Department of Fisheries Oceanography / SMAST seminar - March 28, 2018 - Dr. Adrian Jordaan
When: Wednesday,
March 28, 2018
2:30 PM
-
3:30 PM
Where: New Bedford New Bedford, MA
Description: Department of Fisheries Oceanography
River Herring Population Dynamics in Coastal Ecosystems
Dr. Adrian Jordaan
Assistant Professor, Environmental Conservation
University of Massachusetts Amherst
Wednesday, March 28, 2018
2:30 pm - 3:30 pm
SMAST-E rm. 101/102
836 South Rodney French Boulevard, New Bedford, MA
Abstract: River herring (collectively alewife Alosa pseudoharengus and blueback herring Alosa aestivalis), influence ecosystem and nutrient dynamics through predation on zooplankton and by a suite of piscivorous species. Impacts of alewife on freshwater lakes have demonstrated that these effects can cascade through the ecosystem, in particular by shaping zooplankton communities. However, anadromous river herring populations have undergone long-term declines, interfering with these processes at landscape scales. Freshwater productivity and ocean processes remain poorly understood, and this inhibits identifying the correct prescriptions towards recovery. From a scientific perspective, a large list of data gaps exists around which for form research projects. I will describe a series of multiple lake surveys, paired (alewife present/absent) lake and laboratory experiments, and modeling efforts that attempt to fill these gaps. This presentation will cover the historical declines of anadromous populations, the ecosystem consequences of the declines, and then will shift to understanding current and future threats brought on by climate change and other factors. Along the way I will attempt to shed light on data gaps we are filling as we move towards a more complete view of river herring life histories and their role in coastal environments.
To access the live broadcasting, go to https://echo360.org/ 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 more information, please contact cfox@umassd.edu
River Herring Population Dynamics in Coastal Ecosystems
Dr. Adrian Jordaan
Assistant Professor, Environmental Conservation
University of Massachusetts Amherst
Wednesday, March 28, 2018
2:30 pm - 3:30 pm
SMAST-E rm. 101/102
836 South Rodney French Boulevard, New Bedford, MA
Abstract: River herring (collectively alewife Alosa pseudoharengus and blueback herring Alosa aestivalis), influence ecosystem and nutrient dynamics through predation on zooplankton and by a suite of piscivorous species. Impacts of alewife on freshwater lakes have demonstrated that these effects can cascade through the ecosystem, in particular by shaping zooplankton communities. However, anadromous river herring populations have undergone long-term declines, interfering with these processes at landscape scales. Freshwater productivity and ocean processes remain poorly understood, and this inhibits identifying the correct prescriptions towards recovery. From a scientific perspective, a large list of data gaps exists around which for form research projects. I will describe a series of multiple lake surveys, paired (alewife present/absent) lake and laboratory experiments, and modeling efforts that attempt to fill these gaps. This presentation will cover the historical declines of anadromous populations, the ecosystem consequences of the declines, and then will shift to understanding current and future threats brought on by climate change and other factors. Along the way I will attempt to shed light on data gaps we are filling as we move towards a more complete view of river herring life histories and their role in coastal environments.
To access the live broadcasting, go to https://echo360.org/ 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 more information, please contact cfox@umassd.edu
Contact: > See Description for contact information
Topical Areas: School for Marine Sciences and Technology, SMAST Seminar Series