Ocean Acidification Has Multiple Modes of Action on Bivalve Larvae
Ocean acidification (OA) is altering the chemistry of the world’s oceans at rates unparalleled in the past roughly 1 million years. Understanding the impacts of this rapid change in baseline carbonate chemistry on marine organisms needs a precise, mechanistic understanding of physiological responses...
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ftoregonstate:ir.library.oregonstate.edu:cj82k932n 2024-04-14T08:17:43+00:00 Ocean Acidification Has Multiple Modes of Action on Bivalve Larvae Waldbusser, George G. Hales, Burke Langdon, Chris J. Haley, Brian A. Schrader, Paul Brunner, Elizabeth L. Gray, Matthew W. Miller, Cale A. Gimenez, Iria Hutchinson, Greg https://ir.library.oregonstate.edu/concern/articles/cj82k932n English [eng] eng unknown Public Library of Science https://ir.library.oregonstate.edu/concern/articles/cj82k932n Attribution 4.0 (CC BY 4.0) Article ftoregonstate 2024-03-21T15:43:26Z Ocean acidification (OA) is altering the chemistry of the world’s oceans at rates unparalleled in the past roughly 1 million years. Understanding the impacts of this rapid change in baseline carbonate chemistry on marine organisms needs a precise, mechanistic understanding of physiological responses to carbonate chemistry. Recent experimental work has shown shell development and growth in some bivalve larvae, have direct sensitivities to calcium carbonate saturation state that is not modulated through organismal acid-base chemistry. To understand different modes of action of OA on bivalve larvae, we experimentally tested how pH, P[subscript]CO2, and saturation state independently affect shell growth and development, respiration rate, and initiation of feeding in Mytilus californianus embryos and larvae. We found, as documented in other bivalve larvae, that shell development and growth were affected by aragonite saturation state, and not by pH or P[subscript]CO2. Respiration rate was elevated under very low pH (~7.4) with no change between pH of ~ 8.3 to ~7.8. Initiation of feeding appeared to be most sensitive to P[subscript]CO2, and possibly minor response to pH under elevated P[subscript]CO2. Although different components of physiology responded to different carbonate system variables, the inability to normally develop a shell due to lower saturation state precludes pH or P[subscript]CO2 effects later in the life history. However, saturation state effects during early shell development will carry-over to later stages, where pH or P[subscript]CO2 effects can compound OA effects on bivalve larvae. Our findings suggest OA may be a multi-stressor unto itself. Shell development and growth of the native mussel, M. californianus, was indistinguishable from the Mediterranean mussel, Mytilus galloprovincialis, collected from the southern U.S. Pacific coast, an area not subjected to seasonal upwelling. The concordance in responses suggests a fundamental OA bottleneck during development of the first shell material ... Article in Journal/Newspaper Ocean acidification ScholarsArchive@OSU (Oregon State University) Pacific |
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ScholarsArchive@OSU (Oregon State University) |
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English unknown |
description |
Ocean acidification (OA) is altering the chemistry of the world’s oceans at rates unparalleled in the past roughly 1 million years. Understanding the impacts of this rapid change in baseline carbonate chemistry on marine organisms needs a precise, mechanistic understanding of physiological responses to carbonate chemistry. Recent experimental work has shown shell development and growth in some bivalve larvae, have direct sensitivities to calcium carbonate saturation state that is not modulated through organismal acid-base chemistry. To understand different modes of action of OA on bivalve larvae, we experimentally tested how pH, P[subscript]CO2, and saturation state independently affect shell growth and development, respiration rate, and initiation of feeding in Mytilus californianus embryos and larvae. We found, as documented in other bivalve larvae, that shell development and growth were affected by aragonite saturation state, and not by pH or P[subscript]CO2. Respiration rate was elevated under very low pH (~7.4) with no change between pH of ~ 8.3 to ~7.8. Initiation of feeding appeared to be most sensitive to P[subscript]CO2, and possibly minor response to pH under elevated P[subscript]CO2. Although different components of physiology responded to different carbonate system variables, the inability to normally develop a shell due to lower saturation state precludes pH or P[subscript]CO2 effects later in the life history. However, saturation state effects during early shell development will carry-over to later stages, where pH or P[subscript]CO2 effects can compound OA effects on bivalve larvae. Our findings suggest OA may be a multi-stressor unto itself. Shell development and growth of the native mussel, M. californianus, was indistinguishable from the Mediterranean mussel, Mytilus galloprovincialis, collected from the southern U.S. Pacific coast, an area not subjected to seasonal upwelling. The concordance in responses suggests a fundamental OA bottleneck during development of the first shell material ... |
format |
Article in Journal/Newspaper |
author |
Waldbusser, George G. Hales, Burke Langdon, Chris J. Haley, Brian A. Schrader, Paul Brunner, Elizabeth L. Gray, Matthew W. Miller, Cale A. Gimenez, Iria Hutchinson, Greg |
spellingShingle |
Waldbusser, George G. Hales, Burke Langdon, Chris J. Haley, Brian A. Schrader, Paul Brunner, Elizabeth L. Gray, Matthew W. Miller, Cale A. Gimenez, Iria Hutchinson, Greg Ocean Acidification Has Multiple Modes of Action on Bivalve Larvae |
author_facet |
Waldbusser, George G. Hales, Burke Langdon, Chris J. Haley, Brian A. Schrader, Paul Brunner, Elizabeth L. Gray, Matthew W. Miller, Cale A. Gimenez, Iria Hutchinson, Greg |
author_sort |
Waldbusser, George G. |
title |
Ocean Acidification Has Multiple Modes of Action on Bivalve Larvae |
title_short |
Ocean Acidification Has Multiple Modes of Action on Bivalve Larvae |
title_full |
Ocean Acidification Has Multiple Modes of Action on Bivalve Larvae |
title_fullStr |
Ocean Acidification Has Multiple Modes of Action on Bivalve Larvae |
title_full_unstemmed |
Ocean Acidification Has Multiple Modes of Action on Bivalve Larvae |
title_sort |
ocean acidification has multiple modes of action on bivalve larvae |
publisher |
Public Library of Science |
url |
https://ir.library.oregonstate.edu/concern/articles/cj82k932n |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
https://ir.library.oregonstate.edu/concern/articles/cj82k932n |
op_rights |
Attribution 4.0 (CC BY 4.0) |
_version_ |
1796316977621368832 |