Skip to main content

Free Content Locomotory Patterns of Microzooplankton: Potential Effects on Food Selectivity of Larval Fish

Download Article:
 Download
(PDF 1413.7548828125 kb)
 

Abstract:

Microzooplankton are a morphologically and ecologically diverse group of organisms that are an important food source for larval fish. The locomotory behaviors of microzooplankton have probably evolved to allow the organism to feed efficiently or to allow non-feeding larval forms to remain in the water column and disperse. Swimming patterns also affect the ability of predators to recognize microzooplankton as potential prey, however, especially in estuaries where non-food, suspended particles are abundant. Using a video-computer system for motion analysis, the swimming behaviors of a wide variety of microzooplankton species have been quantified. Swimming patterns of microzooplankton include the smooth helical patterns of some dinoflagellates, tintinnids and rotifers, the jerky swimming of some copepod nauplii and the stop-and-go patterns of other copepod nauplii and some ciliates. Factors affecting the selective feeding of larval fish include prey size, prey visibility contrast, encounter rate of predator with prey, prey escape response and prey swimming pattern. By comparing prey of similar size and visibility contrast, and correcting for differential encounter rates between fish larvae and their prey, it may be possible to evaluate the importance of prey motion patterns in determining the attack rate on different microzooplankton species and the importance of escape behavior in determining capture rates.

Document Type: Research Article

Publication date: 1993-07-01

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more