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Working Paper Fishful Thinking: Rhetoric, Reality, and the Sea Before Us (2010) Pitcher, Tony J.; Lam, Mimi E."Fisheries science and management have been shrouded in controversy and rhetoric for over 125 yrs. Human reliance on fish through history (and even prehistory) has impacted the sea and its resources. Global impacts are manifest today in threatened food security and vulnerable marine ecosystems. Growing consumer demand and subsidized industrial fisheries exacerbate ecosystem degradation, climate change, global inequities, and local poverty. Ten commonly advocated fisheries management solutions, if implemented alone, cannot remedy a history of intense fishing and serial stock depletions. Fisheries policy strategies evaluated along five performance modalities (ecological, economic, social, ethical, and institutional) suggest that composite management strategies, such as ecosystem-based management and historically based restoration, can do better. A scientifically motivated solution to the fisheries problem can be found in the restorable elements of past ecosystems, if some of our present ideology, practices, and tastes can be relinquished for this historical imperative. Food and social security can be enhanced using a composite strategy that targets traditional food sources and implements customary management practices. Without binding laws, however, instituting such an ethically motivated goal for fisheries policy can easily be compromised by global market pressures. In a restored and productive ecosystem, fishing is clearly the privilege of a few. The realities of imminent global food insecurity, however, may dictate a strategy to deliberately fish down the food web, if the basic human right to food is to be preserved for all."Working Paper Merits and Limits of Ecosystem Protection for Conserving Wild Salmon in a Northern Coastal British Columbia River(2010) Hill, Aaron C.; Bansak, Thomas S.; Ellis, Bonnie K.; Stanford, Jack A."Loss and degradation of freshwater habitat reduces the ability of wild salmon populations to endure other anthropogenic stressors such as climate change, harvest, and interactions with artificially propagated fishes. Preservation of pristine salmon rivers has thus been advocated as a cost-effective way of sustaining wild Pacific salmon populations. We examine the value of freshwater habitat protection in conserving salmon and fostering resilience in the Kitlope watershed in northern coastal British Columbia—a large (3186 km2) and undeveloped temperate rainforest ecosystem with legislated protected status. In comparison with other pristine Pacific Rim salmon rivers we studied, the Kitlope is characterized by abundant and complex habitats for salmon that should contribute to high resilience. However, biological productivity in this system is constrained by naturally cold, light limited, ultra-oligotrophic growing conditions; and the mean (± SD) density of river-rearing salmonids is currently low (0.32 ± 0.27 fish per square meter; n = 36) compared to our other four study rivers (grand mean = 2.55 ± 2.98 fish per square meter; n = 224). Existing data and traditional ecological knowledge suggest that current returns of adult salmon to the Kitlope, particularly sockeye, are declining or depressed relative to historic levels. This poor stock status—presumably owing to unfavorable conditions in the marine environment and ongoing harvest in coastal mixed-stock fisheries—reduces the salmon-mediated transfer of marine-derived nutrients and energy to the system’s nutrient-poor aquatic and terrestrial food webs. In fact, Kitlope Lake sediments and riparian tree leaves had marine nitrogen signatures (δ15N) among the lowest recorded in a salmon ecosystem. The protection of the Kitlope watershed is undoubtedly a conservation success story. However, 'salmon strongholds' of pristine watersheds may not adequately sustain salmon populations and foster social and ecological resilience without more holistic and risk-averse management that accounts for uncertainty and interactions between ecosystem fertility, harvest, climate dynamics, and food web dynamics in the marine and freshwater environments encompassed by the life cycle of the fish."