This book introduces updated information on conservation issues, providing an overview of what is needed to advance the global conservation of freshwater decapods such as freshwater crabs, crayfish, and shrimps. Biodiversity loss in general is highest in organisms that depend on intact freshwater habitats, because freshwater ecosystems worldwide are suffering intense threats from multiple sources. Our understanding of the number and location of threatened species of decapods, and of the nature of their extinction threats has improved greatly in recent years, and has enabled the development of species conservation strategies. This volume focuses on saving threatened species from extinction, and emphasizes the importance of the successful implementation of conservation action plans through cooperation between scientists, conservationists, educators, funding agencies, policy makers, and conservation agencies.

Stunning handmade knives in full-on color! Showcasing fine artistry isn't a difficult job. Unlike museum curators, the knife book editors, designers and publishers don't even need to display the items in a well-lit room. The pages of Knives 2015 come alive with the most utilitarian, artistic, unique and exquisite blades from around the world. The world's finest edges--whether everyday carry pieces, hunters, bowies, belt and boot knives, camp knives, flipper folders or highly embellished works of art--find a home in the 35th edition of the Knives annual book. And each is accompanied by complete specifications, descriptions and editorial comments. Add in a comprehensive Custom Knifemaker Directory, including email addresses, websites, phone numbers, specialties and technical information, and you can see why collectors and enthusiasts own every volume of this coveted book. Engrossing feature articles delve into frame-lock folders, blunt tips on tall ships, knives disguised as other items, survival knives, "A Sword for a Warrior King" and plenty more World's most complete Custom Knifemaker Directory The latest trends in handmade knives State-of-the-art engraving, scrimshaw, jewel inlay, sculpting and carving More knives, articles, information, trend-setting innovations and state-of-the-art embellishments than any other book on the market!

Discussion of major research on urban, industrial and agricultural pollution of groundwater, pollution from wells, salt an.