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Combined effects of ocean acidification and temperature on larval and juvenile growth, development and swimming performance of European sea bass

Abstract.

"Ocean acidification and ocean warming (OAW) are simultaneously occurring and could pose ecological challenges to marine life, particularly early life stages of fish that, although they are internal calcifiers, may have poorly developed acid-base regulation. This study assessed the effect of projected OAW on key fitness traits (growth, development and swimming ability) in European sea bass (Dicentrarchus labrax) larvae and juveniles. [...]"

Source: PLoS One
Authors: Louise Cominassi etal.
DOI: 10.1371/journal.pone.0221283

Read the full article here.


Hydrographic and fish larvae distribution during the “Godzilla El Niño 2015-2016” in the shallow oxygen minimum zone of the eastern Pacific Ocean

Abstract.

"Based on hydrographic data and vertical distributions of tropical species of fish larvae (Diogenichthys laternatus, Vinciguerria lucetia, Bregmaceros bathymaster and Auxis spp), effects of “Godzilla El Niño 2015-2016” in the shallow oxygen minimum zone off Mexico were analyzed. Zooplankton samples were collected during four cruises, before (February 2010, April 2012) and during (June 2015, March 2016) the warm event. Temporal series of sea surface temperature revealed that June 2015 was the warmest June of the last years. Conservative Temperature was > 2°C higher than normal in the surface mixed layer, and the suboxic layer (4.4 µmol/kg) reached as shallow as 100 m depth. Unexpected results were that larval abundances were relatively high during the warm event, unlike zooplankton volumes, which declined.[...]"

 

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