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Biological Impacts from Acidification

Ocean acidification changes water chemistry in ways that can hinder how marine species grow, reproduce, and survive.

Biological Impacts Graphics
Photo: National Oceanic and Atmospheric Administration (NOAA)

Introduction to Biological Impacts from Acidification

Species react differently to environmental pH and aragonite saturation values. “Thresholds”, or tipping points, are a level when negative reactions start to occur, however, there can be a range of biological reactions to low pH and aragonite saturation values. There are natural differences in pH and aragonite saturation values across different coastal and marine habitats. Species can survive in a range of conditions, however, long-term survival depends on how species respond to unfavorable conditions at various life stages. For example, while adult species may be able to survive at low pH or aragonite saturation conditions, larval stages may not be able to survive in those same conditions.

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Understanding the Biological Impacts Graphics

The Biological Impacts Graphics show conditions where negative impacts have been observed (blue and teal points and ranges), and potentially lethal (red lines) conditions for Mid-Atlantic species. Any pH or aragonite saturation state value above the points or ranges are considered to be healthy conditions where negative responses were not observed within the studies that were surveyed to create these graphics.

VIEW BIOLOGICAL IMPACTS GRAPHICS

Data and Experimental Context

The conditions in the graphics show information that was compiled through a literature search of 80 publications (listed below). Some publications provided information on multiple species. All of the results are from laboratory experiments where seawater chemistry has been altered to simulate “acidic conditions”.

What is pH and Why is It Important?

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pH is a scale that measures how acidic or basic the water is and ranges from 0 to 14. A pH of 7 is neutral, while values below 7 are acidic and values above 7 are basic. Each whole pH value (for example 7 to 8) represents a tenfold change in acidity or basicity. Typical open ocean pH is 8.2 to 8.1, whereas coastal and estuarine pH is lower, typically around 7.9.

Organisms can not survive when pH is too low or too high. When pH gets too low, or acidic, for organisms, biological functions such as reproduction, shell or skeleton formation, and growth can decrease or stop altogether.

Learn More about ph

References

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Appelhans, Y. S., Thomsen, J., Opitz, S., Pansch, C., Melzner, F., and Wahl, M. 2014. Juvenile sea stars exposed to acidification decrease feeding and growth with no acclimation potential. Mar. Ecol. Prog. Ser., 509: 227-239. doi: 10.3354/meps10884

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Clark, H. R. and Gobler, C. J. 2016. Diurnal fluctuations in CO2 and dissolved oxygen concentrations do not provide a refuge from hypoxia and acidification for early-life-stage bivalves. Mar. Ecol. Prog. Ser., 558: 1-14. doi: 10.3354/meps11852

Clements, J. C., Carver, C. E., Mallet, M. A., Comeau, L. A., and Mallet, A. L. 2021. CO2-induced low pH in an eastern oyster (Crassostrea virginica) hatchery positively affects reproductive development and larval survival but negatively affects larval shape and size, with no intergenerational linkages. ICES J. Mar. Sci., 78(1): 349-359. https://doi.org/10.1093/icesjms/fsaa089

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Dahlke, F. T., Leo, E., Mark, F. C., Pörtner, H.-O., Bickmeyer, U., Frickenhaus, S., and Storch, D. 2017. Effects of ocean acidification increase embryonic sensitivity to thermal extremes in Atlantic cod, Gadus morhua. Glob. Change Biol., 23: 1499-1510. doi: 10.111/gcb.13527

DePasquale, E., Baumann, H., and Gobler, C. J. 2015. Vulnerability of early life stage Northwest Atlantic forage fish to ocean acidification and low oxygen. Mar. Ecol. Prog. Ser., 523: 145-156. doi: 10.3354/meps11142

