The data are swordfish (Xiphias gladius) bycatches from the artisanal bluefin tuna fishing trap located at Milazzo, Sicily, Italy. The data have been recovered from historical records, reports and archives associated with the traps. Data records include the locations and dates for the catches and the catch in numbers and/or weight in given months. Catch data in weight are not available on specific days for these years at this site. The time period is 1896-1901. Catch data in numbers are however available on specific days for these years at this site; see accompanying data set #928996.
The data have been recovered to increase understanding of the long-term dynamics of the population and its fisheries, including effects of exploitation and climate variability and change, and to provide baseline knowledge against which future variations can be compared.
MacKenzie, Brian R; Addis, Piero; Battaglia, Pietro; Consoli, Pierpaolo; Andaloro, Franco; Sarà, Gianluca; Nielsen, Anders; Romeo, Teresa (in prep.): Neglected fishery data sources as indicators of pre-industrial ecological properties of Mediterranean swordfish.
MacKenzie, Brian R; Romeo, Teresa; Addis, Piero; Battaglia, Pietro; Consoli, Pierpaolo; Andaloro, Franco; Sarà, Gianluca (in prep.): A new historical dataset for long-term swordfish ecological studies in the Mediterranean Sea. Earth System Science Data
MacKenzie, Brian R; Romeo, Teresa; Addis, Piero; Battaglia, Pietro; Consoli, Pierpaolo; Andaloro, Franco; Sarà, Gianluca (2021): Swordfish bycatch data from tuna traps located at four sites in Italy, 1896-2010. PANGAEA, https://doi.pangaea.de/10.1594/PANGAEA.928996
Latitude: 38.233330 * Longitude: 15.216670
Date/Time Start: 1896-05-01T00:00:00 * Date/Time End: 1901-07-01T00:00:00
Minimum DEPTH, water: 30 m * Maximum DEPTH, water: 30 m
Corresponding authors: Teresa Romeo (firstname.lastname@example.org) and Brian R. MacKenzie (email@example.com)
The project was supported by the participating institutes. An initial travel grant (Short Term Scientific Mission) was provided to BRM from the EU COST Action IS1403 (Oceans Past Platform: OPP) to visit colleagues (TR, PB, PC, FA) at Milazzo, Italy to discuss and plan project objectives and data recovery.
|#||Name||Short Name||Unit||Principal Investigator||Method/Device||Comment|
|1||DATE/TIME||Date/Time||MacKenzie, Brian R||Geocode|
|2||Latitude of event||Latitude|
|3||Longitude of event||Longitude|
|4||DEPTH, water||Depth water||m||MacKenzie, Brian R||Geocode|
|5||Xiphias gladius, monthly landings in numbers||X. gladius monthly n||#||MacKenzie, Brian R||Counting, visual|
|6||Xiphias gladius, monthly landings in mass||X. gladius monthly l||kg||MacKenzie, Brian R||Fish, wet weighted|
38 data points