GLORIA

GEOMAR Library Ocean Research Information Access

X
feed icon rss

Your email was sent successfully. Check your inbox.

An error occurred while sending the email. Please try again.

Proceed reservation?

Export
  • 1
    facet.materialart.
    Unknown
    Factors affecting prey handling in lesser octopus (Eledone cirrhosa) feeding on crabs (Carcinus maenas) (1999)
    Cambridge Univ. Pr.
    In:  Journal of The Marine Biological Association of The United Kingdom, 79 (6). pp. 1085-1090.
    Details
    Publication Date: 2021-06-25
    Description: Octopuses (Eledone cirrhosa) feeding on crabs (Carcinus maenus) may penetrate the crab by a carapace borehole or puncture of the eye. In ad libitum feeding trials (632 crabs eaten), 31% of the predated crabs had a punctured eye, 57% had a borehole in the dorsal carapace. Eye puncture and boring occurred together in 6% of cases but 18% were neither punctured nor bored. Feeding trials in which size of prey and size of octopus were controlled showed that the incidence of boreholes was greatest (〉70%) in small crabs (〈50 mm carapace width). Incidence of eye puncture (10% in small crabs) rose to 25% in crabs of over 50 mm carapace width and to over 40% in the largest crabs used (65–80 mm carapace width). Large octopuses used eye puncture less frequently than small octopuses. Increasing the proportion of small crabs in the diet increased the subsequent incidence of carapace boring at all crab sizes. The results are discussed in relation to differences in prey handling efficiency at different prey sizes.
    Type: Article , PeerReviewed
    Format: text
    DOI: 10.1017/S0025315499001332
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    OceanRep: Article in a Scientific Journal - peer-reviewed
  • 2
    facet.materialart.
    Unknown
    Prey handling and salivary secretions in octopuses (1990)
    Aberdeen University Press
    In:  In: Trophic Relationships in the Marine Environment : Proceedings of the 24. European Marine Biology Symposium. , ed. by Barnes, M. and Gibson, R. N. Aberdeen University Press, Aberdeen, pp. 541-552.
    Details
    Publication Date: 2020-01-17
    Description: Octopuses are known to be highly efficient at the extraction of flesh from their crustacean prey. Experiments on capture and handling of crabs (Carcinus maenas) by the octopus Eledone cirrhosa show that paralysis of the crab invariably precedes hole boring of the carapace. The time course of feeding is described and it is shown that the ingestion of crab meat does not occur before about 40 min after capture for this specific predator-prey interaction although crabs are paralysed after 1-5 min. Comparative observations on hole-boring behaviour are given for Octopus vulgaris and O. dofleini. The results are discussed in relation to recent data on the biochemical composition of the secretions of the posterior salivary gland.
    Type: Book chapter , NonPeerReviewed
    Format: text
    Location Call Number Limitation Availability
    BibTip Others were also interested in ...
    OceanRep: Book chapter
Close ⊗
This website uses cookies and the analysis tool Matomo. More information can be found here...