Department of Fisheries Oceanography Seminar Announcement-Lynn Waterhouse
When: Wednesday,
February 3, 2021
2:30 PM
-
3:30 PM
Where: > See description for location
Description: The School for Marine Science and Technology
Department of Fisheries Oceanography
Seminar Announcement
"One Fish, Two Fish: Using Integrated Models to Assess the Endangered Nassau Grouper (Epinephelus striatus)"
Lynn Waterhouse
Shedd Aquarium
Wednesday, February 3, 2021
2:30 pm to 3:30 pm
via Zoom
Abstract: Many large-bodied marine fishes that form spawning aggregations, such as the Nassau grouper (Epinephelus striatus), have suffered regional overfishing due to exploitation during spawning. In response, marine resource managers in many locations have established marine protected areas or seasonal closures to recover these overfished stocks. The challenge in assessing management effectiveness lies largely in the development of accurate estimates to track stock size through time. Fishermen in the Cayman Islands began reporting declines in their catches of Nassau grouper in the 1980s, spurring the Department of Environment to take action, however populations continued to decline. Following the rediscovery of an aggregation on the west end of Little Cayman, the Grouper Moon project was formed with the goal of providing the best science to ensure the conservation of Nassau grouper in the Cayman Islands. In order to estimate the size of the aggregation the project has utilized a mark recapture study along with video pans, combining these data in a Bayesian framework. Since 2001, the Nassau grouper population on Little Cayman has more than tripled in response to conservation efforts by the Cayman Island government. Census data from Cayman Brac, while more sparse, show a similar pattern. These findings demonstrate that spatial and seasonal closures aimed at rebuilding aggregation-based fisheries can foster conservation success.
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Zoom Link: https://umassd.zoom.us/j/93401753807?pwd=MHJVMkFDV3RQUFZhQS9lNEdTNWJlUT09
Meeting ID: 934 0175 3807
Passcode: 464610
+1 646 876 9923 US
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To access the live broadcasting, go to https://echo360.org/directLogin and click on "Alternate login". You will have to login as "smast@umassd.edu" with the password: smastumassd. After login you will have to click on ALL CLASSES (MAR 700-01 -
DEOS Seminar or MAR 700-02 - DFO Seminar) and click on the green LIVE streaming.
To view a video of an SMAST seminar (post-October 1, 2014), go to https://www.umassd.edu/smast/events/seminar-series/
and click on a highlighted title.
************************************************************************************
For additional information, please contact Sue Silva at s1silva@umassd.edu
Department of Fisheries Oceanography
Seminar Announcement
"One Fish, Two Fish: Using Integrated Models to Assess the Endangered Nassau Grouper (Epinephelus striatus)"
Lynn Waterhouse
Shedd Aquarium
Wednesday, February 3, 2021
2:30 pm to 3:30 pm
via Zoom
Abstract: Many large-bodied marine fishes that form spawning aggregations, such as the Nassau grouper (Epinephelus striatus), have suffered regional overfishing due to exploitation during spawning. In response, marine resource managers in many locations have established marine protected areas or seasonal closures to recover these overfished stocks. The challenge in assessing management effectiveness lies largely in the development of accurate estimates to track stock size through time. Fishermen in the Cayman Islands began reporting declines in their catches of Nassau grouper in the 1980s, spurring the Department of Environment to take action, however populations continued to decline. Following the rediscovery of an aggregation on the west end of Little Cayman, the Grouper Moon project was formed with the goal of providing the best science to ensure the conservation of Nassau grouper in the Cayman Islands. In order to estimate the size of the aggregation the project has utilized a mark recapture study along with video pans, combining these data in a Bayesian framework. Since 2001, the Nassau grouper population on Little Cayman has more than tripled in response to conservation efforts by the Cayman Island government. Census data from Cayman Brac, while more sparse, show a similar pattern. These findings demonstrate that spatial and seasonal closures aimed at rebuilding aggregation-based fisheries can foster conservation success.
************************************************************************************
Zoom Link: https://umassd.zoom.us/j/93401753807?pwd=MHJVMkFDV3RQUFZhQS9lNEdTNWJlUT09
Meeting ID: 934 0175 3807
Passcode: 464610
+1 646 876 9923 US
************************************************************************************
To access the live broadcasting, go to https://echo360.org/directLogin and click on "Alternate login". You will have to login as "smast@umassd.edu" with the password: smastumassd. After login you will have to click on ALL CLASSES (MAR 700-01 -
DEOS Seminar or MAR 700-02 - DFO Seminar) and click on the green LIVE streaming.
To view a video of an SMAST seminar (post-October 1, 2014), go to https://www.umassd.edu/smast/events/seminar-series/
and click on a highlighted title.
************************************************************************************
For additional information, please contact Sue Silva at s1silva@umassd.edu
Contact: > See Description for contact information
Topical Areas: School for Marine Sciences and Technology, SMAST Seminar Series