Differences in temperature conditions and somatic growth rate of larval and early juvenile spring-spawned herring from the Vistula Lagoon, Baltic Sea manifested in the otolith to fish size relationship
Differences in temperature conditions and somatic growth rate of larval and early juvenile spring-spawned herring from the Vistula Lagoon, Baltic Sea manifested in the otolith to fish size relationship
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DOI：
10.1111/j.1095-8649.2001.tb02284.x
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发表时间：
2001-05-01
影响因子：
2
通讯作者：
Fey, DP
中科院分区：
文献类型：
--
作者：
Fey, DP
1997年5月至7月在维斯瓦泻湖波兰部分收集的鲱鱼幼鱼和幼鱼于4月17日至6月9日孵化，来自三个队列。产卵季节于3月1日开始，气温为3.8摄氏度，6月3日结束，气温为12.7摄氏度。在4月的前2周，幼虫的死亡率很高，这可能与产卵季节开始时温度显著下降有关。10-48 mm长（宽）鲱鱼的生长是线性的，第一队列的仔稚鱼生长最快（0.58 mm mm（-1）d（-1）），第二队列生长较慢（0.55 mm mm（-1）d（-1）），第三队列生长最慢（0.5 mm mm（-1）d（-1））。温度对生长的影响尚不确定，6月份可能不利的摄食条件可能是第三代仔稚鱼生长相对缓慢的原因。（周长，长度，宽度，面积和重量）和鱼的大小（L（S））在三个队列之间存在差异，主要与耳石生长的正温度效应有关，生长在温暖水域的个体耳石较大。虽然也观察到负增长率效应，但不太显著。(C)2001年，不列颠群岛渔业协会。
Larval and juvenile herring Clupea harengus collected in the Polish part of the Vistula Lagoon in May-July 1997 had hatched between 17 April and 9 June and originated from three cohorts. The spawning season began on 1 March at 3.8 degrees C and was completed on 3 June at 12.7 degreesC. Mortality among larvae was high in the first 2 weeks of April, probably associated with significant temperature decrease at the beginning of the spawning season. The growth of 10-48 mm L(S) herring was linear, highest for larvae and juveniles from the first cohort (0.58 mm mm(-1) day(-1)), slower for the second cohort (0.55 mm mm(-1) day(-1)) and the slowest for the third cohort (0.5 mm mm day(-1)). Temperature effects on the growth were inconclusive and potentially unfavourable feeding conditions in June might have been responsible for the relatively slow growth of third cohort larvae and juveniles.Relationships between otolith size (perimeter, length, width, area, and weight) and fish size (L(S)) differed among the three cohorts, related mostly to the positive temperature effect on otolith growth, individuals growing in warmer water had larger otoliths. Although a negative growth rate effect was observed as well, it was less significant. (C) 2001 The Fisheries Society of the British Isles.