II-4. Computer simulation and fishery coupled motion between fishing vessel and fishing gear

Aggregation Level and Prediction of Fishing Vessel Behavior and Productivity

Fishing overcapacity has lead to unsustainable harvesting and rent dissipation in global fisheries. Only government intervention of some kind can lead to a reduction in capacity. If efficiency is the primary objective for the regulator, then the least efficient vessels should be decommissioned. Here we analyze the Swedish fishery using a panel of individual fishing trip observations. Trip data ...

Relation between Hook Depth and Fishing Efficiency in Surface Longline Gear

The longline gear employed in this study consisted of "baskets" between floats (Fig. 1). Float lines measured about 7m, while the main line within each basket measured about 1200 m. Branch lines (33 per basket) were 15m long. This standard gear design is modified by ences by each species. Suzuki et al. (1977) state that the same fishing methods and longline gear are frequently used regardless o...

Fishing gear-related injury in California marine wildlife.

We reviewed medical records from select wildlife rehabilitation facilities in California to determine the prevalence of injury in California Brown Pelicans (Pelecanus occidentalis), gulls (Larus spp.), and pinniped species (Zalophus californianus, Mirounga angustirostris, and Phoca vitulina) due to fishing gear entanglement and ingestion from 2001 to 2006. Of 9,668 Brown Pelican, gull, and pinn...

Mobile Fishing Gear Effects on Benthic Habitats: A Bibliography

Effects of trawling on Posidonia oceanica beds. Posid onia beds between Capo Circeo and Terracina (Mid-Tyrrhenian Sea) were studied as part of a study of the effects of illegal trawling inside th e three m ile limit. M ore than a hund red station s, placed along tran sects orthogonal to the shore, were considered. The results obtained show great damage to the Posid onia beds: red uction in mean...

A Sustainable Fishing Plan for the Farne Deeps Nephrops fishery