Download or read book Monitoring Atlantic Salmon Salmo Salar Populations Using Imaging Sonar Technology in the Miramichi River written by Jani Helminen and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Atlantic salmon (Salmo salar) is an important species culturally and socially, and a target species of multiple fisheries globally. Primarily due to overfishing, water pollution, sedimentation, and damming, Atlantic salmon catches at sea are under a continuing decline; however, the state of different populations varies greatly, and it is important that each population is assessed accurately and independently. In this PhD research, non-invasive imaging SONAR technology was tested for collecting tributary-specific information about migrating fish in the Miramichi River, where the adult Atlantic salmon population is currently monitored using a traditional mark-recapture method. The accuracy and precision of the length measurements using long-range (up to 30m) imaging sonar data was tested and deemed low; however, a Bayesian model was created with capacity to predict the size class of adult Atlantic salmon from the sonar measurements. For efficient analysis of the sonar data, an automated data processing workflow was created. The automation counted the number of migrating fish similarly as different human-generated counts (with mean of differences between -39 % and 65 %). The tail-beat frequencies of three-fish species (Atlantic salmon, striped bass (Morone saxatilis), and American shad (Alosa sapidissima)) were calculated from the sonar data and found significantly (p

Download or read book Freshwater Migration and Behaviour of Wild Adult Atlantic Salmon Salmo Salar in the Miramichi River New Brunswick Canada written by Ryan M. Carrow and published by . This book was released on 2021 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, the Miramichi River, New Brunswick, Canada, had the largest population of Atlantic Salmon (Salmo salar) in North America but has now failed to consistently meet conservation targets set by Fisheries and Oceans Canada for over two decades. Miramichi River salmon return as mature adults to their natal river in either an early (June/early July) or late (September/October) run group, where they enter the river and migrate upstream to spawning areas. The specific, in-river migratory behaviour of the two temporally distinct runs and the habitats utilized during migration are poorly understood in the Miramichi River. In this thesis, radio telemetry was used to monitor adult migration behaviour and habitat selection for early and late run salmon in the Miramichi River. On average, early run salmon migrated 1.5 river km per day (rkm/d), and selected deep habitat (>0.5 m) with large substrate sizes. Salmon started to use thermal refugia when river temperatures reached 19 °C, and increasingly at temperatures > 22 °C. In autumn, river conditions appeared to delay late run salmon from entering freshwater for weeks. Late run salmon migrated between 1.0 – 2.4 rkm/d on average, selected deep habitat types (>0.5 m) with cobble substrate, spawned between mid-October to late November, and began migrating downstream after spawning. Fisheries managers can use this information for better conservation, restoration and rehabilitation of Miramichi Atlantic Salmon population and their critical habitat.

Download or read book Biological Characteristics and Population Dynamics of Atlantic Salmon Salmo Salar from the Miramichi River New Brunswick Canada written by Gérald J. Chaput and published by . This book was released on 2016 with total page 53 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stock Status of Atlantic Salmon salmo Salar in the Miramichi River 2000 written by G. Chaput and published by . This book was released on 2001 with total page 88 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Fish Monitoring in River Philip Nova Scotia During Spring 2011 with a Focus on the Atlantic Salmon Salmo Salar Smolt Migration written by C Breau and published by . This book was released on 2012 with total page 25 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stock Status of Atlantic Salmon Salmo Salar in the Miramichi River 1995 written by G. Chaput and published by . This book was released on 1996 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Atlantic Salmon Salmo Salar Parasites as Biological Tags in the Miramichi River System New Brunswick written by Gerard Murdock Hare and published by . This book was released on 1974 with total page 219 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Migrations and Biological Characteristics of Atlantic Salmon Salmo Salar Smolts from the Northwest Miramichi River 1998 to 2000 written by Gérald J. Chaput and published by Moncton, N.B. : Fisheries and Oceans Canada. This book was released on 2002 with total page 66 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Summary and Evaluation of Atlantic Salmon Salmo Salar Smolt Monitoring and Rotary Screw Fish Trap Activities in the Big Salmon River 2001 2005 written by J. Jason Flanagan and published by . This book was released on 2006 with total page 13 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Installation and Use of a Sonar ARIS Explorer 1800 in the Kedgwick River During the 2019 Summer written by Abby Daigle and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: "In 2019, a sonar was installed in the Kedgwick River (Restigouche watershed) to evaluate the feasibility of using such technology to provide a count of adult Atlantic salmon (Salmo salar) swimming through the sonar field of view. This report summarises the methodology used, the challenges encountered, and the data collected during this experiment. To use this technology in a monitoring program, this exercise illustrates the need for i) a suitable location for the installation of a sonar, mainly access to direct power and a riverbed profile favouring straight swimming behaviour and ii) the need for a dedicated person for maintaining the sonar during its operation and the processing of sonar data"--Abstract, page vii.

