A sedentary fish on the move: effects of displacement on long-snouted seahorse (Hippocampus guttulatus Cuvier) movement and habitat use
Publication
Environmental Biology of Fishes, Vol. 96 No. 1 Pages: 67-75
2012 |
PDFAbstract
To understand how a sedentary fish responds
to displacement and identify key habitat characteristics
for that fish, we translocated long-snouted seahorses
(Hippocampus guttulatus) within their natural habitat
but far beyond their home range. After displacement,
we located these small fish using acoustic technology
and collected environmental data where we captured,
released, and relocated them. Displaced fish (n09)
moved much greater distances (max: 150m; mean daily:
6.4–48.2 m) than expected from known home range
movements and there was no evidence of homing. Seahorses
varied in the specific environments they moved
towards but tended to move towards environments more
similar in both depth and water current speed to their
original capture locations than their release locations.