Spatial distribution and substrate preference pattern of Ilyoplax frater along intertidal areas of Pakistan
2014
Saher, Noor Us | Qureshi, Noureen Aziz | Aziz, Uroj
Spatial distribution of dotillid crab i.e. Ilyoplax frater studied along theintertidal shores of Pakistan using transect and quadrate sampling method. The studyrevealed a significant correlation between the distribution of Ilyoplax frater and habitatcharacteristics like tidal level and sediment structure, as these crabs were more abundantin low to mid tide level with high moisture, porosity and mud content. The morphologyof feeding appendages i.e showed meral segment is not expended, having plumose toserrate setae which is characteristics of deposit feeding crabs adapted in muddy cumsandy environment having feeding appandages specialized in relation to habitat.Significant spatial variations in crab density was observed among sites, highest density ofcrabs were reported from Bhambore with low mean size (6.86 ± 1.66) with a size range 2mm – 11mm of carapace width (CW).
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