http://www.cnr.it/ontology/cnr/individuo/prodotto/ID180568
Commercial and non-target species of deep-water trawled muddy habitats on the Maltese continental shelf (Articolo in rivista)
- Type
- Label
- Commercial and non-target species of deep-water trawled muddy habitats on the Maltese continental shelf (Articolo in rivista) (literal)
- Anno
- 2005-01-01T00:00:00+01:00 (literal)
- Alternative label
Mark Dimech, Matthew Camilleri, Michele Gristina, Michel J Kaiser, Patrick J Schembri (2005)
Commercial and non-target species of deep-water trawled muddy habitats on the Maltese continental shelf
in Xjenza (Print)
(literal)
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- Mark Dimech, Matthew Camilleri, Michele Gristina, Michel J Kaiser, Patrick J Schembri (literal)
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- School of Ocean Sciences, University of Wales, Bangor, Menai Bridge, Anglesey, LL59 5AB, United Kingdom.
Malta Centre for Fisheries Science (MCFS), Fort San Lucjan Marsaxlokk, Malta.
Istituto per l'Ambiente Marino Costiero IAMC/CNR Section of Mazara, Via Vaccara 61, 91026 Mazara del
Vallo (TP), Italy.
Department of Biology University of Malta, Msida MSD06, Malta. (literal)
- Titolo
- Commercial and non-target species of deep-water trawled muddy habitats on the Maltese continental shelf (literal)
- Abstract
- y. Prior to joining the European Union, Malta operated a 25nm Exclusive Fishing Zone that was retained as
a Fisheries Conservation Zone (FCZ) following EU membership. The present study was conducted in this FCZ as part
of the ongoing MEDITS trawl survey programme. Otter trawl samples were collected from muddy bottoms at depths of
100-300m. The catch from each haul was sorted into commercial and non-commercial components, and fauna were
identified and counted. Samples for analyses of infauna and sediment characteristics were collected using a 0.0625m²
capacity box-corer. Macrofaunal abundance data for the stations were analysed using ordination techniques (nMDS)
and relationships between environmental variables and faunal assemblages were explored by superimposing individual
variables on the two-dimensional nMDS plots. The analyses clearly separated the commercial species into two distinct
groups of assemblages that seemed to be defined principally by depth: those from inshore and south-eastern stations
(depth range 100-250m) and those from north-western stations (depth range 250-300m). The non-commercial species
showed a similar pattern with assemblages from inshore stations grouping together; however, the offshore stations had
a greater variability in non-target species composition, especially for infauna. For the offshore stations, geographical
position seemed to be important since stations off the north-western coast of the Maltese islands grouped separately
from those off south-eastern Malta. (literal)
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