Characterizing catches taken by different gears as a step towards evaluating fishing pressure on fish communities

Natural Hazards, Fish Habitat, and Fishing Communities in Alaska

—Fish and fishing communities are iconic symbols of Alaska. Volcanoes, earthquakes, and tsunamis also stand out as processes that define or shape the Alaska landscape. Alaska has numerous fishing ports that regularly rank in the top 10 ports for commercial landings by weight and value in the United States. In addition to commercial fisheries, subsistence fisheries and sport fishing play an impo...

Fishing degrades size structure of coral reef fish communities.

Fishing pressure on coral reef ecosystems has been frequently linked to reductions of large fishes and reef fish biomass. Associated impacts on overall community structure are, however, less clear. In size-structured aquatic ecosystems, fishing impacts are commonly quantified using size spectra, which describe the distribution of individual body sizes within a community. We examined the size sp...

Evaluating Importance: A Step Towards Text Summarization

Opposite selection on behavioural types by active and passive fishing gears in a simulated guppy fishery

Opposite selection on behavioural types by active and passive fishing gears in a simulated guppy fishery B. Diaz Pauli1†, M. Wiech1, M. Heino1, 2, 3 and A. C. Utne-Palm1, 2 1 Department of Biology, University of Bergen, Norway 2 Institute of Marine Research, Bergen, Norway 3 International Institute for Applied Systems Analysis, Laxenburg, Austria † Author for correspondence. E-mail addresses: b...

A simplified model for bottom trawl fishing gears

Computational modeling is a valuable complementary tool to assess behavior of bottom trawl fishing gears. A simplified model of the gear that mainly affects to the net is proposed. The model is constrained to steady towing conditions, flat seabed and gear symmetry. Simulations proportionate a number of relevant outcomes like distribution of tensions at the warp, balance of forces at the otterbo...