Vessel line-transect surveys of Arctic pinnipeds in the Chuckchi Sea, Arctic Marine Biodiversity Observing Network (AMBON) research cruise on the vessel Norseman II, 2015-08-09 - 2015-09-03

OBIS and OBIS USA

This dataset contains pinniped observation data conducted during shipboard transects in the Chukchi Sea during the 9 August - 3 September 2015 Arctic Marine Biodiversity Observing Network (AMBON) research cruise. The dataset is three comma-separated values (csv) files describing the dates, times, latitude, longitude, species and best-high-low estimates of numbers for each pinniped (seals, seal lions, and walrus) sighting. This dataset was exported from the marine bird and mammal observation software WinCruz from the entire survey, and later transformed from the native WinCruz format into Darwin Core formatted tables (DwC, occurrence core), with DwC term names as column names.

N/A

This dataset was downloaded from OBIS (https://obis.org/). The records for only marine mammals, seabirds, sea turtles and rays and sharks were extracted. Records with no longitude/latitude or no date (eventDate) were excluded.
OBIS dataset page:
https://obis.org/dataset/6e930622-4421-41f8-b18b-f8d11dd51e15
Data Provider's dataset page:
https://www1.usgs.gov/obis-usa/ipt/resource?r=ambon_pinnipeds_2015

The dataset has been updated over time as outlined below. Each entry includes the version number, release date, type of change, and a short description.

Overview

Attributes described below represent those in the original dataset provided by the provider.
All attributes are included in the downloadable file (CSV or ESRI File Geodatabase) for "Complete Set of Dataset".

Attributes in dataset

Attribute (table column)	Description
oid
id
dataset_id
scientificname
vernacularname
aphiaid
taxonrank
individualcount
eventdate
eventtime
decimallatitude
decimallongitude
coordinateprecision
catalognumber
collectioncode
occurrencestatus
basisofrecord
modified
node_id
occurrenceid
occurrenceremarks
eventid
institutioncode
lifestage
sex
species
datasetid
country
locality
waterbody
dropped
absence
marine
obs_datetime
tprecision
on_land
date_in_future