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Reproductive ecology of the mudskipper Boleophthalmus pectinirostris

查看全文 作　　者：HONG [1,2]Wanshu;CHEN [1,2]Shixi;ZHANG [2]Qiyong;WANG [1,2]Qiong 高影响力作者 机构地区：[1]State Key Laboratory of Marine Environmental Science, Xiamen University, Xiamen 361005, China;[2]Department of Oceanography, Xiamen University, Xiamen 361005, China高影响力机构 出　　处：《Acta Oceanologica Sinica》索引2007年第26卷第4期,共10页高影响力期刊 基　　金：This work was supported by the National Natural Science Foundation of China under contract No. 40476056 ;the Key Projects of Science and Technology of Fujian Province of China under contract Nos 2003N026 and 2004SZ01 - 2. 摘　　要：The reproductive ecology of the mudskipper Boleophthalmus pectinirostris was investigated during the spawning season in the Funing Bay, Fujian, China. The fish burrows were basically Y-shaped and had two openings onto the mudflats. Part of the intersection at the center of the burrow was dilated to form a 'spawning chamber'. The dissolved oxygen concentrations (0.40~0.65 mg/dm3)of water 15 cm deep inside the burrows were much lower than those (5.96~6.19 mg/dm3) of intertidal pool water. Water temperatures inside the burrows were much lower than those of intertidal pools. Field investigations indicated that eggs were laid on the inner wall and ceiling of the spawning chamber by means of filamentous attachments, and a male stayed inside the burrows to guard it. Field investigations also suggested that fish of both sexes constructed mud burrows by themselves but that the spawning chamber was made only in the male burrow. The male attracted a female to his burrow for mating and spawning. There was no water in the spawning chamber, and thus the eggs were exposed to the air in the chamber. Changes in spawning readiness and gonadosomatic index indicated that synchronization of spawning was related to the semi-lunar periodicity, and this is the first report of this relationship in the mudskippers. 关 键 词：再生生态学 潜穴鱼 生态环境 海洋环境
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