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Monitoring Hotspots and Migration Co...

Black, Chelsea Leigh,

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Monitoring Hotspots and Migration Corridors of Highly Mobile Shark Species Under Global Change /

Record Type:	Electronic resources : Monograph/item
Title/Author:	Monitoring Hotspots and Migration Corridors of Highly Mobile Shark Species Under Global Change // Chelsea Leigh Black.
Author:	Black, Chelsea Leigh,
Description:	1 electronic resource (178 pages)
Notes:	Source: Dissertations Abstracts International, Volume: 86-04, Section: A.
Contained By:	Dissertations Abstracts International86-04A.
Subject:	Ecology. -
Online resource:	https://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=31633057
ISBN:	9798896074052

Monitoring Hotspots and Migration Corridors of Highly Mobile Shark Species Under Global Change /
Black, Chelsea Leigh,

Monitoring Hotspots and Migration Corridors of Highly Mobile Shark Species Under Global Change /Chelsea Leigh Black. - 1 electronic resource (178 pages)

Source: Dissertations Abstracts International, Volume: 86-04, Section: A.

Migratory marine species traverse vast geographic ranges and exhibit complex cyclical movements that can span hundreds to thousands of kilometers. These species are critical indicators of ecosystem health and climate change due to their roles as top predators. This dissertation focuses on the use of satellite telemetry to monitor and predict areas of habitat use and migration corridors of highly mobile shark species, which are particularly challenging to manage due to their extensive range and need for coordinated management efforts. Certain life history traits of highly mobile sharks- slow growth, late maturity, and low fecundity- make them highly vulnerable to anthropogenic threats and climate change impacts. Indeed, many shark species have already faced significant population declines. While multiple international and regional policies have been put in place to address these declines, many shark populations are still threatened with overexploitation due to commercial fisheries and incidental bycatch, which will only be further compounded by the effects of climate change that alter their suitable habitat. Global changes like rising sea surface temperature, ocean acidification, and altered ocean circulation patterns impact the distribution of highly mobile sharks. Exploring the current distribution of highly mobile sharks and the environmental conditions within these areas will provide a baseline to understand how they may respond to predicted changes in the future. This dissertation uses satellite telemetry data from tiger (Galeocerdo cuvier), blue (Prionace glauca), great hammerhead (Sphyrna mokarran), and scalloped hammerhead (Sphyrna lewini) sharks within the Gulf of Mexico, Caribbean, and Western North Atlantic to identify the environmental variables that influence their distribution. Furthermore, it projects how their distribution may shift under future climate change scenarios using projected environmental variables for the 2090-2100 decade. By identifying areas where multiple shark species occur ("hotspots") and predicting where they will shift in the future, this research provides insights for concentrating management strategies and enhancing the protection of highly mobile shark species amidst a rapidly changing environment.

English

ISBN: 9798896074052Subjects--Topical Terms:

516476
Ecology.
Subjects--Index Terms:

Habitat suitability

Monitoring Hotspots and Migration Corridors of Highly Mobile Shark Species Under Global Change /
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520 $a Migratory marine species traverse vast geographic ranges and exhibit complex cyclical movements that can span hundreds to thousands of kilometers. These species are critical indicators of ecosystem health and climate change due to their roles as top predators. This dissertation focuses on the use of satellite telemetry to monitor and predict areas of habitat use and migration corridors of highly mobile shark species, which are particularly challenging to manage due to their extensive range and need for coordinated management efforts. Certain life history traits of highly mobile sharks- slow growth, late maturity, and low fecundity- make them highly vulnerable to anthropogenic threats and climate change impacts. Indeed, many shark species have already faced significant population declines. While multiple international and regional policies have been put in place to address these declines, many shark populations are still threatened with overexploitation due to commercial fisheries and incidental bycatch, which will only be further compounded by the effects of climate change that alter their suitable habitat. Global changes like rising sea surface temperature, ocean acidification, and altered ocean circulation patterns impact the distribution of highly mobile sharks. Exploring the current distribution of highly mobile sharks and the environmental conditions within these areas will provide a baseline to understand how they may respond to predicted changes in the future. This dissertation uses satellite telemetry data from tiger (Galeocerdo cuvier), blue (Prionace glauca), great hammerhead (Sphyrna mokarran), and scalloped hammerhead (Sphyrna lewini) sharks within the Gulf of Mexico, Caribbean, and Western North Atlantic to identify the environmental variables that influence their distribution. Furthermore, it projects how their distribution may shift under future climate change scenarios using projected environmental variables for the 2090-2100 decade. By identifying areas where multiple shark species occur ("hotspots") and predicting where they will shift in the future, this research provides insights for concentrating management strategies and enhancing the protection of highly mobile shark species amidst a rapidly changing environment.
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650 4 $a Biological oceanography. $3 2122748
653 $a Habitat suitability
653 $a Satellite
653 $a Sharks
653 $a Telemetry
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690 $a 0454
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710 2 $a University of Miami. $b Marine Ecosystems and Society (Marine). $e degree granting institution. $3 3816982
720 1 $a Die, David $e degree supervisor.
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