Tethys Research Institute aerial survey cetacean sightings 2009-2011

Latest version published by OBIS-SEAMAP on 24 April 2021 OBIS-SEAMAP
Publication date:
24 April 2021
Published by:
CC-BY-NC 4.0

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Data as a DwC-A file download 1,142 records in English (94 KB) - Update frequency: not planned
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Original provider: Tethys Research Institute Dataset credits: Tethys Research Institute; Institute for Environmental Protection and Research - ISPRA Abstract: Monitoring abundance and distribution is essential in any conservation strategy, but is often ignored in many regions, including much of the Mediterranean. It is a priority of the Italian Ministry of the Environment, who funded a series of aerial surveys around Italy, to provide significant baseline information on cetaceans distribution and abundance. The covered areas included the Pelagos Sanctuary, the Central Tyrrhenian, the Corsica and Sardinia Seas, and the Ionian Sea and the Gulf of Taranto. Numbers of animals within the Sanctuary are significantly higher in summer, when human activities and thus potential population level impacts are highest. A crude comparison with data from past shipboard surveys suggests an appreciable decrease in fin whale density in the Pelagos Sanctuary area over the last decade, reiterating the need for a major synoptic basinwide survey, as well as regular monitoring surveys. The low CVs and CIs reconfirm the effectiveness of aerial surveys in estimating abundance of certain cetacean species in suitable areas/circumstances and may provide a model for other areas of the Mediterranean. These surveys provide baseline data to develop efficient long-term systematic monitoring programmes, as required by a number of national and international frameworks. The collected data may also be crucial in assessing whether ship strikes, one of the main causes of death for fin whales in the Mediterranean, are affecting the Mediterranean population. Supplemental information: Effort data are from 2009 only. When time and observed counts were not available, "00:00:00" and "1" was filled in, respectively.

Data Records

The data in this occurrence resource has been published as a Darwin Core Archive (DwC-A), which is a standardized format for sharing biodiversity data as a set of one or more data tables. The core data table contains 1,142 records.

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How to cite

Researchers should cite this work as follows:

Lanfredi, C. and G. Notarbartolo di Sciara. 2011. Tethys Research Institute aerial survey cetacean sightings 2009-2011. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/776) on yyyy-mm-dd.


Researchers should respect the following rights statement:

The publisher and rights holder of this work is OBIS-SEAMAP. This work is licensed under a Creative Commons Attribution Non Commercial (CC-BY-NC 4.0) License.

GBIF Registration

This resource has been registered with GBIF, and assigned the following GBIF UUID: bbf53f93-852f-466d-88ad-b9e1327f9215.  OBIS-SEAMAP publishes this resource, and is itself registered in GBIF as a data publisher endorsed by Ocean Biodiversity Information System.


Occurrence,Aircraft,Sightings; Observation; Occurrence

External data

The resource data is also available in other formats

OBIS-SEAMAP Dataset Page http://seamap.env.duke.edu/dataset/776 UTF-8 Interactive map
FGDC Metadata http://seamap.env.duke.edu/dataset/776/xml UTF-8 XML


Caterina Lanfredi
  • Owner
  • Originator
  • Point Of Contact
Primary contact
Tethys Research Institute
Giuseppe Notarbartolo di Sciara
  • Owner
  • Originator
  • Point Of Contact
Primary contact
Tethys Research Institute
  • Metadata Provider
  • Distributor
Marine Geospatial Ecology Lab, Duke University
A328 LSRC building
27708 Durham
  • Originator
The Agreement on the Conservation of Cetaceans of the Black Sea, Mediterranean Sea and contiguous Atlantic Area (ACCOBAMS) and Whale and Dolphin Conservation Society (WDCS)

Geographic Coverage


Bounding Coordinates South West [36.044, 5.882], North East [44.294, 19.025]

Taxonomic Coverage

Scientific names are based on the Integrated Taxonomic Information System (ITIS).

Order Cetacea (cetaceans), Cetacea (cetaceans)
Family Delphinidae (dolphins)
Species Balaenoptera physalus (Fin Whale), Globicephala melas (Long-finned Pilot Whale), Grampus griseus (Risso's Dolphin), Physeter macrocephalus (Sperm Whale), Stenella coeruleoalba (Striped Dolphin), Tursiops truncatus (Common Bottlenose Dolphin), Ziphius cavirostris (Cuvier's Beaked Whale)

Temporal Coverage

Start Date / End Date 2009-01-12 / 2011-01-19

Project Data

No Description available

Title Tethys Research Institute aerial survey cetacean sightings 2009-2011
Funding NA

The personnel involved in the project:

Caterina Lanfredi
  • Owner
Giuseppe Notarbartolo di Sciara
  • Owner

Sampling Methods


Study Extent NA

Method step description:

  1. NA

Collection Data

Collection Name zd_776
Collection Identifier zd_776
Parent Collection Identifier OBIS-SEAMAP

Additional Metadata

marine, harvested by iOBIS

Purpose Not available
Alternative Identifiers http://ipt.env.duke.edu/resource?r=zd_776