Reproductive Periodicity of the Pelagic Stingray, Pteroplatytrygon violacea, in the Western North Atlantic Ocean
The pelagic stingray is a moderately sized stingray in the Family Dasyatidae and is the only dasyatid that lives in epipelagic waters. Our current knowledge on the reproductive cycle of the pelagic stingray is limited. It is believed that the pelagic stingray reaches sexual maturity at two years in...
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ftnsoutheastern:oai:nsuworks.nova.edu:occ_facpresentations-1258 2023-05-15T17:30:51+02:00 Reproductive Periodicity of the Pelagic Stingray, Pteroplatytrygon violacea, in the Western North Atlantic Ocean Tousignant, Mike Kerstetter, David W. 2010-07-11T07:00:00Z application/pdf https://nsuworks.nova.edu/occ_facpresentations/200 unknown NSUWorks https://nsuworks.nova.edu/occ_facpresentations/200 Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures Marine Biology Oceanography and Atmospheric Sciences and Meteorology poster 2010 ftnsoutheastern 2022-04-10T21:30:52Z The pelagic stingray is a moderately sized stingray in the Family Dasyatidae and is the only dasyatid that lives in epipelagic waters. Our current knowledge on the reproductive cycle of the pelagic stingray is limited. It is believed that the pelagic stingray reaches sexual maturity at two years in both sexes, with a gestation period of two to three months. Due to the short gestation period, it has been suggested that the pelagic stingray has either an annual or biannual reproductive periodicity. Specimens of mixed sexes and sizes were collected as bycatch in the pelagic longline fishery from the western North Atlantic, mainly in the South Atlantic Bight (SAB) and Florida East Coast (FEC) NOAA Fisheries pelagic statistical areas. In all, the reproductive tracts of 54 sexually mature males, one immature male, 65 sexually mature females, and two immature females were collected during the period of August 2008 to December 2009. Adult females are gravid in the months of August to February. Adult males had greater testicular weight from August to October. Females collected from March to July were not observed to be gravid while males collected during the same period had significantly (t = 8.2638, P 0.0001) less testicular weight. These data suggest a possible reproductive cycle starting around August and lasting until February for this population. Still Image North Atlantic Nova Southeastern University: NSU Works |
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Open Polar |
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Nova Southeastern University: NSU Works |
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ftnsoutheastern |
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unknown |
topic |
Marine Biology Oceanography and Atmospheric Sciences and Meteorology |
spellingShingle |
Marine Biology Oceanography and Atmospheric Sciences and Meteorology Tousignant, Mike Kerstetter, David W. Reproductive Periodicity of the Pelagic Stingray, Pteroplatytrygon violacea, in the Western North Atlantic Ocean |
topic_facet |
Marine Biology Oceanography and Atmospheric Sciences and Meteorology |
description |
The pelagic stingray is a moderately sized stingray in the Family Dasyatidae and is the only dasyatid that lives in epipelagic waters. Our current knowledge on the reproductive cycle of the pelagic stingray is limited. It is believed that the pelagic stingray reaches sexual maturity at two years in both sexes, with a gestation period of two to three months. Due to the short gestation period, it has been suggested that the pelagic stingray has either an annual or biannual reproductive periodicity. Specimens of mixed sexes and sizes were collected as bycatch in the pelagic longline fishery from the western North Atlantic, mainly in the South Atlantic Bight (SAB) and Florida East Coast (FEC) NOAA Fisheries pelagic statistical areas. In all, the reproductive tracts of 54 sexually mature males, one immature male, 65 sexually mature females, and two immature females were collected during the period of August 2008 to December 2009. Adult females are gravid in the months of August to February. Adult males had greater testicular weight from August to October. Females collected from March to July were not observed to be gravid while males collected during the same period had significantly (t = 8.2638, P 0.0001) less testicular weight. These data suggest a possible reproductive cycle starting around August and lasting until February for this population. |
format |
Still Image |
author |
Tousignant, Mike Kerstetter, David W. |
author_facet |
Tousignant, Mike Kerstetter, David W. |
author_sort |
Tousignant, Mike |
title |
Reproductive Periodicity of the Pelagic Stingray, Pteroplatytrygon violacea, in the Western North Atlantic Ocean |
title_short |
Reproductive Periodicity of the Pelagic Stingray, Pteroplatytrygon violacea, in the Western North Atlantic Ocean |
title_full |
Reproductive Periodicity of the Pelagic Stingray, Pteroplatytrygon violacea, in the Western North Atlantic Ocean |
title_fullStr |
Reproductive Periodicity of the Pelagic Stingray, Pteroplatytrygon violacea, in the Western North Atlantic Ocean |
title_full_unstemmed |
Reproductive Periodicity of the Pelagic Stingray, Pteroplatytrygon violacea, in the Western North Atlantic Ocean |
title_sort |
reproductive periodicity of the pelagic stingray, pteroplatytrygon violacea, in the western north atlantic ocean |
publisher |
NSUWorks |
publishDate |
2010 |
url |
https://nsuworks.nova.edu/occ_facpresentations/200 |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_source |
Marine & Environmental Sciences Faculty Proceedings, Presentations, Speeches, Lectures |
op_relation |
https://nsuworks.nova.edu/occ_facpresentations/200 |
_version_ |
1766127967795150848 |