Spatial diversity of Pacific herring (Clupea pallasi) spawning areas
Spatial diversity of Pacific herring (Clupea pallasi) spawning areas
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DOI：
10.1093/icesjms/fsp139
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发表时间：
2009-09
影响因子：
3.3
通讯作者：
Douglas E. Hay;P. Mccarter;K. Daniel;J. Schweigert
中科院分区：
文献类型：
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作者：
Douglas E. Hay;P. Mccarter;K. Daniel;J. Schweigert
Hay，D. E、McCarter，P. B.，丹尼尔，K.美国，和Schweigert，J. F. 2009.太平洋鲱鱼产卵场的空间多样性。- ICES Journal of Marine Science，66：1662- 1666. Eastern Pacific herring spawn in intertidal and shallow subtidal areas.产卵地点很显眼：鱼精将沿海沃茨变成白色，有时甚至能覆盖数公里。这一属性使生物学家能够在加拿大西部29500公里的海岸线上记录70多年的产卵分布。产卵分布和空间多样性随时间而变化。当汇总超过70年（1938-2007年），产卵发生在沿着5574公里或总海岸线的20%。累积的年产卵长度从131公里（1966年）到770公里（1992年）不等。我们研究了产卵分布的年度变化，使用可变大小的空间单元，范围从最大的>1000平方公里的最小的0.3平方公里）。空间尺度的选择可以影响其他因素的分析结果，如SSB，这可能会影响产卵区的空间多样性。
Hay, D. E., McCarter, P. B., Daniel, K. S., and Schweigert, J. F. 2009. Spatial diversity of Pacific herring (Clupea pallasi) spawning areas. - ICES Journal of Marine Science, 66: 1662-1666.Eastern Pacific herring spawn in intertidal and shallow subtidal areas. Spawning sites are conspicuous: milt turns coastal waters white, sometimes for distances of many kilometres. This attribute has enabled biologists to document spawning distributions for more than 70 years throughout the 29 500 km coastline of western Canada. Spawning distributions and spatial diversity have varied over time. When aggregated over 70 years (1938-2007), spawning occurred along 5574 km or ∼20% of the total coastline. Cumulative annual spawn length ranges from 131 (in 1966) to 770 km (in 1992). We examined annual changes in spawn distribution using spatial units of variable size, ranging in area from a maximum of >1000 km 2 to a minimum of 0.3 km 2 ). The choice of spatial scale can affect the results from analyses of other factors, such as SSB, that could affect spatial diversity of spawning areas.