Spatial ecology of Nassau Grouper at home reef sites: using acoustic telemetry to track a large, long-lived epinephelid across multiple years (2005-2008)

Blincow, KM; Bush, PG; Heppell, SA; McCoy, CM; Johnson, BC; Pattengill-Semmens, CV; Heppell, SS; Stevens-McGeever, SJ; Whaylen, L; Luke, K; Semmens, BX

doi:10.3354/meps13516

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Spatial ecology of Nassau Grouper at home reef sites: using acoustic telemetry to track a large, long-lived epinephelid across multiple years (2005-2008)

2020
By Blincow, KM ; Bush, PG ; Heppell, SA ; ...
Source: Marine Ecology Progress Series, 655, 199-214

[PDF-4.00 MB]

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Journal Title:

Marine Ecology Progress Series
Personal Author:

Blincow, KM ; Bush, PG ; Heppell, SA ; McCoy, CM ; Johnson, BC ; ... More +

Blincow, KM ; Bush, PG ; Heppell, SA ; McCoy, CM ; Johnson, BC ; Pattengill-Semmens, CV ; Heppell, SS ; Stevens-McGeever, SJ ; Whaylen, L ; Luke, K ; Semmens, BX Less -
NOAA Program & Office:

NOS (National Ocean Service) ; ONMS (Office of National Marine Sanctuaries) ; CoRIS (Coral Reef Information System)

NOS (National Ocean Service) ; ONMS (Office of National Marine Sanctuaries) ; CoRIS (Coral Reef Information System) Less -
Description:

Characterizing the behavior of coral reef fishes at home reef sites can provide insight into the mechanisms of spatial ecology and provide a framework for spatial resource management. In the Caribbean, populations of Nassau grouper Epinephelus striatus have declined due to fishing impacts on spawning aggregations. Despite local and regional efforts by fisheries managers to implement regulations protecting spawning aggregations, few Nassau grouper populations appear to be recovering. In order to improve management strategies for this critically endangered species, it is necessary to understand the spatial ecology of the species across seasons and years. In the Cayman Islands, we used a multi-year, presence/absence, depth-coded acoustic tagging dataset of Nassau grouper to characterize patterns in the species’ behavior and vertical habitat use at home reef sites. Twenty acoustically tagged individuals (56-84 cm, 70.01 ± 7.40 cm; total length, mean ± SD) maintained consistent home reef sites, although some fish regularly shifted activity centers within the home site, often following a seasonal spawning migration. Seven fish with depth-coded tags showed a higher probability of vertical movement in the hours immediately following dawn and preceding dusk. We found evidence of a positive relationship between the fish condition factor and depth of home reef site. The finding of persistent home reef sites across years suggests that properly sized spatial reserves at home reef sites can be a useful complement to spawning aggregation protection when considering management strategies for Nassau grouper.
Keywords:

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Ecology Nassau Grouper Telemetry
Source:

Marine Ecology Progress Series, 655, 199-214
DOI:

https://doi.org/10.3354/meps13516
ISSN:

0171-8630;1616-1599;
Publisher:

Inter-Research Science Center
Document Type:

Journal Article
Place as Subject:

Caribbean Area
License:

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

CC BY
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urn:sha256:773ed9b27990fe61d86510f0c544e3fc815a61bb06dc48c106924578674bf614
Download URL:

https://repository.library.noaa.gov/view/noaa/50764/noaa_50764_DS1.pdf
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Spatial ecology of Nassau Grouper at home reef sites: using acoustic telemetry to track a large, long-lived epinephelid across multiple years (2005-2008)

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