Birkeland Charles, Dayton Paul K
Department of Zoology, 2538 The Mall, Edmondson 164, University of Hawaii at Manoa, Honolulu, HI 96822, USA.
Trends Ecol Evol. 2005 Jul;20(7):356-8. doi: 10.1016/j.tree.2005.03.015.
Research by Berkeley et al. and by Bobko and Berkeley has recently demonstrated that older individuals of some fish species produce larvae that have substantially better survival potential than do larvae from younger fishes. These new findings augment established knowledge that larger individuals usually have exponentially greater fecundity. This is important because commercial fisheries and especially recreational fishing often target the larger fish. The protection of larger or older individuals is necessary for the sustainability of species currently exploited by humans.
伯克利等人以及博布科和伯克利所做的研究最近表明,一些鱼类的年长个体产出的幼体比年幼个体产出的幼体具有显著更高的生存潜力。这些新发现扩充了已有的认知,即体型较大的个体通常具有成倍增长的更高繁殖力。这很重要,因为商业渔业,尤其是休闲垂钓,往往以较大的鱼类为目标。保护体型较大或年龄较大的个体对于目前被人类开发利用的物种的可持续性而言是必要的。