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Corpus Systématique Animale

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The swimming of bloodworms ( Glycera spp.) at night, with comments on other species

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  • D. Dean
  • Department of Oceanography, Ira C. Darling Center for Research, Teaching and Service, University of Maine at Orono, Walpole, Maine, USA

Glycerid polychaetous annelids have been thought to have only limited migratory ability and to swim in the water column only for reproductive purposes. Nevertheless, adult Glycera dibranchiata were observed swimming in the upper 0.75 m of water in the Damariscotta River estuary, Maine, USA, on 5 nights in March of 1977. Of the 15 specimens collected with a dip net, 9 were females and 6 were males. None had ripe gametes. Worms weighed from 8.0 to 22.8 g, and were up to 42 cm in length. The presence of glycerids in buoyed and anchored nets fished at night in two other Maine estuaries lend support to the conclusion that the swimming of bloodworms at night is not an anomalous event. Twenty-four specimens of 5 other species of polychaetes and two specimens of a nemertean were collected from surface waters during 52 min of sampling on two nights in March. It is suggested that the swimming of worms at night in estuaries is a much more common phenomenon than was recognized heretofore.

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 - ecologie animale, vegetale et microbienne
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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