Eastern oyster, Crassostrea virginica, valve gape behavior under diel-cycling hypoxia

Porter, Elka T.; Breitburg, Denise L.

doi:10.1007/s00227-016-2980-1

Cited by 33 publications

(26 citation statements)

References 65 publications

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“…In both assays, oyster pediveligers reduced swimming activity and closed their shell valves, thereby isolating their tissue and reducing exposure to the algicide. This is consistent with how juvenile/adult bivalves adjust shell gaping in response to other environmental factors 34,47,48 . However, while adult oysters minimized their shell gape when exposed to high algicide, this had no effect on their clearance rate.…”

Section: Discussionsupporting

confidence: 83%

“…Cohen et al 33 noted copepod swimming was negatively affected by both dispersed and undispersed crude oil. Porter and Brietburg 34 recorded how Eastern oyster behavior changed in response to diel-cycling hypoxia; specifically, under severe hypoxic conditions the animals closed their shells, and reopened once waters became normoxic, indicating that these animals respond to environmental stressors with effective coping mechanisms. Forward et al 35 documented how environmental factors like humic acids and ammonia from estuaries help trigger or hinder blue crab molting from megalopae to first crabs, indicating the importance of environmental factors to their life history.…”

Section: Discussionmentioning

confidence: 99%

“…Similar to other natural and anthropogenic stressors (e.g., temperature, salinity, oil, dispersant, etc. ), these are manifested through either mortality [29][30][31] or sublethal effects [32][33][34][35][36] . Lethal and sublethal assays with IRI-160AA (or a similar compound) and key metazoan taxa should help determine if food webs are altered by widescale application.…”

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confidence: 99%

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Effects of a bacteria-produced algicide on non-target marine invertebrate species

Simons

Coyne

Warner

et al. 2021

Sci Rep

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Harmful algal blooms (HABs) affect both freshwater and marine systems. Laboratory experiments suggest an exudate produced by the bacterium Shewanella sp. IRI-160 could be used to prevent or mitigate dinoflagellate blooms; however, effects on non-target organisms are unknown. The algicide (IRI-160AA) was tested on various ontogenetic stages of the copepod Acartia tonsa (nauplii and adult copepodites), the blue crab Callinectes sapidus (zoea larvae and megalopa postlarvae), and the eastern oyster Crassostrea virginica (pediveliger larvae and adults). Mortality experiments with A. tonsa revealed that the 24-h LC50 was 13.4% v/v algicide for adult females and 5.96% for early-stage nauplii. For C. sapidus, the 24-h LC50 for first-stage zoeae was 16.8%; results were not significant for megalopae or oysters. Respiration rates for copepod nauplii increased in the 11% concentration, and in the 11% and 17% concentrations for crab zoeae; rates of later stages and oysters were unaffected. Activity level was affected for crab zoeae in the 1%, 11%, and 17% treatments, and for oyster pediveliger larvae at the 17% level. Activity of later stages and of adult copepods was unaffected. Smaller, non-target biota with higher surface to volume could be negatively impacted from IRI-160AA dosing, but overall the taxa and stages assayed were tolerant to the algicide at concentrations required for dinoflagellate mortality (EC50 = ~ 1%).

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Section: Discussionsupporting

confidence: 83%

Section: Discussionmentioning

confidence: 99%

mentioning

confidence: 99%

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Effects of a bacteria-produced algicide on non-target marine invertebrate species

Simons

Coyne

Warner

et al. 2021

Sci Rep

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“…In addition, there are likely ecological trade‐offs associated with movement into locations with less stressful environmental conditions, such as when these environments have higher predation risk or lower resource availability (Sims et al, ). Beyond movement, there are a few other interesting examples of behaviors used to avoid stressful environmental conditions, such as intertidal sea stars adjusting their thermal inertia by filling their body cavity with seawater (Pincebourde, Sanford, & Helmuth, ) or bivalves gaping their shells to increase their oxygen supply (Porter & Breitburg, ). Again, there are likely limits to the effectiveness of these behavioral strategies as well as ecological trade‐offs that influence fitness.…”

Section: Introductionmentioning

confidence: 99%

Ecological change in dynamic environments: Accounting for temporal environmental variability in studies of ocean change biology

