Long-term effects of predicted future seawater CO2 conditions on the survival and growth of the marine shrimp Palaemon pacificus

By H. Kurihara, M. Matsui, H. Furukawa, M. Hayashi, A. Ishimatsu. 2008

184 citations recorded by the source corpus.

The increasing atmospheric concentration of carbon dioxide (CO2) has been driving all marine organisms to live in increasingly acidic environments. In the present study, we evaluated the long-term effects of increased seawater CO2 on survival, growth, feeding and moulting of the marine shrimp Palaemon pacificus. The shrimps were reared in seawater equilibrated with air containing 1,000 ppmv (parts per million by volume, seawater pH 7.89 ± 0.05) or 1,900 ppmv (pH 7.64 ± 0.09) CO2, the atmospheric CO2 concentrations predicted for the year 2100 and 2300, for 30 and 15 weeks, respectively. Survival was significantly suppressed in both experimental groups compared to respective controls; final survival rates were 55% (experimental) vs. 90% (control) in the 1,000 ppmv experiment, and 65% (experimental) vs. 95% (control) in the 1,900 ppmv experiment. Growth was unaffected in the 1,000 ppmv experiment but significantly depressed compared to the control after 7 weeks in the 1,900 ppmv experiment. Feeding was unaffected by either treatment. Moulting frequency was significantly affected in both 1,000 ppmv (experimental > control) and 1,900 ppmv (experimental < control) experiments. Egg production was suppressed in the 1,000 ppmv shrimps compared with the control (no observation was made in the 1,900 ppmv experiment). In addition, the second antennae determined at the end of the experiment were significantly shorter in the 1,000 ppmv shrimps than in the control. The present results demonstrate for the first time that the predicted future seawater CO2 conditions would potentially reduce shrimp, and possibly other crustacean, populations through negatively affecting mortality, growth, and reproduction. This could threaten entire marine ecosystem through disrupting marine food web.

Subfields: Ecology, Global and Planetary Change, Oceanography

View Paper: https://www.semanticscholar.org/paper/82dbed09797306019b43120fd39cd8922f1e89a7

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Citations in the corpus

Physiological and ecological responses of crustaceans to ocean acidification (2011, unknown): “Changes in egg production were observed in Palaemon pacificus held at a pCO2 of 0.10 kPa (Kurihara et al. 2008).”
Elevated pCO2 increases sperm limitation and risk of polyspermy in the red sea urchin Strongylocentrotus franciscanus (2011, background): “Juvenile calcification and growth is reduced by elevated pCO2 in taxa ranging from corals to mollusks to echinoderms (reviewed by Fine & Tchernov, 2007; Gazeau et al., 2007; Kurihara et al., 2008).”
Effects of CO2-driven ocean acidification on the early developmental stages of invertebrates (2008, unknown): “The marine shrimp Palaemon pacificus cultured under 1000 µatm pCO2 (pH 7.9) seawater for 30 wk showed reduced reproduction compared to the control (Kurihara et al. 2008).”
Long-term and trans-life-cycle effects of exposure to ocean acidification in the green sea urchin Strongylocentrotus droebachiensis (2013, background): “…on the impact of ocean acidification on invertebrates been short-term, but also they traditionally have had a focus on one life-history stage (but see Mayor et al. 2007; Kurihara et al. 2004, 2008; Kurihara and Ishimatsu 2008; McDonald et al. 2009; Dupont et al. 2010a; Byrne et al. 2008).”
Effect of pH on Gene Expression and Thermal Tolerance of Early Life History Stages of Red Abalone (Haliotis rufescens) (2010, background): “A study withMytilus galloprovincialis mussel larvae raised in CO2-acidified seawater at pH 7.4 (2,000 ppm) found that 70% of the larvae were delayed in development at the trochophore stage and, when development continued, abnormalities in morphology were observed (Kurihara et al. 2008a).”
Effects of ocean acidification over the life history of the barnacle Amphibalanus amphitrite (2009, background): “These include the nauplii and copepodites of Acartia tsuensis (pH 7.4; Kurihara & Ishimatsu 2008), and hatched embryos of the shrimp Palaemon pacificus (pH 7.6; Kurihara et al. 2008).”
Adult exposure influences offspring response to ocean acidification in oysters (2012, background): “Such carry-over begins with the production of gametes; for example, Kurihara et al. (2008b) found that egg production in the shrimp, P. pacificus was suppressed follow- ing long-term exposure of adults to elevated Pco2 of 1000 ppm.”
Physiological basis for high CO2 tolerance in marine ectothermic animals: pre-adaptation through lifestyle and ontogeny? (2009, background): “…clear that in order to consider possible trade-offs be-tween single parameters all relevant indicators have to be included simultaneously to generate a meaningful assessment of a given species’ vulnerability to future ocean acidiﬁcation (e.g. see below, Wood et al., 2008; Kurihara et al., 2008).”