Marine chemical ecology: chemical signals and cues structure marine populations, communities, and ecosystems.
TLDR
How chemical cues regulate critical aspects of the behavior of marine organisms from bacteria to phytoplankton to benthic invertebrates and water column fishes is reviewed.Abstract:
Chemical cues constitute much of the language of life in the sea. Our understanding of biotic interactions and their effects on marine ecosystems will advance more rapidly if this language is studied and understood. Here, I review how chemical cues regulate critical aspects of the behavior of marine organisms from bacteria to phytoplankton to benthic invertebrates and water column fishes. These chemically mediated interactions strongly affect population structure, community organization, and ecosystem function. Chemical cues determine foraging strategies, feeding choices, commensal associations, selection of mates and habitats, competitive interactions, and transfer of energy and nutrients within and among ecosystems. In numerous cases, the indirect effects of chemical signals on behavior have as much or more effect on community structure and function as the direct effects of consumers and pathogens. Chemical cues are critical for understanding marine systems, but their omnipresence and impact are inadequ...read more
Citations
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Well-informed foraging: damage-released chemical cues of injured prey signal quality and size to predators
TL;DR: It is found that predatory dottybacks, Pseudochromis fuscus, were more attracted to skin extracts of damselfish, Pomacentrus amboinensis, prey that were in good condition compared to prey in poor body condition, and predators could differentiate between skin extracts from prey based on prey size, indicating that chemical cues play a complex role in predator–prey interactions in marine fish.
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Distribution, food preference, and trophic position of the corallivorous fireworm Hermodice carunculata in a Caribbean coral reef
TL;DR: These findings highlight H. carunculata as a widespread, and omnivorous scavenger that has the potential to switch feeding toward weakened or stressed corals, thereby likely acting as a harmful corallivore on degraded reefs.
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Phenotypic plasticity in oysters (Crassostrea virginica) mediated by chemical signals from predators and injured prey
TL;DR: Newly settled oysters can differentiate between predatory threats and adjust their responses accordingly, with the strongest responses being to exudates released by predators, but oysters of 2.0 cm and larger do not react morphologically to predatory threats.
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Deep Subseafloor Fungi as an Untapped Reservoir of Amphipathic Antimicrobial Compounds.
Marion Navarri,Camille Jégou,Laurence Meslet-Cladiere,Benjamin Brillet,Georges Barbier,Gaëtan Burgaud,Yannick Fleury +6 more
TL;DR: Interestingly, occurrence of antimicrobial producing isolates was well correlated with the complexity of the habitat, as higher antimicrobial activities were obtained at specific layers of the sediment core, which clearly highlights complex deep-sea habitats as chemical battlefields where synthesis of numerous bioactive compounds appears critical for microbial competition.
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Dilkamural: A novel chemical weapon involved in the invasive capacity of the alga Rugulopteryx okamurae in the Strait of Gibraltar
TL;DR: Results are consistent with the novel weapons hypothesis, since dilkamural was not described previously in the invaded area and has a defensive role against generalist herbivores in the new range, thus helping to explain the great expansion of R. okamurae in the Strait of Gibraltar.
References
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Marine chemical ecology: what's known and what's next?
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