Mm. Haque et T. Ozawa, OCCURRENCE AND ABUNDANCE OF LEIOGNATHUS-RIVULATUS (TEMMINCK AND SCHLEGEL) LARVAE IN KAGOSHIMA BAY, SOUTHERN JAPAN, IN 1991, Gyoruigaku Zasshi, 42(2), 1995, pp. 131-136
Temporal and spatial occurrence and abundance of Leiognathus rivulatus
larvae were studied with regular monthly collections at 14 fixed stat
ions in Kagoshima Bay in 1991. A total of 1036 larvae (1.1-5.6 mm SL)
were collected from June to September. They were poorly represented in
the northern part of the bay, but were abundant at most of the coasta
l stations in the southern part. Larval abundance followed a normal di
stribution curve during the season, the peak abundance period, analyze
d statistically on a daily basis, being from 30 June to 3 August. Area
s of larval abundance were determined cruise by cruise using-a method
for calculating geographic centers of larval abundance from stations h
aving a higher-than-average larval density and the two adjacent statio
ns with the highest larval densities. Abundant areas of L. rivulatus l
arvae were found at three coastal locations in the southern part of Ka
goshima Bay.