Skip to content
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Menu
Home
About Us
Resources
Profiles Metrics
Authors Directory
Institutions Directory
Top Authors
Top Institutions
Top Sponsors
AI Digest
Contact Us
Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
agricultural and biological sciences
Network analysis of acoustic tracking data reveals the structure and stability of fish aggregations in the ocean
Animal Behaviour, Volume 85, No. 4, Year 2013
Notification
URL copied to clipboard!
Description
Aggregations in the distribution of individuals are an almost universal phenomenon in living organisms. Groups of animals that display collective coordinated movement without forming stable social bonds such as fish schools are a special type of aggregation. In tropical tuna fisheries, aggregating behaviour is directly exploited through the use of artificial fish aggregating devices (FADs). Hence, understanding the dynamics of schooling behaviour and the potential impacts of FADs upon it may have ramifications for tuna management. As a novel way of quantifying spatiotemporal co-occurrences of animals, we applied network statistics to acoustic tracking data to identify the co-occurrences of individual yellowfin tuna, Thunnus albacares, in an array of FADs and determine the frequency and temporal dynamics of these co-occurrences. We observed large interannual variation in movement rates of tuna between FADs, and corresponding interannual variability in the mean number of spatiotemporal associates for each individual as well as the temporal stability of associations. When movement rates were high, associations within FAD aggregations decayed to randomness three times faster than when movement rates were lower. This raises the possibility that if FADs are sufficiently close for fish to perform frequent between-FAD movements, school mixing may be increased and cohesion reduced. © 2013 The Association for the Study of Animal Behaviour.
Authors & Co-Authors
Stehfest, Kilian M.
Australia, Hobart
Institute for Marine and Antarctic Studies
Australia, Canberra
Csiro Oceans and Atmosphere
Patterson, Toby A.
Australia, Canberra
Csiro Oceans and Atmosphere
Dagorn, Laurent C.
Seychelles
Institut de Recherche Pour le Développement Ird
Holland, Kim Nicholas
United States, Kaneohe
Hawaiʻi Institute of Marine Biology
Itano, David George
United States, Kaneohe
Hawaiʻi Institute of Marine Biology
Semmens, Jayson Mark
Australia, Hobart
Institute for Marine and Antarctic Studies
Statistics
Citations: 32
Authors: 6
Affiliations: 4
Identifiers
Doi:
10.1016/j.anbehav.2013.02.003
ISSN:
00033472