Department of Fisheries Oceanography Seminar Announcement-Susan Lowerre-Barbieri
When: Wednesday,
January 27, 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
"The reproductive resilience paradigm: integrating behavior into understanding reproductive potential in marine fish"
Susan Lowerre-Barbieri
University of Florida & Florida Fish & Wildlife Commission
Wednesday, January 27, 2021
2:30 pm to 3:30 pm
via Zoom
Abstract:
A population’s reproductive resilience is driven by the underlying traits in its spawner-recruit system, selected for over evolutionary time scales, and the ecological context within which it is operating. Traditionally, marine fish populations have been assumed to be relatively open and well mixed, with homogenous vital rates and stocks defined over large geographic scales. It has also been assumed that fecundity drives population growth, resulting in a strong relationship between adult abundance and productivity, similar to harvested terrestrial species. However, most marine fish are pelagic spawners and use disparate habitat depending on life stage, with spawning site selection and diversity affecting later spatial components of the life cycle and the productivity and vulnerability of the stock to spatial disturbances, climate change, and fishing. In this talk I review the assumptions underlying how we traditionally measure reproductive potential versus drivers of reproductive success (i.e., producing offspring which survive to reproductive age), which has two component parts: (1) reproductive output or rate and (2) survival rate of that output. I present the reproductive resilience paradigm and the range of traits affecting reproductive success. I then draw on a series of studies on two reef fish species (red snapper and gag grouper) with varying reproductive resilience but similar fecundity to demonstrate the importance of spatio-temporal reproductive behavior and gender system to stock productivity and effective management.
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
"The reproductive resilience paradigm: integrating behavior into understanding reproductive potential in marine fish"
Susan Lowerre-Barbieri
University of Florida & Florida Fish & Wildlife Commission
Wednesday, January 27, 2021
2:30 pm to 3:30 pm
via Zoom
Abstract:
A population’s reproductive resilience is driven by the underlying traits in its spawner-recruit system, selected for over evolutionary time scales, and the ecological context within which it is operating. Traditionally, marine fish populations have been assumed to be relatively open and well mixed, with homogenous vital rates and stocks defined over large geographic scales. It has also been assumed that fecundity drives population growth, resulting in a strong relationship between adult abundance and productivity, similar to harvested terrestrial species. However, most marine fish are pelagic spawners and use disparate habitat depending on life stage, with spawning site selection and diversity affecting later spatial components of the life cycle and the productivity and vulnerability of the stock to spatial disturbances, climate change, and fishing. In this talk I review the assumptions underlying how we traditionally measure reproductive potential versus drivers of reproductive success (i.e., producing offspring which survive to reproductive age), which has two component parts: (1) reproductive output or rate and (2) survival rate of that output. I present the reproductive resilience paradigm and the range of traits affecting reproductive success. I then draw on a series of studies on two reef fish species (red snapper and gag grouper) with varying reproductive resilience but similar fecundity to demonstrate the importance of spatio-temporal reproductive behavior and gender system to stock productivity and effective management.
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