Descripción
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
Los datos en este recurso de registros biológicos han sido publicados como Archivo Darwin Core(DwC-A), el cual es un formato estándar para compartir datos de biodiversidad como un conjunto de una o más tablas de datos. La tabla de datos del core contiene 998 registros.
Este IPT archiva los datos y, por lo tanto, sirve como repositorio de datos. Los datos y los metadatos del recurso están disponibles para su descarga en la sección descargas. La tabla versiones enumera otras versiones del recurso que se han puesto a disposición del público y permite seguir los cambios realizados en el recurso a lo largo del tiempo.
Versiones
La siguiente tabla muestra sólo las versiones publicadas del recurso que son de acceso público.
¿Cómo referenciar?
Los usuarios deben citar este trabajo de la siguiente manera:
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.
Derechos
Los usuarios deben respetar los siguientes derechos de uso:
El publicador y propietario de los derechos de este trabajo es OBIS-SEAMAP. Esta obra está bajo una licencia Creative Commons de Atribución/Reconocimiento-NoComercial (CC-BY-NC 4.0).
Registro GBIF
Este recurso ha sido registrado en GBIF con el siguiente UUID: 8753a2c6-eafc-49d5-879d-eed5e5258656. OBIS-SEAMAP publica este recurso y está registrado en GBIF como un publicador de datos avalado por Ocean Biodiversity Information System.
Palabras clave
Occurrence,Vessels,Sightings; Observation; Occurrence
Datos externos
Los datos del recurso también están disponibles en otros 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 |
Contactos
- Propietario ●
- Originador ●
- Punto De Contacto
- Proveedor De Los Metadatos ●
- Distribuidor
Cobertura geográfica
Oceans
| Coordenadas límite | Latitud Mínima Longitud Mínima [36,746, -76,457], Latitud Máxima Longitud Máxima [36,98, -76,106] |
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Cobertura taxonómica
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
| Especie | Tursiops truncatus (Common Bottlenose Dolphin) |
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Cobertura temporal
| Fecha Inicial / Fecha Final | 2000-07-10 / 2006-07-25 |
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Datos del proyecto
No hay descripción disponible
| Título | Christopher Newport University bottlenose dolphin sightings in Virginia estuaries 2000-2006 |
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| Fuentes de Financiación | NA |
Personas asociadas al proyecto:
- Propietario
Métodos de muestreo
NA
| Área de Estudio | NA |
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Descripción de la metodología paso a paso:
- NA
Datos de la colección
| Nombre de la Colección | zd_1074 |
|---|---|
| Identificador de la Colección | zd_1074 |
| Identificador de la Colección Parental | OBIS-SEAMAP |
Metadatos adicionales
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. |
|---|---|
| Identificadores alternativos | http://ipt.env.duke.edu/resource?r=zd_1074 |