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Diversity and habitat selectivity of harpacticoid copepods from sea grass beds in Pujada Bay, the Philippines
De Troch, M.; Melgo-Ebarle, J.L.; Angsinco-Jimenez, L.; Gheerardyn, H.; Vincx, M. (2008). Diversity and habitat selectivity of harpacticoid copepods from sea grass beds in Pujada Bay, the Philippines. J. Mar. Biol. Ass. U.K. 88(3): 515-526. dx.doi.org/10.1017/S0025315408000805
In: Journal of the Marine Biological Association of the United Kingdom. Cambridge University Press/Marine Biological Association of the United Kingdom: Cambridge. ISSN 0025-3154; e-ISSN 1469-7769
Peer reviewed article  
Available in  Authors 
Keywords
    Abundance
    Analysis > Sediment analysis > Analysis > Core analysis
    Aquatic communities > Benthos
    Biodiversity
    Environments > Aquatic environment > Marine environment > Intertidal environment
    Habitat selection
    Meiofauna
    Seagrass
    Sediments
    Species diversity
    Turnover
    Copepoda [WoRMS]; Cymodoceaceae Vines [WoRMS]; Harpacticoida [WoRMS]; Hydrocharitaceae Jussieu [WoRMS]; Miraciidae Dana, 1846 [WoRMS]; Nematoda [WoRMS]; Tetragonicipitidae Lang, 1944 [WoRMS]
    Philippines [Marine Regions]
    Marine/Coastal
Author keywords
    biodiversity; meiofauna; harpacticoid copepods; the Philippines; sea grasses
Authors  Top 
  • De Troch, M.
  • Melgo-Ebarle, J.L.
  • Angsinco-Jimenez, L.
Abstract
    The spatial diversity of meiofauna from sea grass beds of Pujada Bay (the Philippines), was studied with special emphasis on harpacticoid copepods. Sediment cores were obtained from areas adjacent to the different species of sea grasses. Meiofauna was enumerated at higher taxon level and harpacticoid copepods were identified to genus level. Diversity indices were calculated corresponding to the hierarchical levels of spatial biodiversity, i.e. alpha, beta and gamma. Nematodes were the most abundant meiofaunal group in all sediment layers and along the entire tidal gradient (37-92%); harpacticoids were second in abundance (3.0-40.6%) but highly diverse (N0: 9.33-15.5) at the uppermost sediment layer (0-1 cm) near all beds of sea grass species. There was a sharp turnover of harpacticoid genera along the tidal gradient, thus suggesting a relatively low proportion of shared genera among benthic communities in different sea grass zones. The families of Tetragonicipitidae and Miraciidae were the dominant harpacticoid groups occurring in all sediment layers of all sea grass species. The presence of the epiphytic genera of Metis at the deepest sediment layers in some sea grass species was striking. Overall, the major contributor to gamma (total) diversity of harpacticoid copepods in Pujada Bay is the high local (alpha) diversity (N0: 80.6%, H': 94.7% of total diversity); hence, the habitat heterogeneity among sediment layers in sea grass beds is most relevant for the total diversity and richness of harpacticoid copepod genera in the area.
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