We have demonstrated in behavioural experiments that success in capturing prey from surfaces in 'trawling Myotis' (Leuconoë-type) depends on the acoustic properties of the surface on which the prey is presented. Two types of surface structure were ensonified with artificial bat signals to probe their acoustic characteristics. We have shown that perception of prey by echolocation is easier if th...

For prawn trawling systems, drag reduction is a high priority as the trawling process is energy intensive. Large benefits have occurred through the use of multiple-net rigs and thin twine in the netting. An additional positive effect of these successful twine-area reduction strategies is the reduced amount of otter board area required to spread the trawl systems, which leads to further drag red...

Bottom trawl survey data are commonly used as a sampling technique to assess the spatial distribution of commercial species. However, this sampling technique does not always correctly detect a species even when it is present, and this can create significant limitations when fitting species distribution models. In this study, we aim to test the relevance of a mixed methodological approach that c...

Recent sampling of seamount and ridge habitats in the New Zealand Exclusive Economic Zone has yielded new cyclostome bryozoan taxa. We describe here one new genus, a new name, Dartevellopora (to replace the generic homonym Dartevellia Borg, 1944) and ten new species, comprising Filicisparsa albobrunnea n. sp. (Oncousoeciidae), Discantenna tumba n. gen., n. sp. (Diastoporidae), Supercytis gracil...

The Northern Adriatic Sea is historically subjected to intensive bottom trawling and hydraulic dredging for clam harvesting, which are known have deleterious effects on benthic habitats. In order gather information the destructive impact of dredging, we investigated abundance assemblage composition soft-bottom macrofauna in a coastal area North (Mediterranean Sea), by comparing year before afte...

Global shrimp catches are reported primarily in association with large industrial trawling, but they also occur through small-scale fishing, which plays a substantial role traditional communities. We developed an Ecopath model north-eastern Brazil, and applied temporally dynamic (Ecosim) to evaluate the potential effects of different fishing effort control policies environmental changes on mari...

The Antarctic plunderfishes Artedidraco lönnbergi and A. skottsbergi are small, bottom dwelling species inhabiting the continental shelf of the High Antarctic Zone. During cruise 97-9 of the US RV Nathaniel Palmer during the summer in the south-western Ross Sea, samples of both species were collected by means of bottom trawling. On the basis of macroscopic and histological analysis, we present ...