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Author: Pacific Fisheries Resource Conservation Council
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 164
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Book Description
A key component of the Wild Pacific Salmon Policy is the conservation & stewardship of habitat for wild Pacific salmon. To focus & support habitat conservation & stewardship efforts, a suite of indicators at a range of scales is needed. This report represents a consolidation of a background information review & workshop project conducted to provide an overview of the state of habitat indicator development for wild Pacific salmon and to propose candidate indicators. After an introduction on the Wild Pacific Salmon Policy and the project study approach, chapter 2 presents an overview of Pacific salmon life history stages, habitat utilization, and relationships between salmon production & habitat characteristics. Chapter 3 summarizes previous activities related to development of salmon habitat indicators and frameworks for indicator selection. Chapter 4 contains a table of candidate indicators of habitat status. Chapter 5 lists data sources in British Columbia to support the candidate indicators. Chapter 6 briefly discusses several watershed-based programs related to wild Pacific salmon habitat & indicators. Chapter 7 is a summary of the salmon habitat indicator workshop findings; the full workshop report is appended. The final chapter makes recommendations for identifying a suite of habitat indicators with a view to optimizing the potential for successful implementation. Other appendices include a detailed preliminary analysis of the candidate indicators.
Author: Pacific Fisheries Resource Conservation Council
Publisher:
ISBN:
Category : Fish culture
Languages : en
Pages : 164
Get Book Here
Book Description
A key component of the Wild Pacific Salmon Policy is the conservation & stewardship of habitat for wild Pacific salmon. To focus & support habitat conservation & stewardship efforts, a suite of indicators at a range of scales is needed. This report represents a consolidation of a background information review & workshop project conducted to provide an overview of the state of habitat indicator development for wild Pacific salmon and to propose candidate indicators. After an introduction on the Wild Pacific Salmon Policy and the project study approach, chapter 2 presents an overview of Pacific salmon life history stages, habitat utilization, and relationships between salmon production & habitat characteristics. Chapter 3 summarizes previous activities related to development of salmon habitat indicators and frameworks for indicator selection. Chapter 4 contains a table of candidate indicators of habitat status. Chapter 5 lists data sources in British Columbia to support the candidate indicators. Chapter 6 briefly discusses several watershed-based programs related to wild Pacific salmon habitat & indicators. Chapter 7 is a summary of the salmon habitat indicator workshop findings; the full workshop report is appended. The final chapter makes recommendations for identifying a suite of habitat indicators with a view to optimizing the potential for successful implementation. Other appendices include a detailed preliminary analysis of the candidate indicators.
Author: ESSA Technologies Ltd
Publisher:
ISBN: 9781897110270
Category : Ecosystem management
Languages : en
Pages : 97
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Book Description
Canada's Wild Salmon Policy (WSP) was released in June 2005 with a goal to restore and maintain healthy and diverse salmon populations and their habitats. Strategy 3, Action Step 3.1 aims to include ecosystem values in decision-making by proposing "ecosystem indicators" to monitor the status of freshwater and terrestrial ecosystems. The scientific basis for proposing ecosystem indicators within the WSP recognizes that Pacific salmon play an important role in marine, freshwater, and terrestrial ecosystems, including streams, lakes, riparian forest and wildlife food webs. Managers influence these ecosystems by considering changes in fisheries regulations (i.e., harvest levels) and artifical enhancement (e.g., hatcheries). This work serves three functions: (1) provide a first attempt at developing ecosystem indicators for Strategy 3 of the Wild Salmon Policy; (2) recommend further development and refinement of ecosystem indicators; and (3) suggest next steps.
Author:
Publisher:
ISBN:
Category : Pacific salmon
Languages : en
Pages : 97
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Book Description
Canada's Wild Salmon Policy (WSP) was released in June 2005 with a goal to restore and maintain healthy and diverse salmon populations and their habitats. Strategy 3, Action Step 3.1 aims to include ecosystem values in decision-making by proposing "ecosystem indicators" to monitor the status of freshwater and terrestrial ecosystems. The scientific basis for proposing ecosystem indicators within the WSP recognizes that Pacific salmon play an important role in marine, freshwater, and terrestrial ecosystems, including streams, lakes, riparian forests and wildlife food webs. Managers influence these ecosystems by considering changes in fisheries regulations (i.e., harvest levels) and artificial enhancement (e.g., hatcheries). Thus, the role of ecosystem indicators is to provide a measure of ecosystem responses to changes in spawner abundance, thereby helping managers understand how changes in their actions affect freshwater and terrestrial ecosystems. This work serves three functions: (1) provide a first attempt at developing ecosystem indicators for Strategy 3 of the Wild Salmon Policy; (2) recommend further development and refinement of ecosystem indicators; and (3) suggest next steps. To serve these functions, we reviewed the literature to develop a better understanding of the linkages among the five Pacific salmon species and freshwater / terrestrial ecosystems, and used our resulting summary on the "state of the science" to provide a scientific rationale for recommending ecosystem indicators and next steps.
