Deep-sea near-bottom swarms of pelagic amphipods Themisto: observations from submersibles
1999; Taylor & Francis; Volume: 84; Issue: 5-6 Linguagem: Inglês
10.1080/00364827.1999.10807352
ISSN1503-1128
Autores Tópico(s)Marine and coastal ecosystems
ResumoAbstractSwarms of Themisto abyssorum and one of Themisto libellula (Hyperiidea, Hyperiidae) were observed during four dives of Mir deep-sea manned submersibles in the Norwegian and Greenland Seas at depths of about 1000 m. Concentrations of the amphipods in the most dense swarm were as high as high as 25–38 individuals per cubic meter in the layer 100–5 m above the bottom. However, such swarming does not seem to be obligatory for Themisto. The animals picked up (food?) particles directly from the seabed.Keywords: Themistonear-bottom swarmssubmersibles
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