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首页> 外文期刊>Oceanology >On the Reproductive Biology of the Females of the Shrimp Crangon crangon (L.) (Decapoda, Crangonidae)
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On the Reproductive Biology of the Females of the Shrimp Crangon crangon (L.) (Decapoda, Crangonidae)

机译：关于虾Crangon crangon（L.）（Decapoda，Crangonidae）雌性的生殖生物学

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摘要

A three-type scheme of the reproductive strategy of the females of the shrimp Crangon crangon is proposed. (1) The sub-Arctic strategy: summer spawning, long-lasting from early June to mid-July. Each female spawns only once within this time period. Despite it being the summertime, the egg size falls into the range of the "winter" spawning of the females inhabiting the boreal areas of the geographic range. (2) The boreal strategy: the spawning takes place all year round. Two groups of females reproduce: large-size winter-spawning (end of November-early March) laying large "winter" eggs and summer-spawning (late Marchearly April till July) laying small-size "summer" eggs. (3) The subtropical strategy: winter spawning (from November through the end of March-beginning of April). The egg size of this group presumably refers to the size of the "summer" eggs produced by the females inhabiting the boreal areas of the geographical range. Such a reproductive strategy of the females of C. crangon refers to the logic of the "excluded fourth case," i.e., either laying the winter eggs during the summer (sub-Arctic), either laying the summer eggs during the winter (subtropics), or both (boreal areas). There is no place for the forth case.
机译：提出了虾克朗贡虾的雌性繁殖策略的三种方案。 （1）亚北极策略：夏季产卵，从6月初到7月中旬持续存在。每个雌性在此时间段内仅产卵一次。尽管在夏季，卵的大小仍落在居住于该地理范围的北方地区的雌性的“冬季”产卵范围内。 （2）北方策略：产卵是一年四季发生的。两组雌性繁殖：大型产卵的冬季产卵（11月底至3月上旬），产下较大的“冬季”卵;夏季产卵的产卵（3月上旬至4月下旬至七月），产卵较小的“夏季”卵。 （3）亚热带策略：冬季产卵（从11月到3月底至4月初）。该组卵的大小大概是指居住在该地理范围的北方地区的雌性产生的“夏季”卵的大小。 C. crangon雌性的这种繁殖策略是指“排除第四种情况”的逻辑，即要么在夏季产下冬季卵（亚北极），要么在冬季产下夏季卵（亚热带）或两者（北方地区）。第四种情况没有地方。

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