Kroeker

Bell

Donham

et al. 2019

Global Change Biology

112

120

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The environmental conditions in the ocean have long been considered relatively more stable through time compared to the conditions on land. Advances in sensing technologies, however, are increasingly revealing substantial fluctuations in abiotic factors over ecologically and evolutionarily relevant timescales in the ocean, leading to a growing recognition of the dynamism of the marine environment as well as new questions about how this dynamism may influence species' vulnerability to global environmental change. In some instances, the diurnal or seasonal variability in major environmental change drivers, such as temperature, pH and seawater carbonate chemistry, and dissolved oxygen, can exceed the changes expected with continued anthropogenic global change. While ocean global change biologists have begun to experimentally test how variability in environmental conditions mediates species' responses to changes in the mean, the extensive literature on species' adaptations to temporal variability in their environment and the implications of this variabilityfor their evolutionary responses has not been well integrated into the field. Here, we review the physiological mechanisms underlying species' responses to changes in temperature, pCO 2 /pH (and other carbonate parameters), and dissolved oxygen, and discuss what is known about behavioral, plastic, and evolutionary strategies for dealing with variable environments. In addition, we discuss how exposure to variability may influence species' responses to changes in the mean conditions and highlight key research needs for ocean global change biology. K E Y W O R D Sadaptive tracking, bioenergetic/behavioral strategies, manipulative experiments, physiological adaptations, variable environments KROEKER Et al.

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“…The rhythm of valve closure is the result of the available food and energy metabolism (Borcherding ; Ortmann and Grieshaber ). The influence of valve gape on physiological rate process has been explored in the past with equivocal findings on the usefulness of such relationships among several bivalve species (Newell et al ; Frank et al ; Porter and Breitburg ). In present study, we further analyzed the uptake water process and provided detailed insights on energy efficiency of suspension feeding.…”

Section: Discussionmentioning

confidence: 99%

Adaptive feeding in the American oyster Crassostrea virginica: Complex impacts of pulsatile flow during pseudofecal ejection events

Wang

Song

et al. 2020

Limnology & Oceanography

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Adaptive feeding is a strategy used by many organisms to maintain growth and reproduction success while encountering varying feeding conditions. Oysters are sessile benthic and non-siphon filter feeders. Oysters are well adapted to modify the ambient microenvironment through their pumping behavior and particle selection activity. Rejection of unsuitable food particulates bound in pseudofeces via ejection events are an integral part of oyster feeding during which oysters produced strong flow opposite to their inhalant feeding flow. The strong opposite pulsatile flow during the ejection event inevitably disrupts the oyster's normal feeding cycle, but how oysters restart their feeding and allocate their energy consumption during an ejection event has not been investigated. The present study used particle image velocimetry (PIV) to examine the impact of ejection events on the feeding of the American oyster, Crassostrea virginica. The strong pulsatile flow resulting from pseudofecal ejection altered the external flow fields by moving water away from the shell. The initial feeding zone after pseudofecal ejection was relatively narrow, possessed a low pulsatile flow, and did not exploit the full flow field. The feeding zone gradually expanded as the pulsatile flow weakened. The strong shear rate at the stable feeding zone then sustained the feeding flow that facilitated oyster feeding. Furthermore, the volumetric fluxes often increased after the ejection event, suggesting increase in feeding efficiency after ejection events. These PIV studies provide new insight on the interactions between feeding oysters and the surrounding physical environment at small yet ecologically relevant scales. Oysters commonly reside in the shallow intertidal and subtidal zones where they are exposed to a wide range of environmental conditions (Bartol et al. 1999; Grizzle et al. 2003; Rick et al. 2016). Although well adapted to the dynamic environmental conditions found in estuaries, oyster feeding rates and particle sorting efficiencies are sensitive to a variety of biological factors such as live algae composition and concentration (

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Eastern oyster, Crassostrea virginica, valve gape behavior under diel-cycling hypoxia

Cited by 33 publications

References 65 publications

Effects of a bacteria-produced algicide on non-target marine invertebrate species

Effects of a bacteria-produced algicide on non-target marine invertebrate species

Ecological change in dynamic environments: Accounting for temporal environmental variability in studies of ocean change biology

Adaptive feeding in the American oyster Crassostrea virginica: Complex impacts of pulsatile flow during pseudofecal ejection events

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