Dynamic modeling of trawl fishing gear components
نویسندگان
چکیده
منابع مشابه
Bio-economic evaluation of implementing trawl fishing gear with different selectivity.
The paper develops a biological-economic evaluation tool to analyse the consequences for trawl fishers of implementing more selective fishing technologies. This is done by merging a dynamic biological population model and an economic cost-benefit evaluation framework to describe the consequences for the fish stocks, fishermen and society. The bio-economic evaluation is applied to the case of th...
متن کاملA 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...
متن کاملFishing lantern trawl; Environmental, social and economic aspects of the Oman Sea
Lanternfish is one of the most important and aquatic reserves in the Oman Sea. After the cessation of the fish lantern fishing project provided by foreign vessels owned by Iranian companies by the Iranian Fisheries Organization, the impact of the activity of foreign vessels on aquatic resources should be considered for reasons other than those envisaged in the contracts and research plans. Ligh...
متن کاملFishing 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...
متن کاملMobile 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...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Ciencia y tecnología de buques
سال: 2012
ISSN: 1909-8642
DOI: 10.25043/19098642.71