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While on vacation in 1980, biologist Barbara Brennessel and her family came across an amazing sight: hundreds of small silver fish migrating from the Atlantic Ocean, across a channel connecting two ponds in the town of Wellfleet on Cape Cod. She later learned that these tiny river herring were important for the ecology and economy of the region and that volunteers were counting fewer and fewer fish migrating each year. The Alewives' Tale describes the plight of alewives and blueback herring, two fish species that have similar life histories and are difficult to distinguish by sight. Collectively referred to as river herring, they have been economically important since colonial times as food, fertilizer, and bait. In recent years they have attracted much attention from environmentalists, especially as attempts are being made, on and beyond Cape Cod, to restore the rivers, streams, ponds, lakes, and estuaries that are crucial for their reproduction and survival. Brennessel provides an overview of the biology of the fish -- from fertilized eggs to large schools of adults that migrate in the Atlantic Ocean -- while describing the habitats at different stages of their life history. She explores the causes of the dramatic decline of river herring since the mid-twentieth century and the various efforts to restore these iconic fish to the historic populations that treated many onlookers to spectacular inland migrations each spring.
The importance of free longitudinal passage of river fauna is stressed.
The Atlantic salmon (Salmo salar) has occupied a salient position in the history of eastern North America for at least the past 1000 years. Initially the species occupied a prominant niche in the prolific web of life that existed throughout its former occurrence area; millions of pounds of salmon were produced annually from the freshwater streams between New York and Ungava - a resource that was a principal food source for the Amerindian cultures which shared its range. In a chronological and cumulative way, the salmon became an increasingly important factor in both the domestic and commercial life of the developing colonies; it provided a recreational outlet for the sportsman, and evolved as a principal object of intellectual and scientific investigation. The documented specifics of the salmon's history, however, are largely comprised of repetitive instances of overexploitation, careless destruction of stocks and their environment, and ineffectual conservation actions. Despite the species' former importance, its more recent history is one of declining presence, and its destiny appears to be extinction. By documenting this story of discovery, exploitation, and decline, the urgent need for the employment of sound resource management practices to preserve the salmon is emphasized. Appendix A: Historical methods of packing salmon.
Our Landscape Heritage provides an overview of the history and ecological makeup of the landscapes of New Brunswick to help ecological seekers starting out with basic knowledge about geology, soils, climate, and vegetation, to better understand why plants and animals are today distributed as they are. Part I outlines the rationale and history of ecological land classification (ELC) in New Brunswick, and presents basic scientific concepts and facts that help the reader to interpret the information that follows. Part II, Portrait of New Brunswick Ecoregions and Ecodistricts presents a detailed look at the variety and distribution of ecosystems across the geographic expanse of New Brunswick. Each of the seven chapters of Part II provides a high level description of the ecoregion, followed by detailed descriptions of each ecodistrict within the ecoregion.--Includes text from document.