Taxonomical and distribution study on the algal division cyanophyta and rhodophyta in selected areas of Johor

Abstract

This research was carried out to record seaweeds communities on the intertidal and subtidal zone of east. west and south Johor. From this study, 87 taxa were identified belonging to the divisions Cyanophyta and Rhodophyta from 40 stations. From the division Cyanophyta. four orders, seven families and 25 species were identified. While. in the division Rhodophyta, eight orders, 16 families and 62 species were identified. The most abundant seaweeds were from division Rhodophyta which was 71.3 %. There were l 7 species as new records from division Cyanophyta, and 7 species from division Rhodophyta. Overall, the dominant species in the whole study area was Gracifaria edulis wihich was found 47.5 % for division Rhodophyta and Lyngbya majuscula with 32.5 % for division Cyanophyta. The total number of species highest in Tg. Penawar (station 38). While. no species were recorded in Estuary of. Sg. Muar (station 1) and Segenting (station 5).