Movements and behavior of wild and head-started sea turtles
Flipper-tagging, aerial surveys, and satellite telemetry was used to investigate the occurrence, migratory routes, distances traveled, swimming speeds, diving behavior, and the relation of water temperature to movements and timing of migration of wild loggerhead (Caretta caretta) and Kemp's rid...
Main Author: | |
---|---|
Format: | Text |
Language: | English |
Published: |
W&M ScholarWorks
1993
|
Subjects: | |
Online Access: | https://scholarworks.wm.edu/etd/1539616710 https://doi.org/10.25773/v5-jbgm-bf23 https://scholarworks.wm.edu/context/etd/article/2277/viewcontent/9403265.pdf |
id |
ftwilliammarycol:oai:scholarworks.wm.edu:etd-2277 |
---|---|
record_format |
openpolar |
spelling |
ftwilliammarycol:oai:scholarworks.wm.edu:etd-2277 2023-06-11T04:14:58+02:00 Movements and behavior of wild and head-started sea turtles Keinath, John A. 1993-01-01T08:00:00Z application/pdf https://scholarworks.wm.edu/etd/1539616710 https://doi.org/10.25773/v5-jbgm-bf23 https://scholarworks.wm.edu/context/etd/article/2277/viewcontent/9403265.pdf English eng W&M ScholarWorks https://scholarworks.wm.edu/etd/1539616710 doi:doi:10.25773/v5-jbgm-bf23 https://scholarworks.wm.edu/context/etd/article/2277/viewcontent/9403265.pdf © The Author Dissertations, Theses, and Masters Projects Fresh Water Studies Marine Biology Oceanography Remote Sensing text 1993 ftwilliammarycol https://doi.org/10.25773/v5-jbgm-bf23 2023-05-04T17:56:55Z Flipper-tagging, aerial surveys, and satellite telemetry was used to investigate the occurrence, migratory routes, distances traveled, swimming speeds, diving behavior, and the relation of water temperature to movements and timing of migration of wild loggerhead (Caretta caretta) and Kemp's ridley (Lepidochelys kempii) sea turtles. The behavior and movements of head-started loggerhead turtles was investigated with satellite telemetry and compared to wild turtles. Flipper-tagged loggerhead and Kemp's ridley turtles inhabit Chesapeake Bay during the warm months and many return in subsequent seasons. Aerial surveys showed that loggerhead turtles migrate from south of Cape Hatteras to northern waters during May and June, and return to the south of Cape Hatteras in the autumn, usually during October or November. Satellite telemetry supported aerial survey data, and showed that loggerhead and Kemp's ridley turtles migrate nearshore to the south of Cape Hatteras in the autumn, although one loggerhead became pelagic in the North Atlantic. Kemp's ridleys and some loggerheads migrate as far south as Florida for the winter months, while some loggerheads overwinter in the Gulf Stream off North Carolina. Loggerheads which returned to Chesapeake Bay used similar migratory routes during the northerly and southerly migrations. Loggerhead and Kemp's ridley turtles spent up to 94% of 12 h periods submerged (ridley mean = 81%, loggerhead mean = 88%), and mean dive durations ranged from 13 to 124 min (ridley mean = 66 min, loggerhead mean = 74 min), making 13 to 38 dives over a 12 h period (ridley mean = 25, loggerhead mean = 25). Temperatures measured by satellite transmitters attached to Kemp's ridley turtles ranged from 13-23 C (mean = 17 C), while loggerhead temperatures ranged from 6-33 C (mean = 20 C). Movements of turtles appear to be mitigated by temperatures about 15 C. Movements and diving behavior of head-started loggerheads were different than wild turtles. Some head-started turtles entered the Gulf Stream and traveled ... Text North Atlantic W&M ScholarWorks |
institution |
Open Polar |
collection |
W&M ScholarWorks |
op_collection_id |
ftwilliammarycol |
language |
English |
topic |
Fresh Water Studies Marine Biology Oceanography Remote Sensing |
spellingShingle |
Fresh Water Studies Marine Biology Oceanography Remote Sensing Keinath, John A. Movements and behavior of wild and head-started sea turtles |
topic_facet |
Fresh Water Studies Marine Biology Oceanography Remote Sensing |
description |
Flipper-tagging, aerial surveys, and satellite telemetry was used to investigate the occurrence, migratory routes, distances traveled, swimming speeds, diving behavior, and the relation of water temperature to movements and timing of migration of wild loggerhead (Caretta caretta) and Kemp's ridley (Lepidochelys kempii) sea turtles. The behavior and movements of head-started loggerhead turtles was investigated with satellite telemetry and compared to wild turtles. Flipper-tagged loggerhead and Kemp's ridley turtles inhabit Chesapeake Bay during the warm months and many return in subsequent seasons. Aerial surveys showed that loggerhead turtles migrate from south of Cape Hatteras to northern waters during May and June, and return to the south of Cape Hatteras in the autumn, usually during October or November. Satellite telemetry supported aerial survey data, and showed that loggerhead and Kemp's ridley turtles migrate nearshore to the south of Cape Hatteras in the autumn, although one loggerhead became pelagic in the North Atlantic. Kemp's ridleys and some loggerheads migrate as far south as Florida for the winter months, while some loggerheads overwinter in the Gulf Stream off North Carolina. Loggerheads which returned to Chesapeake Bay used similar migratory routes during the northerly and southerly migrations. Loggerhead and Kemp's ridley turtles spent up to 94% of 12 h periods submerged (ridley mean = 81%, loggerhead mean = 88%), and mean dive durations ranged from 13 to 124 min (ridley mean = 66 min, loggerhead mean = 74 min), making 13 to 38 dives over a 12 h period (ridley mean = 25, loggerhead mean = 25). Temperatures measured by satellite transmitters attached to Kemp's ridley turtles ranged from 13-23 C (mean = 17 C), while loggerhead temperatures ranged from 6-33 C (mean = 20 C). Movements of turtles appear to be mitigated by temperatures about 15 C. Movements and diving behavior of head-started loggerheads were different than wild turtles. Some head-started turtles entered the Gulf Stream and traveled ... |
format |
Text |
author |
Keinath, John A. |
author_facet |
Keinath, John A. |
author_sort |
Keinath, John A. |
title |
Movements and behavior of wild and head-started sea turtles |
title_short |
Movements and behavior of wild and head-started sea turtles |
title_full |
Movements and behavior of wild and head-started sea turtles |
title_fullStr |
Movements and behavior of wild and head-started sea turtles |
title_full_unstemmed |
Movements and behavior of wild and head-started sea turtles |
title_sort |
movements and behavior of wild and head-started sea turtles |
publisher |
W&M ScholarWorks |
publishDate |
1993 |
url |
https://scholarworks.wm.edu/etd/1539616710 https://doi.org/10.25773/v5-jbgm-bf23 https://scholarworks.wm.edu/context/etd/article/2277/viewcontent/9403265.pdf |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Dissertations, Theses, and Masters Projects |
op_relation |
https://scholarworks.wm.edu/etd/1539616710 doi:doi:10.25773/v5-jbgm-bf23 https://scholarworks.wm.edu/context/etd/article/2277/viewcontent/9403265.pdf |
op_rights |
© The Author |
op_doi |
https://doi.org/10.25773/v5-jbgm-bf23 |
_version_ |
1768371391895175168 |