Download or read book Ecological Risk Assessment of the Northern Territory Offshore Snapper Fisheries written by Northern Territory. Department of Regional Development, Primary Industry, Fisheries, and Resources and published by . This book was released on 2009 with total page 34 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Global Assessment of Fisheries Bycatch and Discards written by Dayton L. Alverson and published by Food & Agriculture Org.. This book was released on 1994 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors estimate that between 17.9 and 39.5 million tons (average 27.0 million) of fish are discarded each year in commercial fisheries. These estimates are based on a review of over 800 papers. The highest quantities of discards are from the Northwest Pacific while tropical shrimp trawl fisheries generate a higher proportion of discards than any other fishery type, accounting for one third of the global total. Of four major gear groups, shrimp trawls stand alone at the top of the list; bottom trawls, long-lines and pot fisheries come next. The third group consists of Japanese high-seas drift net fisheries, Danish seines and purse seines for capelin. Relatively low levels result from pelagic trawls, small pelagic purse seines and some of high seas drift nets. The authors point to inadequate data to determine the biological, ecological, economic and cultural impacts of discards although economic losses run to billions of dollars. However, it appears most likely that socio-cultural attitudes towards marine resources will guide international discard policies. Techniques to reduce bycatch levels including traditional net selectivity, fishing gear development and time/area restrictions, are discussed. Effort reduction, incentive programmes and individual transferable quotas (that make the vessel responsible for bycatch reduction) are seen as promising avenues for the future. However, quick solutions to the problem are unlikely and much more information is required. The publication includes a diskette with the complete Bycatch Database, which was compiled for the study, and a summary of it.
Download or read book Ecological Risk Assessment of the Fundian Channel Browns Bank Area of Interest written by Tanya Koropatnick and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "An ecological risk assessment was conducted for the Fundian Channel-Browns Bank Area of Interest (AOI) to establish the relative risks presented by a variety of human activities to the identified conservation priorities for a potential Marine Protected Area (MPA). Activities considered in the assessment were limited to those that currently occur within the AOI (fisheries, and marine transportation) and those that may occur within the near future (i.e. midwater trawl). Risk levels were determined by assessing the consequence and likelihood of interactions between activity/pressures and conservation priorities for the site. Consequence was determined by estimating the magnitude of each interaction (i.e., exposure based on the expected level of human activity) and the sensitivity of the ecological component to the pressure. Consequence levels were combined with the likelihood (i.e., probability) of the interaction to determine an overall level of risk. The findings of this assessment will contribute to discussion and decision-making on activities that would be allowed under the regulations within a potential Fundian Channel-Browns Bank MPA, and will help inform the design of the boundary and zones for the potential future MPA"--Abstract, page v.
Download or read book Ecological Risk Assessment for the Effects of Fishing written by and published by . This book was released on 2012 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Pacific Region Groundfish Science Section of Fisheries and Oceans Canada applied the Ecological Risk Assessment for the Effects of Fishing (ERAEF) framework to a portion of the groundfish bottom trawl fishery in Hecate Strait, British Columbia. ERAEF was developed as a tool for informing an Ecosystem-based Approach to Fisheries Management in Australia.
Download or read book Oceanic Abstracts written by and published by . This book was released on 1996 with total page 802 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book A Global Assessment of Fisheries Bycatch and Discards written by Dayton L. Alverson and published by Food & Agriculture Organization of the UN (FAO). This book was released on 1994 with total page 264 pages. Available in PDF, EPUB and Kindle. Book excerpt: The authors estimate that between 17.9 and 39.5 million tons (average 27.0 million) of fish are discarded each year in commercial fisheries. These estimates are based on a review of over 800 papers. The highest quantities of discards are from the Northwest Pacific while tropical shrimp trawl fisheries generate a higher proportion of discards than any other fishery type, accounting for one third of the global total. Of four major gear groups, shrimp trawls stand alone at the top of the list; bottom trawls, long-lines and pot fisheries come next. The third group consists of Japanese high-seas drift net fisheries, Danish seines and purse seines for capelin. Relatively low levels result from pelagic trawls, small pelagic purse seines and some of high seas drift nets. The authors point to inadequate data to determine the biological, ecological, economic and cultural impacts of discards although economic losses run to billions of dollars. However, it appears most likely that socio-cultural attitudes towards marine resources will guide international discard policies. Techniques to reduce bycatch levels including traditional net selectivity, fishing gear development and time/area restrictions, are discussed. Effort reduction, incentive programmes and individual transferable quotas (that make the vessel responsible for bycatch reduction) are seen as promising avenues for the future. However, quick solutions to the problem are unlikely and much more information is required. The publication includes a diskette with the complete Bycatch Database, which was compiled for the study, and a summary of it.
