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Sökning: WFRF:(Thiyagarajan V) > (2014) > Interactive effects...

Interactive effects of ocean acidificaiton, elevated temperature, and reduced salinity on early-life stages of the Pacific oyster

Ko, W.K.K.G. (författare)
Dineshram, R. (författare)
Chan, V. (författare)
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Campanati, C. (författare)
Havenhand, Jonathan N., 1959 (författare)
Gothenburg University,Göteborgs universitet,Institutionen för biologi och miljövetenskap, Tjärnö marinbiologiska laboratorium,Department of Biological and Environmental Sciences, Tjärnö Marine Biological Laboratory
Thiyagarajan, V. (författare)
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 (creator_code:org_t)
2014-08-18
2014
Engelska.
Ingår i: Environmental Science and Technology. - : American Chemical Society (ACS). - 0013-936X .- 1520-5851. ; 48:17, s. 10079-10088
  • Tidskriftsartikel (refereegranskat)
Abstract Ämnesord
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  • Ocean acidification (OA) effects on larvae blamed for the rapidly declining oyster production in the Pacific Northwest region of the United States. This is a serious issue in China which produces over 80% of the world’s oysters. Because climate-related stressors rarely act alone, we need to consider OA in combination with warming and reduced salinity. Here, the interactive effects of these three climate-related stressors on the larval growth of Crassostrea gigas were examined. Larvae were cultured in combinations of temperature (24oC and 30oC), pH (pH 8.1 and 7.4), and salinity (15 and 25 psu) for 58 days to the early juvenile stage. Decreased pH (pH 7.4), elevated temperature (30oC) and reduced salinity (15 psu) significantly delayed pre- and post-settlement growth. Elevated temperature lowered the larval lipid index, a proxy for physiological quality, and rescued the negative effects of decreased pH on attachment and metamorphosis only in a salinity of 25 psu. The negative effects of multiple stressors on larval metamorphosis were not due to poor physiological quality, reduced size, or depleted lipid reserves at the time of metamorphosis. Our results support the hypothesis that the C.gigas larvae are vulnerable to the interactions of OA with reduced salinity and warming in Yellow Sea coastal waters now and in the future.

Ämnesord

NATURVETENSKAP  -- Biologi -- Ekologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Ecology (hsv//eng)
NATURVETENSKAP  -- Biologi -- Zoologi (hsv//swe)
NATURAL SCIENCES  -- Biological Sciences -- Zoology (hsv//eng)
NATURVETENSKAP  -- Geovetenskap och miljövetenskap -- Annan geovetenskap och miljövetenskap (hsv//swe)
NATURAL SCIENCES  -- Earth and Related Environmental Sciences -- Other Earth and Related Environmental Sciences (hsv//eng)

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