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These documents summarize some of the recent studies of the relationships among climate, the aquatic environment, and the dynamics of fish populations. The studies are mostly from the North Pacific ocean, but there are reports of investigations from the North Atlatic Ocean and from fresh water. Various papers include numerous examples of the relationships between fish abundance trends and the environment.
Emphasis is placed on characteristics of salmon from the Northwest Miramichi in support of a review of the risks to long-term fitness of wild Atlantic salmon of a proposed supplementation program consisting of the captive-rearing in freshwater of wild salmon smolts to the adult stage and release back to the river to spawn. [...] Freshwater dynamics of Atlantic salmon are examined to assist in the evaluation of the risks and /or benefits of the proposed supplementation activity in achieving one of the stated goals which is to increase abundance of adult Atlantic salmon to the river. [...] Emphasis is placed on characteristics of salmon from the Northwest Miramichi in support of a review of the risks to long-term fitness of wild Atlantic salmon of a proposed supplementation program consisting of the captive-rearing in freshwater of wild salmon smolts to the adult stage and release back to the river to spawn (DFO 2016). [...] The two main branches of the Miramichi River are each comprised of two main rivers which join near the head of tide; the Renous and Southwest Miramichi rivers join at the head of tide in the Southwest Branch of the Miramichi, the Little Southwest and Northwest Miramichi rivers join at the head of tide in the Northwest branch of the Miramichi (Fig. [...] There was no statistically significant association between the proportion of the early tagged salmon which ascended to the facilities prior to September 1 and neither the elevation nor the distance of the facility from the head of tide (Fig.
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.
This volume is a compilation of current research papers on the aquatic ecosystem of the Miramichi River in New Brunswick. The papers are organized in four sections: historical overview, the physical environment, the biological environment, and evaluating human impacts. Specific topics of the papers include the estuarine structure of the river, hydrology of the drainage basin, plankton, diadromous fish, estuary sediments, forestry impacts, and biological indicators. The volume also includes a summary and selected abstracts from the Miramichi Environmental Science Workshop held in Newcastle in 1994.
This book collects the available knowledge about the ecology of Atlantic salmon and contemporary stock assessment methods supporting the specific task of establishing reference points. Bayesian approaches for incorporating uncertainty are front and centre in the book. Stock and recruitment analysis methods, transport of reference points, risk analysis and use of index measures of abundance are presented in a format which can be readily understood and applied by scientists, educators, professionals and undergraduate students.