Navigation Links
Rising ocean temperatures, pollution have oysters in hot water

n than the unexposed group, but were either unable to obtain enough oxygen, convert the oxygen they obtained to energy, or both. The researchers drew this conclusion, Lannig said, based on measurements of respiratory activity, the animal's blood oxygen content and mitochondrial function.

The 28°C cadmium-exposed group spent more time in respiratory activity, trying to take in oxygen. Their shells were open significantly longer than any of the other groups, a measure of the amount of time they spend "breathing." (When oysters open their shells, they are taking in oxygen. Oxygen flow stops when they close the shell.)

The researchers also examined the effect of cadmium and temperature on the mitochondria of the oyster's cells. The mitochondria are the cell's power plant, producing energy for the oyster, including for ventilation and circulation.

"We found that mitochondria are very sensitive to cadmium at high temperatures," Lannig noted, suggesting that the higher temperature and cadmium exposure negatively affect the mitochondria's ability to produce energy.

Blood oxygen falls

In a second experiment, the researchers acclimated two groups of oysters to 20°C water. One group was exposed to cadmium. Both groups were then subjected to an acute temperature increase of 4°C overnight (to 24°C).

"Here we saw that the cadmium-exposed oysters showed a decrease in blood oxygen content with the higher temperature, but not the control group that was not exposed to cadmium," Lannig said. Once again, this shows that the combination of temperature and pollution combine to intensify the stress placed on the oyster's physiological system.

In future experiments, the researchers will try to determine whether the combination of temperature and pollution is preventing oysters from obtaining enough oxygen or whether it is interfering with the animal's ability to use the oxygen it obtains, Lannig said. These experi
'"/>

Source:American Physiological Society


Page: 1 2 3 4

Related biology news :

1. NASA study finds snow melt causes large ocean plant blooms
2. Anammox bacteria produce nitrogen gas in oceans snackbar
3. Elephant seal pups suffer from ocean warming
4. Currents could disrupt ocean food chain
5. Scientists discover global pattern of big fish diversity in open oceans
6. Microbe has huge role in ocean life, carbon cycle
7. Genetics links whale to two different ocean basins
8. Climate change will affect carbon sequestration in oceans, model shows
9. Asleep in the deep: Model helps assess ocean-injection strategy for combating greenhouse effect
10. Understanding the oceans microbes is key to the Earths future
11. Scientists discover interplay between genes and viruses in tiny ocean plankton
Post Your Comments:
*Name:
*Comment:
*Email:
TAG: Rising ocean temperatures pollution have oysters hot water

