IMIS | Flanders Marine Institute
 

Flanders Marine Institute

Platform for marine research

IMIS

Publications | Institutes | Persons | Datasets | Projects | Maps
[ report an error in this record ]basket (0): add | show Printer-friendly version

Abundance and spatial distribution of Thalassoma lucasanum (Gill, 1863) in a coral reef of the eastern tropical Pacific
Giraldo, A.; Gómez, C.; Ospina, F. (2001). Abundance and spatial distribution of Thalassoma lucasanum (Gill, 1863) in a coral reef of the eastern tropical Pacific. Bull. Mar. Sci. 68(1): 147-152
In: Bulletin of Marine Science. University of Miami Press: Coral Gables. ISSN 0007-4977, more
Peer reviewed article  

Available in Authors 

Keyword
    Marine

Authors  Top 
  • Giraldo, A.
  • Gómez, C.
  • Ospina, F.

Abstract
    In order to determine the spatial distribution and abundance patterns of the rainbow wrasse (Thalassoma lucasanum) across a coral reef of the eastern tropical pacific, visual censuses of fish were carried out along 10 transects in a fringing coral reef at Gorgona Island off Colombia. The abundance of initial-phase males and females (IP) and terminal-phase (TP) males at each main reef zone (Channel, Flat and Outer Slope) was computed and their quantitative distribution across the reef is described. Both phases were observed across the coral reef. The IP was significantly more abundant in the channel (57.0 ± 1.95 ind 1000 m-²; P < 0.05), than at the flat or outer slope. The highest relative abundance of TP occurred in the outer slope (4.0 ± 0.43 ind 1000 m-²); however, no significant differences were observed in the distribution of density across the reef for this phase (P > 0.05). The spatial pattern observed for T. lucasanum was not related to living coral cover or relative reef complexity. It is suggested that abundance and distribution of this species at Eastern Tropical Pacific (ETP) reef is determined by other factors like food availability or social system.

All data in IMIS is subject to the VLIZ privacy policy Top | Authors