Coastal spawning by winter flounder and a reassessment of Essential Fish Habitat in the Gulf of Maine

Fairchild, Elizabeth A.; Siceloff, Laughlin; Howell, W. Huntting; Hoffman, Bill.; Armstrong, Michael P.

doi:10.1016/j.fishres.2012.05.007

Cited by 30 publications

(36 citation statements)

References 24 publications

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“…An early analysis of microsatellite loci suggest fine-scale stock structuring of Winter Flounder at this southern range (Crivello et al 2004), but a more recent analysis using microsatellite and single-nucleotide polymorphic loci did not find support for more than three U.S. stocks (Wirgin et al 2014). In the Gulf of Maine, coastal spawning is increasingly recognized but the effects of mixing between spawning groups within this region are unclear (DeCelles and Cadrin 2010;Fairchild et al 2013). The Georges Bank stock, found offshore, is managed by the NEFMC; the phenotype of this offshore stock is so different from the coastal stocks that it was once proposed as a separate species (Chase 2014).…”

Section: Floundersmentioning

confidence: 99%

Managing a Marine Stock Portfolio: Stock Identification, Structure, and Management of 25 Fishery Species along the Atlantic Coast of the United States

McBride

2014

N American J Fish Manag

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In this review, stock identification methods used, resulting stock numbers and boundaries, and assessment and management context were explored for all 25 species managed by the Atlantic States Marine Fisheries Commission (ASMFC). This included invertebrates and vertebrates distributed between Maine and Florida, with a few species ranging across all these states and some ranging into the Gulf of Mexico and the Canadian Maritimes. The effects of larval dispersal or mixing of adults in the marine environment were evident. Marine and catadromous spawners were recognized and treated as a unit stock (e.g., northern shrimp Pandalus borealis, American Eel Anguilla rostrata, Atlantic menhaden Brevoortia tyrannus, Bluefish Pomatomus saltatrix, Tautog Tautoga onitis), a metapopulation (American lobster Homarus americanus, Atlantic Herring Clupea harengus), or two stocks, north and south of Cape Hatteras, a major biogeographic boundary, (Black Sea Bass Centropristis striata, Scup Stenotomus chrysops, Red Drum Sciaenops ocellatus, Summer Flounder Paralichthys dentatus). Estuarine and anadromous spawners were structured and managed at a finer spatial scale (horseshoe crab Limulus polyphemus, Atlantic Sturgeon Acipenser oxyrinchus, American Shad Alosa sapidissima and the river herrings Blueback Herring A. aestivalis and Alewife A. pseudoharengus, and Spotted Seatrout Cynoscion nebulosus). A broad suite of stock identification methods have been applied to ASMFC species and reviewed here in five categories: life history traits, other phenotypic traits, genetic traits, natural marks, and applied marks. An interdisciplinary mix of methods has been achieved for a few species (Striped Bass Morone saxatilis, Winter Flounder Pseudopleuronectes americanus), but only a few or no stock identification methods have been applied to others (Spiny Dogfish Squalus acanthias, Hickory Shad A. mediocris, Spot Leiostomus xanthurus, Spanish Mackerel Scomberomorus maculatus). Clinal phenotypic variation has contributed to several long-standing debates about stock structure; some of these have been recently reevaluated as a unit stock (Atlantic Croaker Micropogonias undulatus, Weakfish Cynoscion regalis), and others are still debated. For some ASMFC species, other priorities (e.g., bycatch) dominate the uncertainty of the assessment or management process. Otherwise, stock identification remains a research priority for most of these species. Continued research of this subject should consider (1) research priorities tabulated by ASMFC review panels, (2) strategic use of interdisciplinary stock identification methods, (3) use of experiments or reaction norms to separate phenotypes from genotypes, (4) genetic surveys at a seascape scale, (5) demonstration of contingent (nongenetic) structure and its implications for management, and (6) simulation modeling. Obstacles to adopting finer-scale structure into assessments or management of ASMFC fisheries include: (1) multiple stock units are apparent but boundaries are not clear, (2) monitoring requirements for...

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Section: Floundersmentioning

confidence: 99%

Managing a Marine Stock Portfolio: Stock Identification, Structure, and Management of 25 Fishery Species along the Atlantic Coast of the United States

McBride

2014

N American J Fish Manag

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“…The effect of temperature on maturity was modeled in terms of the mean annual bottom temperature (estimated as described below) averaged over a standard "home range" surrounding the capture location. To account for fish movement, the maximum mean recapture distance of tagged fish from all stock regions (26.1 km; Howe and Coates 1975;Phelan 1992;Pereira et al 1994;Fairchild et al 2013) was used to estimate the area of probable locations occupied. Temperatures within the 2148 km 2 home range surrounding the collection location were then averaged to produce an estimate for each flounder.…”

