Download or read book Northeast Fisheries Science Center Bottom Trawl Survey Protocols for the NOAA Ship Henry B Bigelow written by Philip J. Politis and published by . This book was released on 2014 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: "This document describes the standard operational protocols for conducting the Northeast Fisheries Science Center spring and autumn Multispecies Bottom Trawl Survey aboard the NOAA Ship Henry B. Bigelow. This manual documents current survey protocols and standard sampling gear implemented in spring 2009 after the 2008 survey calibration with the NOAA Ship Albatross IV and the NOAA Ship Henry B. Bigelow. It is intended to serve as a reference manual to ensure survey standardization and aid in the training of new personnel"--Executive summary.
Download or read book Proposed Vessel Calibration Studies for NOAA Ship Henry B Bigelow written by NEFSC Vessel Calibration Working Group and published by . This book was released on 2007 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Standardized bottom trawl surveys have been an integral component of Northeast Fisheries Science Center ecosystem monitoring activities since the autumn of 1963 (Azarovitz et al. 1997). The autumn survey was supplemented by a spring survey starting in 1968 and a winter series was initiated in 1992. These surveys are designed to characterize spatial and temporal changes in the abundance of fish and macroinvertebrate species vulnerable to the sampling gear, demographic attributes of these species, and ecological interactions based on food habits studies and other observations. A stratified random sampling design has been employed for all surveys and biological samples are collected using a multi-stage cluster sampling design. Observations on lower trophic levels and oceanographic properties are also collected in conjunction with these surveys and in complementary ecosystem monitoring cruises. The NOAA Ship Albatross IV (Albatross) has been the principal research vessel employed throughout the series although the NOAA Ship Delaware II (Delaware) has also been used in selected bottom trawl surveys. An extensive series of calibration experiments has been undertaken to test for vessel differences and permit conversion of Delaware catches to Albatross catch units to account for these changes (Byrne and Fogarty 1985; Byrne and Forrester 1991). For general overviews of the design and analysis of comparative fishing trials, see Bergh et al. (1990) and Pelletier (1998). The Albatross is scheduled to be replaced by the NOAA Ship Henry B. Bigelow (Bigelow) in 2008, necessitating a new series of vessel calibration studies. The objective of the proposed experiments is to develop Bigelow-Albatross conversion coefficients to maintain consistent time series for the purpose of meeting stock assessment and ecosystem monitoring requirements. In addition to the vessel replacement, a change in the trawl gear used in standardized surveys from a Yankee No. 36 to a four-seam bottom trawl will be made at the recommendation of the MAFMC/NEFMC Trawl Advisory Panel (Brown 2007). Changes in selected sampling protocols, including tow speed and duration for the Bigelow are also recommended by the panel in conjunction with the gear change"--Introduction.
Download or read book An Evaluation of the Bottom Trawl Survey Program of the Northeast Fisheries Center written by Northeast Fisheries Center. Survey Working Group and published by . This book was released on 1988 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Habitat and Distribution Models of Marine and Estuarine Species Advances for a Sustainable Future written by Mary C. Fabrizio and published by Frontiers Media SA. This book was released on 2022-11-23 with total page 268 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Seasonal to Decadal Prediction of Marine Ecosystems Opportunities Approaches and Applications written by Mark R. Payne and published by Frontiers Media SA. This book was released on 2019-06-28 with total page 136 pages. Available in PDF, EPUB and Kindle. Book excerpt: Tremendous advances in oceanographic observing and modeling systems over the last decade have led to unprecedented developments in the nature of information available to marine science. While improvements in observational technologies and networks have garnered much attention, remarkable developments in forecasting the ocean have received much less focus. Exploiting this new predictive skill to improve scientific understanding, generate advice and aid in the management of marine resources, is emerging as one of the new challenges of marine science. Translating predictions of the physical environment into biological outcomes, however, is not straightforward. Fisheries scientists, for example, have been trying to understand the links between physics and biology, and generate predictions of variables such as recruitment, for close to a century, with limited success. Nevertheless, spatial distributions and the timing of key events, which have received less focus, are often tightly linked to the physical environment and may have management-relevant applications. The first-such forecasts based on this skill are now starting to emerge. This Frontiers in Marine Science Research Topic provides a snapshot of the state-of-the-art in Marine Ecological Prediction. It covers the opportunities for developing such forecasts, technical approaches that could be employed, and examples where the technology is already being applied. This body of work therefore marks an important milestone on the route to developing this new and exciting field of marine science.
Download or read book Researching People and the Sea written by Madeleine Gustavsson and published by Springer Nature. This book was released on 2021-02-15 with total page 352 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this unique edited collection, social scientists reflect upon and openly share insights gathered from researching people and the sea. Understanding how people use, relate to and interact with coastal and marine environments has never been more important, with social scientists having an increasingly vital contribution to make. Yet practical experiences in deploying social science approaches in this field are typically hidden away in field notes and unpublished doctoral manuscripts, with the opportunity for shared learning that comes from doing research often missed. There is a need for reflection on how social science knowledge is produced. This collection presents experiences from the field, its necessary reflexivity and innovation in methods, and the challenges and opportunities of translating across disciplines and policy. It brings to light the tacit expertise needed to study people and the sea and offers lessons which readers could employ in their own research. With a focus on the future direction of marine social sciences, the volume is highly relevant to masters and doctoral students and more experienced researchers engaged in studying people and the sea, as well as policy makers, practitioners and scientists wishing to understand the social dimension of marine and coastal environments. Chapters 2 and 3 are available open access under a Creative Commons Attribution 4.0 International License via link.springer.com.
