Escape by Inking and Secreting: Marine Molluscs Avoid Predators Through a Rich Array of Chemicals and Mechanisms

@article{Derby2007EscapeBI,
  title={Escape by Inking and Secreting: Marine Molluscs Avoid Predators Through a Rich Array of Chemicals and Mechanisms},
  author={Charles D Derby},
  journal={The Biological Bulletin},
  year={2007},
  volume={213},
  pages={274 - 289}
}
  • C. Derby
  • Published 1 December 2007
  • Biology
  • The Biological Bulletin
Inking by marine molluscs such as sea hares, cuttlefish, squid, and octopuses is a striking behavior that is ideal for neuroecological explorations. While inking is generally thought to be used in active defense against predators, experimental evidence for this view is either scant or lacks mechanistic explanations. Does ink act through the visual or chemical modality? If inking is a chemical defense, how does it function and how does it affect the chemosensory systems of predators? Does it… 
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Cephalopod Ink: Production, Chemistry, Functions and Applications
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References

SHOWING 1-10 OF 198 REFERENCES
Chemical Composition of Inks of Diverse Marine Molluscs Suggests Convergent Chemical Defenses
TLDR
The hypothesis that inking molluscs have the potential to use sensory disruption and/or phagomimicry as a chemical defense is supported.
Sea Hares Use Novel Antipredatory Chemical Defenses
Packaging of chemicals in the defensive secretory glands of the sea hare Aplysia californica
TLDR
It is concluded that lysine in opaline is the primary natural substrate for escapin in ink, which allows for the generation of bioactive defensive compounds from innocuous precursors at the precise time they are needed.
Ink secretion by the marine snail Aplysia californica enhances its ability to escape from a natural predator
TLDR
The survival value of ink and the snail's aversion to it supports ink's proposed anti-predator function, thus avoiding potential sites of ongoing predation.
Acidity enhances the effectiveness of active chemical defensive secretions of sea hares, Aplysia californica, against spiny lobsters, Panulirus interruptus
TLDR
It is shown here that ink and opaline are highly acidic, both having a pH of ∼5.5, and this suggests that acidity enhances the phagomimetic chemical defense of sea hares.
A test of novel function(s) for the ink of sea hares
To avoid or deter: interactions among defensive and escape strategies in sabellid worms
TLDR
Most species utilize a combination of predator avoidance and deterrence strategies, but more deterrent populations of species utilized avoidance less, and most species allocated defenses to tissues that were most exposed to predation.
Distastefulness as a defense mechanism in Aplysia brasiliana (Mollusca: Gastropoda)
TLDR
Ink gland, gill, and epidermal portions are shown to be significantly more distasteful than other portions, even the midgut and opaline glands, sites of compounds which can be toxic when injected.
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