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Gastropoda and Bivalvia as bycatch of the Atlantic seabob, Xiphopenaeus kroyeri, trawl fisheries in Pontal do Paraná, southern Brazil
Belz, C.E.; Ziliotto, R.A.; Gernet, M.V.; Birckolz, C.J.; Lagreze-Squella, F.J. (2018). Gastropoda and Bivalvia as bycatch of the Atlantic seabob, Xiphopenaeus kroyeri, trawl fisheries in Pontal do Paraná, southern Brazil. Strombus 24(1-2): 5-12
In: Strombus. Conquiliologistas Do Brasil: Sao Paulo. ISSN 1415-2827; e-ISSN 1983-2214
|  |
| Trefwoorden |
Mollusca [WoRMS]
Marien/Kust |
| Author keywords |
Bycatch; Environmental impact; Mollusks; Trawl fisheries |
| Auteurs | | Top |
- Belz, C.E.
- Ziliotto, R.A.
- Gernet, M.V.
|
- Birckolz, C.J.
- Lagreze-Squella, F.J.
|
|
| Abstract |
Bycatch are organisms that are inadvertently caught during fishery. They are usually rejected and/or returned to the sea, and are killed in the process. The aim of this study is to characterize the Gastropoda and Bivalvia caught as bycatch of the trawling fisheries of the Atlantic seabob, Xiphopenaeus kroyeri, on the coast of Paraná state, southern Brazil. This work was carried out in the municipality of Pontal do Paraná. A total of 651 living individuals were collected, including four species belonging to three families of gastropods and six species distributed into four families of bivalves. Although the frequency of gastropods (96.5%) was much higher than that of bivalves (3.5%), species diversity was higher in bivalves. Among the Gastropoda, Olivancillaria urceus (Gmelin, 1791) was the most abundant species, with 611 individuals. Among the bivalves, Anadara brasiliana (Lamarck, 1819) had the most significant occurrence, with eight individuals. It is important to develop further studies to identify the potential impact of trawling on these mollusk populations and the creation and implementation of public policies and the adoption of technological devices to reduce the bycatch in order to preserve them. |
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