Trawl-survey data in the Adriatic Sea (Mediterranean) collected in 1972, 1975 and 1981

Tomaso Fortibuoni, National Institute of Oceanography and Experimental Geophysics (OGS)

Dataset credit

OBIS and EurOBIS

Contacts

RoleNameOrganization 
Primary contact Tomaso Fortibuoni National Institute of Oceanography and Experimental Geophysics (OGS)
Secondary contact Italian National Institute for Environmental Protection and Research Branch office Chioggia (ISPRA) N/A
Secondary contact National Institute of Oceanography and Experimental Geophysics (OGS) N/A

Citation

National Institute of Oceanography and Experimental Geophysics (OGS), Italian National Institute for Environmental Protection and Research (ISPRA), Italy; (2017): Trawl-survey data in the Adriatic Sea (Mediterranean) collected in 1972, 1975 and 1981 https://doi.org/10.14284/281
Fortibuoni, T. 2020. Trawl-survey data in the Adriatic Sea (Mediterranean) collected in 1972, 1975 and 1981. Data downloaded from OBIS-SEAMAP (http://seamap.env.duke.edu/dataset/103152566) on yyyy-mm-dd and originated from OBIS (https://obis.org/dataset/d8c02629-1336-4080-a8a9-f82922b3e398)

Abstract

In November 1972, the Laboratory of Marine Biology and Fisheries of Fano (LMBF, Italy) and the Institute of Oceanography and Fisheries (IOF, Croatia) organised a fishery-independent joint research in the Central Adriatic along the profile Fano-Dugi Otok (5 hauls), which was later extended to four profiles (17 hauls) in the Northern and Central Adriatic in October 1975. In September 1981, another survey performed three profiles in the Northern Adriatic Sea (9 hauls), replicating some of the stations sampled in 1975.
Since stations coordinates were not explicitly available in the documents, they were geolocated by using a GIS software based on sampling locations as reported on printed maps. The depth of each station was extracted from the EMODnet Digital Bathymetry. The composition of the demersal assemblages (41 species in 1972, 59 species in 1975 and 36 in 1981) was sampled with the use of a bottom otter-trawl net and reported in terms of quantity and quality (CPUE: kg/h). Species synonymies were updated according to the modern nomenclature referring to the World Register of Marine Species (WoRMS). Some species are grouped into multispecies categories that group taxonomically similar species, i.e. species of the same genus or family (e.g. Raja spp., Triglidae). Sampling in 1972 was carried out by means of the Italian commercial trawler “Santi Medici” (300 HP; LOA = unknown), while in 1975 and 1981 by means of the Italian commercial trawler “Giannetto” (120 HP; LOA = 19 m). Few information are available in relation to the characteristics of the nets employed. “Giannetto” towed a net with cod-end mesh size of 18 mm, while “Santi Medici” towed a net with cod-end mesh size of 20 mm. The average tow speed was 3.5 knots for “Santi Medici” and 3 knots for “Giannetto”.

Purpose

N/A

Supplemental information

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/d8c02629-1336-4080-a8a9-f82922b3e398
Data Provider's dataset page:
http://ipt.vliz.be/eurobis/resource?r=santi_medici_giannetto_trawl_survey_1972_1975_1981

References

National Institute of Oceanography and Experimental Geophysics (OGS), Italian National Institute for Environmental Protection and Research (ISPRA), Italy; (2017): Trawl-survey data in the Adriatic Sea (Mediterranean) collected in 1972, 1975 and 1981 https://doi.org/10.14284/281

Attributes

Overview

This section explains attributes included in the original dataset. OBIS-SEAMAP restricts the attributes available to the public to date/time, lat/lon and species names/counts only. Should you need other attributes described here, you are encouraged to contact the data provider.

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
oidInternal ID
idRecord ID
dataset_idDataset ID
scientificnameScientific name
vernacularnameVernacular name
aphiaidAphia ID
taxonranktaxononic rank
individualcountGroup size / individual count
eventdateEvent date (precision varies)
eventtimeEvent time
decimallatitudeLatitude in decimal degrees
decimallongitudeLongitude in decimal degrees
coordinateprecisionCoordinate precision
catalognumberCatalog number
collectioncodeCollection code
occurrencestatusOccurrence status
basisofrecordBasis of record (HumanObservation / MachineObservation)
modifiedDate/time the record was modified
node_idNode ID
occurrenceidOccurrence ID
occurrenceremarksOccurrence remarks
eventidEvent ID
institutioncodeInstitution code
lifestageLife stage
sexGender of the animal if known
speciesSpecies by provider
datasetidDataset ID by provider
countryCountry
localityLocation of ocean
waterbodyDetails of ocean
droppedFlag indicating the record was dropped (always false)
absenceFlag indicating the record represents the absence of the species (always false)
marineFlag indicating the record is for marine life (always true)
OBIS-SEAMAP ID103152566
Seabirds0
Marine mammals0
Sea turtles0
Rays and sharks2
Other species0
Non spatial0
Non species0
Total2
Date, Begin1972-11-01
Date, End1975-10-01
Temporal prec.110000
Latitude44.11 - 45.11
Longitude13.50 - 14.82
Coord. prec.6 decimal digits
PlatformVarious
Data typeAnimal sighting
EffortN/A
Traveled (km)0
0
Contr. throughiOBIS
Registered2020-06-30
Updated2021-02-05
StatusPublished
Sharing policy CC-BY (All)
Also available in None
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