Cooperative research sheds light on population structure and listing status of threatened and endangered rockfish species

Andrews, Kelly S.; Nichols, Krista M.; Elz, Anna; Tolimieri, Nick; Harvey, Chris J.; Pacunski, Robert; Lowry, Dayv; Yamanaka, K. Lynne; Tonnes, Daniel

doi:10.1007/s10592-018-1060-0

Cited by 25 publications

(46 citation statements)

References 54 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Low F ST values are often observed for marine fish (Knutsen et al, ; Nielsen et al, ), but our results lie within the lower end of the F ST range (<0.001–0.07) reported by other RAD sequencing studies of marine fishes (reviewed by Benestan et al, ). Similar pairwise F ST values (0.0000–0.0276) have been reported by population genetic studies of other rockfish species sampled over larger geographic scales (>2,000 km 2 ), and which used the same SbfI restriction enzyme (Andrews et al, ; Martinez, Buonaccorsi, Hyde, & Aguilar, ). Based on the shared RAD sequencing protocol and the results of the power analysis conducted by Martinez et al (), it is likely that our >15,000 loci (Table ) provided sufficient statistical power to detect fine‐scale population genetic structure, and that our genetic results are accurate.…”

Section: Discussionsupporting

confidence: 75%

“…ST values are often observed for marine fish(Knutsen et al, 2011;Nielsen et al, 2009), but our results lie within the lower end of the F ST range (<0.001-0.07) reported by other RAD sequencing studies of marine fishes (reviewed byBenestan et al, 2017). Similar pairwise F ST values (0.0000-0.0276) have been reported by population genetic studies of other rockfish species sampled over larger geographic scales (>2,000 km 2 ), and which used the same SbfI restriction enzyme(Andrews et al, 2018;Martinez, Buonaccorsi, Hyde, & Aguilar, 2017). Based on the shared RAD sequencing protocol…”

supporting

confidence: 90%

“…The data generated in this study can contribute to future, more extensive studies of Sebastes rockfish diversity. The sequence data are compatible with reads from previous RADseq studies of other rockfish species that also used the SbfI restriction enzyme (Andrews et al, 2018;Martinez et al, 2017). The shaper otolith digitization method easily allows morphometric datasets from other regions or species to be combined as well.…”

Section: Discussionmentioning

confidence: 92%

“…Potential genetic differences between males and females were not examined in the previous RAD sequencing studies of other rockfish species (Andrews et al, 2018;Martinez et al, 2017). In the study of grass rockfish Sebastes rastrelliger (Jordan & Gilbert, 1880), sex was not recorded and PCA plots were not presented (Martinez et al, 2017).…”

Section: Influence Of Sexmentioning

confidence: 99%

See 3 more Smart Citations

Sex matters: Otolith shape and genomic variation in deacon rockfish (Sebastes diaconus)

Vaux

Rasmuson

Kautzi

et al. 2019

Ecology and Evolution

View full text Add to dashboard Cite

Little is known about intraspecific variation within the deacon rockfish (Sebastes diaconus), a recently described species found in the northeast Pacific Ocean. We investigated population structure among fish sampled from two nearshore reefs (Siletz Reef and Seal Rock) and one offshore site (Stonewall Bank) within a <50‐km2 area off the Oregon coast. Fish from the three sample sites exhibited small but statistically significant differences based on genetic variation at >15,000 neutral loci, whether analyzed independently or classified into nearshore and offshore groups. Male and females were readily distinguished using genetic data and 92 outlier loci were associated with sex, potentially indicating differential selection between males and females. Morphometric results indicated that there was significant secondary sexual dimorphism in otolith shape, but further sampling is required to disentangle potential confounding influence of age. This study is the first step toward understanding intraspecific variation within the deacon rockfish and the potential management implications. Since differentiation among the three sample sites was small, we consider the results to be suggestive of a single stock. However, future studies should evaluate how the stock is affected by differences in sex, age, and gene flow between the nearshore and offshore environments.

show abstract

Section: Discussionsupporting

confidence: 75%

supporting

confidence: 90%

Section: Discussionmentioning

confidence: 92%

Section: Influence Of Sexmentioning

confidence: 99%

See 2 more Smart Citations

Sex matters: Otolith shape and genomic variation in deacon rockfish (Sebastes diaconus)

