Consequences of Ocean Scale Hypoxia Constrained Habitat for Tropical Pelagic Fishes
Large areas of cold hypoxic water occur as distinct strata in the eastern tropical Pacific and Atlantic oceans as a result of high productivity initiated by intense nutrient upwelling. Recent studies show that this stratum restricts the depth distribution of tropical pelagic marlins, sailfish, and t...
Published in: | Gulf and Caribbean Research |
---|---|
Main Authors: | , |
Format: | Text |
Language: | unknown |
Published: |
The Aquila Digital Community
2007
|
Subjects: | |
Online Access: | https://aquila.usm.edu/gcr/vol19/iss2/4 https://doi.org/10.18785/gcr.1902.04 https://aquila.usm.edu/context/gcr/article/1413/viewcontent/Pages_from_vol19.2_5.pdf |
id |
ftsouthmissispun:oai:aquila.usm.edu:gcr-1413 |
---|---|
record_format |
openpolar |
spelling |
ftsouthmissispun:oai:aquila.usm.edu:gcr-1413 2023-07-30T04:05:27+02:00 Consequences of Ocean Scale Hypoxia Constrained Habitat for Tropical Pelagic Fishes Prince, Eric D. Goodyear, C. Phillip 2007-01-01T08:00:00Z application/pdf https://aquila.usm.edu/gcr/vol19/iss2/4 https://doi.org/10.18785/gcr.1902.04 https://aquila.usm.edu/context/gcr/article/1413/viewcontent/Pages_from_vol19.2_5.pdf unknown The Aquila Digital Community https://aquila.usm.edu/gcr/vol19/iss2/4 doi:10.18785/gcr.1902.04 https://aquila.usm.edu/context/gcr/article/1413/viewcontent/Pages_from_vol19.2_5.pdf Gulf and Caribbean Research ocean scale hypoxia tropical pelagic fishes Marine Biology text 2007 ftsouthmissispun https://doi.org/10.18785/gcr.1902.04 2023-07-15T18:47:59Z Large areas of cold hypoxic water occur as distinct strata in the eastern tropical Pacific and Atlantic oceans as a result of high productivity initiated by intense nutrient upwelling. Recent studies show that this stratum restricts the depth distribution of tropical pelagic marlins, sailfish, and tunas in the eastern tropical Pacific by compressing the acceptable physical habitat into a narrow surface layer. This layer extends downward to a variable boundary defined by a shallow thermocline, often at 25 m, above a barrier of cold hypoxic water. The depth distributions of marlin and sailfish monitored with electronic tags and mean dissolved oxygen (DO) and temperature profiles show that this cold hypoxic environment constitutes a lower habitat boundary in the eastern tropical Pacific, but not in the western North Atlantic. where DO is not limiting. However. hypoxia-based habitat compression has not actually been demonstrated in the eastern tropical Atlantic Ocean, despite this region having similar oceanographic features to the eastern tropical Pacific. This paper explores the possibility that habitat compression of tropical pelagic fishes exists in the eastro tropical Atlantic and examines possible consequences of this phenomenon. We used Atlantic-wide catches of yellowfin tuna (Thunnus albacares) as an example why habitat compression off west Africa could eventually affect the total Atlantic stock. Text North Atlantic The University of Southern Mississippi: The Aquila Digital Community Pacific Gulf and Caribbean Research 19 |
institution |
Open Polar |
collection |
The University of Southern Mississippi: The Aquila Digital Community |
op_collection_id |
ftsouthmissispun |
language |
unknown |
topic |
ocean scale hypoxia tropical pelagic fishes Marine Biology |
spellingShingle |
ocean scale hypoxia tropical pelagic fishes Marine Biology Prince, Eric D. Goodyear, C. Phillip Consequences of Ocean Scale Hypoxia Constrained Habitat for Tropical Pelagic Fishes |
topic_facet |
ocean scale hypoxia tropical pelagic fishes Marine Biology |
description |
Large areas of cold hypoxic water occur as distinct strata in the eastern tropical Pacific and Atlantic oceans as a result of high productivity initiated by intense nutrient upwelling. Recent studies show that this stratum restricts the depth distribution of tropical pelagic marlins, sailfish, and tunas in the eastern tropical Pacific by compressing the acceptable physical habitat into a narrow surface layer. This layer extends downward to a variable boundary defined by a shallow thermocline, often at 25 m, above a barrier of cold hypoxic water. The depth distributions of marlin and sailfish monitored with electronic tags and mean dissolved oxygen (DO) and temperature profiles show that this cold hypoxic environment constitutes a lower habitat boundary in the eastern tropical Pacific, but not in the western North Atlantic. where DO is not limiting. However. hypoxia-based habitat compression has not actually been demonstrated in the eastern tropical Atlantic Ocean, despite this region having similar oceanographic features to the eastern tropical Pacific. This paper explores the possibility that habitat compression of tropical pelagic fishes exists in the eastro tropical Atlantic and examines possible consequences of this phenomenon. We used Atlantic-wide catches of yellowfin tuna (Thunnus albacares) as an example why habitat compression off west Africa could eventually affect the total Atlantic stock. |
format |
Text |
author |
Prince, Eric D. Goodyear, C. Phillip |
author_facet |
Prince, Eric D. Goodyear, C. Phillip |
author_sort |
Prince, Eric D. |
title |
Consequences of Ocean Scale Hypoxia Constrained Habitat for Tropical Pelagic Fishes |
title_short |
Consequences of Ocean Scale Hypoxia Constrained Habitat for Tropical Pelagic Fishes |
title_full |
Consequences of Ocean Scale Hypoxia Constrained Habitat for Tropical Pelagic Fishes |
title_fullStr |
Consequences of Ocean Scale Hypoxia Constrained Habitat for Tropical Pelagic Fishes |
title_full_unstemmed |
Consequences of Ocean Scale Hypoxia Constrained Habitat for Tropical Pelagic Fishes |
title_sort |
consequences of ocean scale hypoxia constrained habitat for tropical pelagic fishes |
publisher |
The Aquila Digital Community |
publishDate |
2007 |
url |
https://aquila.usm.edu/gcr/vol19/iss2/4 https://doi.org/10.18785/gcr.1902.04 https://aquila.usm.edu/context/gcr/article/1413/viewcontent/Pages_from_vol19.2_5.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Gulf and Caribbean Research |
op_relation |
https://aquila.usm.edu/gcr/vol19/iss2/4 doi:10.18785/gcr.1902.04 https://aquila.usm.edu/context/gcr/article/1413/viewcontent/Pages_from_vol19.2_5.pdf |
op_doi |
https://doi.org/10.18785/gcr.1902.04 |
container_title |
Gulf and Caribbean Research |
container_volume |
19 |
_version_ |
1772817381886787584 |