Oxygen‐mediated plasticity confers hypoxia tolerance in a corallivorous polychaete

  title={Oxygen‐mediated plasticity confers hypoxia tolerance in a corallivorous polychaete},
  author={Noelle M Lucey and Mary Lynne Perille Collins and Rachel Collin},
  journal={Ecology and Evolution},
  pages={1145 - 1157}
Abstract There is mounting evidence that the deoxygenation of coastal marine ecosystems has been underestimated, particularly in the tropics. These physical conditions appear to have far‐reaching consequences for marine communities and have been associated with mass mortalities. Yet little is known about hypoxia in tropical habitats or about the effects it has on reef‐associated benthic organisms. We explored patterns of dissolved oxygen (DO) throughout Almirante Bay, Panama and found a hypoxic… 

Tables from this paper

Differential susceptibility of reef-building corals to deoxygenation reveals remarkable hypoxia tolerance
The findings demonstrate the potential for variability in species-specific hypoxia thresholds, which has important implications for the ability to predict how coral reefs may be affected as ocean deoxygenation intensifies.
Rapid plastic responses to chronic hypoxia in the bearded fireworm, Hermodice carunculata (Annelida: Amphinomidae)
The results suggest that morphological variation can be indicative of environmental conditions and demonstrate the importance of considering multiple physiological and morphological endpoints as well as phenotypic plasticity in species delimitations.
Oxygen consumption during and post-hypoxia exposure in bearded fireworms (Annelida: Amphinomidae).
Longer negative impacts of hypoxic exposure, leading to a lasting elevation of metabolic rates of these marine invertebrates, may lead to increased predation on their prey of choice, economically and commercially important coral, causing increased degradation of already threatened coral reef ecosystems.
Multi-stressor Extremes Found on a Tropical Coral Reef Impair Performance
A strong relationship between high temperatures, low dissolved oxygen (DO), and low pH in and around a tropical bay is documented and results show that short, 2 h exposures to the temperature and DO extremes that are already experienced periodically by these animals have measurable detrimental effects on their performance.
Rapid ecosystem-scale consequences of acute deoxygenation on a Caribbean coral reef
The decoupling of ecological trajectories among these major functional groups following an acute event emphasizes the need to incorporate deoxygenation as an emerging stressor into coral reef research and management plans to combat escalating threats to reef persistence.
Differential gene expression indicates modulated responses to chronic and intermittent hypoxia in corallivorous fireworms (Hermodice carunculata)
Parts of the conserved hypoxia-inducible factor (HIF) pathway are found and show a modulated response to Hypoxia depending on the severity of hypoxic stress: under mild hypoxIA, only the HIF-1α subunit is upregulated, while expression of the other subunit only increases significantly at more severeHypoxia levels.
Millennial‐scale change on a Caribbean reef system that experiences hypoxia
Coastal hypoxia has become an increasingly acknowledged threat to coral reefs that is potentially intensifying because of increased input of anthropogenic nutrients. Almirante Bay (Caribbean Panama)
Millennial-scale change on a Caribbean reef system that experiences hypoxia
Results show that the deeper part of the hypoxic reef slowed in growth and stopped accreting approximately 1500 years BP while the shallow part ofthe reef continued to accrete to the present day, in agreement with a model of expanding hypoxia at this time.
Resilience of Tropical Ecosystems to Ocean Deoxygenation.


Hypoxia tolerance in coral-reef triggerfishes (Balistidae)
The results suggest that triggerfish species are adapted for different levels of hypoxia exposure during nocturnal sheltering within the reef.
Effect of hypoxia and anoxia on invertebrate behaviour: Ecological perspectives from species to community level
Oxygen depletion elicited significant and repeatable changes in general and species-specific reactions in virtually all organisms and most atypical (stress) behaviours were associated with specific oxygen thresholds: arm-tipping in the ophiuroid Ophiothrix quinquemaculata with the onset of mild hypoxia, for example.
Hypoxia in paradise: widespread hypoxia tolerance in coral reef fishes
Widespread Hypoxia tolerance in a habitat with such an extreme biodiversity as coral reefs indicate that there is a wealth of hypoxia related adaptations to be discovered in reef fishes.
Effects of elevated temperature on coral reef fishes: loss of hypoxia tolerance and inability to acclimate.
Distinct physiological strategies are used to cope with constant hypoxia and intermittent hypoxia in killifish (Fundulus heteroclitus)
It is concluded that the pattern of Hypoxia exposure has an important influence on the mechanisms of acclimation, and that the optimal strategies used to cope with intermittent hypoxia may be distinct from those for coping with constant hypoxIA.
The consequences of daily cyclic hypoxia on a European grass shrimp: From short‐term responses to long‐term effects
P phenotypic and morphological data indicate that faster moulting is triggered in response to cyclic hypoxia, with the benefit that gill modifications can be prompted more rapidly in order to meet oxygen requirements of the body.
Behavioral responses of free-ranging blue crabs to episodic hypoxia. I. Movement
It is suggested that crabs may have fed on prey other than benthic infauna, or that upwelling events may not have lasted long enough to cause infauna to migrate close enough to the sediment surface to be vulnerable to predation by blue crabs.
Physiological, behavioral and biochemical adaptations of intertidal fishes to hypoxia
Current attempts to use the phylogenetically corrected comparative method to define physiological and behavioral adaptations to hypoxia in intertidal fish and further identify putatively adaptive biochemical traits that should be investigated in the future are reviewed.
Overview of hypoxia around the world.
  • R. Díaz
  • Environmental Science
    Journal of environmental quality
  • 2001
Synthesis of literature pertaining to benthic hypoxia and anoxia revealed that the oxygen budgets of many major coastal ecosystems have been adversely affected mainly through the process of eutrophication (the production of excess organic matter).
Tropical dead zones and mass mortalities on coral reefs
An unprecedented hypoxic event on the Caribbean coast of Panama is document and the risk of dead zones to coral reefs worldwide is assessed, showing that therisk of dead-zone events to reefs worldwide likely has been seriously underestimated.