Movement patterns of Cephalopholis cruentata in a marine reserve in St Lucia, W.I., obtained from ultrasonic telemetry
Abstract:Home range size and shape, and within home range movement patterns were determined from 10 adult graysby Cephalopholis cruentata implanted with acoustic transmitters on two reefs within the Soufriere Marine Management Area, St Lucia. The mean home range area was 2120 m2(range 1200 to 4000 m2) and non‐circular in shape. All fish demonstrated a clear preference for a specific area in their home range where, on average, 72·9% of an individuals position were located. Time spent in this favoured area was correlated with reef complexity. Fish with greater activity and displacement possessed a larger home range. Activity and displacement were higher by night than by day, and consistent with this, fish spent less time in the preferred area of their home range by night than by day. Tagged individuals demonstrated a strong tendency to avoid sand habitat present at reserve boundaries.
Document Type: Regular Paper
Affiliations: 1: Department of Biology, McGill University, 1205 Avenue Docteur Penfield, Montreal, Quebec, H3A 1B1, Canada and 2: University of West Indies, Cave Hill Campus, St Michael, Barbados, W.I.
Publication date: 2005-10-01