Devergne, J., Loizeau, V., Lebigre, C., Bado-Nilles, A., Collet, S., Mouchel, O., Iaria, U., Le Gall, M.-M., Madec, L., Turiès, C., and Servili, A. 2023. Impacts of Long-Term Exposure to Ocean Acidification and Warming on Three-Spined Stickleback (Gasterosteus aculeatus) Growth and Reproduction. Fishes, 8(10): 523. https://doi.org/10.3390/fishes8100523

Dickinson, G. H., Ivanina, A. V., Matoo, O. B., Pörtner, H.-O., Lannig, G., et al. 2012. Interactive effects of salinity and elevated CO2 levels on juvenile eastern oysters, Crassostrea virginica. J. Exp. Biol., 215: 29-43. doi: 10.1242/jeb.0614841

Dickinson, G. H., Matoo, O. B., Tourek, R. T., Sokolova, I. M., and Beniash, E. 2013. Environmental salinity modulates the effects of elevated CO2 levels on juvenile hard-shell clams, Mercenaria mercenaria. J. Exp. Biol., 216: 2607-2618.

Di Santo, V. 2016. Intraspecific variation in physiological performance of a benthic elasmobranch challenged by ocean acidification and warming. J. Exp. Biol., 219: 1725-1733. doi: 10.1242/jeb.139204

Dodd, L. F., Grabowski, J. H., Piehler, M. F., Westfield, I., and Ries, J. B. 2021. Juvenile Eastern Oysters More Resilient to Extreme Ocean Acidification than Their Mud Crab Predators. Geochem. Geophys. Geosystems, 22: e2020GC009180

Ellis, R. P., Bersey, J., Rundle, S. D., Hall-Spencer, J. M., and Spicer, J. I. 2009. Subtle but significant effects of CO2 acidified seawater on embryos of the intertidal snail, Littorina obtusata. Aquat. Biol., 5: 41-48. doi: 10.3354/ab00118

Ferreira, S. 2021. Future ocean warming and acidification: Simultaneous impacts on the green crab Carcinus maenas. Masters thesis, Abel Salazar Institute of Biomedical Sciences, University of Porto.

Franke, A. and Clemmesen, C. 2011. Effect of ocean acidification on early life stages of Atlantic herring (Clupea harengus L.). Biogeosci., 8: 3697-3707. doi: 10.5194/bg-8-3697-2011

Frommel, A. Y., Maneja, R., Lowe, D., Malzahn, A. M., Geffen, A. J., et al. 2012. Severe tissue damage in Atlantic cod larvae under increasing ocean acidification. Nat. Clim. Change, 2: 42-46. doi: 10.1038/nclimate1324

Frommel, A. Y., Margulies, D., Wexler, J. B., Stein, M. S., Scholey, V. P., Williamson, J. E., Bronhead, D., Nicol, S., and Havenhand, J. 2016. Ocean acidification has lethal and sub-lethal effects on larval development of yellowfin tuna, Thunnus albacares. J. Exp. Mar. Biol. Ecol., 482: 18-24. https://doi.org/10.1016/j.jembe.2016.04.008

Gazeau, F., Gattuso, J.-P., Dawber, C., Pronker, A. E., Peene, F., Peene, J., Heip, C. H. R., and Middelburg, J. J. 2010. Effect of ocean acidification on the early life stages of the blue mussel Mytilus edulis. Beogeosciences, 7: 2051-2060. doi: 10.5194/bg-7-2051-2010

Giltz, S. M., and Taylor, C. M. 2017. Reduced Growth and Survival in the Larval Blue Crab Callinectes sapidus Under Predicted Ocean Acidification. J. Shellfish Res., 36(2): 481-485. https://doi.org/10.2983/035.036.0219

Glaspie, C. N., Longmire, K., and Seitz, R. D. 2017. Acidification alters predator-prey interactions of blue crab Callinectes sapidus and soft-shell clam Mya arenaria. J. Exp. Mar. Biol. Ecol., 489: 58-65. https://doi.org/10.1016/j.jembe.2016.11.010

Gobler, C. J. and Talmage, S. C. 2013. Short- and long-term consequences of larval stage exposure to constantly and ephemerally elevated carbon dioxide for marine bivalve populations. Biogeosci., 10: 2241-2253.

