Descrição
Original provider: Andrew DiMatteo, US Navy Dataset credits: Kevin Foss, Christopher Newport University; U.S. Department of the Navy Abstract: The Elizabeth River is bounded almost totally by industrial, urban, suburban, commercial shipping and military facilities. Tidal in nature, the river has low flow, resulting in heavy contamination loads. The population studied is the Northern Migratory Stock of the US Atlantic coast, appearing in this area from May through November. Standard small boat, focal group follow, passive observation techniques were used, along with photography of individuals. Data on location, group size estimates, activities observed and relevant environmental observations were recorded every five minutes. The dolphins appear as individuals or pairs in April and May, with group size increasing in June to a peak mean of 29 animals sighted per encounter. Group size then decreases in October and November. Probability of encountering dolphins ranges from 0% during the winter and early spring to over 80% in July, tapering off towards fall. Activity patterns show greatest diversity in July and August, with travel constituting the main activity early and late. Despite a peak of births in the area in May-June, there is little mating until July, with the incidence of sexual activity peaking in September. Purpose: To better understand the seasonality and behavior of bottlenose dolphins in the lower Chesapeake Bay. Data were originally collected by Mr. Kevin Foss at Christopher Newport University during field seasons from 2000-2006. Data were subsequently acquired by the U.S. Navy in 2013. Supplemental information: [2015-03-24] A few records had a wrong animal count of zero. The value is replaced with a blank representing species presence only. These data are the result of small boat transects with focal group follows, so that sightings were recorded at regular intervals. Therefore, there may be sightings of the same individuals at different times. Records that originally estimated a range for the number of adults were attributed with the median number to be conservative. Three records on land were excluded.
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 998 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:
DiMatteo, A. 2014. Christopher Newport University bottlenose dolphin sightings in Virginia estuaries 2000-2006. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1074) on yyyy-mm-dd.
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: 8753a2c6-eafc-49d5-879d-eed5e5258656. OBIS-SEAMAP publica este recurso, e está registrado no GBIF como um publicador de dados aprovado por Ocean Biodiversity Information System.
Palavras-chave
Occurrence,Vessels,Sightings; Observation; Occurrence
Dados externos
Os dados de recurso também estão disponíveis em outros formatos
| OBIS-SEAMAP Dataset Page | http://seamap.env.duke.edu/dataset/1074 UTF-8 Interactive map |
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| FGDC Metadata | http://seamap.env.duke.edu/dataset/1074/xml UTF-8 XML |
Contatos
- Proprietário ●
- Originador ●
- Ponto De Contato
- Provedor Dos Metadados ●
- Distribuidor
Cobertura Geográfica
Oceans
| Coordenadas delimitadoras | Sul Oeste [36,746, -76,457], Norte Leste [36,98, -76,106] |
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Cobertura Taxonômica
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
| Espécie | Tursiops truncatus (Common Bottlenose Dolphin) |
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Cobertura Temporal
| Data Inicial / Data final | 2000-07-10 / 2006-07-25 |
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Dados Sobre o Projeto
Nenhuma descrição disponível
| Título | Christopher Newport University bottlenose dolphin sightings in Virginia estuaries 2000-2006 |
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| Financiamento | NA |
O pessoal envolvido no projeto:
- Proprietário
Métodos de Amostragem
NA
| Área de Estudo | NA |
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Descrição dos passos do método:
- NA
Dados de Coleção
| Nome da Coleção | zd_1074 |
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| Identificador da Coleção | zd_1074 |
| Identificador da Coleção Parental | OBIS-SEAMAP |
Metadados Adicionais
marine, harvested by iOBIS
| Propósito | To better understand the seasonality and behavior of bottlenose dolphins in the lower Chesapeake Bay. Data were originally collected by Mr. Kevin Foss at Christopher Newport University during field seasons from 2000-2006. Data were subsequently acquired by the U.S. Navy in 2013. |
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| Identificadores alternativos | http://ipt.env.duke.edu/resource?r=zd_1074 |