Biodiversity and community structure of macrofauna of the intertidal sandy beach at Chabahar Bay were studied for a period of ten months in 2007. A total of 32 species were observed and identified in this study so that polychaete with 16 species was numerically dominant. The results showed changing densities were influenced by monsoon season so that maximum density (1935.47 ind/m2) was observed...

The gastropod fauna of Bushehr Province intertidal zone at the Persian Gulf were identified following an investigation starting spring 2009 until winter 2011. Bushehr coastline is a 673.62 km stretch along the northern and northeastern coast of the Persian Gulf. Sampling took place from Deylam at Bushehr-Khuzestan borderlines, extending southeastward through Genaveh, Bushehr, Bolkheyr, Kab...

The rocky intertidal zone is among the most physically harsh environments on earth. Marine invertebrates and algae living in this habitat are alternatively pounded by waves and exposed to thermal extremes during low tide periods (Denny and Wethey, 2001). Additionally, they must deal with strong selective pressures related to predation and competition for space (Connell, 1961). As a result, the ...

Salt-marsh foraminifera have been used to reconstruct Holocene sea-level changes from coastlines around the world. In this work, we compile the results of surface foraminiferal surveys from fifteen study sites located on the east, south and west coasts of Great Britain, and the west coast of Ireland. These data, which comprise 236 samples and 84 species, are used to summarize the contemporary d...

A new opheliid polychaete, Euzonus japonicus sp. nov., is described. This species was collected from subtidal zones in Japanese coasts, while most Euzonus species inhabit intertidal sandy beaches. E. japonicus sp. nov. is morphologically most similar to another subtidal species, E. flabelliferus (Ziegelmeier, 1955) collected from northern Europe, but different from that in the form of branchiae...

The effects of predation and competition on survival of the barnacle, Balanus improvims Darwin, in the upper Chesapeake Bay varied from location to location in 1972 and probably vary from year to year. The flatworm, Stylochus ellipticus Girard, was the predominant predator on barnacles, and the bryozoan, Victorella pavida Kent, was the major spatial competitor. Those intertidal barnacles not ki...

Studies of the sodium, chloride and water balance of Xiphister atropurpureus (Evans, 1967 a-c) showed that this intertidal teleost is relatively impermeable to these ions and to water, has an exchange-diffusion system for sodium only, and apparently lowers its permeability to sodium but not to chloride or water when acclimated to a lower salinity. An investigation of the intertidal teleost, Pho...

SYNOPSIS. The rocky intertidal zone is among the most physically harsh environments on earth. Marine invertebrates and algae living in this habitat are alternatively pounded by waves and exposed to thermal extremes during low tide periods (Denny and Wethey, 2001). Additionally, they must deal with strong selective pressures related to predation and competition for space (Connell, 1961). As a re...