Gobler, C. J. and Talmage, S. C. 2014. Physiological response and resilience of early life-stage Eastern oysters (Crassostrea virginica) to past, present and future ocean acidification. Conserv. Physiol., 2(1): cou004. https://doi.org/10.1093/conphys/cou004

Gobler, C. J., DePasquale, E. L., Griffith, A. W., and Baumann, H. 2014. Hypoxia and Acidification Have Additive and Synergistic Negative Effects on the Growth, Survival, and Metamorphosis of Early Life Stage Bivalves. PLoS ONE, 9(1): e83648. https://doi.org/10.1371/journal.pone.0083648

Gobler, C. J., Merlo, L. R., Morrell, B. K., Griffith, A. W. 2018. Temperature, Acidification, and Food Supply Interact to Negatively Affect the Growth and Survival of the Forage Fish, Menidia beryllina (Inland Silverside), and Cyprinodon variegatus (Sheepshead Minnow). Front. Mar. Sci., 5: 86. doi: 10.3389/fmars.2018.00086

Goldstein, J., Augustin, C. B., Bleich, S., and Holst, S. 2017. A matter of tolerance: Distribution potential of scyphozoan polyps in a changing environment. Mar. Ecol., 38(5): e12457. https://doi.org/10.1111/maec.12457

Gurr, S. J., McFarland, K., Bernatchez, G., Dixon, M. S., Guy, L., et al. 2024. Effects of food supply on northern bay scallops Argopecten irradians reared under two pCO2 conditions. Mar. Ecol. Prog. Ser., 740: 61-78. https://doi.org/10.3354/meps14624

Kaplan, M. B., Mooney, T. A., McCorkle, D. C., and Cohen, A. L. 2013. Adverse Effects of Ocean Acidification on Early Development of Squid (Doryteuthis pealeii). PLoS ONE, 8(5): e63714. https://doi.org/10.1371/journal.pone.0063714

Keppel, E. A., Scrosati, R. A., and Courtenay, S. C. 2012. Ocean Acidification Decreases Growth and Development in American Lobster (Homarus americanus) Larvae. J. Northw. Atl. Fish. Sci., 44: 61-66. doi: 10.2960/J.v44.m683

Kim, J.-H., Kang, E. J., Edwards, M. S., Lee, K., Jeong, H.-J., and Kim, K. Y. 2016. Species-specific responses of temperate macroalgae with different photosynthetic strategies to ocean acidification: a mesocosm study. Algae, 31(3): 243-256.

Kriefall, N. G., Pechenik, J. A., Pires, A., Davies, S. W. 2018. Resilience of Atlantic Slippersnail Crepidula fornicata Larvae in the Face of Severe Coastal Acidification. Front. Mar. Sci., 5: 312. doi: 10.3389/fmars.2018.00312

Li, S., Liu, C., Huang, J., Liu, Y., Zheng, G., Xie, L., and Zhang, R. 2015. Interactive effects of seawater acidification and elevated temperature on biomineralization and amino acid metabolism in the mussel Mytilus edulis. J. Exp. Biol., 218: 3623-3631. doi: 10.1242/jeb.126748

Liu, Y.-W., Wanamaker Jr., A. D., Aciego, S. M., Searles, I., Hangstad, T. A., Chierici, M., Carroll, M. L. 2023. Resistant calcification responses of Arctica islandica clams under ocean acidification conditions. J. Exp. Mar. Biol. Ecol., 560: 151855. https://doi.org/10.1016/j.jembe.2022.151855

Lonthair, J., Ern, R., and Esbaugh, A. J. 2017. The early life stages of an estuarine fish, the red drum (Sciaenops ocellatus), are tolerant to high pCO2. ICES J. Mar. Sci., 74(4): 1042-1050. https://doi.org/10.1093/icesjms/fsw225

