Journal ArticleDOI
Recruitment and Population Dynamics of a Coral Reef Fish
TLDR
Daily otolith increments were used to determine the daily pattern of settlement of the bluehead wrasse (Thalassoma bifasciatum), a Caribbean coral reef fish, and the population dynamics of this species may be determined by the supply of recruits and not by the Supply of space or some other resource on the reef.Abstract:
Daily otolith increments were used to determine the daily pattern of settlement of the bluehead wrasse (Thalassoma bifasciatum), a Caribbean coral reef fish. Recruitment occurs in brief and sporadic episodes even though bluehead wrasses spawn every day. Patterns of recruitment do not correspond to patterns of mortality on the reef. The composition of the adult population directly reflects the relative rates of recruitment of juveniles the year before. The population dynamics of this species may therefore be determined by the supply of recruits and not by the supply of space or some other resource on the reef.read more
Citations
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Journal ArticleDOI
Recruitment and the local dynamics of open marine populations
TL;DR: It is argued that demographic theory suggests that, except under restrictive and unlikely conditions, recruitment must influence local population density to some extent, and the question as to whether the size of a particular population is limited by recruitment is misguided.
Journal ArticleDOI
Larval retention and connectivity among populations of corals and reef fishes: history, advances and challenges
Geoffrey P. Jones,Glenn R. Almany,Garry R. Russ,Peter F. Sale,Robert S. Steneck,M. J. H. van Oppen,Bette L. Willis +6 more
TL;DR: A recent dramatic increase in research effort and a growing diversity of approaches to the study of larval retention within (self-recruitment) and dispersal among (connectivity) isolated coral reef populations are highlighted.
Journal ArticleDOI
Settlement of benthic marine invertebrates
TL;DR: This review analyses the settlement process, attempting to integrate aspects related to different levels of organization (i.e. ecological-physiological-molecular) and using the use of artificial inducers in studying settlement induction, until more effective natural inducers are isolated and characterized.
References
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Journal ArticleDOI
Reproductive strategies of coastal marine fishes in the tropics
TL;DR: It is concluded that temperate zone models of reproductive strategy are inapplicable to many fishes of the coastal tropics and offshore larval dispersal does not seem to be an adaptation for dispersal of the species, but rather an evolutionary response to intense predation pressure in the adult habitats.
Journal ArticleDOI
Coexistence of coral reef fishes — a lottery for living space
TL;DR: It is argued that reef fishes are preadapted for forming inter-specific lotteries for living space if several species with similar requirements occur together, and may explain the typically high within-site diversity found in them.
Journal ArticleDOI
Daily otolith increments and recruitment in two coral-reef wrasses, Thalassoma bifasciatum and Halichoeres bivittatus
TL;DR: Increments on the otoliths of two common coral reef fishes, the bluehead wrasse Thalassoma bifasciatum and the slippery dick Halichoeres bivittatus, were demonstrated by mark-recapture experiments to be daily to indicate a planktonic larval life of 40 to 72 d.
Journal ArticleDOI
Sexual Allocation in a Simultaneously Hermaphroditic Coral Reef Fish
TL;DR: E egg trading and the pattern of allocation of reproductive effort account for the evolutionary stability of the hermaphroditism by providing a fecundity advantage similar to that of parthenogens over sexual organisms.
Journal ArticleDOI
Spatial and temporal patterns of recuruitment of juvenile coral reef fishes to coral habitats within “One Tree Lagoon”, great barrier reef
D. McB. Williams,Peter F. Sale +1 more
TL;DR: Patterns of recruitment of some taxa are consistently more variable than those of other taxa, with numbers settling differed greatly from year to year with total numbers differing as much as an order of magnitude between summers.