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Your search for Fresh water returned 65 records. Showing Records 26 to 55. Please Select a Record to View.

 

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Title: An Experimental Study of Competition for Food Between Sockeye Salmon (Oncorhynchus nerka) and the Threespine Sticklebacks (Gasterosteus aculeatus) in British Columbia Coastal Lake

Year: 1996

Author(s): S. M. O'Neill; K. D. Hyatt

Type: Report (published)

Description:
Evidence supporting the hypothesis that competitive interactions occur between juvenile sockeye salmon and limnetic sticklebacks in oligotrophic lakes was obtained by manipulating abundance, size, and species combinations of fish in enclosures in the limnetic zone of Kennedy Lake, British Columbia. We conclude that in many oligotrophic coastal lakes, where food supplies are limited, sockeye and sticklebacks compete by exploiting the zooplankton communities to their mutual disadvantage.

 

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Title: British Columbia: A Natural History

Year: 1996

Author(s): Richard Cannings; Sydney Cannings

Type: Book

Description:
none

 

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Title: Workshop Report of the Kennedy Lake Salmonid Technical Working Group, September 13, 1994, Tofino

Year: 1994

Author(s): I. Parnell; D.R. Marmorek

Type: Report (published)

Description:
From page 2:"In early 1992, the Tla-o-qui-aht First nation and Ecotrust formed the Kennedy Lake Technical Working group(KLTWG). The long term goal of the working group is to rebuild Kennedy Lake sockeye stocks to levels that can again sustain a healthy fishery for Native fishers and other fishing interests.

 

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Title: Condition Assessment of the Kennedy-Muriel Waterdhed

Year: 1994

Author(s): Kennedy lake Resoration Group; Mark Johannes

Type: Report (unpublished)

Description:
From the introduction:"This submission from Kennedy Restoration Group to the Watershed Restoration Program is for stream based condition assessments of the Kennedy-Muriel watersheds, located within Clayoquot Sound on the West Coast of Vancouver Island."

 

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Title: Clayoquot Lake Natural History Notes

Year: 1994

Author(s): Clayoquot Biosphere Project; Tom Stere; Garth Lenz; Ursula Kunz

Type: Map

Description:
Maps with hand-written notes on natural history observations.

 

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Title: Juvenile Sockeye and Lake Survey Status Report to the Tla-o-qui-aht/DFO Fisheries Working Group

Year: 1994

Author(s): Kim D. Hyatt; D. Paul Rankin; Mark R. S. Johannes; Scott P. Murdoch

Type: Report (unpublished)

Description:
none

 

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Title: Catalogue of Major Salmon-Producing Rivers of Clayoquot Sound, 1953-1994

Year: 1994

Author(s): Dept. of Fisheries and Oceans

Type: Report (unpublished)

Description:
none

 

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Title: Aerial Reconnaissance of a Very Large Fresh-Water Stone Alignment

Year: 1994

Author(s): Barry Campbell

Type: Journal Article

Description:
None

 

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Title: The Odonoata of the Clayoquot River System, Vancouver Island, British Columbia

Year: 1994

Author(s): Janna Smit; Volker Homes

Type: Report (unpublished)

Description:
This is a study on mayflies and dragonflies at Clayoquot Lake and the Clayoquot River System on the west coast of Vancouver Island. The Odonata on the outer west coast of British Columbia is little known. Especially for the middle and north part of Vancouver Island there are few records dealing with this order of insects. The data were collected from August 2 to August 23, 1994 in the Clayoquot Sound area, reachable only by floatplane. Adult mayflies and dragonflies and their exuviae were collected in different habitats and identified and ecological observations on these species were added. This study is a part of a long-term ecosystem research program in the Clayoquot Valley founded by the Clayoquot Biosphere Project.

 

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Title: Stream Analysis and Fish Habitat Design: A Field Manual

Year: 1993

Author(s): Robert Newbury; Marc N. Gaboury

Type: Book

Description:
A manual for stream habitat projects, stream analysis and design procedures.

 

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Title: A Reconnaissance Survey of Clayoquot Lake

Year: 1993

Type: Report (unpublished)

Description:
None

 

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Title: Stream Analysis and Fish Habitat Design

Year: 1993

Author(s): Robert W. Newbury; Marc N. Gaboury

Type: Book

Description:
Planning stream habitat projects. Field exploration. The evaluation of stream behaviour and characteristics. Design and construction of stream habitat works.

 

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Title: Clayoquot Lake Natural History Observations

Year: 1993

Author(s): Clayoquot Biosphere Project; Jim Darling; Tom Stere; Josie Cleland; J Bonnell; A Dhanwant; Adrian Dorst; David Bout; Claudette Poirier; Tammy Steeves

Type: Map

Description:
Collection of naturalist notes from observations at Clayoquot Lake.

