10.5061/DRYAD.7WM37PVPB
Lee, Elizabeth
0000-0003-3412-1591
Oregon State University
Data from: Big fishery, big data, and little crabs: using genomic methods
to examine the seasonal recruitment patterns of early life stage Dungeness
crab (Cancer magister) in the California current ecosystem
Dryad
dataset
2020
The California Current Ecosystem (CCE)
marine ecosystem
fishery
Big Data
Dungeness crab
Coos Bay
genomic methods
seasonal recruitment patterns
Cancer magister
2020-01-10T00:00:00Z
2020-01-10T00:00:00Z
en
https://doi.org/10.3389/fmars.2019.00836
918558 bytes
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CC0 1.0 Universal (CC0 1.0) Public Domain Dedication
The California Current Ecosystem (CCE) is a dynamic marine ecosystem from
which many socioeconomically important fisheries species are harvested.
Here, a genotypingby-sequencing (GBS) approach was used to examine genomic
variation in an early life stage (megalopae) of the Dungeness crab (Cancer
magister), which constitutes the most valuable single-species commercial
fishery in the CCE. Variation in abundance and timing of megalopae
recruitment has been extensively studied for over two decades in Coos Bay,
Oregon, United States. Within the CCE, documented timing of Dungeness crab
life history events indicates that coastal megalopae recruitment is
expected to occur April through July; however, long-term studies in Coos
Bay have observed late-season recruitment from August to October. Based on
variation at 1,913 presumably neutral loci, evidence was found for weak,
yet significant differentiation (FST estimate = 0.0011) between the 2014
expected-season recruits (n = 47) and lateseason recruits (n = 47)
collected in Coos Bay. However, two putatively adaptive loci with a high
FST estimate (0.2036) between expected-season and late-season recruits
were identified. These findings support the hypothesis that
expected-season and lateseason megalopae recruiting to Coos Bay within the
same year may have originated from different locations or from different
breeding groups. Understanding marine species connectivity between
ecosystems is important when considering how future changes in ocean
conditions may impact fishery harvests.