Biology and dynamics of the reproduction of blue-eye trevalla , Hyperoglyphe antarctica ICentrolophidae ) , off Tasmania , southern Australia
Biology and dynamics of the reproduction of blue-eye trevalla , Hyperoglyphe antarctica ICentrolophidae ) , off Tasmania , southern Australia
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澳大利亚南部塔斯马尼亚近海蓝眼鲹 (Hyperoglyphe antarctica ICentrolophidae) 繁殖的生物学和动力学
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发表时间：
2008
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通讯作者：
P. Baelde
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作者：
P. Baelde
海洋资源司，第一产业和渔业部Nubeena新月，Taroona，塔斯马尼亚7053，澳大利亚蓝眼trevalla，Hyperoglyphe anastritica ICentrolophidae），塔斯马尼亚，澳大利亚南部的繁殖生物学和动力学摘要。蓝眼特雷瓦拉的繁殖。通过性腺成熟的分析，对澳大利亚南部的澳洲曼原虫（H.vperogl.vphe anastritica）进行了详细的研究。产卵地点和季节，成熟时的大小。繁殖力和产卵频率。结果表明，蓝眼雀鲷的生殖力是有限的，它具有很高的年生殖力，并随着雌性的长度呈指数增长（最高约1100万个卵母细胞）。雌性是部分产卵者，可能会将所有的卵母细胞产卵3或4个大批次，批次的大小随着雌性的长度而增加。两种性别达到性成熟的大尺寸，71.3和61.6 em叉长的女性和男性，分别。一个主要的产卵场被确定在塔斯马尼亚岛，蓝眼特雷瓦拉聚集从10月到5月。较小的鱼加入聚集第一，在性腺成熟的早期阶段，而较大的鱼出现后加入聚集。就在产卵之前产卵发生在夏末秋初（3月初至5月初）。
Marine Resources Division, Department of Primary Industry and Fisheries Nubeena Crescent, Taroona, Tasmania 7053, Australia Biology and dynamics of the reproduction of blue-eye trevalla, Hyperoglyphe antarctica ICentrolophidae), off Tasmania, southern Australia Abstract.-The reproduction of blue-eye trevalla. H.vperogl.vphe antarctica, otTTasmania, southern AustraIia, is studied in detail through analysis of gonad maturation. spawning location and season, size at maturity. fecundity. and spawning frequency. Results show that the fecundity of blue-eye trevalla is determinate, and it has a high annual fecundity which increases exponentially with the length of females (to a maximum of about 11 million oocytes). Females are partial spawners and possibly spawn all their oocytes in 3 or 4 large batches, the size of batches increasing with the length of females. Both sexes reach sexual maturity at large sizes, 71.3 and 61.6 em fork length for females and males, respectively. One major spawning ground was identified off Tasmania where blue-eye trevalla aggregate from October to May. Smaller fish join the aggregation first, at early stages of gonad maturation, whereas larger fish appear to join the aggregation later. just prior to spawning. Spawning takes place at the end of summer-autumn (early March to early Mayl.