Navigation Links
North Atlantic fish populations shifting as ocean temperatures warm
Date:11/2/2009

p>

The researchers looked at where the fish were caught and their biomass, or the estimated total weight of the population, in each year of the survey. For each stock they estimated the center of abundance, average depth, the range or area that the stock occupied, and the average temperature at which each stock was found.

They also took into account fishing pressures on the species over time, as well as natural cycles in ocean temperature. Ocean temperatures have increased since the 1960s and 1970s, and the authors found significant changes in species distribution consistent with warming in 24 of the 36 stocks studied.

Ten of the 36 stocks examined had significant range expansion, while 12 had significant range contraction. Changes in a species range can be affected by both temperature changes and fishing pressure, with heavily fished stocks appearing more sensitive to climate change and often showing a larger shift. Seventeen of the 36 stocks occupied increasingly greater depths, and three stocks occupied increasingly shallower waters. However, the temperature at which each stock was found did not change over time, suggesting that fish are moving to remain within their preferred temperature range.

Fish species can respond to changes in ocean temperature in a variety of ways. The stock can move poleward to avoid warmer water temperatures, or move into deeper waters than they have previously been found. If fish cannot change their geographic or depth distribution, there may be changes in growth, reproduction and mortality rates. As a result, the size of the population may increase or decrease depending on the temperature preference of the species. Most species in the study were found to be responding to warming ocean temperatures in one of these ways.

"The fact that we see responses in many species consistent with what you would expect with warming, but in different types of species that have experienced different histori
'/>"/>

Contact: Shelley Dawicki
Shelley.Dawicki@noaa.gov
508-495-2378
NOAA Fisheries Northeast Fisheries Science Center
Source:Eurekalert

Page: 1 2 3

Related biology news :

