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Corpus Systématique Animale

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Experimental assessment of factors influencing microhabitat selection by the two tidepool fishes Oligocottus maculosus and O. snyderi

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  • R. Nakamura
  • Biology Department, Southeastern Massachusetts University, North Dartmouth, Massachusetts, USA

Oligocottus maculosus Girard and O. snyderi Greeley are two similar tidepool fishes with differing, but overlapping, intertidal distribution patterns. The factors influencing microhabitat selection and distribution patterns were experimentally assessed to elucidate the mechanisms by which the two species partition the resources of the intertidal environment. O. snyderi displays a much more rigid substrate-cover requirement. This, combined with its stenothermal nature serve to strongly restrict the intertidal distribution of this species. O. maculosus has a more generalized substrate-cover requirement and is also known to be eurythermal and euryhaline. Thus, O. maculosus is a ubiquitous intertidal species. Other behavioral attributes of O. maculosus, such as its tide-related locomotor activity and preference for shallow water, facilitate its particular intertidal distribution pattern. Similar depth preferences or tide-related activity were not observed in O. snyderi. Interspecific competition and related agonistic behavior were absent from both species and are probably not important to their microhabitat selection and intertidal distribution patterns.

Catégories Science-Metrix
  • 1 - natural sciences
  • 2 - biology
  • 3 - marine biology & hydrobiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - vertebres: systeme digestif
Catégories Scopus
  • 1 - Physical Sciences ; 2 - Environmental Science ; 3 - Ecology
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Aquatic Science
  • 1 - Life Sciences ; 2 - Agricultural and Biological Sciences ; 3 - Ecology, Evolution, Behavior and Systematics
Catégories WoS
  • 1 - science ; 2 - marine & freshwater biology
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Marine Biology

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