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

Spatial patterns in reproductive traits of the temperate parrotfish Sparisoma cretense
Afonso, P.; Morato, T.; Santos, R.S. (2008). Spatial patterns in reproductive traits of the temperate parrotfish Sparisoma cretense. Fish. Res. 90(1-3): 92-99. hdl.handle.net/10.1016/j.fishres.2007.09.029
In: Fisheries Research. Elsevier: Amsterdam. ISSN 0165-7836, more
Peer reviewed article  

Available in  Authors | Dataset 

Keywords
    Habitat; Marine reserves; Sparisoma cretense (Linnaeus, 1758) [WoRMS]; Marine
Author keywords
    Reproductive biology; Mating system

Authors  Top | Dataset 
  • Afonso, P.
  • Morato, T.
  • Santos, R.S.

Abstract
    Reproductive biology and social behaviour of the parrotfish Sparisoma cretense was studied in the Azores Islands, northeast Atlantic, to characterize its spawning season and general reproductive biology in the region, to clarify the species mating system and associated spawning behaviours, and to evaluate the relationship between its reproductive traits and habitat features. S. cretense exhibits a dual mating system where males hold female harems within year-round territories or live in multi-male groups. Group behaviour predominates in smaller size classes, and territoriality in larger size classes. Males mature and become territorial earlier in life than females, and the best territories are held by larger males. The two behavioural modes are usually spatially segregated, with larger territorial fish preferring exposed and deeper reef ledges, and group fish occupying shallower, protected habitats. However, they frequently interact and overlap in space, especially during reproduction in the summer. Our findings indicate a highly competitive system and suggest that high quality spawning sites are important for the reproductive success of both types of fish. Patchiness of habitat along shorelines determines the relative distribution and equilibrium of territorial versus group fish. The complexity of this relationship between social structure and habitat might impact the populations’ productivity, and could influence the success of marine protected areas for this species

Dataset
  • Underwater fish visual census in the Azores from 1997 to 2015, more

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