Thesis (M.E.S.)--The Evergreen State College, 2008. / Title from title screen (viewed 2/25/2010). Includes bibliographical references (leaves 95-101).

At the beginning of the nineteenth century, new methods of preservation allowed Tay salmon to be sold on the London market for the entire fishing season. Such was the size and buoyancy of this market that it absorbed the entire produce of the Tay fisheries, though catches were at that time increasing due to the introduction of stake nets in the Firth. However, these beneficial developments created tensions among the participants in the fisheries. Stake nets took fish which would have ascended to the river, reducing the catches of river tacksmen and the rentals of river proprietors. An increasing number of tacksmen meant that management of the fisheries ceased, as formerly, to be in the hands of a single company and gave rise to more competitive exploitation of the existing salmon stock. A particular result of these developments was that all participants in the fisheries developed an abiding preoccupation with the threat of over-fishing. This was 'further enhanced by the introduction of stake nets on the coast after they were banned from the estuary, development of a series of stake net substitutes in the estuary, more efficient conventional methods of fishing at more stations, and a revival of poaching from mid-century onwards. The court case which led to stake nets being removed from the estuary formalised the animosity between the various proprietorial groups. Their subsequent adoption of entrenched positions eventually led to the tripartition of the Tay fisheries into estuarial, river and upper river factions. Successive inquiries and two Acts of Parliament failed to reconcile the enmities which were sustained by strongly held beliefs in property rights and the need to defend rental incomes. The impasse was ultimately resolved by a single company which, by doubling rental payments, was able to take all netting stations into its own hands and thus revive unified control of the Tay salmon fisheries.

This thesis explores the role for social work in addressing government policies that threaten the sustainability of small coastal communities. The response of government and industry to the globalization of trade and resource degradation is at odds with the needs of people. Utilizing a case study methodology the development and implementation of the Pacific Salmon Revitalization Plan is explored. This department of fisheries plan to rationalize the fishery was highly contested on the grounds that it took jobs out of small coastal communities. It was accused of benefiting the large fishing corporations and the urban based fishing fleet, which had the capital to profit from the plan. Concentrated opposition from coastal communities, fishers, advocacy groups and academics was unsuccessful in changing the plan. The assumptions of modernism - expert knowledge, scientific rationality and orthodox economics - as well as distorted communications, were postulated to be behind this lack of success. A post modern analysis suggests that a successful challenge to the plan would have incorporated the local knowledge of fishers and coastal communities within a process of fair and equitable public discourse aimed at reaching intersubjectively mediated understanding. For social work this demonstrates the need to work conjointly with communities and affected groups to identify the modernist assumptions on which policy decisions are based and develop locally derived alternatives to these assumptions. And most importantly, that the focus of social change efforts be on demanding a process for discussion and decision-making that ensures that the concerns of effected individuals will be fairly addressed.

Lateral instability exerts considerable influence on the sedimentology, planform, and hydraulic characteristics of gravel-bed rivers. Because Atlantic salmon (Salmo salar) tolerate a narrow range of depths, velocities and substrate sizes, the quality and quantity of habitat available to salmon should vary with level of river instability. In the Riviere Nouvelle, a Gaspe river destabilized by deforestation and past channelization projects, the effect of lateral instability on habitat was variable. Fines content in riffle substrates did not show a significant relationship to local bank erosion rates, even where the rate was as high as 10 myr$ sp{-1}$ and the proportion of fines entering the channel was much higher than that found in riffles substrates (an excess of fines in potential spawning riffles reduces spawning success among salmonids). For juveniles, availability of hydraulically suitable habitat was largest where lateral instability resulted in aggradation of the river bed and development of a braided pattern. Hydraulic habitat availability was lowest where erosion patterns led to high planform curvature levels and to scouring of bed materials. In general, because of the relatively high power of the Riviere Nouvelle, structures or processes leading to diminishment of depths or velocities (e.g. aggradation) resulted in an increase in the amount of juvenile habitat available.

Although the watersheds of the Petite Cascapedia and Bonaventure Rivers, Gaspe Peninsula, have broadly similar geology and land use, their segment-scale river geomorphology is contrasted by subtle differences in valley characteristics that are a legacy of their individual geomorphic histories. These differences have consequences on the distribution of Atlantic salmon habitat such as boulder abundance (for parr rearing and overwintering habitats) and spawning substrate quality. Parr preference for boulder-rich river segments (1--5 km) was observed in the Bonaventure River. In the study systems redd distribution was sensitive to relatively small changes in the fines content of riffle substrate. River segments flowing through moderately narrow semi-alluvial valleys present better overall parr habitat (high boulder abundance) and better spawning substrate quality (percentage of sand) than wider valley sections. These differences are due to additional sources of coarse sediment, higher shear stresses, and lower bank erosion rates in such valleys.

Thesis (M.E.S.)--The Evergreen State College, 2001. / Title from title screen viewed (3/20/2008). Includes bibliographical references (leaves 41-44).

Thesis (doctoral)--Swedish University of Agricultural Sciences, 2007. / Includes an appendix of three papers and manuscripts, one co-authored with Per-Olov Johansson and Bengt Kriström. A second appendix reprints questionnaire used to elicit data for the three papers. Also issued electronically via World Wide Web in PDF format; online version lacks appendix.

Thesis (Ph. D.)--University of Washington, 1998. / Vita. Includes bibliographical references (leaves [157]-174).

Thesis (M.S.)--Oregon State University, 2010. / Printout. Includes bibliographical references (leaves 46-51). Also available on the World Wide Web.

Thesis (M.S.)--Washington State University, 2004. / Title from PDF title page (viewed on May 28, 2005). Includes bibliographical references (p. 149-158).