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Length–weight relationships and condition factor of the Japanese silver‐biddy, Gerres equulus , in the Yatsushiro Sea, western Kyushu, Japan
Author(s) -
Iqbal K. M.,
Suzuki H.
Publication year - 2009
Publication title -
journal of applied ichthyology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.392
H-Index - 62
eISSN - 1439-0426
pISSN - 0175-8659
DOI - 10.1111/j.1439-0426.2008.01207.x
Subject(s) - biology , allometry , shore , fishery , zoology , veterinary medicine , ecology , medicine
Summary The Japanese silver‐biddy Gerres equulus (Temminck and Schlegel) is one of the most common shore fishes in the costal waters of southern Japan and commercially important for the local fishery. In this study the condition factor, length–weight (LWR) and length–length relationships (LLR) of G. equulus are described for the first time. A total of 1121 specimens (511 males; 620 females) were collected using gill nets in the Yatsushiro Sea, western Kyushu, Japan. The overall allometric coefficient b of LWR was close to the isometric values ( b = 3.088). Fulton’s condition factor showed high values at the beginning of the spawning season (June–September) and peaking 2 months after the spawning season.