M. Cecilia Pardo-Gandarillas, Pamela Morales, Jennifer Catalán, Sergio A. Carrasco, Sebastián Hernández, Pablo A. Oyarzún, Rodrigo Wiff, Christian M. Ibáñez
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引用次数: 0
Abstract
Species with high connectivity usually lack genetic differentiation. We tested for the presence of multiple populations of jumbo squid (Dosidicus gigas) on the Southeastern Pacific Ocean. Samples were collected from Ecuador to southern Chile (1.5° S–38° S). Two mitochondrial genes were sequenced (COI and ND2). Jumbo squids from all sampled locations in Ecuador, Peru, and Chile, as a whole, were characterized by low genetic diversity and an absence of spatial genetic structure, which suggest the presence of a population genetic unit in the Southeastern Pacific Ocean. Absence of spatial genetic structure was associated with high vagility of adults, eggs, and paralarvae of jumbo squid. We conclude that jumbo squid should be managed as a single biological stock along the Southeastern Pacific Ocean.
期刊介绍：
Fisheries Management and Ecology is a journal with an international perspective. It presents papers that cover all aspects of the management, ecology and conservation of inland, estuarine and coastal fisheries.
The Journal aims to:
foster an understanding of the maintenance, development and management of the conditions under which fish populations and communities thrive, and how they and their habitat can be conserved and enhanced;
promote a thorough understanding of the dual nature of fisheries as valuable resources exploited for food, recreational and commercial purposes and as pivotal indicators of aquatic habitat quality and conservation status;
help fisheries managers focus upon policy, management, operational, conservation and ecological issues;
assist fisheries ecologists become more aware of the needs of managers for information, techniques, tools and concepts;
integrate ecological studies with all aspects of management;
ensure that the conservation of fisheries and their environments is a recurring theme in fisheries and aquatic management.
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