Genetic structure of black abalone (Haliotis cracherodii) populations in the California islands and central California coast:: Impacts of larval dispersal and decimation from withering syndrome

被引：35

作者：

Chambers, MD ^{[1
]}

VanBlaricom, GR ^{[1
]}

Hauser, L ^{[1
]}

Utter, F ^{[1
]}

Friedman, CS ^{[1
]}

机构：

[1] Univ Washington, Sch Aquat & Fishery Sci, Washington Cooperat Fish & Wildlife Res Unit, Seattle, WA 98195 USA

来源：

JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY | 2006年 / 331卷 / 02期

关键词：

abalone; dispersal; genetics; population structure; withering syndrome;

D O I：

10.1016/j.jembe.2005.10.016

中图分类号：

Q14 [生态学（生物生态学）];

学科分类号：

071012 ; 0713 ;

摘要：

The genetic structure of black abalone populations in the southern California Islands and central California coast was investigated by protein electrophoresis. Detailed sampling of San Nicolas Island (SN) permitted investigation of microgeographic genetic differentiation among local geomorphological features. In addition, temporal genetic differentiation was assessed by comparing juveniles and adults at three islands, San Miguel (SM), Santa Cruz (SC) and San Nicolas (SN). Mainland and island locations were genetically differentiated based on allele frequency differences and the presence of private alleles in some island populations. Although microgeographic genetic structure among sites on SN was weak and not statistically significant, heterozygosity varied among sites, with diversity decreasing from west to east. In addition, investigation among cohorts showed that adults were genetically differentiated among island locations, whereas no differences among juveniles were detected. Genetic differentiation between adult and juvenile abalones was detected at SC but not SM or SN. These data are generally consistent with local recruitment augmented by relatively more gene flow among island populations than among island and mainland populations, and possible selection acting on immigrant recruits. (C) 2005 Elsevier B.V. All rights reserved.

引用

页码：173 / 185

页数：13

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