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| Natura: | Dataset Open Access |
| Lingua: | en |
| Pubblicazione: |
PANGAEA
2012
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| Soggetti: | |
| Accesso online: | https://doi.org/10.1594/PANGAEA.804515 |
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| _version_ | 1867167669411643392 |
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| author | Fetzer, Ingo |
| author_facet | Fetzer, Ingo |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Meroplankton was sampled at 11 stations in the southern Kara Sea and the Yenisei Estuary in September 2000. Larvae of 29 benthic taxa representing 10 higher groups were identified. Meroplankton was present at almost all stations and most depth levels. The two most abundant groups were Echinodermata (68%) and Polychaeta (26%). Echinoderms dominated total meroplankton locally due to mass occurrences of Ophiopluteus larvae. The relative group composition was highly variable and seemed to depend mainly on the local hydrographic pattern. Comparison of meroplanktonic data with the distribution of the adults revealed for Spionida and Bivalvia a 'downstream' transport of the larvae whereas for other polychaete species and Ophiuroida 'upstream' transport into the estuary occurred. The distribution and concentration of the larvae within the estuary is explained by physical barriers established by hydrographic gradients, the prevailing mixing processes and the presence of a near-bottom counter current. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_804515 |
| institution | PANGAEA |
| language | en |
| publishDate | 2012 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Meroplankton in the Kara Sea Fetzer, Ingo AWI_Paleo; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Siberian River Run-Off; SIRRO Meroplankton was sampled at 11 stations in the southern Kara Sea and the Yenisei Estuary in September 2000. Larvae of 29 benthic taxa representing 10 higher groups were identified. Meroplankton was present at almost all stations and most depth levels. The two most abundant groups were Echinodermata (68%) and Polychaeta (26%). Echinoderms dominated total meroplankton locally due to mass occurrences of Ophiopluteus larvae. The relative group composition was highly variable and seemed to depend mainly on the local hydrographic pattern. Comparison of meroplanktonic data with the distribution of the adults revealed for Spionida and Bivalvia a 'downstream' transport of the larvae whereas for other polychaete species and Ophiuroida 'upstream' transport into the estuary occurred. The distribution and concentration of the larvae within the estuary is explained by physical barriers established by hydrographic gradients, the prevailing mixing processes and the presence of a near-bottom counter current. |
| title | Meroplankton in the Kara Sea |
| topic | AWI_Paleo; Paleoenvironmental Reconstructions from Marine Sediments @ AWI; Siberian River Run-Off; SIRRO |
| url | https://doi.org/10.1594/PANGAEA.804515 |