A bottom-mounted upward-facing 38-kHz echo sounder was deployed at ~400 m and cabled to shore in Masfjorden (~60°52'N, ~5°24'E), Norway. The scattering layers seen during autumn (September-October) 2008 were identified by trawling. Glacier lanternfish (Benthosema glaciale) were mainly distributed below ~200 m and displayed three different diel behavioral strategies: normal diel vertical migrati...

In the Mediterranean Sea, catch of bottom trawl fisheries is composed a complex mix fish and invertebrates with considerable amount discards. Seasonal composition catches discards trawls operating at different depths in central Tyrrhenian Sea were investigated from October 2014 to 2015. The mean total per unit effort (CPUE) ranged between 30.93±8.43 27.52±9.88 kg/h shallow deep fishing grounds,...

United Nations General Assembly Resolution 61/105 on sustainable fisheries (UNGA 2007) establishes three difficult questions for participants in high-seas bottom fisheries to answer: 1) Where are vulnerable marine systems (VMEs) likely to occur?; 2) What is the likelihood of fisheries interaction with these VMEs?; and 3) What might qualify as adequate conservation and management measures to pre...

Bycatch studies have largely ignored population level effects on fish species of little commercial interest. Here we analyze bycatch of the lined seahorse (Hippocampus erectus) in the bait-shrimp trawl fishery in Hernando Beach, Florida, providing the first fisheries data for this species. Based on catch per unit of effort (CPUE), size, sex, and reproductive status of trawled H. erectus, 1) app...

Damage incurred during the catch process is an indicator of overall quality fish and welfare. Because difficult to improve once it has deteriorated, important preserve process. Atlantic cod (Gadus morhua) most species in Barents Sea bottom trawl fishery. Bottom trawling a non-benign fishing method, therefore considered reduce damage imparted capture, subsequently In present study, levels on cap...

Bottom trawling is one of the main pressures on benthic ecosystems, directly impacting targeted species and physically disturbing seabed invertebrate communities, in turn indirectly benthivorous fish entire food web structure functioning. To predict cascading effect bottom demersal it crucial to understand trophic interactions between invertebrates. Here, we assessed diet functioning two areas ...