Download or read book Federal Register written by and published by . This book was released on 1997 with total page 172 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Application of an Ecological Risk Assessment Framework to Inform Ecosystem based Management for SGaan Kinghlas Bowie Seamount and Endeavour Hydrothermal Vents Marine Protected Areas written by and published by . This book was released on 2015 with total page 15 pages. Available in PDF, EPUB and Kindle. Book excerpt: The present report summarizes discussion and guidance from DFO Pacific Region Science on key modifications to the Ecological Risk Assessment Framework (ERAF) prototype methodology that were made for two applications of semi-quantitative Level 2 risk assessment in the Endeavour Hydrothermal Vents (EHV) and SGaan Kinghlas-Bowie Seamount (SKB) Marine Protected Areas (MPAs) and the performance of the ERAF with respect to ranking significant ecosystem components (SECs) with respect to cumulative risk and the drivers (activities and stressors, uncertainty) of risk in these areas. The results of these applications are intended to further the development of the ERAF as a tool for identifying and assessing the relative risk of harm to SECs from human activities and their associated stressors and to inform the development of risk-based monitoring indicators in both the EHV and SKB MPAs.
Download or read book Australian National Bibliography written by and published by National Library Australia. This book was released on 1978 with total page 1734 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Pollution Emerging Issues and Challenges written by Elisabeth Marijke Anne Strain and published by Frontiers Media SA. This book was released on 2022-07-04 with total page 202 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Marine Freshwater Research written by and published by . This book was released on 2004 with total page 460 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Federal Register Index written by and published by . This book was released on 1994 with total page 684 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Northern Territory Barramundi Farming Handbook written by Glenn Schipp and published by . This book was released on 2007 with total page 71 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Elasmobranch Biodiversity Conservation and Management written by Sarah L. Fowler and published by IUCN. This book was released on 2002 with total page 282 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Darwin Elasmobranch Biodiversity Conservation and Management project in Sabah held a three-day international seminar that included a one-day workshop in order to highlight freshwater and coastal elasmobranch conservation issues in the region and worldwide, to disseminate the result of the project to other Malaysian states and countries, and to raise awareness of the importance of considering aspects of elasmobranch biodiversity in the context of nature conservation, commercial fisheries management, and for subsistence fishing communities. These proceedings contain numerous peer-reviewed papers originally presented at the seminar, which cover a wide range of topics, with particular reference to species from freshwater and estuarine habitats. The workshop served to develop recommendations concerning the future prospects of elasmobranch fisheries, biodiversity, conservation and management. This paper records those conclusions, which highlight the importance of elasmobranchs as top marine predators and keystone species, noting that permanent damage to shark and ray populations are likely to have serious and unexpected negative consequences for commercial and subsistence yields of other important fish stocks.
Download or read book Fully protected Marine Reserves written by Callum M. Roberts and published by . This book was released on 2000 with total page 276 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Improving Fish Stock Assessments written by National Research Council and published by National Academies Press. This book was released on 1998-02-27 with total page 194 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ocean harvests have plateaued worldwide and many important commercial stocks have been depleted. This has caused great concern among scientists, fishery managers, the fishing community, and the public. This book evaluates the major models used for estimating the size and structure of marine fish populations (stock assessments) and changes in populations over time. It demonstrates how problems that may occur in fisheries dataâ€"for example underreporting or changes in the likelihood that fish can be caught with a given type of gearâ€"can seriously degrade the quality of stock assessments. The volume makes recommendations for means to improve stock assessments and their use in fishery management.
Download or read book Impacts of climate change on fisheries and aquaculture written by Food and Agriculture Organization of the United Nations and published by Food & Agriculture Org.. This book was released on 2019-01-06 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report indicates that climate change will significantly affect the availability and trade of fish products, especially for those countries most dependent on the sector, and calls for effective adaptation and mitigation actions encompassing food production.
