Skip to main content Accessibility help

We use cookies to distinguish you from other users and to provide you with a better experience on our websites. Close this message to accept cookies or find out how to manage your cookie settings.

Close cookie message
×
  1. Home
  2. Search

Refine search

Refine search

Access:
Content type:
Publication date:
Apply   From and To filters
Subject: Show more
Journals Show more
Publishers: Show more
Societies Show more
Series: Show more
Collections: Show more

Actions for selected content:

Select all | Deselect all
  • View selected items
  • Export citations
  • Download PDF (zip)
  • Save to Kindle
  • Save to Dropbox
  • Save to Google Drive

Save Search

You can save your searches here and later view and run them again in "My saved searches".

Please provide a title, maximum of 40 characters.
Cancel
×

1 results

  • Observations on the feeding behaviour of Crassostrea gigas larvae in the bay of Arcachon (France)

  • René Robert, Édouard His
  • Journal:
    Aquatic Living Resources / Volume 1 / Issue 3 / July 1988
    Published online by Cambridge University Press:
    15 July 1988, pp. 133-139
    Print publication:
    July 1988

  • Crassostrea gigas larvae were collected in the bay of Arcachon in July 1985, 1986 and 1987. Larval samples were collected daily at high tide, during at least the first 12 days of pelagic life and every hour during 1 day and night cycle, 6 days after spawning. Epifluorescence microscopy was used for detecting ingestion and digestion of nanoplankton and thin sections were made to try to determine the algal species ingested. The first algal uptake occurred 48 hours after fertilization. and different stages or digestion were noted from the 3rd day. No relationship between ingestion or digestion and the age of the veligers was observed. There was no difference in the feeding activity during day and night. Because the nutrition index was high (70%) the feeding behaviour of the larvae was apparently normal. Nevertheless the intensity of algal uptake was weak. The presence of diatoms in the digestivetract suggests that the Bacillariophyceae play a significant role in the nutrition of veligers in nature.