Sea-bed photographs (benthos) from the AWI-Hausgarten area along OFOS profile PS62/191-1
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| Autores principales: | , , , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2003
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| _version_ | 1867171466294853632 |
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| author | Soltwedel, Thomas von Juterzenka, Karen Premke, Karin Klages, Michael |
| author_facet | Soltwedel, Thomas von Juterzenka, Karen Premke, Karin Klages, Michael |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Although the use of deep-sea imagery considerably increased during the last decades, reports on nekton falls to the deep seafloor are very scarce. Whereas there are a few reports describing the finding of whale carcasses in the deep north-eastern and south-eastern Pacific, descriptions of invertebrate or vertebrate food-falls at centimetre to metre scale are extremely rare. After 4 years of extensive work at a deep-sea long-term station in northern polar regions (AWI-"Hausgarten"), including large-scale visual observations with various camera systems covering some 10 000 m2 of seafloor at water depths between 1250 and 5600 m, this paper describes the first observation of a fish carcass at about 1280 m water depth, west off Svålbard. The fish skeleton had a total length of 36 cm and an approximated biomass of 0.5 kg wet weight. On the basis of in situ experiments, we estimated a very short residence time of this particular carcass of about 7 h at the bottom. The fast response of the motile deep-sea scavenger community to such events and the rapid utilisation of this kind of organic carbon supply might partly explain the extreme rarity of such an observation. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_227671 |
| institution | PANGAEA |
| language | en |
| publishDate | 2003 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Sea-bed photographs (benthos) from the AWI-Hausgarten area along OFOS profile PS62/191-1 Soltwedel, Thomas von Juterzenka, Karen Premke, Karin Klages, Michael Archive of Underwater Imaging; ARK-XVIII/1; AUI; AWI-Hausgarten off Svalbard long-term observation; Fram Strait; Hausgarten; LTO_Hausgarten; Ocean Floor Observation System; OFOS; Polarstern; PS62; PS62/191-1 Although the use of deep-sea imagery considerably increased during the last decades, reports on nekton falls to the deep seafloor are very scarce. Whereas there are a few reports describing the finding of whale carcasses in the deep north-eastern and south-eastern Pacific, descriptions of invertebrate or vertebrate food-falls at centimetre to metre scale are extremely rare. After 4 years of extensive work at a deep-sea long-term station in northern polar regions (AWI-"Hausgarten"), including large-scale visual observations with various camera systems covering some 10 000 m2 of seafloor at water depths between 1250 and 5600 m, this paper describes the first observation of a fish carcass at about 1280 m water depth, west off Svålbard. The fish skeleton had a total length of 36 cm and an approximated biomass of 0.5 kg wet weight. On the basis of in situ experiments, we estimated a very short residence time of this particular carcass of about 7 h at the bottom. The fast response of the motile deep-sea scavenger community to such events and the rapid utilisation of this kind of organic carbon supply might partly explain the extreme rarity of such an observation. |
| title | Sea-bed photographs (benthos) from the AWI-Hausgarten area along OFOS profile PS62/191-1 |
| topic | Archive of Underwater Imaging; ARK-XVIII/1; AUI; AWI-Hausgarten off Svalbard long-term observation; Fram Strait; Hausgarten; LTO_Hausgarten; Ocean Floor Observation System; OFOS; Polarstern; PS62; PS62/191-1 |
| url | https://doi.org/10.1594/PANGAEA.227671 |