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Advisor(s)
Abstract(s)
With gradual decline of global finfish
resources, fisheries targeting cephalopods expanded.
Yet, the stock assessment and management practice
are frequently lacking, and existing ones often remain
poorly suited for cephalopod unique life-history. In
light of increasing ecological disturbances in marine
ecosystems worldwide, assessing exploited species’
status and response becomes vital for devising effective
strategies that would ensure their sustainable
management. There is generally scarce understanding
of the way fisheries and other environmental stressors
exert their combined effects on cephalopods stock
dynamic and long-term resilience. To that end,
evolutionary-based population studies that inform on
identity, connectivity and adaptive potential of natural
populations present a unique opportunity for assessing
the viability of exploited cephalopod stocks. Such
studies have been revolutionized in the last decade by
proliferation of next generation sequencing technologies.
They offer new avenues for expanding our
knowledge, especially on population structure and the
evolutionary responses to shifts in environmental
pressures. In this paper we elaborate on how deep genomic insights into demographic and evolutionary
status of fished cephalopods could improve their stock
assessment and management practice. We also propose
that the common octopus Octopus vulgaris would
be a suitable model species to test the power of
evolutionary tools to inform fishery scientists and
managers on biological questions relevant for their
sustainable exploitation.
Description
Keywords
Stock definition Sustainable fisheries Evolutionary potential Evolutionary genomics Octopus vulgaris
Citation
Fisheries Researche doi.: 10.1007/s11160-021-09652-0
Publisher
Elsevier