SPECIES RICHNESS
; POSTSETTLEMENT PROCESSES
; METAL CONCENTRATIONS
; POPULATION-DYNAMICS
; BENTHIC COMMUNITIES
; FRENCH-POLYNESIA
; FISH ASSEMBLAGES
; REEF COMMUNITY
; CLIMATE-CHANGE
; RECRUITMENT
WOS学科分类:
Ecology
WOS研究方向:
Environmental Sciences & Ecology
英文摘要:
Coral reef assemblages generally form gradients of spatial structures which are governed by a variety of interacting physical and biological processes that vary in intensity, frequency, and spatial scale. Assessing the structure of contemporary reef assemblages may help to understand future changes and to identify appropriate conservation actions. The spatial distribution and interannual variability (from 2006 to 2008) of coral assemblages were investigated at 10 stations in the southwestern lagoon of New Caledonia, and the strength of the cross-shelf gradient was evaluated. Coral cover, generic richness, and abundance of adult and juvenile assemblages were highly variable within and among the three major reef habitats (fringing, mid-shelf, and barrier reefs). Abundance increased with distance from shore, whereas generic richness and cover were not correlated with shelf position. Assemblage composition was generally related to habitat, even though some mid-shelf and fringing reef assemblages resembled those observed on other habitats. A significant correlation between juvenile and adult distributions was recorded, suggesting that adult assemblages are partly controlled by the short-term history of recruitment patterns. The interannual variation of coral assemblages was far less pronounced, with significant changes only detected at some mid-shelf and barrier reefs, for a few genera characterised by high turn-over.
1.IRD, ENTROPIE, UMR 9220, 52 Ave Paul Alduy, F-66860 Perpignan, France 2.Lab Excellence CORAIL, 52 Ave Paul Alduy, F-66860 Perpignan, France 3.Inst Rech Dev, ENTROPIE, Ctr IRD Noumea, UMR 9220, BP A5, Noumea 98848, New Caledonia 4.Univ Reunion, ENTROPIE, UMR 9220, 15 Ave Rene Cassin CS 92003, F-97744 St Denis 9, La Reunion, France 5.Univ Reunion, Lab Excellence CORAIL, 15 Ave Rene Cassin CS 92003, F-97744 St Denis 9, La Reunion, France
Recommended Citation:
Adjeroud, Mehdi,Poisson, Emeline,Peignon, Christophe,et al. Spatial Patterns and Short-term Changes of Coral Assemblages Along a Cross-shelf Gradient in the Southwestern Lagoon of New Caledonia[J]. DIVERSITY-BASEL,2019-01-01,11(2)