Download or read book Stock Status of Atlantic Salmon Salmo Salar in the Miramichi River 1997 written by Gerald J. Chaput and published by . This book was released on 1998 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Stock Status of Atlantic Salmon Salmo Salar in the Miramichi River 1994 written by G. Chaput and published by . This book was released on 1995 with total page 77 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Mechanisms of Migration in Fishes written by James D. McCleave and published by Springer Science & Business Media. This book was released on 2013-03-13 with total page 567 pages. Available in PDF, EPUB and Kindle. Book excerpt: The last major synthesis of our knowledge of fish migration and the underlying transport and guidance phenomena, both physical and biological, was "Fish Migration" published 16 years ago by F.R. Harden Jones (1968). That synthesis was based largely upon what could be gleaned by classical fishery-biology techni.ques, such as tagging and recapture studies, commercial fishing statistics, and netting and trapping studies. Despite the fact that Harden Jones also provided, with a good deal of thought and speculation, a theoretical basis for studying the various aspects of fish migration and migratory orientation, progress in this field has been, with a few excepti.ons, piecemeal and more disjointed than might have been expected. Thus we welcomed the approach from the NATO Marine Sciences Programme Panel and the encouragement from F.R. Harden Jones to develop a proprosal for, and ultimately to organize, a NATO Advanced Research Institute (ARI) on mechanisms of fish migration. Substantial progress had been made with descriptive, analytical and predictive approaches to fish migration since the appearance of "Fish ~ligration." Both because of the progress and the often conflicting results of research, we felt that the time was again right and the effort justified to synthesize and to critically assess our knowledge. Our ultimate aim was to identify the gains and shortcomings and to develop testable hypotheses for the next decade or two.

Download or read book The Forgotten Salmon of the Merrimack written by Lawrence Stolte and published by . This book was released on 1981 with total page 266 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book A Century of Maritime Science written by Jennifer Hubbard and published by University of Toronto Press. This book was released on 2016-01-01 with total page 486 pages. Available in PDF, EPUB and Kindle. Book excerpt: A Century of Maritime Science reviews the fisheries, environmental, oceanographic, and aquaculture research conducted over the last hundred years at St. Andrews from the perspective of the participating scientists.

Download or read book Temperature Adaptation in a Changing Climate written by Kenneth B. Storey and published by CABI. This book was released on 2012 with total page 247 pages. Available in PDF, EPUB and Kindle. Book excerpt: Cold adaptation is a much neglected field in the minds of climate change researchers and policy makers. However, increasing fluctuations in temperature means that the risk of cold stress will pose an increasing threat to both wild and cultivated plants and animals, with frost injury expected to cause devastating damage to crops on an increasingly large scale. Conversely, species already adapted to cold seasonality are declining in numbers and threatening both wildlife and human food sources. Thus, improving shared knowledge of the biological mechanisms of cold adaptation in plants and animals will help prevent major losses of crops and genetic resources in the future. This book is the first to focus on the mechanistic similarities between species in their responses to cold in a multi-organism approach that addresses the challenges and impacts of climate change on cold adaptation in micro-organisms (including pathogens), invertebrates, economically and scientifically important plants and vertebrates in both terrestrial and marine environments. The book concludes with a focus on the interactions between organisms, exploring common mechanisms in cold adaptation and dormancy.

Download or read book The Hudson River Estuary written by Jeffrey S. Levinton and published by Cambridge University Press. This book was released on 2006-01-09 with total page 514 pages. Available in PDF, EPUB and Kindle. Book excerpt: The Hudson River Estuary, first published in 2006, is a scientific biography with relevance to similar natural systems.