Isolume: Difference between revisions
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Isolumes are the preferred light zone of an organism in the ocean in the preferendum hypothesis.[1] The preferendum hypothesis suggests that some organisms living in the mesopelagic zone, change their depth as light levels change in order to remain in their isolume.[2][1] Organisms prefer to remain within a certain light level for a variety of reason. Some organisms use bioluminescence to camouflage their existence from predators below like the Sergestidae, Euphausiid,[1] and Palinuridae.[2]
Organisms of the same species do not always exist in the same isolume and numerous factors can change what light levels an organism prefers to live within including age, sex, and competition for food.[1]
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References
- ^ a b c d Widder, E. A.; Frank, T. M. (2001-04-23). "The speed of an isolume: a shrimp's eye view". Marine Biology. 138 (4): 669–677. doi:10.1007/s002270000504. ISSN 0025-3162.
- ^ a b Yeung, Cynthia; Couillard, Theodore; McGowan, Michael (1993). "The relationship between the vertical distribution of spiny lobster phyllosoma larvae (Crustacea: Palinuridae) and isolume depths generated by a computer model". Revista De Biologia Tropical. 41 (1): 63–67.