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Early assessment with management purposes of the multi-species, multi-gear and data-poor complex fisheries

AutorRamirez, John ; Lleonart, Jordi ; Puentes, G.; Salat, Jordi
Palabras claveGear competition
Multi-species
Management
Fecha de publicaciónsep-2015
EditorInternational Council for the Exploration of the Sea
CitaciónASC Extended Abstracts (2015)
ResumenSmall-scale fisheries target to several resources, using a diversity of gears. These fisheries provide employment to limited-income European communities, while are also supporting the food security by local communities from developing countries. Nevertheless, few target species are assessed and monitored, whereas most of gears and métiers are hardly considered into a regular management. Exploring multi-gear and multi-species scenarios without the trawling participation, we analyze competition among gears in the Colombian Caribbean area. Thus, the competition indicators were determined for 22 métiers, operating in data-poor artisanal fisheries, between 2006 and 2014. The results show an increasing dominance of encircling gillnets both wooden and fiberglass boats, because they are able to catch target species of many others métiers. Conversely, all the canoe fleet, as well as the bottom gillnet and longline fleets have lost both dominance and independence at the expense of encircling gillnets. These results suggest that encircling gillnets, which high catches and few fishers, are promoting activity reduction on many métiers that are supporting the majority of employment. Additionally, this gear removes small size fishes from the ecosystem, resulting in growth overfishing. A single-species pseudo-cohort assessment for two of the most important fishery species Lutjanus synagris (lane snapper) and Haemulon plumierii (white grunt), leads to similar conclusions than competition analysis. Therefore, this multi-gear analysis is useful for an early and inexpensive management on a data-poor context, considering a multi-species fishery
DescripciónInternational Council for the Exploration of the Sea (ICES) Annual Science Conference, 21-25 September 2015, Copenhagen, Denmark.-- 1 page
Versión del editorhttp://www.ices.dk/sites/pub/ASCExtendedAbstracts/SitePages/Home.aspx?RootFolder=%2Fsites%2Fpub%2FASCExtendedAbstracts%2FShared%20Documents%2FF%20%2D%20Small%2Dscale%20fisheries%20under%20data%2Dlimited%20scenarios&FolderCTID=0x0120003547376EAFDC844891BE34E8DA51E43A&View=%7B661AD25E%2DB7DF%2D4234%2DBDE9%2D89DF53693A41%7D#InplviewHash89b75292-aa00-4030-9a3c-3fd2c77412ef=Paged%3DTRUE-p_SortBehavior%3D0-p_FileLeafRef%3DF3515%252epdf-p_ID%3D483-PageFirstRow%3D31
URIhttp://hdl.handle.net/10261/141933
Identificadoresisbn: 978-87-7482-165-6
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