Reference Library: Cod

Assessing the effects of ocean acidification in the Northeast US using an end-to-end marine ecosystem model

  • Posted on: Wed, 02/01/2017 - 15:03
  • By: jackie

The effects of ocean acidification on living marine resources present serious challenges for managers of these resources. An understanding of the ecosystem consequences of ocean acidification is required to assess tradeoffs among ecosystem components (e.g. fishery yield, protected species conservation, sensitive habitat) and adaptations to this perturbation. We used a ...

The swimming kinematics of larval Atlantic cod, Gadus morhua L., are resilient to elevated seawater pCO2

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Video analysis of Atlantic cod larvae (12 and 27 days post-hatch) showed no significant differences in most aspects of their swimming kinematics when they had been cultured under ocean acidification conditions. (Laboratory study)

Swimming performance in Atlantic Cod (Gadus morhua) following long-term (4–12 months) acclimation to elevated seawater pCO2

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Swimming performance of Atlantic cod was not impaired after they had lived under ocean acidification conditions for 4 or 12 months. They did not have different metabolic rates, critical swimming speeds, or aerobic scope compared to those that lived in non-acidified seawater. (Laboratory study)

The effect of carbon dioxide on growth of juvenile Atlantic cod Gadus morhua L.

  • Posted on: Mon, 06/13/2016 - 05:56
  • By: Anonymous

Juvenile Atlantic cod exposed to ocean acidification conditions for 55 days had reduced weight gain, growth rate, and condition. Growth trajectories of those living in medium and high acidification levels were 2.5 and 7.5 times lower than that of those in the low acidification level. The findings suggest that Atlantic ...

The swimming kinematics of larval Atlantic cod, Gadus morhua L., are resilient to elevated seawater pCO2

  • Posted on: Wed, 03/30/2016 - 15:29
  • By: petert

Kinematics of swimming behavior of larval Atlantic cod, aged 12 and 27 days post-hatch (dph) and cultured under three pCO2 conditions (control-370, medium-1800, and high-4200 μatm) from March to May 2010, were extracted from swim path recordings obtained using silhouette video photography. The swim paths were analyzed for swim duration, distance and speed, ...

Egg and early larval stages of Baltic cod, Gadus morhua, are robust to high levels of ocean acidification

  • Posted on: Wed, 03/30/2016 - 15:23
  • By: petert

The accumulation of carbon dioxide in the atmosphere will lower the pH in ocean waters, a process termed ocean acidification (OA). Despite its potentially detrimental effects on calcifying organisms, experimental studies on the possible impacts on fish remain scarce. While adults will most likely remain relatively unaffected by changes in ...

Severe tissue damage in Atlantic cod larvae under increasing ocean acidification

  • Posted on: Wed, 03/30/2016 - 15:21
  • By: petert

Ocean acidification, caused by increasing atmospheric concentrations of CO2, is one of the most critical anthropogenicthreats to marine life. Changes in seawater carbonate chemistry have the potential to disturb calcification, acid–base regulation, blood circulation and respiration, as well as the nervous system of marine organisms, leading to long-term effects such ...

Effects of ocean acidification on the calcification of otoliths of larval Atlantic cod Gadus morhua

  • Posted on: Wed, 03/30/2016 - 12:12
  • By: petert

The growth and development of the aragonitic CaCO3 otoliths of teleost fish could be vulnerable to processes resulting from ocean acidification. The potential effects of an increase in atmospheric CO2 on the calcification of the otoliths were investigated by rearing Atlantic cod Gadus morhua L. larvae in 3 pCO2 concentrations—control (370 µatm), medium (1800 µatm) ...

Effect of ocean acidification on marine fish sperm (Baltic cod: Gadus morhua)

  • Posted on: Tue, 03/29/2016 - 16:08
  • By: petert

Ocean acidification, as a consequence of increasing marine pCO2, may have severe effects on the physiology of marine organisms. However, experimental studies remain scarce, in particular concerning fish. While adults will most likely remain relatively unaffected by changes in seawater pH, early life-history stages are potentially more sensitive – particularly the ...