Essays about: "fishing gear"

Showing result 1 - 5 of 22 essays containing the words fishing gear.

  1. 1. Monitoring marine alien and invasive species. A comparison between the traditional method (eRAS) and DNA-based identification of species.

    University essay from Göteborgs universitet / Institutionen för biologi och miljövetenskap

    Author : Josefin Holm; [2023-08-22]
    Keywords : ;

    Abstract : There is a major concern with the uncontrolled spreading of alien and invasive species, caused by an increase in travelling by boat globally. These are dispersed via ballast water, by fouling on ships and in fishing gear. READ MORE

  3. 2. Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall

    University essay from Lunds universitet/Institutionen för naturgeografi och ekosystemvetenskap

    Author : Duncan Jones; [2023]
    Keywords : Geography; Geographical Information Systems; GIS; Habitat Modelling; Harbour Porpoise; MaxEnt; Tidal Processes; Conservation; Earth and Environmental Sciences;

    Abstract : Investigating the influence of the tidal regime on harbour porpoise Phocoena phocoena distribution in Mount’s Bay, Cornwall Abstract Unintentional by-catch in fishing gear is a significant cause of mortality of harbour porpoises in UK waters. Understanding the spatial distribution of harbour porpoises at fine scales and how this changes over time is essential when trying to understand where these lethal interactions might occur. READ MORE

  4. 3. Making nets more acoustically visible : Floats as passive mitigation measures to reduce bycatch of harbour porpoise (Phocoena phocoena) in gillnets

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Frida Rosshagen; [2023]
    Keywords : toothed whales; harbour porpoise; Phocoena phocoena; incidental capture; bycatch; fisheries; fishing gear; ; gillnet; mitigation; reduction; low-cost; passive acoustic reflector; float;

    Abstract : Incidental capture in fishing gear is today affecting at least 112 marine mammal species worldwide and for many smaller toothed whale species (Odontocete), gillnets are considered to be the largest problem. Although some effective mitigation measures exists, these are often context specific and many might be hard to implement due to reasons such as high costs and maintenance. READ MORE

  5. 4. The Ecological and Anthropogenic Impacts of fishing gear in a tropical system : How the size of Spotted Rose Snapper (Lutjanus guttatus) and the ratio of target catch, is influenced by approved fishing gear within a marine area of responsible fishing in the South-Western Gulf of Nicoya, Costa Rica.

    University essay from Linnéuniversitetet/Institutionen för biologi och miljö (BOM)

    Author : Alfred Eriksson; [2023]
    Keywords : Overfishing; overexploitation; Spotted Rose Snapper; Lutjanus guttatus; Gulf of Nicoya; Costa Rica; marine protected areas; artisinal fishermen; bycatch; Costa Rican Institute of Fisheries and Aquaculture; incopesca; fishing gear; longlines;

    Abstract : The oceans are essential for humanity, yet these systems continue to be degraded and suffer from pollution, habitat destruction and overexploitation. The Costa Rican Gulf of Nicoya is a productive gulf that is fished by both large-scale industrial fisheries and small-scale artisanal fishermen. READ MORE

  6. 5. Assessment of fish welfare in trawl caught atlantic herring

    University essay from SLU/Dept. Of Aquatic Resources

    Author : Mafalda de Leitão Tomás; [2022]
    Keywords : welfare; pelagic fisheries; clupea harengus; stress;

    Abstract : With the gain of scientific evidence concerning nociception in fish, the awareness about fish's welfare has been increasing not only for authorities but also for consumers. However, there is still a long way to go concerning how fish are being caught and slaughtered. READ MORE