 

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Title: Clayoquot Lake and Upper Clayoquot River Spawner Enumeration 24-27 November, 1993

Year: 1993

Author(s): Mike Morrell

Type: Report (unpublished)

Description:
None

 

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Title: Breeding Success of Hatchery and Wild Coho Salmon (Oncorhynchus Kisutch) in Competition

Year: 1993

Author(s): Ian A. Fleming; Mart R. Gorss; Mart R. Gross

Type: Journal Article

Description:
The divergence of hatchery fish in traits important for reproductive success has raised concerns about their ability to rehabilitate wild populations, and the threat that their inevitable straying poses to biological diversity through introgression. We therefore undertook a study of the breeding competition and success of sea-ranched hatchery fish placed in direct competition with wild fish. Experiments using wild and hatchery coho salmon (Oncorhynchus Kisutch) were conducted within a controlled stream channel, allowing selective manipulation of breeding competition and density. Hatchery fish, particularly males, were competitively inferior to wild fish, being less aggressive and more submissive. These results imply that hatchery fish have restricted abilities to rehabilitate wild populations, and may pose ecological and genetic threats to the conservation of wild populations.

 

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Title: Clayoquot Sound: An Introduction to Natural History Observations

Year: 1993

Author(s): Jennifer Bonnell; Ashley Dhanwant

Type: Student Paper

Description:
This study was undertaken to explore the methods and principles of natural history observation. Surveys were conducted of lake and river wildlife and conditions, and of inland plant diversity and distribution. Goldeneyes and mergansers were the most frequently observed bird species on the lake, while Western hemlock and red huckleberry dominated the inland vegetative ecosystem. The activity of several mammals was also observed and discussed in context to their habitat requirements. The sensitivity of the area in early Spring should be considered when scheduling human activity time frames in wilderness regions.

 

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Title: Clayoquot Lake Natural History Observations

Year: 1992

Author(s): Clayoquot Biosphere Project; Mark Hobson

Type: Map

Description:
Maps with hand-written natural history observations.

 

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Title: Hesquiat Harbour Study: a step towards controlling resources

Year: 1992

Author(s): Cori Howard

Type: Newspaper

Description:
none

 

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Title: Management for a Living Hesquiat Harbour

Year: 1992

Author(s): Jim Darling, Tonquin Research Inc.

Type: Proceedings

Description:
Introduction: This was the first of two workshops to develop protection, management, restoration and research programs for the Hesquiat Harbour region. The overall objective of the project is, "To protect and restore the living resources and ecosystems of Hesquiat territory to allow sustainable levels of harvest in the future." The main purpose of this workshop was to share information regarding the status and biology of natural resources and habitat in Hesquiat territory. It is intended to set the stage for a second workshop when a long term research program for Hesquiat territory will be developed. This workshop also focused on the development of studies which may be undertaken in the interim, before the long term program is developed, and on interim protection measures for Hesquiat territory to ensure that the overall objective of the program can be achieved.

 

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Title: The Megin River Watershed

Year: 1992

Author(s): Trudy Chatwin

Type: Journal Article

Description:
none

 

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Title: The Clayoquot Biosphere Project: Natural History Study

Year: 1992

Author(s): Clayoquot Biosphere Project

Type: Other

Description:
The natural history program of the Clayoquot Biosphere Project is based on the nearly lost art of natural history observation. The key ingredients are enthusiastic observers, extensive time in the field, and rigorous observations of nature. This study, combined with related education programs, will help re-develop an awareness and understanding of the day-to-day natural events occurring around us in Clayoquot Sound. This work will also provide the necessary foundation for vital ecological and behavioural studies in the intact temperate rainforest ecosystem.

 

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Title: Zooplankton on the west coast of Vancouver Island: distribution and availability to marine birds

Year: 1991

Author(s): David Mackas, Canadian Wildlife Service; Moira Galbraith, Canadian Wildlife Service

Type: Proceedings

Description:
Abstract: The outer coast of Vancouver Island is biologically highly productive because of large summer inputs of upwelled nutrients and resulting dense phytoplankton blooms. The resident zooplankton populations are well fed from spring through autumn; their seasonal cycle and spatial distribution are set largely by advective patterns and bathymetry. pp15-21.

 

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Title: Monitoring Guidelines to Evaluate Effects of Forestry Activities on Streams in the Pacific Northwest and Alaska

Year: 1991

Author(s): Lee H. MacDonald; Alan W. Smart; Robert C. Wissmar

Type: Report (published)

Description:
"This document provides guidance for designing water quality monitoring projects and selecting monitoring parameters. Although the focus is on forest management and streams in the Pacific Northwest and Alaska, a broader perspective is taken, and much of the information is more widely applicable..."

 

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Title: Latitudinal Clines: A trade-off between egg number and size in pacific salmon

Year: 1990

Author(s): Ian A. Fleming; Mart R. Gross

Type: Journal Article

Description:
The latitudinal variation in clutch size found in many animal species, including Pacific salmon, has been an enigmatic problem in ecology. We analyze egg number and egg size of 17 populations of coho salmon (Oncorhynchus Kisutch)distributed over a latitudinal gradient in North America. These populations have a significant latitudinal increase in their egg number. But this increase is accompanied by a significant latitudinal decrease in their egg size. The total biomass of eggs produced also declines with latitude.

 

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Title: Natural Selection Resulting from Female Breeding Competition in a Pacific Salmon (coho: Oncorhynchus Kisutch)

Year: 1989

Author(s): Eric P. van der Berghe; Mart R. Gross

Type: Journal Article

Description:
We studied breeding competition among wild female coho salmon (Oncorhynchus Kisutch) and quantified natural selection acting on two important female characters: body size and kype size (a secondary sexual character used for fighting). The strong natural selection that we have found for female competitive ability is presumably the basis for the evolution of female parental care in salmonids.