AUTHOR=Wang Yuanchao , Liang Cui , Wang Yibang , Xian Weiwei , Palomares Maria Lourdes 

TITLE=Stock Status Assessments for 12 Exploited Fishery Species in the Tsushima Warm Current Region, Southwest Japan and East China, Using the CMSY and BSM Methods

JOURNAL=Frontiers in Marine Science

VOLUME=Volume 7 - 2020

YEAR=2020

URL=https://www.frontiersin.org/journals/marine-science/articles/10.3389/fmars.2020.00640

DOI=10.3389/fmars.2020.00640

ISSN=2296-7745

ABSTRACT=<p>This contribution presented stock assessments for 10 fish and 2 squid populations exploited by Chinese, South Korean, and Japanese fishing fleets in the Tsushima Warm Current region, i.e., Southwest Japan and East China. The methods used were a Monte Carlo method (CMSY) and a Bayesian state-space implementation of the Schaefer model (BSM), based on published time series of catch and abundance data (SSB and CPUE). Results showed that 2 fish stocks, Japanese jack mackerel (<italic>Trachurus japonicus</italic>) and yellowback sea-bream (<italic>Dentex hypselosomus</italic>), had a healthy status, while daggertooth pike conger (<italic>Muraenesox cinereus</italic>) appeared to have collapsed. The other 9 stocks showed varying degrees of overfishing. The cooperation of several countries would be required to recover the fishery resources in the Tsushima Warm Current region.</p>