Section: Maturity Modelsmentioning

confidence: 99%

“…If the resulting home range of a particular fish overlapped the coast, only temperatures from coastal waters were used. While this simplifying assumption is likely more appropriate for some regions or contingents of fish than others (DeCelles and Cadrin 2010; Fairchild et al 2013;Frisk et al 2014), it was necessary given the absence of actual movement data; we were not able to reliably estimate movement patterns, and thus average ambient temperatures, for each fish over the course of the year. We initially also evaluated the effect of temperature variability using the estimated range in temperature experienced over the course of a year at each location, but this metric was collinear with the mean and provided essentially the same information (Pearson correlation coefficient = 0.94; Fig.…”

Section: Maturity Modelsmentioning

confidence: 99%

“…While fish on GB remain in essentially the same habitat, inshore stocks inhabit distinctly different habitats during different life stages, with fish in the GOM and SNE presumably residing in estuaries their first year of life (Pereira et al 1999). Even among coastal stocks, contingents exhibiting divergent movement patterns exist (DeCelles and Cadrin 2010;Fairchild et al 2013;Frisk et al 2014). Therefore, temperatures experienced by individuals from the same general area may vary substantially.…”

Section: Effect Of Temperature On Maturity Schedulesmentioning

confidence: 99%

“…Available tagging studies, while limited, do suggest that winter flounder in SNE tend to migrate larger distances than those in the GOM and GB stock areas (Howe and Coates 1975;Phelan 1992;Fairchild et al 2013); however, sufficient data were not available to reliably estimate movement patterns to generate regionspecific home ranges. While the mean home range we applied for all stock areas is likely an overestimate for fish in the GOM, annual temperature curves and estimates for that region exhibited less variation than in the SNE and GB stock areas (Fig.…”

Section: Effect Of Temperature On Maturity Schedulesmentioning

confidence: 99%

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Investigating spatial variation and temperature effects on maturity of female winter flounder (Pseudopleuronectes americanus) using generalized additive models

WintonMegan

Wuenschel

McBride

2014

Can. J. Fish. Aquat. Sci.

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Generalized additive models were used to investigate fine-scale spatial variation in female maturity across the three United States' winter flounder (Pseudopleuronectes americanus) stocks. The effect of temperature on maturity was also investigated. Maturity models explicitly incorporating spatial structure performed better than "traditional" methods incorporating spatial effects by aggregating data according to predefined stock boundaries. Models including temperature explained more of the variability in maturity than those based only on fish size or age but did not improve fit over models incorporating spatial structure. Based on the size-and age-at-maturity estimates from the spatially explicit models, distinct subareas were objectively identified using a spatially constrained clustering algorithm. The results suggested greater variation in size-and age-at-maturity within than between existing stock areas. The approach outlined here provides a method for identifying areas with different vital rates without the need to presume subjective boundaries. Résumé :Des modèles additifs généralisés ont été utilisés pour examiner les variations spatiales fines de la maturité des femelles dans les trois stocks de plie rouge (Pseudopleuronectes americanus) des États-Unis. L'effet de la température sur la maturité a également été examiné. Les modèles de maturité qui intègrent explicitement la structure spatiale donnent de meilleurs résultats que les méthodes « traditionnelles » qui intègrent les effets spatiaux en groupant les données selon des limites de stock prédéfinies. Les modèles intégrant la température expliquent une plus grande part de la variabilité de la maturité que ceux qui ne reposent que sur la taille ou l'âge des poissons, bien qu'ils n'améliorent pas le calage sur les observations par rapport aux modèles intégrant la structure spatiale. À la lumière des estimations de la taille et de l'âge à la maturité obtenues des modèles spatialement explicites, différentes sous-régions ont été délimitées objectivement à l'aide d'un algorithme de groupement intégrant des contraintes spatiales. Les résultats semblent indiquer de plus grandes variations de la taille et de l'âge à la maturité à l'intérieur des régions des stocks existants qu'entre ces différentes régions. L'approche décrite constitue une méthode permettant de cerner des régions présentant différents taux vitaux sans nécessiter la définition préalable de limites subjectives. [Traduit par la Rédaction]

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Habitat Use and Connectivity

Able¹,

Simenstad²,

Strydom³

et al. 2022

Fish and Fisheries in Estuaries

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Coastal spawning by winter flounder and a reassessment of Essential Fish Habitat in the Gulf of Maine

Cited by 30 publications

References 24 publications

Managing a Marine Stock Portfolio: Stock Identification, Structure, and Management of 25 Fishery Species along the Atlantic Coast of the United States

Managing a Marine Stock Portfolio: Stock Identification, Structure, and Management of 25 Fishery Species along the Atlantic Coast of the United States

Investigating spatial variation and temperature effects on maturity of female winter flounder (Pseudopleuronectes americanus) using generalized additive models

Habitat Use and Connectivity

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