File:American malacological bulletin (1988) (18157695311).jpg

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Description
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Title: American malacological bulletin
Identifier: americanmal6719881990amer (find matches)
Year: 1983 (1980s)
Authors: American Malacological Union
Subjects: Mollusks; Mollusks
Publisher: (Hattiesburg, Miss. ?) : (American Malacological Union)
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Biodiversity Heritage Library

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Text Appearing Before Image:
HANLON AND WOLTERDING: OCTOPUS BR I ARE US 29 °C oc3 oc, 1 1 1 oc2 26 - 22 -
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—1 1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1—1 0 50 100 150 200 250 300 350 400 DAYS Fig. 15. Typical results of 1983 large-scale culture experiment in which the octopuses were reared in large groups. Large numbers of animals were taken out purposely on days 70 and 80. Note the high levels of ammonia, nitrite and nitrate in the latter portion of the experiment, in- dicating that the animals are much more hardy than previously thought. OC , 2 3 are different tank systems. CANNIBALISM AND PATHOLOGY Cannibalism is a common trait of Octopus briareus and even in the very young stages the animals will completely can- nibalize conspecifics when food is in short supply. This is not merely an artifact of laboratory conditions; Aronson (1989) noted six observations of cannibalism in his field study. Mesozoan parasites occur in the kidneys of Octopus briareus but do not cause mortality (Short, 1961). Fatal skin ulcers (Fig. 16) were caused by Vibrio spp. that occur naturally in seawater; full details of this disease can be found in Hanlon et al. (1984). The initial cause of skin damage was the effect of sucker marks when young animals aggregated during the young stages of group culture. Octopuses grown in individual containers in the same seawater system were free of disease. The anti-bacterial compound nifurpirinol (Furanace®) was ef- fective in stopping the progression of the ulcers and several animals healed completely two months after treatment. Sucker scars on the mantle of laboratory reared adults and octopuses in nature do not seem to get infected similarly, indicating that larger animals could be less susceptible to secondary infection. SENESCENCE Senescence occurred in 10 -12 months in all laboratory

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https://www.flickr.com/photos/internetarchivebookimages/18157695311/

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Volume
InfoField
1988
Flickr tags
InfoField
  • bookid:americanmal6719881990amer
  • bookyear:1983
  • bookdecade:1980
  • bookcentury:1900
  • bookauthor:American_Malacological_Union
  • booksubject:Mollusks
  • bookpublisher:_Hattiesburg_Miss_American_Malacological_Union_
  • bookcontributor:Smithsonian_Libraries
  • booksponsor:Biodiversity_Heritage_Library
  • bookleafnumber:355
  • bookcollection:biodiversity
  • BHL Collection
  • BHL Consortium
Flickr posted date
InfoField
27 May 2015

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Public domain
This work is in the public domain because it was published in the United States between 1978 and March 1, 1989 without a copyright notice, and its copyright was not subsequently registered with the U.S. Copyright Office within 5 years. Unless its author has been dead for several years, it is copyrighted in the countries or areas that do not apply the rule of the shorter term for US works, such as Canada (50 pma), Mainland China (50 pma, not Hong Kong or Macau), Germany (70 pma), Mexico (100 pma), Switzerland (70 pma), and other countries with individual treaties. See this page for further explanation.

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This image was originally posted to Flickr by Internet Archive Book Images at https://flickr.com/photos/126377022@N07/18157695311. It was reviewed on 17 September 2015 by FlickreviewR and was confirmed to be licensed under the terms of the No known copyright restrictions.

17 September 2015

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