(Date:9/12/2014)... 12, 2014 ... has announced the addition of the ... report to their offering. ,     (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ... is a professional and in-depth study on ... lock industry. , ,The report provides a ...
(Date:9/12/2014)... Research and Markets ( ... the  "Global Facial Recognition Market (2D Facial ... - Industry Analysis, Size, Share, Growth, Trends ... their offering.      (Logo: http://photos.prnewswire.com/prnh/20130307/600769) ... was valued at USD 1.17 billion in ...
(Date:9/12/2014)... Sept. 12, 2014 Research and Markets ... IC Card Management System Industry Report 2014" report ... Card Management System Industry Report 2014 is a professional ... global IC card management system. The report ... classifications, applications and industry chain structure. The IC card ...
Breaking Biology News(10 mins):Global Fingerprint Lock Industry Report 2014 2Global Facial Recognition Market (2D Facial Recognition, 3D Facial Recognition, and Facial Analytics) - Trends and Forecast to 2020 2Global Facial Recognition Market (2D Facial Recognition, 3D Facial Recognition, and Facial Analytics) - Trends and Forecast to 2020 3Global IC Card Management System Industry Report 2014 2
... Ivaska (University of Turku and VTT Technical Research Centre of ... National Institute for Health and Welfare) have discovered that the ... a leading journal, the study concludes that SHARPIN regulates the ... prostate cancer cells. It is likely that the discovery will ...
... risk of extinction is a complicated task, especially for species ... University of Georgia and Tulane University have developed a mathematical ... appears in the early online edition of the Royal Society ... for a lot of species, we don,t know very much ...
... might lead to the development of better intervention methods, according ... published in the journal Substance Use & Misuse ... prompted college students to recall their smoking experience, and that ... and on weekends. "Students are using social events ...
Cached Biology News:New model more accurately describes migratory animals' extinction risk 2Research reveals when and why students smoke in effort to help them quit 2
(Date:9/14/2014)... MD (PRWEB) September 15, 2014 ... be held on Tuesday, October 21, 2014, from 12:00 ... overview of the program’s innovative curriculum and practice-oriented instruction, ... a graduate degree can help advance their career in ... RSVP online . , About UMBC’s Biotechnology ...
(Date:9/14/2014)... regulate protein functions in a wide variety of ways, ... a protein can take on another form and perform ... that fold wrongly can cause serious diseases such as ... also have a tendency to "infect" other molecules of ... fibrils or plaques. These amyloids can damage cells and ...
(Date:9/14/2014)... ingenious when it comes to survival strategies. They often ... environment, for example during treatment with antibiotics. A biofilm ... protective slime capsule consisting of sugar chains and "curli". ... for the first time created a detailed three-dimensional image ... cross the bacterial cell wall, a crucial step in ...
(Date:9/13/2014)... Phoenixville, PA (PRWEB) September 13, 2014 ... medical device innovations, is proud to announce the successful ... Health Network bariatric surgeons Leonardo Claros, MD, FACS, FAMBS, ... ViSiGi 3D™ Sleeve Gastrectomy Calibration System. , This ... a postgraduate course of more than four hundred surgeons ...
Breaking Biology Technology:UMBC Biotechnology Graduate Programs’ Virtual Info Session, October 21, 2014 2Measuring modified protein structures 2Measuring modified protein structures 3New insights in survival strategies of bacteria 2Boehringer Laboratories, Inc. Announces Live Surgery Using Innovative System to Calibrate Sleeve Gastrectomy 2
... Press Ganey Associates, Inc. has announced its elite class ... the first-ever Summit and Top Improver awards for clinical ... Medical Centers. Press Ganey, the health ... more than 10,000 health care organizations worldwide to create ...
... Calif., Nov. 15, 2011 Quest Diagnostics Incorporated (NYSE: ... diagnostic testing, information and services, today announced that its ... Cytomegalovirus (CMV) molecular test kit on the 3M™ Integrated ... The test is designed to enable hospital labs to ...
... AURORA, Colo., Nov. 15, 2011 In a strategic ... Redevelopment Authority (FRA) has completed a regimen of planning ... allocation of resources going forward. The announcement is made ... "Our first tactic in refocus involves augmenting our board ...
Cached Biology Technology:Nation's Best Health Care Organizations for Patient Satisfaction, Core Measures Honored by Press Ganey 2Nation's Best Health Care Organizations for Patient Satisfaction, Core Measures Honored by Press Ganey 3Quest Diagnostics CE Marks Simplexa™ Test for Cytomegalovirus for Sale in Europe 2Quest Diagnostics CE Marks Simplexa™ Test for Cytomegalovirus for Sale in Europe 3Fitzsimons Redevelopment Authority Rolls Out First Phase of Strategic Refocus With Appointment of Four Key Leaders in The Bioscience Industry to Its Board of Directors 2
... Spin Kit is an advanced system for isolating DNA ... can be used directly for any downstream application. ... ready to use in 56 minutes Low melting ... TAE and TBE gels No specialised equipment required ...
... incubators with rotators. Graduated, 35 mm ... plug-seal screw-cap with O-ring for a ... to accept different size hybridization membranes. ... separately. • Comp Dim: tube L ...
... The SpinPrep Gel DNA Kit enables efficient extraction of ... in size from agarose gels. The procedure uses GelMelt ... of the DNA to a silica membrane in a ... DNA is eluted in low-salt buffer. Each spin column ...
... is ideal for the ... (1D electrophoresis, 2D electrophoresis, ... Pharmacokinetics & Toxicology (whole ... chromatography); Physical and Material ...
Biology Products: