Download or read book Evaluation of a U S West Coast Groundfish Habitat Conservation Regulation Via Analysis of Spatial and Temporal Patterns of Trawl Fishing Efforts written by Marlene A. Bellman and published by . This book was released on 2004 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recent emphasis on linkages between essential fish habitat and fish stock productivity has raised concerns about the management of fishing activities such as trawling, which have the potential to impact fish habitat. Knowing specifically where and how intensively trawl effort has occurred over time provides ecologists with the necessary background for habitat impact and recovery studies, and provides fishery managers with an assessment of how habitat conservation objectives are being met. The objectives of this study were to (1) examine the extent to which the 2000 Pacific Fishery Management Council footrope restriction has shifted and reduced trawl fishing effort on Oregon fishing grounds, (2) to relate these changes in distribution to the benthic habitat type over which they occur, and (3) to develop methods for enhancing fine-scale spatial review of targeted fishing effort. Density analysis of available trawl start locations provided a spatial and temporal understanding of how fishing efforts increased and decreased in relation to habitat distribution and fishery management actions between 1995 and 2002. Trawl effort patterns exhibit significant inter-annual variability and patchy distribution. Areas of increased fishing effort were still evident between years, despite an overall decline in trawl tows across the time scale of this study. Tow end point locations for the years 1998-2001 were retrieved from manual logbooks for five reference sites located in the proximity of rock habitat features. Trawl towlines were mapped from start to end point and demonstrated a marked enhancement of fine-scale fishing effort resolution, with increased ability to identify effort shifts over benthic habitat. Distinct spatial shifts in fishing intensity (measured as km towed) away from rock habitat were evident at all reference sites, with an average reduction of 86%. Some slight shifts into surrounding unconsolidated sediments also occurred, indicating effort displacement as well as reduction. Fishing intensity was calculated from commercial trawl and research trawl survey towlines to achieve the most accurate assessment of fishing impacts and potential habitat recovery areas. Research trawling intensity was less than 1% of commercial trawl effort originating from the same sites. A brief comparison of Oregon vessel towlines and California vessel towlines demonstrated similar targeted fishing patterns by both fleets, except at one site. Results indicate that the footrope restriction, in conjunction with associated landing limits, was effective in protecting rocky habitats from trawl fishing impacts. Reference areas were identified where essential fish habitat (EFH) recovery is likely occurring off the coast of Oregon. Substantial regulatory changes continue in this fishery, with trip limits and gear restrictions continuously adjusted. Continued monitoring and review of spatial trawl data would assist in fishery management decision-making and assess conservation objectives for depleted groundfish and associated habitats. Future research should incorporate analysis of catch data and expand the review of trawl towlines for the entire US West coast groundfish fishery. The trawl towline spatial analysis developed in this work is a credible method for reviewing fishing effort at the scale of the fishery and in relation to detailed habitat data. The research presented here provides an example of how an interdisciplinary approach and critical assessment of data can work to resolve marine management challenges.

Download or read book Evaluation of a US West Coast Groundfish Habitat Conservation Regulation Via Analysis of Spatial and Temporal Patterns of Trawl Fishing Effort written by Marlene A. Bellman and published by . This book was released on 2005 with total page 76 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Essential Fish Habitat Designation and Minimization of Adverse Impacts Pacific Coast Groundfish Fishery Management Plan written by and published by . This book was released on 2005 with total page 670 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fishery Bulletin written by and published by . This book was released on 2014 with total page 364 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Advances in Fisheries Science written by Andrew I. L. Payne and published by John Wiley & Sons. This book was released on 2009-01-22 with total page 568 pages. Available in PDF, EPUB and Kindle. Book excerpt: This timely book brings readers up to date on the wide range of advances made in fisheries science since the publication in 1957 of On the Dynamics of Exploited Fish Populations (Beverton and Holt), regarded by many fisheries scientists as one of the most important books on fisheries yet published. Traditional fishery subjects covered include historic declines and changes in fishing fleets, fisheries management and stock assessments, data-poor situations, simulation and modelling of fished stocks, fisheries economics, assessing reproductive potential and dispersal of larvae, fisheries for sharks and rays, and use of marine technology. Additionally, related subjects of increasing importance now that ecological approaches to management are coming to the fore are presented. They include benthic ecology, ecosystem changes linked to fishing, life history theory, the effects of chemicals on fish reproduction, and use of sounds in the sea by marine life. Several chapters offer stimulating philosophical discussion of the many controversial areas still existing. This significant book, edited by Andy Payne, John Cotter and Ted Potter and containing contributions by world-renowned fisheries scientists, including many based at Cefas (where Beverton and Holt's original work was carried out) is an essential purchase for fisheries managers and scientists, fish biologists, marine scientists and ecologists. Libraries in all universities and research establishments where fisheries and biological sciences are studied and taught are likely to need copies of this landmark publication.

Download or read book Ecosystem Based Fisheries Management written by Jason S. Link and published by Oxford University Press. This book was released on 2022-01-25 with total page 713 pages. Available in PDF, EPUB and Kindle. Book excerpt: "By examining a suite of over 90 indicators for nine major U.S. fishery ecosystem jurisdictions, Link and Marshak systematically track the progress the U.S. has made toward advancing ecosystem-based fisheries management (EBFM) and making it an operational reality. Covering a range of socioeconomic, governance, environmental forcing, major pressures, systems ecology, and fisheries criteria, they evaluate progress toward EBFM in the U.S., covering a wide range of longitude, latitude, and parts of major ocean basins, representing over 10% of the world’s ocean surface area. They view progress toward the implementation of EBFM as synonymous with improved management of living marine resources in general, and highlight lessons learned from a national perspective. Although US-centric, the lessons learned are applicable for all parts of the global ocean. Though much work remains, significant progress has been made to better address many of the challenges facing the sustainable management of our living marine resources"--Publisher's description.

Download or read book Advances in Fisheries Bioeconomics written by Juan Carlos Seijo and published by Routledge. This book was released on 2018-04-17 with total page 357 pages. Available in PDF, EPUB and Kindle. Book excerpt: Efforts to effectively conserve and manage marine resources are facing increasing complexity of environmental and governance challenges. To address some of these challenges, this book presents advancements in fisheries bioeconomics research that provides significant ideas for addressing emerging environmental and fisheries management issues. Advances in Fisheries Bioeconomics gives insights into innovative approaches dealing with these issues, as well as novel ideas on changes in fisheries management paradigms. With contributions from leading experts in the field, this book offers an examination of a number of topics including: ecosystem based fisheries management; by-catch management and discard bans; the number of players in the fisheries game; the effects of ocean acidification; and the trends and impacts of eco-labeling and eco-certification of fisheries. Through integrating resource biology and ecology with the economics of fishers’ behaviour, the authors provide valuable analysis of the current issues in fisheries management. This book will be of interest to those on advanced courses in fisheries science, natural resource biology and ecology, and environmental and natural resource economics. It will also appeal to researchers, policy makers, and advocacy groups around the world.

Download or read book GIS spatial Analyses in Fishery and Aquatic Sciences written by Tom Nishida and published by . This book was released on 2007 with total page 518 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Canadian Journal of Fisheries and Aquatic Sciences written by and published by . This book was released on 2009 with total page 536 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conservation and Adaptive Management of Seamount and Deep sea Coral Ecosystems written by Robert Y. George and published by Rosenstiel School of Marine and Atmospheric Science University of Miami. This book was released on 2007 with total page 336 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Rationalization of the Pacific Coast Groundfish Limited Entry Trawl Fishery Including Regulatory Impact Review and Initial Regulatory Flexibility Analysis written by and published by . This book was released on 2009 with total page 848 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Trawling and Dredging on Seafloor Habitat written by National Research Council and published by National Academies Press. This book was released on 2002-08-09 with total page 137 pages. Available in PDF, EPUB and Kindle. Book excerpt: Concerns over the potential ecological effects of fishing have increased with the expansion of fisheries throughout the marine waters of the United States. Effects of Trawling and Dredging on Seafloor Habitat describes how assessment of fishing impacts depends on gear type, number and location of bottom tows, and the physical and biological characteristics of seafloor habitats. Many experimental studies have documented acute, gear-specific effects of trawling and dredging on various types of habitat. These studies indicate that low mobility, long-lived species are more vulnerable to towed fishing gear than short-lived species in areas where the seabed is often disturbed by natural phenomena. Trawling and dredging may also change the composition and productivity of fish communities dependent on seafloor habitats for food and refuge. The scale of these impacts depends on the level of fishing effort. This volume presents color maps of fishing effort for all regions with significant bottom trawl or dredge fisheries-the first time that such data has been assembled and analyzed for the entire nation.

Download or read book Changes to Pacific Coast Groundfish Essential Fish Habitat Conservation Areas and Boundaries of the Trawl Gear Rockfish Conservation Area written by and published by . This book was released on 2019 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Changes to Groundfish Essential Fish Habitat Conservation Areas and Boundaries of the Trawl Gear Rockfish Conservation Areas written by and published by . This book was released on 2018 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Essential Fish Habitat Designation and Minimization of Adverse Impacts Pacific Coast Groundfish Fishery Management Plan written by and published by . This book was released on 2005 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Data limited Research in Stock Assessment to Increase the Understanding of Fisheries Resources and Inform and Improve Management Efforts written by Giuseppe Scarcella and published by Frontiers Media SA. This book was released on 2023-04-10 with total page 294 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fisheries Off West Coast States Pacific Coast Groundfish Fishery Management Plan Trawl Rationalization Program Midwater Trawl Requirements Us National Oceanic and Atmospheric Administration Regulation Noaa 2018 Edition written by The Law Library and published by Independently Published. This book was released on 2019-01-09 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Law Library presents the complete text of the Fisheries off West Coast States - Pacific Coast Groundfish Fishery Management Plan - Trawl Rationalization Program - Midwater Trawl Requirements (US National Oceanic and Atmospheric Administration Regulation) (NOAA) (2018 Edition). Updated as of May 29, 2018 This final rule clarifies the regulatory requirements for vessels using midwater trawl gear in the Pacific Coast Groundfish Fishery Shorebased Individual Fishing Quota Program. This action is needed to eliminate inconsistencies and reduce confusion in the current regulations. For vessels targeting Pacific whiting, the action clarifies that the retention of prohibited and protected species is allowed until landing. The disposition of prohibited and protected species is specified consistent with the Pacific Coast Groundfish Fishery Management Plan (groundfish FMP), the Pacific Coast Salmon Fishery Management Plan (salmon FMP), and other applicable law. This ebook contains: - The complete text of the Fisheries off West Coast States - Pacific Coast Groundfish Fishery Management Plan - Trawl Rationalization Program - Midwater Trawl Requirements (US National Oceanic and Atmospheric Administration Regulation) (NOAA) (2018 Edition) - A dynamic table of content linking to each section - A table of contents in introduction presenting a general overview of the structure