Is the protected Atlantic cod ( Gadus morhua) population in Gilbert Bay, Labrador, nearing a tipping point?
Abstract The Gilbert Bay Marine Protected Area (MPA), Labrador, was created in 2005 to protect a resident, locally adapted population of Atlantic cod and its habitat. Twenty years of monitoring has shown a 90% decline in this bay‐cod population since the creation of the MPA. The decline of large com...
Published in: | Aquatic Conservation: Marine and Freshwater Ecosystems |
---|---|
Main Authors: | , |
Other Authors: | |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Wiley
2021
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1002/aqc.3666 https://onlinelibrary.wiley.com/doi/pdf/10.1002/aqc.3666 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/aqc.3666 |
id |
crwiley:10.1002/aqc.3666 |
---|---|
record_format |
openpolar |
spelling |
crwiley:10.1002/aqc.3666 2024-06-02T08:03:07+00:00 Is the protected Atlantic cod ( Gadus morhua) population in Gilbert Bay, Labrador, nearing a tipping point? Morris, Corey J. Green, John M. Fisheries and Oceans Canada 2021 http://dx.doi.org/10.1002/aqc.3666 https://onlinelibrary.wiley.com/doi/pdf/10.1002/aqc.3666 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/aqc.3666 en eng Wiley http://creativecommons.org/licenses/by/4.0/ Aquatic Conservation: Marine and Freshwater Ecosystems volume 31, issue 10, page 2995-3002 ISSN 1052-7613 1099-0755 journal-article 2021 crwiley https://doi.org/10.1002/aqc.3666 2024-05-03T10:57:29Z Abstract The Gilbert Bay Marine Protected Area (MPA), Labrador, was created in 2005 to protect a resident, locally adapted population of Atlantic cod and its habitat. Twenty years of monitoring has shown a 90% decline in this bay‐cod population since the creation of the MPA. The decline of large commercial‐sized cod in the bay was accompanied with increases in the abundance of other fish species, including rock cod ( Gadus macrocephalus ogac ), sculpin ( Myoxocephlalus scorpius ), and winter flounder ( Pseudopleuronectes americanus ), suggesting loss of strong top‐down community control. These changes suggest a positive feedback mechanism leading to a fish community tipping point, which could severely impact the recovery potential of the protected Atlantic cod population in the MPA. We suggest that managers should be including this possibility in their management decisions for the Gilbert Bay MPA. Article in Journal/Newspaper atlantic cod Gadus morhua Wiley Online Library Gilbert Bay ENVELOPE(-55.998,-55.998,52.633,52.633) Aquatic Conservation: Marine and Freshwater Ecosystems |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract The Gilbert Bay Marine Protected Area (MPA), Labrador, was created in 2005 to protect a resident, locally adapted population of Atlantic cod and its habitat. Twenty years of monitoring has shown a 90% decline in this bay‐cod population since the creation of the MPA. The decline of large commercial‐sized cod in the bay was accompanied with increases in the abundance of other fish species, including rock cod ( Gadus macrocephalus ogac ), sculpin ( Myoxocephlalus scorpius ), and winter flounder ( Pseudopleuronectes americanus ), suggesting loss of strong top‐down community control. These changes suggest a positive feedback mechanism leading to a fish community tipping point, which could severely impact the recovery potential of the protected Atlantic cod population in the MPA. We suggest that managers should be including this possibility in their management decisions for the Gilbert Bay MPA. |
author2 |
Fisheries and Oceans Canada |
format |
Article in Journal/Newspaper |
author |
Morris, Corey J. Green, John M. |
spellingShingle |
Morris, Corey J. Green, John M. Is the protected Atlantic cod ( Gadus morhua) population in Gilbert Bay, Labrador, nearing a tipping point? |
author_facet |
Morris, Corey J. Green, John M. |
author_sort |
Morris, Corey J. |
title |
Is the protected Atlantic cod ( Gadus morhua) population in Gilbert Bay, Labrador, nearing a tipping point? |
title_short |
Is the protected Atlantic cod ( Gadus morhua) population in Gilbert Bay, Labrador, nearing a tipping point? |
title_full |
Is the protected Atlantic cod ( Gadus morhua) population in Gilbert Bay, Labrador, nearing a tipping point? |
title_fullStr |
Is the protected Atlantic cod ( Gadus morhua) population in Gilbert Bay, Labrador, nearing a tipping point? |
title_full_unstemmed |
Is the protected Atlantic cod ( Gadus morhua) population in Gilbert Bay, Labrador, nearing a tipping point? |
title_sort |
is the protected atlantic cod ( gadus morhua) population in gilbert bay, labrador, nearing a tipping point? |
publisher |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1002/aqc.3666 https://onlinelibrary.wiley.com/doi/pdf/10.1002/aqc.3666 https://onlinelibrary.wiley.com/doi/full-xml/10.1002/aqc.3666 |
long_lat |
ENVELOPE(-55.998,-55.998,52.633,52.633) |
geographic |
Gilbert Bay |
geographic_facet |
Gilbert Bay |
genre |
atlantic cod Gadus morhua |
genre_facet |
atlantic cod Gadus morhua |
op_source |
Aquatic Conservation: Marine and Freshwater Ecosystems volume 31, issue 10, page 2995-3002 ISSN 1052-7613 1099-0755 |
op_rights |
http://creativecommons.org/licenses/by/4.0/ |
op_doi |
https://doi.org/10.1002/aqc.3666 |
container_title |
Aquatic Conservation: Marine and Freshwater Ecosystems |
_version_ |
1800747589911445504 |