY including limiting the catch size and control on fishing gear by limiting fishing effort.
Keywords
biological reference;coral grouper;West Nusa Tenggara
Access Full Text
A full-text copy of this article may be available. Please email the
WCS Library
to request.
Back
PUB24637