Morphological variability of some sea-urchin Strongylocentrotus species related to environmental factors [Russian]

摘要

The relationships between the variability of skeletal structures in Strongylocentrotus species and environmental factors, such as depth of their distribution and exposure level of site, were studied at the Kamchatka, the Kuril Islands and Sakhalin Island coastal water and in the Amurskii and Posyet Bays in 1979-1991. The influence of environmental factors on the shape, thickness, and maximum diameter of the sea-urchin tests and morphology of their needles are shown. The adaptive significance of morphological variability in the sea-urchins is considered.