Author: Deanna J. Stouder
Publisher: Springer Science & Business Media
ISBN: 1461563755
Category : Science
Languages : en
Pages : 681
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Book Description
The symposium "Pacific Salmon and Their Ecosystems: Status and Future Options',' and this book resulted from initial efforts in 1992 by Robert J. Naiman and Deanna J. Stouder to examine the problem of declining Pacific salmon (Oncorhynchus spp.). Our primary goal was to determine informational gaps. As we explored different scientific sources, state, provincial, and federal agencies, as well as non-profit and fishing organizations, we found that the information existed but was not being communicated across institutional and organizational boundaries. At this juncture, we decided to create a steering committee and plan a symposium to bring together researchers, managers, and resource users. The steering committee consisted of members from state and federal agencies, non-profit organizations, and private industry (see Acknowledgments for names and affiliations). In February 1993, we met at the University of Washington in Seattle to begin planning the symposium. The steering committee spent the next four months developing the conceptual framework for the symposium and the subsequent book. Our objectives were to accomplish the following: (1) assess changes in anadromous Pacific Northwest salmonid populations, (2) examine factors responsible for those changes, and (3) identify options available to society to restore Pacific salmon in the Northwest. The symposium on Pacific Salmon was held in Seattle, Washington, January 10-12, 1994. Four hundred and thirty-five people listened to oral presentations and examined more than forty posters over two and a half days. We made a deliberate attempt to draw in speakers and attendees from outside the Pacific Northwest.
Author: Elysia Brunet
Publisher:
ISBN:
Category : Indicators (Biology)
Languages : en
Pages : 168
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Book Description
Assessments of the conservation status of species depend on using multiple indicators, and most methods for combining indicators either assume that all indicators are equally important or they use some other pre-determined weighting. This article discusses the case of Canada's Wild Salmon Policy, which requires that the biological status of Conservation Units (CUs) of Pacific salmon (Oncorhychus spp.) be assessed by combining the status of several indicators or metrics. We developed a questionnaire for experts based on stated preference methods and found that the status of spawner abundance and trend in spawners metrics had the highest relative importance in assessment of CU status, especially for cases with high data quality and amount (DQA). Without information on metric status, DQA had little influence on CU status ratings. Our study presents a novel method for combining indicators to assess conservation status, and in future could be applied to other species and contexts.
Author: H. C. Stalberg
Publisher:
ISBN:
Category : Fishes
Languages : en
Pages : 135
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Book Description
Author: Robert T. Lackey
Publisher:
ISBN:
Category : Nature
Languages : en
Pages : 662
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Book Description
Author: William Jess Ward
Publisher:
ISBN:
Category : Environmental indicators
Languages : en
Pages : 41
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Book Description
Author: Pacific Fisheries Resource Conservation Council
Publisher:
ISBN: 9781897110317
Category : Pacific salmon fisheries
Languages : en
Pages : 34
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Book Description
Author: Jocelyn Lin
Publisher:
ISBN:
Category : Fish populations
Languages : en
Pages : 245
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Book Description
There is increasing scientific interest in empirically linking evolution to ecology, particularly in wild populations. Although evolutionary change is often thought to proceed slowly, the microevolutionary forces of selection, gene flow, genetic drift and inbreeding can have pronounced effects on genetic variation even on short time scales. These genetic changes may then influence local adaptation and demography. The overarching aim of this dissertation was to estimate levels of gene flow and selection in wild populations, and to assess how microevolutionary change might affect local adaptation and population dynamics within these populations. Pacific salmon (Oncorhynchus spp.) are an ideal model organism for studying natural patterns of microevolution and local adaptation. First there is high phenotypic variation within the species, and spawning fish can be sampled comprehensively by capturing adults when they return to freshwater from the ocean. Second, salmon form reproductively isolated spawning populations due to natal homing, but these populations can be genetically and demographically connected via straying. Third, salmon are of ecological and commercial interest, making our findings relevant to population management. This dissertation investigated ecology and evolution in salmon as follows. In Chapter 1, we examined patterns of genetic and phenotypic differentiation between adjacent populations of beach and stream spawning ecotypes of sockeye salmon, and assessed potential levels of gene flow between ecotypes. The objective of Chapter 2 was to determine whether small populations of Chinook and chum salmon occurring in the Wood River system are reproductively isolated, self-sustaining populations, population sinks that produce returning adults but receive immigration, or strays from other systems that do not produce returning adults. In Chapter 3 we re-constructed pedigrees for two wild populations of sockeye salmon to estimate natural selection and heritability for several phenotypic traits. For Chapter 4, we used empirical results from the first three chapters to develop a stochastic, individual-based model that we used to study effects of gene flow and selection on local adaptation and population dynamics in interconnected salmon populations. Taken together, these studies showed how gene flow and selection affect local adaptation and demography in wild salmon populations.