Download or read book An Evaluation of the Bottom Trawl Survey Program of the Northeast Fisheries Center written by and published by . This book was released on 1988 with total page 83 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ecosystem Based Fisheries Management written by Jason S. Link and published by Oxford University Press. This book was released on 2021-11-15 with total page 672 pages. Available in PDF, EPUB and Kindle. Book excerpt: Ecosystem-based fishery management (EBFM) is rapidly becoming the default approach in global fisheries management. The clarity of what EBFM means is sharpening each year and there is now a real need to evaluate progress and assess the effectiveness and impacts. By examining a suite of over 90 indicators (including socioeconomic, governance, environmental forcing, major pressures, systems ecology, and fisheries criteria) for 9 major US fishery ecosystem jurisdictions, the authors systematically track the progress the country has made towards advancing EBFM and making it an operational reality. The assessment covers a wide range of data in both time (multiple decades) and space (from the tropics to the poles, representing over 10% of the world's ocean surface area). The authors view progress towards the implementation of EBFM as synonymous with improved management of living marine resources in general, and highlight the findings from a national perspective. Although US-centric, the lessons learned are directly applicable for all parts of the global ocean. Much work remains, but significant progress has already been made to better address many of the challenges facing the sustainable management of our living marine resources. This is an essential and accessible reference for all fisheries professionals who are currently practicing, or progressing towards, ecosystem-based fisheries management. It will also be of relevance and use to researchers, teachers, managers, and graduate students in marine ecology, fisheries biology, biological oceanography, global change biology, conservation biology, and marine resource management.
Download or read book Fishermen s Report written by Northeast Fisheries Science Center (U.S.) and published by . This book was released on 1999 with total page 68 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Small Pelagics Trawl Survey NOAA Ship Chapman 91 02 42 written by Charles M. Roithmayr and published by . This book was released on 1991* with total page 17 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Retrospective Analysis of Suspiciously Small Catches in the National Marine Fisheries Service West Coast Triennial Bottom Trawl Survey written by Alaska Fisheries Science Center Nationa and published by BiblioGov. This book was released on 2013-06 with total page 144 pages. Available in PDF, EPUB and Kindle. Book excerpt: In the 1970's the National Oceanic and Atmospheric Administration (NOAA) was made to manage our oceanic and atmospheric resources. The Alaska Fisheries Science Center is the research branch for marine life and coastal oceans off parts of the U.S. west coast and Alaska. This includes the Eastern Bering Sea where some the worlds most important commercial fishing takes place. Their mission is to develop and maintain scientific exploration to help understand and manage that region's environment. Over the years there have been many reports published which discuss their findings; this is one of them.
Download or read book Description of the NEFC Commercial Fishery and Bottom Trawl Survey Data Processing Formats written by Ralph K. Mayo and published by . This book was released on 1978 with total page 45 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Fishes of the Salish Sea written by Theodore W. Pietsch and published by . This book was released on 2019 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Fishes of the Salish Sea is the definitive guide to the identification and history of the marine and anadromous fishes of Puget Sound and the Straits of Georgia and Juan de Fuca. This comprehensive three-volume set, featuring striking illustrations of the Salish Sea's 260 fish species by noted illustrator Joseph Tomelleri, details the ecology and life history of each species and recounts the region's rich heritage of marine research and exploration. Beginning with jawless hagfishes and lampreys and ending with the distinctive Ocean Sunfish, leading scientists Theodore Wells Pietsch and James Orr present the taxa in phylogenetic order, based on classifications that reflect the most current scientific knowledge. Illustrated taxonomic keys facilitate fast and accurate species identification. These in-depth, thoroughly documented, and yet accessible volumes will prove invaluable to marine biologists and ecologists, natural resource managers, anglers, divers, students, and all who want to learn about, marvel over, and preserve the vibrant diversity of Salish Sea marine life. Comprehensive accounts of 260 fish species Brilliant color plates of all treated species Illustrated taxonomic keys for easy species identification In-depth history of Salish Sea research and exploration
Download or read book Factors Affecting Bottom Trawl Behavior written by Charles William West and published by . This book was released on 1981 with total page 72 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 2014 with total page 738 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Environmental DNA written by Pierre Taberlet and published by Oxford University Press. This book was released on 2018-02-02 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: Environmental DNA (eDNA) refers to DNA that can be extracted from environmental samples (such as soil, water, feces, or air) without the prior isolation of any target organism. The analysis of environmental DNA has the potential of providing high-throughput information on taxa and functional genes in a given environment, and is easily amenable to the study of both aquatic and terrestrial ecosystems. It can provide an understanding of past or present biological communities as well as their trophic relationships, and can thus offer useful insights into ecosystem functioning. There is now a rapidly-growing interest amongst biologists in applying analysis of environmental DNA to their own research. However, good practices and protocols dealing with environmental DNA are currently widely dispersed across numerous papers, with many of them presenting only preliminary results and using a diversity of methods. In this context, the principal objective of this practical handbook is to provide biologists (both students and researchers) with the scientific background necessary to assist with the understanding and implementation of best practices and analyses based on environmental DNA.
Download or read book Fishermen s Report written by Northeast Fisheries Science Center (U.S.) and published by . This book was released on 2001 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