Lowell, A., Infantes, E., West, L., Puishys, L., Hill, C. E. L., Ramesh, K., Peterson, B., Cebrian, J., Dupont, S., and Cox, T. E. 2021. How Does Ocean Acidification Affect the Early Life History of Zostera marina? A Series of Experiments Find Parental Carryover Can Benefit Viability or Germination. Front. Mar. Sci., 8: 762086. doi: 10.3389/fmars.2021.762086

McCormick, S. D. and Regish, A. M. 2018. Effects of ocean acidification on salinity tolerance and seawater growth of Atlantic salmon Salmo salar smolts. J. Fish. Biol., 93: 560-566. doi: 10.1111/jfb.13656

McGarrigle, S. A. and Hunt, H. L. 2023. Effects of semidiurnal water column acidification and sediment presence on growth and survival of the bivalve Mya arenaria. J. Exp. Mar. Biol. Ecol., 562: 151872. https://doi.org/10.1016/j.jembe.2023.151872

McLean, E. L., Katenka, N. V., and Seibel, B. A. 2018. Decreased growth and increased shell disease in early benthic phase Homarus americanus in response to elevated CO2. Mar. Ecol. Prog. Ser., 596: 113-126. https://doi.org/10.3354/meps12586

Melatunan, S., Calosi, P., Rundle, S. D., Widdicombe, S., and Moody, A. J. 2013. Effects of ocean acidification and elevated temperature on shell plasticity and its energetic basis in an intertidal gastropod. Mar. Ecol. Prog. Ser., 742: 155-168. doi: 10.3354/meps10046

Menu-Courey, K., Noisette, F., Piedalue, S., Daoud, D., Blair, T., Blier, P. U., Azetsu-Scott, K., and Calosi, P. 2019. Energy metabolism and survival of the juvenile recruits of the American lobster (Homarus americanus) exposed to a gradient of elevated seawater pCO2. Mar. Environ. Res., 143: 111-123. https://doi.org/10.1016/j.marenvres.2018.10.002

Meseck, S. L., Redman, D. H., Mercaldo-Allen, R., Clark, P., Rose, J. M., and Perry, D. M. 2022. Resilience of Black Sea Bass Embryos to Increased Levels of Carbon Dioxide. Mar. Coast. Fish., 14(2): e10200. https://doi.org/10.1002/mcf2.10200

Miller, A. W., Reynolds, A. C., Sobrino, C., and Riedel, G. F. 2009. Shellfish Face Uncertain Future in High CO2 World: Influence of Acidification on Oyster Larvae Calcification and Growth in Estuaries. PLoS ONE, 4(5): e5661. doi: 10.1371/journal.pone.0005661

Miller, A. W., Reynolds, A., Minton, M. S., and Smith, R. 2020. Evidence for stage-based larval vulnerability and resilience to acidification in Crassostrea virginica. J. Molluscan Stud., 86(4): 342-351. https://doi.org/10.1093/mollus/eyaa022

Munday, P. L., Watson, S.-A., Parsons, D. M., King, A., Barr, N. G., Mcleod, I. M., Allan, B. J. M., and Pether, S. M. J. 2016. Effects of elevated CO2 on early life history development of the yellowtail kingfish, Seriola lalandi, a large pelagic fish. ICES J. Mar. Sci., 73(3): 641-649. https://doi.org/10.1093/icesjms/fsv210

Murray, C. S. and Baumann, H. 2018. You Better Repeat It: Complex CO2 × Temperature Effects in Atlantic Silverside Offspring Revealed by Serial Experimentation. Diversity, 10(3): 69. https://doi.org/10.3390/d10030069

Murray, C. S. and Baumann, H. 2020. Are long-term growth responses to elevated pCO2 sex-specific in fish? PLoS ONE, 15(7): e0235817. https://doi.org/10.1371/journal.pone.0235817

