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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

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 136353 [ download pdf ]

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Trefwoorden

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] Marien/Kust

Author keywords

biodiversity; meiofauna; harpacticoid copepods; the Philippines; sea grasses

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Auteurs		Top
De Troch, M. Melgo-Ebarle, J.L. Angsinco-Jimenez, L.	Gheerardyn, H. Vincx, M.

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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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