Species diversity of Arctic gravel beach: case study for species poor habitats
Abstract: Intertidal zone of four gravel beaches in Hornsund Fjord (West Spitsbergen) were investigated in order to study macrofaunal distribution and diversity in these poor hab− itats. A total of 12 macrofaunal taxa were found in the collected material. The most frequent and the most abundant taxo...
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| Format: | Text |
| Language: | English |
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.472.3173 http://polar.pan.pl/ppr26/ppr26-287.pdf |
| Summary: | Abstract: Intertidal zone of four gravel beaches in Hornsund Fjord (West Spitsbergen) were investigated in order to study macrofaunal distribution and diversity in these poor hab− itats. A total of 12 macrofaunal taxa were found in the collected material. The most frequent and the most abundant taxon was Lumbricillus sp. (Oligochaeta). The next most numerous group were juvenile Gammarus spp. juv. The fauna included also polychaetes, molluscs and other crustaceans. The diversity measured with Shannon−Weaver index was low and varied from 0 to 1.4. The analysis revealed that there were no statistically important differ− ences in macrofaunal distribution among stations in fjord. However there were significant differences among various tidal mark zones and high patchiness in animals abundance at each station. Also species composition, density and biomass were diversified along the tide level profile. |
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