Murray, C. S., Malvezzi, A., Gobler, C. J., and Baumann, H. 2014. Offspring sensitivity to ocean acidification changes seasonally in a coastal marine fish. Mar. Ecol. Prog. Ser., 504: 1-11. https://doi.org/10.3354/meps10791

Murray, C. S., Wiley, D., and Baumann, H. 2019. High sensitivity of a keystone forage fish to elevated CO2 and temperature. Conserv. Physiol., 7(1): coz084. https://doi.org/10.1093/conphys/coz084

Noisette, F., Bordeyne, F., Davoult, D., and Martin, S. 2016. Assessing the physiological responses of the gastropod Crepidula fornicata to predicted ocean acidification and warming. Limnol. Oceanogr., 61: 430-444. doi: 10.1002/lno.10225

Noisette, F., Calosi, P., Madeira, D., Chemel, M., Menu-Courey, K., Piedalue, S., Gurney-Smith, H., Daoud, D., and Azetsu-Scott, K. 2021. Tolerant Larvae and Sensitive Juveniles: Integrating Metabolomics and Whole-Organism Responses to Define Life-Stage Specific Sensitivity to Ocean Acidification in the American Lobster. Metabolites, 11(9): 584. https://doi.org/10.3390/metabo11090584

Nunes, J., McCoy, S. J., Findlay, H. S., Hopkins, F. E., Kitidis, V., Queirós, A. M., Rayner, L., and Widdicombe, S. 2015. Two intertidal, non-calcifying macroalgae (Palmaria palmata and Saccharina latissima) show complex and variable responses to short-term CO2 acidification. ICES J. Mar. Sci., 73(3): 887-896. https://doi.org/10.1093/icesjms/fsv081

Padilla, D. K., Milke, L., Akin-Fajiye, M., Rosa, M., Redman, D., Liguori, A., Rugila, A., Veilleux, D., Dixon, M., Charifson, D., and Meseck, S. L. 2024. Local differences in robustness to ocean acidification. Biol. Open, 13(8): bio060479. https://doi.org/10.1242/bio.060479

Perry, D. M., Redman, D. H., Widman Jr., J. C., Meseck, S., King, A., and Pereira, J. J. 2015. Effect of ocean acidification on growth and otolith condition of juvenile scup, Stenotomus chrysops. Ecol. Evol., 5(18): 4187-4196.

Pousse, E., Poach, M. E., Redman, D. H., Sennefelder, G., Hubbard, W., et al. 2023. Juvenile Atlantic sea scallop, Placopecten magellanicus, energetic response to increased carbon dioxide and temperature changes. PLOS Clim., 2(2): e0000142. https://doi.org/10.1371/journal.pclm.0000142

Ries, J. B., Cohen, A. L., and McCorkle, D. C. 2009. Marine calcifiers exhibit mixed responses to CO2-induced ocean acidification. Geology, 37(12): 1131-1134. doi: 10.1130/G30210A.1

Ruiz-Jarabo, I., Laiz-Carrión, R., Ortega, A., de la Gándara, F., Quintanilla, J. M., and Mancera, J. M. 2022. Survival of Atlantic bluefin tuna (Thunnus thynnus) larvae hatched at different salinity and pH conditions. Aquaculture, 560: 738457. https://doi.org/10.1016/j.aquaculture.2022.738457

Schneider, G., Horta, P. A., Calderon, E. N., Castro, C., Bianchini, A., et al. 2018. Structural and physiological responses of Halodule wrightii to ocean acidification. Protoplasma, 255: 629-641. https://doi.rg/10.1007/s00709-017-1176-y

Schwaner, C., Barbosa, M., Schwemmer, T. G., Espinosa, E. P., Allam, B. 2023. Increased Food Resources Help Eastern Oyster Mitigate the Negative Impacts of Coastal Acidification. Animals, 13(7): 1161. https://doi.org/10.3390/ani13071161

