Marine biodiversity atlas of the Balearic Sea

OBIS and EurOBIS

The marine biodiversity atlas of the Balearic Sea integrates marine information with relevant data of different taxonomic groups (from phytoplankton to big species) during a period of more than 40 years of research and surveys.
The Marine biodiversity atlas of the Balearic Sea originates to provide the scientific community, public administration, consultancies and NGO's with a tool to easily acces the data on marine biodiversity collected by governmental agencies like the Spanish Oceanographic Institute.

The Atlas has been developed based on data derived from the different research groups of the Balearic Oceanographic Centre with the information resulting from more than 40 years of marine investigations.

Based on this information a dataset is constructed containing more than 90000 registers and integrating a high number of taxonomic groups: 33 phyla, 615 families, 1058 genera and around 1600 species found in the Balearic Islands context.
The spacial data cover a sampled surface of roughly 150.000 km2.

Objectives:

1. Assess the marine biodiversity of de Balearic Sea and determine the specific composition of the communities of target taxonomic groups in different biotops of the Balearic waters.

2. Design and implementation of a Marine Biodiversity Information System (SIBM) which allows the integration of the available information in a common georeferenced platform.

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/e09c824c-cbd8-4529-b382-5306b2b3a875
Data Provider's dataset page:
http://ipt.vliz.be/eurobis/resource?r=atlas_baleares

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 are defined by OBIS.

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	Internal ID
id	Record ID
dataset_id	Dataset ID
scientificname	Scientific name
vernacularname	Vernacular name
aphiaid	Aphia ID
taxonrank	taxononic rank
individualcount	Group size / individual count
eventdate	Event date (precision varies)
eventtime	Event time
decimallatitude	Latitude in decimal degrees
decimallongitude	Longitude in decimal degrees
coordinateprecision	Coordinate precision
catalognumber	Catalog number
collectioncode	Collection code
occurrencestatus	Occurrence status
basisofrecord	Basis of record (HumanObservation / MachineObservation)
modified	Date/time the record was modified
node_id	Node ID
occurrenceid	Occurrence ID
occurrenceremarks	Occurrence remarks
eventid	Event ID
institutioncode	Institution code
lifestage	Life stage
sex	Sex of the animal if known
species	Species by provider
datasetid	Dataset ID by provider
country	Country
locality	Location of ocean
waterbody	Details of ocean
dropped	Flag indicating the record was dropped (always false)
absence	Flag indicating the record represents the absence of the species (always false)
marine	Flag indicating the record is for marine life (always true)
obs_datetime
tprecision
on_land
date_in_future