نتایج جستجو برای: fishing society

تعداد نتایج: 214085  

2011
Vicky W. Y. Lam Ussif Rashid Sumaila Andrew Dyck Daniel Pauly

The development of a new global database of fishing cost is described, and an overview of fishing cost patterns at national, regional, and global scales is provided. This fishing cost database provides economic information required for assessing the economics of fisheries at various scales. It covers variable and fixed costs of maritime countries, representing 98% of global landings in 2005. Li...

2004
Mohammad Babul Hasan John F. Raffensperger

This paper models fishing trawler scheduling for integrated fisheries. Fishing trawler scheduling is a well known problem in the fishery industry. The scheduling problems faced by the fishery industry are more complicated than the traditional merchant trawler scheduling problems. The factors that influence the scheduling of fishing trawlers include catch capacity, processing capacity, etc. We d...

2012
Daniele Bevacqua Fabrizio Capoccioni Paco Melià Simone Vincenzi José M. Pujolar Giulio A. De Leo Eleonora Ciccotti

Both theoretical and experimental studies have shown that fishing mortality can induce adaptive responses in body growth rates of fishes in the opposite direction of natural selection. We compared body growth rates in European eel (Anguilla anguilla) from three Mediterranean stocks subject to different fishing pressure. Results are consistent with the hypotheses that i) fast-growing individuals...

2009
Haixue Shen Martin W. Dorn Vidar Wespestad Terrance J. Quinn

Walleye pollock (Theragra chalcogramma) form persistent midwater and near-bottom schools in the daytime during the winter spawning season in the eastern Bering Sea (EBS). Two spawning areas in the EBS, north of Unimak Island and near the Pribilof Islands, are also the main fishing grounds. To study the schooling pattern of pollock and its impact on fishing behavior on these two fishing grounds,...

2000
SYLVIE GUÉNETTE

In the midst of several management failures, marine reserves are seen as a potential management tool to control overexploitation. In the literature, both modelling and empirical work have demonstrated that closing an area to fishing would lead to an increase in biomass and mean body size within the reserve. Benefits, in the form of increased catch, outside the reserves are sometimes shown using...

Hadi Raeisi, Seyed Abbas Hosseini, Seyed Yousef Paighambari,

The spatial and temporal variations of finfish bycatch assemblage cutlassfish trawl were compared in two fishing areas (Hormozgan and Bushehr). Data were collected on board of commercial vessels in the fishing grounds of Trichiurus lepturus in Bushehr and Hormozgan marine waters between early May 2010 to late November, 2010. There was a significant difference in the bycatch assemblages bet...

D.G Lee K.H Lee S.H Kim, S.W Park

We aimed to develop alternative fishing gear for catching the common octopus, to decrease the use of bait and operating costs in comparison to commercial net pots. A tubular-type pot was designed, and behavioral responses of the common octopus were experimentally monitored in tank and replicated 10 times to compare fishing performances between 300 experimental and 300 commercial net pots in the...

Journal: :Forensic science, medicine, and pathology 2010
Ella Carapetis Aaron J Machado Roger W Byard

A pied cormorant (Phalacrocroax varius) was found sleeping on rocks in a coastal region near Adelaide. Examination revealed entanglement by fishing line with superficial wounds to the left leg. The cormorant was also reported to have ingested a number of fishing hooks, however, the exact location of the hooks was not known. In addition, the bird was found to be underweight and shocked. X-ray ex...

Journal: :Environmental science & technology 2009
Tian Lin Zhaohui Hu Gan Zhang Xiangdong Li Weihai Xu Jianhui Tang Jun Li

DDT remains an important type of persistent organic pollutant (POP) in the environment of China. One of the current applications of DDT in China has been through antifouling paint for fishing ships as an active component. It has been estimated that approximately 5000 t of DDT was released into the Chinese coastal environment during the last two decades. Therefore, sediments in coastal fishing h...

نمودار تعداد نتایج جستجو در هر سال

با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید