Trade-offs between risks of predation and starvation in larvae make the shelf break an optimal spawning location for Atlantic bluefin tuna

Shropshire, Taylor A.; Morey, Steven L.; Chassignet, Eric P.; Karnauskas, Mandy; Coles, Victoria J.; Malca, Estrella; Laiz-Carrión, Raúl; Fiksen, Øyvind; Reglero, Patricia; Shiroza, Akihiro; Quintanilla Hervas, José M.; Gerard, Trika; Lamkin, John T.; Stukel, Michael R

doi:10.1093/plankt/fbab041

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The NOAA IR serves as an archival repository of NOAA-published products including scientific findings, journal articles, guidelines, recommendations, or other information authored or co-authored by NOAA or funded partners. As a repository, the NOAA IR retains documents in their original published format to ensure public access to scientific information.

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Trade-offs between risks of predation and starvation in larvae make the shelf break an optimal spawning location for Atlantic bluefin tuna

2021
By Shropshire, Taylor A. ; Morey, Steven L. ; Chassignet, Eric P. ; ...
Source: Journal of Plankton Research, 2021; fbab041

[PDF-1.79 MB]

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Details:

Journal Title:

Journal of Plankton Research
Personal Author:

Shropshire, Taylor A. ; Morey, Steven L. ; Chassignet, Eric P. ; Karnauskas, Mandy ; Coles, Victoria J. ; ... More +

Shropshire, Taylor A. ; Morey, Steven L. ; Chassignet, Eric P. ; Karnauskas, Mandy ; Coles, Victoria J. ; Malca, Estrella ; Laiz-Carrión, Raúl ; Fiksen, Øyvind ; Reglero, Patricia ; Shiroza, Akihiro ; Quintanilla Hervas, José M. ; Gerard, Trika ; Lamkin, John T. ; Stukel, Michael R Less -
NOAA Program & Office:

NMF (National Marine Fisheries Service) ; OAR (Oceanic and Atmospheric Research) ; CIMAS (Cooperative Institute for Marine and Atmospheric Studies) ; SEFSC (Southeast Fisheries Science Center) ; NGI (Norhtern Gulf Institute)

NMF (National Marine Fisheries Service) ; OAR (Oceanic and Atmospheric Research) ; CIMAS (Cooperative Institute for Marine and Atmospheric Studies) ; SEFSC (Southeast Fisheries Science Center) ; NGI (Norhtern Gulf Institute) Less -
Description:

Atlantic bluefin tuna (ABT) (Thunnus thynnus) travel long distances to spawn in oligotrophic regions of the Gulf of Mexico (GoM) which suggests these regions offer some unique benefit to offspring survival. To better understand how larval survival varies within the GoM a spatially explicit, Lagrangian, individual-based model was developed that simulates dispersal and mortality of ABT early life stages within realistic predator and prey fields during the spawning periods from 1993 to 2012. The model estimates that starvation is the largest cumulative source of mortality associated with an early critical period. However, elevated predation on older larvae is identified as the main factor limiting survival to late postflexion. As a result, first-feeding larvae have higher survival on the shelf where food is abundant, whereas older larvae have higher survival in the open ocean with fewer predators, making the shelf break an optimal spawning area. The modeling framework developed in this study explicitly simulates both physical and biological factors that impact larval survival and hence could be used to support ecosystem based management efforts for ABT under current and future climate conditions.
Keywords:

[+]

Bluefin Tuna Fishes Larvae Predation (Biology) Spawning
Source:

Journal of Plankton Research, 2021; fbab041
DOI:

https://doi.org/10.1093/plankt/fbab041
ISSN:

0142-7873;1464-3774;
Format:

PDF
Publisher:

Oxford University Press (OUP)
Document Type:

Journal Article
Funding:

Grant no. NA20OAR4320472 ; Grant no. NA16OAR4320199 ; Grant no. NA16SEC48100009 ; Grant no. NA15OAR4320064

Grant no. NA20OAR4320472 ; Grant no. NA16OAR4320199 ; Grant no. NA16SEC48100009 ; Grant no. NA15OAR4320064 Less -
Place as Subject:

Mexico, Gulf of
License:

https://creativecommons.org/licenses/by/4.0/
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:f317a2a06abeace0f5c21d0571457962e034389763fd2f207e8f91d0da1d4f00
Download URL:

https://repository.library.noaa.gov/view/noaa/50495/noaa_50495_DS1.pdf
File Type:

	Supplemental media	docx
	Supplemental media	docx

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