Identifying Taxonomic Groups Vulnerable to Bottom Longline Fishing Gear in the Ross Sea Region
نویسنده
چکیده
Implementing measures to avoid significant adverse impacts to vulnerable marine ecosystems (VMEs) requires a specific list of the taxa that are considered vulnerable in the fishery being assessed. New Zealand identified an interim list of taxa to monitor in fishery by-catch in the Ross Sea as part of its benthic fisheries impact assessment. The rationale for including or excluding each taxonomic group is described relative to the group’s fragility, longevity, organism size and spatial distribution. Additional considerations such as organism mobility, community diversity, endemism, taxonomic resolution and presence in fishery by-catch are also important. Thirteen coarse-resolution taxonomic groups are identified as vulnerable to bottom longline fishing activities in the Ross Sea region, including two indicator-only taxa.
منابع مشابه
Deep-water longline fishing has reduced impact on Vulnerable Marine Ecosystems
Bottom trawl fishing threatens deep-sea ecosystems, modifying the seafloor morphology and its physical properties, with dramatic consequences on benthic communities. Therefore, the future of deep-sea fishing relies on alternative techniques that maintain the health of deep-sea ecosystems and tolerate appropriate human uses of the marine environment. In this study, we demonstrate that deep-sea b...
متن کاملPelagic Longline Fishing Gear: A Brief History and Review of Research Efforts to Improve Selectivity
Pelagic longline gear had several independent evolutions, but the most widespread form appears to have been originally developed by the Japanese as early as the mid-19th century. Technological developments such as polyamide monofilament line and modern fishing vessel construction have resulted in the evolution and expansion of this gear type as the primary worldwide method of commercially harve...
متن کاملQuantifying Sea Turtle Mortality with PSATs
Quantifying Sea Turtle Mortality with PSATs 1 New Discoveries in the Olfactory Capability of Sea Turtles 6 MHLC7—Evaluation and Comment 10 Compendium—Fisheries Research in Brief 11 (continued on page 2) The incidental capture of marine turtles in longline fishing gear is generally accepted to be a significant factor contributing to the decline of sea turtle populations in both the Pacific and A...
متن کاملConditions of Hooks After Fishing Operation Used on Bottom Longlines in Çanakkale Region (Northern Aegean Sea)
This study was conducted for determining the conditions of hooks after fishing operations in May 2011 – June 2012 on the coasts of Dardanelles Strait and Gallipoli Peninsula. Twenty longline operations with three replication were carried out between 5 and 500 m sea depth. Each longline consisted of 200 hooks. 60000 m of fish line was outspread with a total of 12000 hooks and a total of 1360 ind...
متن کامل