Morphology, and Changes of Distribution and Food Habits with Growth, of Late Larvae and Juveniles of Black-spot Tuskfish, Choerodon schoenleinii(Labridae), Settled on Seagrass Beds of Okinawa Island, the Ryukyus.
Morphology, and Changes of Distribution and Food Habits with Growth, of Late Larvae and Juveniles of Black-spot Tuskfish, Choerodon schoenleinii(Labridae), Settled on Seagrass Beds of Okinawa Island, the Ryukyus.
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琉球冲绳岛海草床上黑斑象牙鱼Choerodon schoenleinii（Labridae）的形态、分布和食性随生长的变化。
DOI：
10.2331/suisan.64.427
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发表时间：
1998
期刊：
影响因子：
--
通讯作者：
Kiyoaki Kanashiro
中科院分区：
文献类型：
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作者：
Kiyoaki Kanashiro
1984~1991年在冲绳岛北部对黑斑象牙的早期生活形态和生态进行了研究。7.7mmTL的仔鱼屈曲后侧向压缩，口大，有色稀少。14.9 mm的Tl幼鱼体部变深，头部呈圆形，体上色素形成四条横带。用水肺进行的水下观察和用塞纳河进行的采样显示，从5月到6月，幼鱼在海草床上定居，夏季在那里停留。此后，随着海草的生长，它们逐渐走出了海草床。食物组成由小型甲壳类向大型甲壳类、腹足类、双壳类等多种生物转变，并呈现多样性。
Morphology and ecology in early life stages of black-spot tuskfish were studied in northern part of Okinawa Island from 1984 to 1991.The postflexion larva of 7.7mm TL was laterally compressed with moderately large mouth, being scarce pigmented. In the 14.9mm TL juvenile, the body became deeper with rounded head and pigments forming four transverse bands on the body. Underwater observations with SCUBA and sampling with the seine revealed that juveniles settled on seagrass beds from May to June and stayed there during summer. Thereafter they gradually moved out of seagrass beds with growth. Diet composition changed with growth from small crustaceans to various organisms such as large crustaceans, gastropods, bivalves and so on and were diversified.