Document of bibliographic reference 282558

BibliographicReference record

Type
Bibliographic resource
Type of document
Journal article
BibLvlCode
AS
Title
Non-commercial invertebrate discards in an experimental trammel net fishery
Abstract
Non-commercial invertebrate discards in an experimental trammel net fishery were studied in relation to selectivity of the gear, depth, soak time and season. Forty experimental fishing trials were carried out over a 1-year period with six combinations of small mesh (100, 120 and 140 mm) inner and large mesh (600 and 800 mm) outer panels. On average, 43.8 ± 12.2 (SD) (individuals 1000 m−1 of net) of non-commercial invertebrates were discarded, accounting for 48% and 65% of the total catch and total discards by numbers, respectively. Within non-commercial invertebrates discards, the six most abundant species by number were Phallusia mammillata (Cuvier) (27.5%), Cymbium olla (L.) (13.0%), Sphaerechinus granularis (Lamarck) (11.3%), Paracentrotus lividus (Lamarck) (10.9%), Astropartus mediterraneus (Risso) (8.2%) and Astropecten aranciacus (L.) (8.1%); Echinoderms (43.1%) particularly important. The highest and lowest discard ratios were found in autumn and winter, respectively. Discards generally decreased with depth, varied considerably in relation to soak time and were not related to mesh size combinations. Trammel nets seem to be the most important gear in terms of ecological impacts on benthic invertebrates compared with other coastal fishing gears and at the depths studied (15–60 m).
WebOfScience code
https://www.webofscience.com/wos/woscc/full-record/WOS:000255703900004
Bibliographic citation
Gonçalves, J.M.S.; Bentes, L.; Coelho, R.; Monteiro, P.; Ribeiro, J.; Correia, C.; Lino, P.G.; Erzini, K. (2008). Non-commercial invertebrate discards in an experimental trammel net fishery. Fish. Manage. Ecol. 15(3): 199-210. http://dx.doi.org/10.1111/j.1365-2400.2008.00607.x
Topic
Marine
Is peer reviewed
true

Authors

author
author
author
author
author
author
author
author

Links

referenced creativework
type
DOI
accessURL
http://dx.doi.org/10.1111/j.1365-2400.2008.00607.x

Document metadata

date created
2017-01-11
date modified
2017-01-11