WoRMS source details

Daly, M.; Perissinotto, R.; Laird, M.; Dyer, D.; Todaro, A. (2012). Description and ecology of a new species of Edwardsia de Quatrefages, 1842 (Anthozoa, Actiniaria) from the St Lucia Estuary, South Africa. Marine Biology Research. 8(3): 233-245.
222271
10.1080/17451000.2011.617757 [view]
Daly, M.; Perissinotto, R.; Laird, M.; Dyer, D.; Todaro, A.
2012
Description and ecology of a new species of Edwardsia de Quatrefages, 1842 (Anthozoa, Actiniaria) from the St Lucia Estuary, South Africa
Marine Biology Research
8(3): 233-245
Publication
A new species of the true anemone genus Edwardsia, E. isimangaliso sp. nov., is described from the St Lucia Estuary, Africa's largest estuarine lake. The species differs from its closest relatives in anatomy and cnidom and is the only species of the genus found in hypersaline waters. Its current distribution appears to be restricted to a narrow region in the middle reaches of the estuary (lower South Lake), where it has been recorded at salinity levels ranging from 21 to 55.6 psu. The species is also limited to substrata dominated by fine to very fine sand and does not occur in areas with either high silt or coarse sand content. Population densities appear to have decreased over time, with maxima over 1500 ind. m-2 recorded in 2005, but only 20 ind. m-2 in 2010. Prey items identified in its stomach include the snail Assiminea ovata and ostracods. However, stable isotope analysis showed that the main carbon sources for the anemone are the filamentous macroalga Cladophora sp. and benthic microalgae. The presence of zooxanthellae in tissues of E. isimangaliso sp. nov. suggests that the species may combine heterotrophic and autotrophic feeding modes in response to fluctuations in resource availability.
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Holotype SAfM H5134, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Paratype SAfM H5135, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Paratype SAfM H5136, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Paratype SAfM H5137, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Paratype SAfM H5138, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5139, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5140, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5141, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5142, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5143, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5144, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5145, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5146, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5147, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5148, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5149, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5150, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5151, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5152, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012
Unknown type SAfM H5153, geounit South African Exclusive Economic Zone, identified as Edwardsia isimangaliso Daly, Perissinotto, Laird, Dyer & Todaro, 2012