Spatial and temporal variability of brittle star (Macrophiothrix cheneyi: Ophiuroidea) in the shores of Chabahar Bay, Oman Sea
Echinoderm species are important members of benthic communities existing in subtropical to Polar Regions. They have an important role in nutrient cycles and other communications between organisms. This study investigated the distribution and abundance of brittle star Macrophiothrix cheneyi in the intertidal zone of Chabahar bay, the Oman Sea. Sampling was randomly done bimonthly using a square meter quadrate during one year, from November 2008 to September 2009, at 5 selected stations. According to the results of a Kruskal-Wallis analysis, the density of this species at different sampling times and stations revealed a significant difference (P<0/05). The highest frequency of this species was measured at the station of Chabahar University of Maritime and Marine Science in September 2008 (±1/54 3/58 ind.m^-2) and its lowest frequency was measured at Kolbe Qavasi station during the whole year except January. The difference in abundance (between the different months and stations) seems to be influenced by ecological (bed, food and shelter) and biological factors (fertility, hunting and competition). The investigation of distribution revealed that brittle stars in the intertidal zone under study followed random and patchy dispersion. The results of the stability indicator revealed that though the brittle star was rarely found during some periods, it was a common species in September 2008.
Main Authors: | Khaleghi, M., Safahieh, A., Savari, A., Doustshenas, B., Owfi, F. |
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Format: | article biblioteca |
Language: | Persian |
Published: |
2017
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Subjects: | Biology, Iran, Oman Sea, Chabahar Bay, Brittle star, Abundance, Distribution, Macrophiothrix cheneyi, Species, |
Online Access: | http://hdl.handle.net/1834/39426 |
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