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:10/4/2019)... ... October 03, 2019 , ... Mount Sinai researchers have discovered ... down from one generation to the next. In a study published in Nature Structural ... of this enzyme, leading to cancers and other diseases. , “DNA polymerase delta serves ...
(Date:9/30/2019)... ... September 30, 2019 , ... Foresight Institute, a leading think ... technologies, announced the winners for the 2019 Foresight Institute Feynman Prizes. These are ... nanotechnology/molecular manufacturing. , Established in 1993 and named in honor of pioneer physicist ...
(Date:9/30/2019)... (PRWEB) , ... September 30, ... ... leading think tank, research, and public interest organization focused on molecular manufacturing ... Student Prize. , The Award recognizes the College graduate or undergraduate student ...
Breaking Biology News(10 mins):
(Date:9/24/2019)... ... September 24, 2019 , ... ... has completed training and site qualification for clinical trial sites and physician investigators. ... screening of potential clinical trial participants. , Clinical trial sites are currently located ...
(Date:9/22/2019)... ... 2019 , ... ZRT Laboratory is pleased to ... . BDNF plays a vital role in protecting existing neurons in the central ... in the brain involved in learning, memory, and higher thinking. Low serum levels ...
(Date:9/17/2019)... , ... September 17, 2019 , ... ... improve success in chronic diseases, announces today that the U.S. Patent and Trademark ... combinatorial genetic algorithm to rank drug class recommendations for hypertension treatment. , ...
(Date:9/17/2019)... ... 2019 , ... A new episode of Advancements with Ted ... local listings for more information on this program. , The show will explore ... Singapore dedicated to developing advanced diagnostic technologies for the masses. Viewers will learn ...
Breaking Biology Technology:
Cached News: