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Octopus senescence: the beginning of the end

By R. C. Anderson, J. B. Wood, R. A. Byrne

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Abstract

Senescence is a normal stage of an octopus's life cycle that often occurs before death. Some of the following symptoms typify it: lack of feeding, retraction of skin around the eyes, uncoordinated movement, increased undirected activity, and white unhealing lesions on the body. There is inter- and intraspecific variability. Senescence is not a disease or a result of disease, although diseases can also be a symptom of it. Both males and females go through a senescent stage before dying - the males after mating, the females while brooding eggs and after the eggs hatch. There are many aspects of octopus senescence that have not yet been studied. This study discusses the ecological implications of senescence.

Publication Title Journal of Applied Animal Welfare Science
Volume 5
Issue 4
Pages 275-283
ISBN/ISSN 1088-8705
Publisher Taylor & Francis
DOI 10.1207/S15327604JAWS0504_02
Language English
Author Address The Seattle Aquarium, 1483 Alaskan Way, Seattle, WA 98101, USA.roland.anderson@seattle.gov
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Tags
  1. Animals
  2. Aquacultural and fisheries
  3. Aquatic organisms
  4. Cephalopods
  5. Death
  6. Environment
  7. Invertebrates
  8. Life
  9. Marines
  10. Mollusks
  11. Octopus
  12. peer-reviewed
  13. Physiology and biochemistry
  14. Reproduction
  15. senescence
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  1. peer-reviewed