Stevens, A. M. and Gobler, C. J. 2018. Interactive effects of acidification, hypoxia, and thermal stress on growth, respiration, and survival of four North Atlantic bivalves. Mar. Ecol. Prog. Ser., 604: 143-161. https://doi.org/10.3354/meps12725

Stiasny, M. H., Mittermayer, F. H., Sswat, M., Voss, R., Jutfelt, F., et al. 2016. Ocean Acidification Effects on Atlantic Cod Larval Survival and Recruitment to the Fished Population. PLoS ONE, 11(8): e0155448. doi: 10.1371/journal.pone.0155448

Talmage, S. C. and Gobler, C. J. 2009. The effects of elevated carbon dioxide concentrations on the metamorphosis, size, and survival of larval hard clams (Mercenaria mercenaria), bay scallops (Argopecten irradians), and Eastern oysters (Crassostrea virginica). Limnol. Oceanogr., 54(6): 2072-2080.

Talmage, S. C. and Gobler, C. J. 2010. Effects of past, present, and future ocean carbon dioxide concentrations on the growth and survival of larval shellfish. Proc. Nat. Acad. Sci., 107(40): 17246-17251.

Talmage, S. C. and Gobler, C. J. 2011. Effects of Elevated Temperature and Carbon Dioxide on the Growth and Survival of Larvae and Juveniles of Three Species of Northwest Atlantic Bivalves. PLoS ONE, 6(10): e26941. https://doi.org/10.1371/journal.pone.0026941

Tomasetti, S. J., Morrell, B. K., Merlo, L. R., and Gobler, C. J. 2018. Individual and combined effects of low dissolved oxygen and low pH on survival of early stage larval blue crabs, Callinectes sapidus. PLoS ONE, 13(12): e0208629. https://doi.org/10.1371/journal.pone.0208629

Waldbusser, G. G., Bergschneider, H., and Green, M. A. 2010. Size-dependent pH effect on calcification in post-larval hard clam Mercenaria spp. Mar. Ecol. Prog. Ser., 417: 171-182. https://doi.org/10.3354/meps08809

Waldbusser, G. G., Voigt, E. P., Bergschneider, H., Green, M. A., Newell, R. I. E. 2011. Biocalcification in the Eastern Oyster (Crassostrea virginica) in Relation to Long-term Trends in Chesapeake Bay pH. Estuaries and Coasts, 34: 221-231.

White, M. M., McCorkle, D. C., Mullineaux, L. S., and Cohen, A. L. 2013. Early Exposure of Bay Scallops (Argopecten irradians) to High CO2 Causes a Decrease in Larval Shell Growth. PLoS ONE, 8(4): e61065. https://doi.org/10.1371/journal.pone.0061065

Young, C. S. and Gobler, C. J. 2018. The ability of macroalgae to mitigate the negative effects of ocean acidification on four species of North Atlantic bivalve. Biogeosci., 15: 6167-6183.

Zakroff, C. J. and Mooney, T. A. 2020. Antagonistic Interactions and Clutch-Dependent Sensitivity Induce Variable Responses to Ocean Acidification and Warming in Squid (Doryteuthis pealeii) Embryos and Paralarvae. Front. Physiol., 11: 501. doi: 10.3389/fphys.2020.00501

Zakroff, C., Mooney, T. A., and Berumen, M. L. 2019. Dose-dependence and small-scale variability in responses to ocean acidification during squid, Doryteuthis pealeii, development. Mar. Biol., 166: 62. https://doi.org/10.1007/s00227-019-3510-8

Zavell, M. D. and Baumann, H. 2024. Resiliency of black sea bass, Centropristis striata, early life stages to future high CO2 conditions. Environ. Biol. Fish., 107: 677-691. https://doi.org/10.1007/s10641-024-01561-y

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