Distribution of scyphomedusae in the Indian Ocean

V. Santhakumari

Abstract



Geographic distribution of Scyphomedusae in the Indian Ocean is described. 1548 standard plankton collections of the International Indian Ocean Expedition (IIOE) were considered for this study. In 326 samples Scyphomedusae were encountered. Highest degree of concentration of Scyphomedusae were found in the eastern Arabian Sea and in two patches along the northern part of Bay of Bengal.High concentration areas were observed off the north-east coast of Arabia, off Bombay and in the northern part of Bay of Bengal. Low concentration areas were more in Bay of Bengal than those in the Arabian Sea. Lowest population density extended over greater areas of central and southern Indian Ocean as compared to the northern

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