Descripción
Original provider: Virginia Aquarium and Marine Science Center Foundation Dataset credits: Virginia Aquarium Foundation - Susan G. Barco & Gwen G. Lockhart Riverhead Foundation for Marine Research & Preservation - Robert A. DiGiovanni Jr. & Allison M. DePerte Abstract: The data provided were collected as part of the the Virginia and Maryland Sea Turtle Research & Conservation Initiative - funded by the National Marine Fisheries Service Species Recovery Grants program No. NA09NMF4720033. Purpose: Previous sea turtle abundance estimates reported in the Virginia portion of the Chesapeake Bay where developed using aerial surveys without correcting for seasonal differences and availability bias. More recent surveys yielded estimates of availability throughout the turtles' residency periods using radio transmitters and satellite telemetry. These estimates where significantly different then previous surveys and changed over time. This project was conducted in order to quantify turtles surfacing time for the purpose of calculating seasonal and annual differences in availability, conduct aerial surveys in a manner that will allow for the calculation of perception bias, and compare estimates generated during previous projects. Supplemental information: Aerial surveys were conducted along the coastal waters and bays of Virginia and Maryland. This project is broken into two survey periods. The survey platform was a De Havilland twin otter DHC‐6 modified for observational research. The aircraft was configured so as to have two forward observers and a data recorder on their own communication system and have a second team consisting of a belly observer and one additional observer (either port or starboard) along with a data recorder. The separation of the communications systems enables the two teams to function independently thereby functioning as two individual surveys. Groups of sea turles, marine mammals, and other marine mammals were recorded. This method was developed in order to calculate a perception bias using mark recapture techniques. This dataset is the filtered version – meaning all the duplicate sightings have been removed. All records are marked as observed by only team one, only team two, or by both. There is only one record for each sighting even if the animal was sighted by both teams. The raw dataset, with all sighting from both teams, is available by request from the Virginia Aquarium & Marine Science Foundation.
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 5.532 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:
Barco, S. 2014. Virginia and Maryland Sea Turtle Research and Conservation Initiative Aerial Survey Sightings, May 2011 through July 2013. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/1201) 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: b4469a23-f5a7-48e2-a32e-6e30353ea6a0. OBIS-SEAMAP publica este recurso y está registrado en GBIF como un publicador de datos avalado por Ocean Biodiversity Information System.
Palabras clave
Occurrence,Marine Animal Survey,Marine Biology,Marine mammals,Sea turtles,Visual Sighting,Aircraft; Observation; Occurrence
Datos externos
Los datos del recurso también están disponibles en otros formatos
| OBIS-SEAMAP Dataset Page | http://seamap.env.duke.edu/dataset/1201 UTF-8 Interactive map |
|---|---|
| FGDC Metadata | http://seamap.env.duke.edu/dataset/1201/xml UTF-8 XML |
Contactos
- Propietario ●
- Originador ●
- Punto De Contacto
- Proveedor De Los Metadatos ●
- Distribuidor
Cobertura geográfica
North Atlantic
| Coordenadas límite | Latitud Mínima Longitud Mínima [36,583, -76,396], Latitud Máxima Longitud Máxima [38,521, -74,398] |
|---|
Cobertura taxonómica
Scientific names are based on the Integrated Taxonomic Information System (ITIS).
| Subfilo | Vertebrata |
|---|---|
| Subclase | Elasmobranchii (cartilaginous fishes) |
| Orden | Cetacea (cetaceans) |
| Familia | Cheloniidae (Sea Turtles) |
| Especie | Balaenoptera borealis (Sei Whale), Balaenoptera physalus (Fin Whale), Caretta caretta (Loggerhead Sea Turtle), Cetorhinus maximus (basking shark), Chelonia mydas (Green Sea Turtle), Dermochelys coriacea (Leatherback Sea Turtle), Lepidochelys kempii (Kemp's Ridley), Manta birostris (Atlantic manta), Mola mola (ocean sunfish), Rhinoptera bonasus (cownose ray), Sphyrna zygaena (smooth hammerhead), Tursiops truncatus (Common Bottlenose Dolphin) |
Cobertura temporal
| Fecha Inicial / Fecha Final | 2011-05-22 / 2013-07-31 |
|---|
Datos del proyecto
No hay descripción disponible
| Título | Virginia and Maryland Sea Turtle Research and Conservation Initiative Aerial Survey Sightings, May 2011 through July 2013 |
|---|---|
| Fuentes de Financiación | NA |
Personas asociadas al proyecto:
- Propietario
Métodos de muestreo
NA
| Área de Estudio | NA |
|---|
Descripción de la metodología paso a paso:
- NA
Datos de la colección
| Nombre de la Colección | zd_1201 |
|---|---|
| Identificador de la Colección | zd_1201 |
| Identificador de la Colección Parental | OBIS-SEAMAP |
Metadatos adicionales
marine, harvested by iOBIS
| Propósito | Previous sea turtle abundance estimates reported in the Virginia portion of the Chesapeake Bay where developed using aerial surveys without correcting for seasonal differences and availability bias. More recent surveys yielded estimates of availability throughout the turtles' residency periods using radio transmitters and satellite telemetry. These estimates where significantly different then previous surveys and changed over time. This project was conducted in order to quantify turtles surfacing time for the purpose of calculating seasonal and annual differences in availability, conduct aerial surveys in a manner that will allow for the calculation of perception bias, and compare estimates generated during previous projects. |
|---|---|
| Identificadores alternativos | http://ipt.env.duke.edu/resource?r=zd_1201 |