NDLI: The cephalopod Taningia danae Joubin, 1931 observed near bottom at over 2,000 m depth on Seine seamount

Content Provider	Springer Nature Link
Author	Gomes Pereira, José Nuno Tojeira, Inês
Copyright Year	2013
Abstract	We report the first in situ observations of a large Taningia danae Joubin, 1931, close to the seafloor at bathyal depths of 2,157 m. The observation was made in the subtropical northeast Atlantic Seine seamount during daytime on 29 September 2012, over a silt-covered seafloor (33º40.1142′N, 14º22.7301′W). Seawater temperature was 4.2 ºC, salinity 35.40 ppt, oxygen saturation 50.87 Ox%, and pressure 2,178.29 dbar. Mantle length was estimated from imagery to be 65.3 cm (STD = 6.3). A repeated behaviour was observed every time the ROV approached: (1) swimming away from the ROV by flapping the fins twice (moving forward or backward), (2) gliding slightly inclined downward, until colliding against the seafloor, and (3) ascending obliquely or vertically in relation to the seafloor, finally evading the area moving upward using jet propulsion. These observations greatly extend the species depth range and document behaviour patterns. T. danae is able to explore beyond the mesopelagic zone where it has previously been reported.
Starting Page	151
Ending Page	155
Page Count	5
File Format	PDF
ISSN	18671616
Journal	Marine Biodiversity
Volume Number	44
Issue Number	1
e-ISSN	18671624
Language	English
Publisher	Springer Berlin Heidelberg
Publisher Date	2014-01-10
Publisher Place	Berlin, Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Octopoteuthis Seine seamount Bathyal Benthos ROV Behaviour Biodiversity Freshwater & Marine Ecology Plant Systematics/Taxonomy/Biogeography Animal Systematics/Taxonomy/Biogeography
Content Type	Text
Resource Type	Article
Subject	Aquatic Science Ecology, Evolution, Behavior and Systematics Oceanography

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