HOME >> BIOLOGY >> NEWS
Increased temperature may prevent winter flounder from rebounding in east coast estuaries

Increased levels of water temperature can have critical effects on predator-prey interactions in the marine environment. Increased water temperature, for example, could be beneficial to a predator if the primary effect were to accelerate its level of metabolism, and thus enhance foraging activity. On the other hand, warm temperatures could also enhance the metabolism of the prey, increasing its activity, mobility, and ability to escape from predators.

In a recent issue of the Marine Ecology Progress Series, an article by URI Graduate School of Oceanography fisheries biologists David L. Taylor and Jeremy S. Collie describes the effect of temperature on the feeding behavior of sand shrimp preying on juvenile winter flounder. The study was funded by the National Oceanic and Atmospheric Administration's Cooperative Marine Education and Research program.

Predation by the sand shrimp has been implicated as one of the most significant sources of mortality for recently hatched metamorphosed winter flounder. Experiments conducted by Taylor and Collie found that shrimp consumption rates on post-settlement flounder significantly increased with increasing flounder density, irrespective of water temperature. At low flounder densities, however, significantly more flounder were consumed at warm temperatures than at cold temperatures (16 C and 10 C, respectively, or 61 F and 50 F). Model estimates and visual observations of shrimp foraging behavior suggest that the variable feeding rates at different temperatures are the result of cold temperatures decreasing predator activity at low flounder densities, and conversely, shrimp maintaining high predation rates at low flounder densities when exposed to warm temperatures. These findings indicate that shrimp are capable of driving flounder populations to local extinction during warm water conditions.

The population abundance of winter flounder has declined significantly in parts of its geographic range sin
'"/>

Contact: Lisa Cugini
lcugini@gso.uri.edu
401-874-6642
University of Rhode Island
17-Feb-2004


Page: 1 2

Related biology news :

1. Increased atmospheric carbon dioxide promotes algal growth
2. Get your blood moving: Increased blood flow could lead to healthier blood vessels
3. Increased bone mass in a calcitonin knockout mouse full of surprises
4. Increased fiber curbs appetite in women
5. Increased CO2 levels are mixed blessing for agriculture
6. Increased awareness of stroke symptoms could dramatically reduce stroke disability
7. Increased use of chemicals in agriculture worldwide seen as major environmental threat
8. Increased consumption of soy protein may help lower cholesterol
9. Increased consumption of whole grain foods associated with decreased risk of stroke
10. Increased risk of wheeze and asthma in young children whose mothers smoke during the pregnancy
11. Increased production of antibiotics in space reported by University of Colorado researchers

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


(Date:9/3/2020)... ... September 03, 2020 , ... Litmus Health , the ... assessment of the company’s security practices has been completed. The assessment deemed Litmus ... comprehensive evaluation reviewed Litmus’ processes and systems, assessing them to see whether they ...
(Date:8/26/2020)... ... 2020 , ... Catalent, the leading global provider of advanced ... and consumer health products, today announced that two Catalent Biologics experts will present ... between Aug. 31 – September 4, 2020. , On Wednesday, Sept. 2 at ...
(Date:8/21/2020)... LEXINGTON, Mass. (PRWEB) , ... August 18, 2020 ... ... novel approaches to cell therapy, today announced that the U.S. Food and Drug ... evaluation of Sentien’s lead asset, SBI-101, for the treatment of severe COVID-19. Approval ...
Breaking Biology News(10 mins):
(Date:8/12/2020)... ... August 12, 2020 , ... Inc. magazine today revealed that ... FDA compliance consulting has been named on its annual Inc. 5000 list, the ... unique look at the most successful companies within the American economy’s most dynamic ...
(Date:7/31/2020)... ... July 29, 2020 , ... G-CON Manufacturing, ... its new tagline, “BUILDING FOR LIFE.” The adoption of this taglines comes at ... requiring fast track capacity to provide patients with urgently needed vaccines and other ...
(Date:7/31/2020)... ... July 29, 2020 , ... ... the top radiation centers in 16 countries, has reached its 20th anniversary of ... now in routine use at top universities including University of Pennsylvania, University of ...
(Date:7/18/2020)... ... July 16, 2020 , ... ... the early detection and prevention of high-burden diseases, and Centric Consulting, a business ... healthcare organizations to utilize existing data in order to identify and prioritize patients ...
Breaking Biology Technology:
Cached News: