Elevated seawater CO2 concentrations impair larval development and reduce larval survival in endangered northern abalone (Haliotis kamtschatkana)

Crim, Ryan; Sunday, Jennifer M.; Harley, Christopher D. G.

doi:10.1016/j.jembe.2011.02.002

Cited by 108 publications

(82 citation statements)

References 40 publications

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“…Shell size, thickness and normality, rate of development and survival of embryos and larvae are all negatively affected by elevated CO 2 . Effects on metamorphosis and settlement have been less studied with results to date revealing both neutral (Bechmann et al 2011;Crim et al 2011) and negative (Cigliano et al 2010;Talmage and Gobler 2012) effects of elevated CO 2 on these critical stages. There is a limited understanding of the underlying mechanisms associated with the responses of the early-life-history stages of shelled molluscs to ocean acidification.…”

Section: Kimura Et Al (2011)mentioning

confidence: 99%

Impacts of ocean acidification on marine shelled molluscs

et al. 2013

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Over the next century, elevated quantities of atmospheric CO 2 are expected to penetrate into the oceans, causing a reduction in pH (-0.3/-0.4 pH unit in the surface ocean) and in the concentration of carbonate ions (so-called ocean acidification). Of growing concern are the impacts that this will have on marine and estuarine organisms and ecosystems. Marine shelled molluscs, which colonized a large latitudinal gradient and can be found from intertidal to deep-sea habitats, are economically and ecologically important species providing essential ecosystem services including habitat structure for benthic organisms, water purification and a food source for other organisms. The effects of ocean acidification on the growth and shell production by juvenile and adult shelled molluscs are variable among species and even within the same species, precluding the drawing of a general picture. This is, however, not the case for pteropods, with all species tested so far, being negatively impacted by ocean acidification. The blood of shelled molluscs may exhibit lower pH with consequences for several physiological processes (e.g. respiration, excretion, etc.) and, in some cases, increased mortality in the long term. While fertilization may remain unaffected by elevated pCO 2 , embryonic and larval development will be highly sensitive with important reductions in size and decreased survival of larvae, increases in the number of abnormal larvae and an increase in the developmental time. There are big gaps in the current understanding of the biological consequences of an Communicated by S. Dupont.Frédéric Gazeau and Laura M. Parker have contributed equally to this work.Electronic supplementary material The online version of this article

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Section: Kimura Et Al (2011)mentioning

confidence: 99%

Impacts of ocean acidification on marine shelled molluscs

et al. 2013

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“…Although many organisms can endure OA to different degrees, fertilization and hatching rates, calcification and survival all decrease significantly for most species as levels of CO 2 increase (Byrne 2010, 2011, 2012, Dupont et al 2010, Kroeker et al 2013. Earlier studies have examined abalone responses, specifically Haliotis discus hannai (Kimura et al 2011), H. coccoradiata (Byrne et al 2011) and H. kamtschat kana (Crim et al 2011). In these earlier studies, fertilization and hatching rates decreased significantly when CO 2 exceeded 1000 ppm, and the abundance of calcified larvae was 30% lower than controls when CO 2 reached 700 to 1000 ppm for H. discus hannai.…”

Section: Introductionmentioning

confidence: 99%

Effects of ocean acidification caused by rising CO2 on the early development of three mollusks

Guo¹,

Huang²,

Pu³

et al. 2015

Aquat. Biol.

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Increasing atmospheric CO 2 can decrease seawater pH and carbonate ions, which may adversely affect the larval survival of calcareous animals. In this study, we simulated future atmospheric CO 2 concentrations (800, 1500, 2000 and 3000 ppm) and examined the effects of ocean acidification on the early development of 3 mollusks (the abalones Haliotis diversicolor and H. discus hannai and the oyster Crassostrea angulata). We showed that fertilization rate, hatching rate, larval shell length, trochophore development, veliger survival and metamorphosis all decreased significantly at different pCO 2 levels (except oyster hatching). H. discus hannai were more tolerant of high CO 2 compared to H. diversicolor. At 2000 ppm CO 2 , 79.2% of H. discus hannai veliger larvae developed normally, but only 13.3% of H. diversicolor veliger larvae. Tolerance of C. angulata to ocean acidification was greater than the 2 abalone species; 50.5% of its D-larvae developed normally at 3000 ppm CO 2 . This apparent resistance of C. angulata to ocean acidification may be attributed to their adaptability to estuarine environments. Mechanisms underlying the resistance to ocean acidification of both abalones requires further investigation. Our results suggest that ocean acidification may decrease the yield of these 3 economically important shellfish if increasing CO 2 is a future trend.

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“…embryonic, larval or juvenile) (Kurihara, 2008;Ross et al, 2011) as these life stages are particularly energetically demanding (Barry et al, 2011). Though responses to OA in early life-history stages may vary, negative effects have been observed in mollusks, echinoderms and crustaceans, including reduced survival, growth and recruitment, as well as changes in developmental timing Dupont et al, 2008;Crim et al, 2011;Findlay et al, 2009;Walther et al, 2010). The persistence or failure of a population will be determined by the successful completion of all life stages (Byrne, 2011), emphasizing the importance of assessing sensitivity to OA in adult as well as early developmental life-history stages.…”

Section: Introductionmentioning

confidence: 99%

Effects of ocean acidification on early life-history stages of the intertidal porcelain crab Petrolisthes cinctipes

Ceballos-Osuna

Carter

Miller

et al. 2013

Journal of Experimental Biology

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SUMMARY Intertidal zone organisms naturally experience daily fluctuations in pH, presently reaching values beyond what is predicted foropen ocean surface waters from ocean acidification (OA) by the year 2100, and thus present an opportunity to study the pH sensitivity of organisms that are presumably adapted to an acidified environment. The intertidal zone porcelain crab, Petrolisthes cinctipes, was used to study physiological responses to low pH in embryonic, larval and newly recruited juvenile life-history stages. In these crabs, embryonic development occurs in the pH-variable intertidal zone (pH6.9-9.5), larvae mature in the more stable pelagic environment (pH7.9-8.2), and juvenile crabs settle back into the pH-variable intertidal zone. We examined survival, cardiac performance, energetics and morphology in embryonic, larval and juvenile crabs exposed to two pH conditions (pH7.9 and 7.6). Embryos and larvae were split by brood between the pH treatments for 9days to examine brood-specific responses to low pH. Hatching success did not differ between pH conditions, but ranged from 30% to 95% among broods. Larval survival was not affected by acidification, but juvenile survival was reduced by ~30% after longer (40days) exposure to low pH. Embryonic and larval heart rates were 37% and 20% lower at low pH, and there was a brood-specific response in embryos. Embryos did not increase in volume under acidified conditions, compared with a 15% increase in ambient conditions. We conclude that sustained exposure to low pH could be detrimental to P. cinctipes embryos and larvae despite the fact that embryos are regularly exposed to naturally fluctuating hypercapnic water in the intertidal zone. Importantly, our results indicate that early life-history stage responses to OA may be brood specific through as yet undetermined mechanisms. Supplementary material available online at

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Elevated seawater CO2 concentrations impair larval development and reduce larval survival in endangered northern abalone (Haliotis kamtschatkana)

Cited by 108 publications

References 40 publications

Impacts of ocean acidification on marine shelled molluscs

Impacts of ocean acidification on marine shelled molluscs

Effects of ocean acidification caused by rising CO2 on the early development of three mollusks

Effects of ocean acidification on early life-history stages of the intertidal porcelain crab Petrolisthes cinctipes

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