THE MATING SYSTEM OF XYRICHTHYS NOVACULA - SPERM ECONOMY AND FERTILIZATION SUCCESS
THE MATING SYSTEM OF XYRICHTHYS NOVACULA - SPERM ECONOMY AND FERTILIZATION SUCCESS
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DOI：
10.1111/j.1095-8649.1995.tb01896.x
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发表时间：
1995-08-01
影响因子：
2
通讯作者：
MARIN, G
中科院分区：
文献类型：
--
作者：
MARCONATO, A;TESSARI, V;MARIN, G
我们通过收集来自三个相邻的雄性领地的所有精子和卵子，确定了地中海北部一夫多妻制的Xyrichtys novula雄性的受精率。这些领地包括不同数量的雌性栖息地。两只雄性分别包括四只和六只雌性，释放的精子/产卵平均数量相似，而同时持有两个区域，每六只雌性的雄性释放的精子/产卵显著减少。虽然受精率随着释放的精子绝对数的减少而下降，但由于其领地内的雌性数量较多，后宫最大的雄性受精卵的日总数最高。这些结果表明，男性的精子经济策略与女性的利益相冲突。(C)1995年不列颠群岛渔业协会
We determined the Fertilization rates achieved by males of the polygynous wrasse Xyrichtys novacula in the northern Mediterranean sea, by collecting all sperms and eggs released in individual spawns from three adjacent male territories that encompassed different numbers of female home ranges. Two males with territories including four and six females respectively, released similar average numbers of sperm/spawn, whereas a male holding at the same time two territories with six females each, released significantly fewer sperm/spawn. Although Fertilization rates decreased with absolute numbers of sperm released, the male with the largest harem achieved the highest total daily number of fertilized eggs, as a result of the high number of females in his territory. These results demonstrate a strategy of a male's sperm economy that is in conflict with the female's interests. (C) 1995 The Fisheries Society of the British isles