1. Cogent Systems and Northrop Grumman Reach Agreement to Settle Automated Fingerprint Identification Technology Suit and Create Strategic Alliance
2. Cogent Systems and Northrop Grumman Reach Agreement to Settle Automated Fingerprint Identification Technology Suit and Create Strategic Alliance
3. North Americas northernmost lake affected by global warming
4. Three-way mating game of North American lizard found in distant European relative
5. Toxic releases down from North American industry leaders, increasing from other facilities
6. Northwestern to expose most deadly infectious diseases in 3-D
7. Wildfire drives carbon levels in northern forests
8. Cornell will host the Northeast Biofuel Summit, Nov. 11-13
9. Northwestern study looks at sensing, movement and behavior
10. Climate change predicted to drive trees northward
11. UT-Houstons Northrup and colleagues uncover genetic link to spina bifida
Post Your Comments:
*Name:
*Comment:
*Email:
(Date:4/17/2014)... channels are implicated in many serious conditions such as ... potential target for drug therapies. Unfortunately, there is still ... Cambridge research provides fresh and unexpected insight into the ... components - β-subunit molecules - which are responsible for ... published in the most recent edition of the ...
(Date:4/17/2014)... Researchers reporting in the Cell Press journal Current ... insects with rather novel sex lives. The Brazilian insects, ... genus Neotrogla , are the first example of ... reversal has been identified in several different animals, ... intromittent organ is also reversed," says Kazunori Yoshizawa from ...
(Date:4/17/2014)... whereby the genetic information of DNA is used ... have numerous different functions in living organisms. Messenger ... gene expression, by relating the genetic information of ... proteins. , By examining the different types ... organism at a given time, researchers can determine ...
Breaking Biology News(10 mins):Structure of sodium channels different than previously believed 2In sex-reversed cave insects, females have the penises 2Rapid and accurate mRNA detection in plant tissues 2
... 5,893 leaks from aging natural gas pipelines have been found ... from Duke University and Boston University. A dozen of ... Some manholes had methane concentrations as high as 500,000 parts ... than the threshold at which explosions can occur. ...
... Researchers from the University of Toronto (U of T) have ... claims an individual,s nutritional needs vary by blood type--is not ... One . , "Based on the data of ... ,blood-type, diet theory," said the senior author of the study, ...
... RICHLAND, Wash. -- Researchers simulating how certain bacteria run ... secret Nature uses for electron travel. The results are ... the ground, and will help researchers use them in ... electricity. Within the bacteria,s protein-based wire, molecular groups ...
Cached Biology News:5,900 natural gas leaks discovered under Washington, D.C. 25,900 natural gas leaks discovered under Washington, D.C. 3Popular blood type diet debunked 2Hugging hemes help electrons hop 2Hugging hemes help electrons hop 3Hugging hemes help electrons hop 4
(Date:1/15/2014)... Scottsdale, Arizona (PRWEB) January 15, 2014 ... growth for Scottsdale’s Brain State Technologies®. They saw continued ... University Medical Center who were awarded a $1 million ... papers published in “Brain and Behavior” a peer reviewed ...
(Date:1/15/2014)... 15, 2014 AudioNotch is the internet's ... for the treatment of tinnitus. Patients listen to sound ... over a period of weeks to months, their tinnitus volume ... two forms: Notched Music and Notched White Noise. Now, AudioNotch ...
(Date:1/14/2014)... PA (PRWEB) January 14, 2014 Date: Friday, ... , Location: Warrington Country Club, 1360 Almshouse Road, Warrington, Pa. ... national nonprofit organization solely dedicated to finding a cure for ... affected worldwide, will host its annual Crystal Ball on Friday, ...
(Date:1/14/2014)... San Diego, CA (PRWEB) January 14, 2014 ... based on the products of cells grown under simulated ... an international license agreement with Suneva Medical, Inc. for ... media (CCM). , This agreement is an ...
Breaking Biology Technology:Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 2Dynamic Innovative Technology Showcased at Scottsdale Company’s Open House 3Hepatitis B Foundation to Host Annual Crystal Ball Gala 2Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 2Histogen and Suneva Medical Expand License for Cell Conditioned Media-based Aesthetic Products Internationally 3
... containers at international ports could be the most affordable ... system are not carrying nuclear bombs, according to a ... meeting of the Institute for Operations Research and the ... scheme now in place that relies on targeting only ...
... New Delhi, Singapore and Washington DC (July 27, 2009) ... Medical Decision Making , a large-scale, covert anthrax ... even with an extremely effective public health response, primarily ... initiating a response to it. The article "Predicting ...
... Institute of Technology, collaborating with pediatric cardiologists and ... developed a tool for virtual surgery that allows ... different surgical approaches. By manipulating three-dimensional cardiac magnetic ... can compare how alternative approaches affect blood flow ...
Cached Biology Technology:Study on keeping nuclear bombs from US ports shows misplaced fear over cargo scanning cost 2Study on keeping nuclear bombs from US ports shows misplaced fear over cargo scanning cost 3Study on keeping nuclear bombs from US ports shows misplaced fear over cargo scanning cost 4Bioterrorism and disaster preparedness explored in special issue of Medical Decision Making 2MRI simulation of blood flow helps plan child's delicate heart surgery 2MRI simulation of blood flow helps plan child's delicate heart surgery 3MRI simulation of blood flow helps plan child's delicate heart surgery 4
... plates have low background fluorescence, minimal ... treated (or medium binding) polystyrene surface ... biomolecules through passive interactions,• Is ... large molecules, such as antibodies, that ...
... washer 100-240 V, is used for washing ... V-bottom wells. The immunowash microplate washer has ... to an accuracy of 0.1 mm for ... It can store up to 75 wash ...
... The Model 1575 immunowash microplate washer, ... microplates that have flat-, U-, or V-bottom ... and vertical needle positions to an accuracy ... aspiration, and overflow washing. It can store ...
... a compact benchtop and stackable multi-function ... with a large display screen to ... Air circulation inside to evenly distribute ... be easily calibrated from the microprocessor ...
Biology Products: