HOME >> BIOLOGY >> NEWS
University of Rhode Island fisheries oceanographers study the effects of predator-prey interactions in the Georges Bank fish community

Fisheries oceanographers Tien-Shui Tsou and Jeremy S. Collie at the University of Rhode Islands Graduate School of Oceanography are estimating fishing and predation mortalities by year and age group of predator and prey species on Georges Bank using Multispecies Virtual Population Analysis (MSVPA).

This method of analysis integrates virtual population analysis with data on the food consumption rates and diet composition of the major predator and prey species.

In a recent study, reported in the Canadian Journal of Fisheries and Aquatic Sciences, Tsou and Collie tested the reliability of MSVPA by applying the method to the highly productive and long exploited Georges Bank fish community. Over the past several decades the structure of the Georges Bank fish community has changed significantly, with increases in sharks, rays, herring, and mackerel and decreases in groundfish and flounders.

As part of NOAAs Coastal Ocean Program, Georges Bank Predation Study, Tsou and Collie constructed a nine-species MSVPA of the fish community on Georges Bank to investigate the feeding dynamics between predator and prey. The species included cod, haddock, herring, yellowtail flounder, silver hake, mackerel, sandlance, spiny dogfish, and winter skate. To construct their model, they used catch and diet data gathered by the Northeast Fisheries Science Center from 1978-1992. The diet data come from thousands of stomach samples from marine fish that have been collected along the northeast coast of North America.

The results of the MSVPA agree with previous conclusions that predation is a dominant source of mortality in the Georges Bank fish community. Cod and silver hake were the most important predators, but have been replaced by sharks and rays as the dominant fish eaters in more recent years. The predator diet composition shifted to herring and mackerel as these prey species became more abundant in the late 1990s, but the predation pressure was insuffic
'"/>

Contact: Lisa Cugini
lcugini@gso.uri.edu
401-874-6642
University of Rhode Island
4-Dec-2001


Page: 1 2

Related biology news :

1. Indiana University, EPA to study airborne PCBs
2. University of Alberta researcher looks for clues to mysterious disease
3. Northeastern University receives $12.4 million NSF grant for creation of nanomanufacturing institute
4. Washington University in St. Louis leads group studying aging process
5. Tufts University establishes $4 million dollar tissue engineering resource center
6. Case for IBD combination therapy comes from research at Baylor, MIT and Hebrew University
7. As informatics grows, Indiana University helps set research agenda
8. University of Arizona licenses patent for natural fungicide
9. Washington University in St. Louis plays key role in sequencing moss genome
10. University of Pittsburgh receives $10 million grant for head and neck cancer
11. Clemson University spin-off uses corn to make plastics, provide cleaner air

Post Your Comments:
*Name:
*Comment:
*Email:


(Date:4/4/2019)... ... April 02, 2019 , ... Orbsen ... stromal cell immunotherapies, announced it will move its base of operations from the ... the University’s newly created biotechnology park in Galway, Ireland. , “With four clinical ...
(Date:4/1/2019)... ... ... Stay on top of current hot topics through free webinars presented by leading experts ... so be sure to register today to save your place! Participate in the discussion ... upcoming webinars: , CLINICAL TRIALS , April 2 – They’re Talking. Are You Listening? ...
(Date:3/29/2019)... ... March 29, 2019 , ... GenCure has selected G-CON Manufacturing, ... facility. The new facility, which will anchor the VelocityTX innovation center in San ... manufacturing capabilities to support clinical cell therapy trials. GenCure is a subsidiary of ...
Breaking Biology News(10 mins):
(Date:4/8/2019)... ... April 08, 2019 , ... CallTower, a ... the launch of their app integration solution, CT Cloud Unite. CT Cloud ... while using CT Cloud Voice and Skype for Business solutions. This robust integration ...
(Date:4/4/2019)... BOSTON (PRWEB) , ... April 03, 2019 , ... ... leaders together through intimate off-the-record collaboration and dialogue, today announces its Boston CEO ... CEO offers insights into the industry’s challenges and opportunities with high-level panels and ...
(Date:3/27/2019)... ... 27, 2019 , ... Lachman is sponsoring the event on April 1-4, where ... Ireland. The executive team on site will be available to discuss strategies and tactics ... agenda this year. , Executives from Lachman participating at this year’s conference include Fran ...
(Date:3/19/2019)... ... March 19, 2019 , ... Cirrascale Cloud ... it has extended its managed services offering to include NVIDIA® DGX™ systems. The ... part of the NVIDIA DGX-Ready Data Center program to deliver a Zero DevOps ...
Breaking Biology Technology:
Cached News: