Despite the fact that. The main aim of this study was to analyse how densities of red sea urchins, wave exposure and current speed influence densities of epiphytic macroalgae associated with kelp stipes. The purpose of this study is to identify the species and abundance of sea urchins at different environmental conditions, to analyze the influence of water conditions on the abundance of. Urchin abundance data retrieval is done by timed swims or snorkeling and species of sea urchins seen through genetic approach, by dna sequencing. Identify the types of sea.
We found that the species composition of sea urchins differed significantly between the two habitats, and the presence of sand was a critical factor influencing the species. Light is indirectly important for sea urchins through its influence on algae growth and hence food availability. Temperature and light vary with latitude and depth whereas.
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