Vaux

Rasmuson

Kautzi

et al. 2019

Ecology and Evolution

View full text Add to dashboard Cite

show abstract

“…were listed under the ESA in Puget Sound, WA, USA, although that decision was made in an extremely data-poor scientific environment (Drake et al 2010). Subsequent research to fill crucial data gaps relied heavily on 1) the local ecological knowledge of the recreational fishing community for locating these rare rockfish species and 2) their bottom fishing expertise for collecting enough genetic samples of these rockfishes (Andrews et al 2018). The samples collected owing to their knowledge and skill provided new information on rockfish population structure (Andrews et al 2018) and led to the delisting of one threatened rockfish species and the broadening of population boundaries for a second threatened species (NMFS 2017a).…”

Section: Introductionmentioning

confidence: 99%

All Hands on Deck: Local Ecological Knowledge and Expert Volunteers Contribute to the First Delisting of a Marine Fish Species Under the Endangered Species Act

Andrews

Nichols

Harvey

et al. 2019

Citizen Science: Theory and Practice

Self Cite

View full text Add to dashboard Cite

The listing of three species of rockfish (Sebastes spp.) under the Endangered Species Act (ESA) in 2010 motivated the development of a cooperative research program between government agencies and the local recreational fishing and SCUBA diving communities of Puget Sound (PS), WA, USA. This program has examined rockfish life history characteristics, movement behavior, young-of-year recruitment and the population responses to fishing in PS. Of most significance has been the involvement of the recreational fishing community in testing whether the three ESA-listed rockfish populations in PS were genetically discrete from populations outside of PS. There was considerable uncertainty in the answer to this question during the original ESA listing process due to limited data on these three species in PS. We used the knowledge and expert angling skills of the fishing community to locate these rare species and non-lethally collect tissue samples for genetic analyses. Results showed that yelloweye rockfish (S. ruberrimus) was genetically differentiated between PS and the outer coast, but the boundaries of the population were different than previously assumed. In contrast, canary rockfish (S. pinniger) was genetically similar across PS and the outer coast. Federal managers used these results to expand the ESA-listed boundaries of yelloweye rockfish and to delist canary rockfish-the first delisting of a marine fish species from the ESA. The knowledge and angling expertise of the Puget Sound recreational fishing community were directly responsible for the successful collection of data to test hypotheses that resulted in very specific management decisions.

show abstract

Genetic structure and dispersal in peripheral populations of a marine fish (Pacific cod, Gadus macrocephalus) and their importance for adaptation to climate change

Fisher

Helser

Sukyung

et al. 2021

Ecology and Evolution

View full text Add to dashboard Cite

Small and isolated peripheral populations, which are often remnants of glacial refugia, offer an opportunity to determine the magnitude and direction of fine‐scale connectivity in high gene flow marine species. When located at the equatorial edge of a species’ range, these populations may also harbor genetic diversity related to survival and reproduction at higher temperatures, a critical resource for marine species facing warming ocean temperatures. Pacific cod (Gadus macrocephalus), a marine fish in the North Pacific, has already experienced major shifts in biomass and distribution linked to climate change. We estimated the magnitude and direction of connectivity between peripheral populations of Pacific cod at the southern edge of the species’ range, by conducting restriction site‐associated DNA (RAD) sequencing and individual assignment on fish collected around the Korean Peninsula during the spawning season. Three populations on the western, eastern, and southern Korean coasts were highly differentiated (FST = 0.025–0.042) and relatively small (Ne = 433–1,777). Ten putative dispersers and estimates of contemporary migration rates revealed asymmetrical, west‐to‐east movement around the Korean Peninsula, at a higher rate than predicted by indirect estimates of connectivity (FST). Allele frequencies at 87 RAD loci were decisively correlated with strong marine temperature gradients between the warmer southern coast and the cooler waters of the eastern and western coasts. Despite relatively small sample sizes, our data suggest asymmetrical dispersal and gene flow, potentially involving adaptive alleles, between peripheral populations inhabiting markedly different thermal regimes. Our study emphasizes the conservation value of peripheral populations in high gene flow marine fish species.

show abstract

Cooperative research sheds light on population structure and listing status of threatened and endangered rockfish species

Cited by 25 publications

References 54 publications

Sex matters: Otolith shape and genomic variation in deacon rockfish (Sebastes diaconus)

Sex matters: Otolith shape and genomic variation in deacon rockfish (Sebastes diaconus)

All Hands on Deck: Local Ecological Knowledge and Expert Volunteers Contribute to the First Delisting of a Marine Fish Species Under the Endangered Species Act

Genetic structure and dispersal in peripheral populations of a marine fish (Pacific cod, Gadus macrocephalus) and their importance for adaptation to climate change

Contact Info

Product

Resources

About