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Corpus Systématique Animale

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Lethal limits and the zoogeography of the faunal assemblages of Coastal Carolina waters

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Springer (journals)
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  • F. J. Vernberg 1,2
  • W. B. Vernberg 1,2
  • 1) Belle W. Baruch Coastal Research Institute, University of South Carolina, Columbia, South Carolina, USA
  • 2) Department of Biology, University of South Carolina, Columbia, South Carolina, USA

The offshore waters of Cape Hatteras, North Carolina, USA, is an area of dynamic encounter between the northerly flowing, warm waters of the Gulf Stream and the southerly flowing, colder water of the Virginia coastal current. The faunal assemblages north of the Cape and those associated with a reeflike formation southe of the Cape in the Gulf Stream are distinct, each having predominantly cold- or warm-water affinities. To assess the zoogeographical significance of temperature, high and low thermal limits of both adult and larvae of species from these 2 regions were determined. Lethal salinity limits of the first stage zoeae of a few Crustacea were determined. In general, southern affinity species survived higher temperatures than northerly displanced species. In some cases, species with overlapping distributional limits had different thermal tolerances, which could be correlated with differential microhabitat selection. Many of the southern affinity species could not survive low temperatures which were characteristic of either the water mass northe of Cape Hatteras (4 °C) or the waters between the Gulf Stream and the shore (10 °C). A few species were able to seasonally acclimate to temperature extremes. Zoeae of reef species are the least resistant to both low temperature and low salinity.

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 - psychologie. psychophysiologie
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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