Descrição
Original provider: Marijke N. de Boer Dataset credits: Marijke N. de Boer Abstract: Minke whales and other marine mammals were recorded in the central North Sea in an area characterised by frontal features and high productivity northeast of the Dogger Bank (4677 km2). Survey efforts were carried out from 28 March to 2 July 2007, at a finer scale than in earlier studies in the region, using 2 vessels as platforms of opportunity and a dedicated line- transect survey vessel following distance sampling methods. The high density of whales indicated that this offshore bank slope is an important spring habitat for minke whales in the North Sea. In total, 77 sightings of minke whales comprising 130 individuals were recorded. The peak density of minke whales was estimated to be 0.029 whales km–2 (minimum estimate, 95% CI: 0.012 to 0.070) in May. During peak abundance, the minke whales temporarily congregated in the area, suggesting that the whales were taking advantage of the local spring abundance of sandeels. The density found was higher than previous studies have suggested for the central North Sea. The results correspond to recent observations of minke whale redistribution within the North Sea, and these may be related to a decline in sandeel availability elsewhere in the North Sea. Offshore banks that aggregate prey may therefore become increasingly important feeding habitats for minke whales and other top predators in the North Sea. The observed habitat preference of minke whales along this offshore bank appeared to be similar to that observed in coastal areas, and this suggests some degree of generality regarding the preference for this type of habitat.
Registros de Dados
Os dados deste recurso de ocorrência foram publicados como um Darwin Core Archive (DwC-A), que é o formato padronizado para compartilhamento de dados de biodiversidade como um conjunto de uma ou mais tabelas de dados. A tabela de dados do núcleo contém 165 registros.
This IPT archives the data and thus serves as the data repository. The data and resource metadata are available for download in the downloads section. The versions table lists other versions of the resource that have been made publicly available and allows tracking changes made to the resource over time.
Versões
A tabela abaixo mostra apenas versões de recursos que são publicamente acessíveis.
Como citar
Pesquisadores deveriam citar esta obra da seguinte maneira:
de Boer, M. 2023. Cetacean sigthings in North Sea. Version 1.0.0. Dataset published in OBIS-SEAMAP. https://doi.org/10.82144/44415200.
Direitos
Pesquisadores devem respeitar a seguinte declaração de direitos:
O editor e o detentor dos direitos deste trabalho é OBIS-SEAMAP. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.
GBIF Registration
Este recurso foi registrado no GBIF e atribuído ao seguinte GBIF UUID: 943e8915-6a32-47bf-afc5-a8f26f21e69f. OBIS-SEAMAP publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Ocean Biodiversity Information System.
Palavras-chave
Occurrence; Observation; Marine Biology; Visual sighting; Marine Animal Survey; Marine mammals; Visual Sighting; Vessel; Occurrence
Dados externos
Os dados de recurso também estão disponíveis em outros formatos
| OBIS-SEAMAP Dataset Page | https://seamap.env.duke.edu/dataset/2257 UTF-8 Interactive map |
|---|---|
| FGDC Metadata | https://seamap.env.duke.edu/dataset/2257/fgdc UTF-8 XML |
| EML Metadata | https://seamap.env.duke.edu/dataset/2257/eml UTF-8 XML |
Contatos
- Proprietário ●
- Originador ●
- Ponto De Contato
- Primary contact
- Provedor Dos Metadados ●
- Distribuidor
- A328 LSRC building
Cobertura Geográfica
Oceans,North Sea
| Coordenadas delimitadoras | Sul Oeste [53,155, 3,084], Norte Leste [56,264, 4,581] |
|---|
Cobertura Taxonômica
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
| Ordem | Cetacea (Cetaceans) |
|---|---|
| Família | Delphinidae (Dolphins), Phocidae (Earless seals) |
| Gênero | Lagenorhynchus (White-beaked dolphins) |
| Espécie | Balaenoptera acutorostrata (Common minke whale), Halichoerus grypus (Atlantic gray seal), Lagenorhynchus acutus (Atlantic white-sided dolphin), Lagenorhynchus albirostris (White-beaked dolphin), Megaptera novaeangliae (Humpback whale), Phoca vitulina (Harbor seal), Phocoena phocoena (Harbor porpoise), Tursiops truncatus (Common bottlenose dolphin) |
Cobertura Temporal
| Data Inicial / Data final | 2007-03-31 / 2007-07-02 |
|---|
Dados Sobre o Projeto
Nenhuma descrição disponível
| Título | Cetacean sigthings in North Sea |
|---|---|
| Financiamento | NA |
O pessoal envolvido no projeto:
- Proprietário
Métodos de Amostragem
NA
| Área de Estudo | NA |
|---|
Descrição dos passos do método:
- NA
Dados de Coleção
| Nome da Coleção | zd_2257 |
|---|---|
| Identificador da Coleção | zd_2257 |
| Identificador da Coleção Parental | OBIS-SEAMAP |
Citações bibliográficas
- Marijke N. de Boer. 2010. Spring distribution and density of minke whale Balaenoptera acutorostrata along an offshore bank in the central North Sea. Marine Ecology Progress SeriesVol. 408: 265–274. DOI: 10.3354/meps08598
Metadados Adicionais
marine, harvested by iOBIS.
| Propósito | As part of a geophysical seismic survey, marine mammals observations were carried out from three vessels: one seismic vessel, one supply vessel operating well ahead from the seismic vessel. The third vessel, MV ‘Andfjord’, carried out a dedicated Line Transect (LT) survey (23 April to 17 May). The LT vessel was surveying at distances of ≥20 km away from the geophysical vessel and followed predetermined line transects placed randomly in a zigzag pattern in the central (German) part of the survey area. |
|---|---|
| Identificadores alternativos | https://doi.org/10.82144/44415200 |
| https://www.gbif.org/dataset/943e8915-6a32-47bf-afc5-a8f26f21e69f | |
| https://seamap.env.duke.edu/dataset/2257 | |
| https://obis.org/dataset/338c41fb-0296-4be8-89fe-c5bb1057ef34 | |
| 943e8915-6a32-47bf-afc5-a8f26f21e69f | |
| https://ipt.env.duke.edu/resource?r=zd_2257 |