Postlarvae and juveniles of silver sea bream,Sparus sarba occurring in the surf zones of Tosa Bay, Japan
Postlarvae and juveniles of silver sea bream,Sparus sarba occurring in the surf zones of Tosa Bay, Japan
复制标题
日本土佐湾冲浪区的银鲷 (Sparus sarba) 的后期幼体和幼体
DOI:
10.1007/bf02905553
复制
发表时间:
1986
期刊:
影响因子:
--
通讯作者:
I. Kinoshita
中科院分区:
文献类型:
--
作者:
I. Kinoshita
A total of 515 larval and juvenile Sparus sarba (8.2-17.8 mm TL) was collected at semi monthly intervals with a small seine in surf zones of Tosa Bay during the period of May 1981 to May 1982. They had morphological characteristics common to the larvae and juvenile of Spar inae, but were distinguished from the others by 24 dorsal and 14 anal fin rays, the first soft ray of pelvic fin not elongated and small melanophores along the dorsal margin occurring first on the caudal peduncle. They occurred in surf zones of Tosa Bay in two separate seasons, from late March to late May, and from late November to late January, being most abundant in April and May. In past studies using traditional larval nets or minnow-nets in coastal or shallow waters of Tosa Bay, larval and juvenile S. sarba were not reported. It seems that their distribu tion is limited in extremely shallow waters such as surf zones.The silver sea bream, Sparus sarba (Temminck et Schlegel)(Sparinae, Sparidae) is important both to commercial and sport fishing in southern Japan. Tasting better than the black sea bream Acanthopagrus schlegeli, this is considered to be a promising fish for fish farming (Akazaki, 1962; Masuda et al., 1980; Tsukashima and Kitajima, 1982). However, little is known about the ecology and early life history of this fish. Fragmental morphological reports were made on eggs by Kamiya (1925) and Mito (1963), on prelarvae by Kamiya (1925), Mito (1963) and Suzuki and Hioki (1979), on young by Kishinouye (1916), and on rearing from eggs to prejuvenile by Tsu kashima and Kitajima (1982). Recently it was found that larvae and juveniles of S. sarba as well as those of Acanthopagurs schlegeli and A. latus, occurred abundantly in surf zones of western Kyushu and Tosa Bay (Senta and Kinoshita, 1985). The morphological char acteristics of postlarva to prejuvenile of S. sarba and their seasonal occurrence in the surf zones facing Tosa Bay were presented in this paper.