A Comparison of Estimates of First Nations Catches of Fraser River Sockeye Salmon from 1996 to 1999 by Scale-based Discriminant Function Models and Run Reconstruction Models PDF Download
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Author: Jim H. Gable
Publisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 66
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Book Description
Author: Jim H. Gable
Publisher:
ISBN:
Category : Fishery management
Languages : en
Pages : 66
Get Book Here
Book Description
Author: Jim H. Gable
Publisher:
ISBN:
Category : Fish stock assessment
Languages : en
Pages : 50
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Book Description
In the past, the Pacific Salmon Commission has used run reconstruction models to assign stock of origin to sockeye salmon (Oncorhynchus nerka) catches in the Fraser River First Nations fishery. Sockeye salmon catches from this fishery have also been allocated to stock groups using linear discriminant function analysis of scale parameters. This latter method has been applied to fishery catches from which scale proportions and catches derived using the two techniques.
Author: Jim Gable
Publisher:
ISBN:
Category : Fish stock assessment
Languages : en
Pages : 39
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Book Description
Author:
Publisher:
ISBN:
Category : Pacific salmon fisheries
Languages : en
Pages : 50
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Book Description
Author: Jim H. Gable
Publisher:
ISBN:
Category : Fish stock assessment
Languages : en
Pages : 106
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Book Description
In the past, the Pacific Salmon Commission has used run reconstruction models to assign stock of origin to sockeye salmon (Oncorhynchus nerka) catches in the Fraser River First Nations fishery. Sockeye salmon catches from this fishery have also been allocated to stock groups using linear discriminant function analysis of scale parameters. This latter method has been applied to fishery catches from which scale proportions and catches derived using the two techniques.
Author: Pacific Salmon Commission
Publisher:
ISBN:
Category : Pacific salmon fisheries
Languages : en
Pages : 398
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Book Description
Author: National Research Council
Publisher: National Academies Press
ISBN: 0309125391
Category : Nature
Languages : en
Pages : 611
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Book Description
The rapid conversion of land to urban and suburban areas has profoundly altered how water flows during and following storm events, putting higher volumes of water and more pollutants into the nation's rivers, lakes, and estuaries. These changes have degraded water quality and habitat in virtually every urban stream system. The Clean Water Act regulatory framework for addressing sewage and industrial wastes is not well suited to the more difficult problem of stormwater discharges. This book calls for an entirely new permitting structure that would put authority and accountability for stormwater discharges at the municipal level. A number of additional actions, such as conserving natural areas, reducing hard surface cover (e.g., roads and parking lots), and retrofitting urban areas with features that hold and treat stormwater, are recommended.
Author: Babin, Marcel
Publisher: UNESCO
ISBN: 9231040421
Category : Nature
Languages : en
Pages : 880
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Book Description
The proliferation of harmful phytoplankton in marine ecosystems can cause massive fish kills, contaminate seafood with toxins, impact local and regional economies and dramatically affect ecological balance. Real-time observations are essential for effective short-term operational forecasting, but observation and modelling systems are still being developed. This volume provides guidance for developing real-time and near real-time sensing systems for observing and predicting plankton dynamics, including harmful algal blooms, in coastal waters. The underlying theory is explained and current trends in research and monitoring are discussed.Topics covered include: coastal ecosystems and dynamics of harmful algal blooms; theory and practical applications of in situ and remotely sensed optical detection of microalgal distributions and composition; theory and practical applications of in situ biological and chemical sensors for targeted species and toxin detection; integrated observing systems and platforms for detection; diagnostic and predictive modelling of ecosystems and harmful algal blooms, including data assimilation techniques; observational needs for the public and government; and future directions for research and operations.
Author: William R. Shadish
Publisher: Cengage Learning
ISBN:
Category : Education
Languages : en
Pages : 664
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Book Description
Sections include: experiments and generalised causal inference; statistical conclusion validity and internal validity; construct validity and external validity; quasi-experimental designs that either lack a control group or lack pretest observations on the outcome; quasi-experimental designs that use both control groups and pretests; quasi-experiments: interrupted time-series designs; regresssion discontinuity designs; randomised experiments: rationale, designs, and conditions conducive to doing them; practical problems 1: ethics, participation recruitment and random assignment; practical problems 2: treatment implementation and attrition; generalised causal inference: a grounded theory; generalised causal inference: methods for single studies; generalised causal inference: methods for multiple studies; a critical assessment of our assumptions.
Author: National Research Council Canada
Publisher: NRC Research Press
ISBN: 9780660149547
Category : Technology & Engineering
Languages : en
Pages : 276
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Book Description
Up-to-date information, knowledge and research in progress in scientific fields related to natural production of juvenile Atlantic salmon and some other ecologically similar fluvial salmonids is contained in the 25 papers and 12 abstracts contained in this publication, which were prepared for an international symposium held in St. John's, Newfoundland. Studies relate to stream ecology, invertebrates and predators, habitat improvement, competitive effects, behaviour and dispersal, habitat and production of juvenile salmon, population dynamics and relationships of juvenile salmon estimates to smolt yields. A list of participants at the conference is also provided.
