This title explores the role of snakehead fish in introduced environments, how humans helped spread the species, the threats they pose to ecosystems, and efforts being taken to manage them. This book also includes a table of contents, two infographics, informative sidebars, a “That’s Amazing!” special feature, quiz questions, a glossary, additional resources, and an index. This Focus Readers title is at the Navigator level, aligned to reading levels of grades 3–5 and interest levels of grades 4–7.

In this thrilling panorama of real-life events, the bestselling author of Empire of Pain investigates a secret world run by a surprising criminal: a charismatic middle-aged grandmother, who from a tiny noodle shop in New York’s Chinatown managed a multi-million dollar business smuggling people. “Reads like a mashup of The Godfather and Chinatown, complete with gun battles, a ruthless kingpin and a mountain of cash. Except that it’s all true.” —Time Keefe reveals the inner workings of Sister Ping’s complex empire and recounts the decade-long FBI investigation that eventually brought her down. He follows an often incompetent and sometimes corrupt INS as it pursues desperate immigrants risking everything to come to America, and along the way, he paints a stunning portrait of a generation of illegal immigrants and the intricate underground economy that sustains and exploits them. Grand in scope yet propulsive in narrative force, The Snakehead is both a kaleidoscopic crime story and a brilliant exploration of the ironies of immigration in America.

Aquaculture Virology, Second Edition covers all the known virus families, and specific diseases that affect each aquatic organism. Descriptions of each disease includes disease name, structure and composition of virus, classification and virus replication, epidemiology, pathology and immunity, diagnostic methods (gross pathology, histopathology, cell culture, PCR, sequencing, ELISA, etc.) and prevention and control. This is an excellent reference of updated foundational and practical knowledge from experts in both academia and research.Those interested in fish viral diseases will find the book an excellent source for high quality illustrations of viral structure, diagrams of pathogenesis of diseases, and many images of gross pathology and histopathology lesions, using the same format in all chapters to facilitate the reading and studying. This second edition of the book will cover all virus families and the specific diseases relevant to aquaculture with current information delivered in a systematic and succinct way to the researcher, teacher, student, diagnostic laboratory staff, clinical veterinarian, aquaculture disease practitioner, farmer, and all people that are interested in viruses in general. - Provides unique, comprehensive information on animal pathogens and viruses found in aquaculture and fisheries - Presents high-quality illustrations of viral structure, diagrams of viral disease processes, gross pathology, and histopathology lesions to aid in understanding - Incorporates all updated changes in taxonomy since the first edition - Includes a new chapter on the impact of climate change on the manifestations of different aquatic animal viral diseases - Describes aquatic viruses of the major aquatic animals, fish, crustaceans, and mollusks

Fish have been a major component of our diet and it has been suggested that fish/seafood consumption contributed to the development of the human brain, and this together with the acquisition of bipedalism, perhaps made us what we are. In the modern context global fish consumption is increasing. However, unlike our other staples, until a few years back the greater proportion of our fish supplies were of a hunted origin. This scenario is changing and a greater proportion of fish we consume now is of farmed origin. Aquaculture, the farming of waters, is thought to have originated in China, many millennia ago. Nevertheless, it transformed into a major food sector only since the second half of the last century, and continues to forge ahead, primarily in the developing world. China leads the global aquaculture production in volume, in the number of species that are farmed, and have contributed immensely to transforming the practices from an art to a science. This book attempts to capture some of the key elements and practices that have contributed to the success of Chinese aquaculture. The book entails contributions from over 100 leading experts in China, and provides insights into some aquaculture practices that are little known to the rest of the world. This book will be essential reading for aquaculturists, practitioners, researchers and students, and planners and developers.

When learning how to fly fish, the special knots you need to be successful are sometimes difficult to master. And for many anglers, when a leader breaks out on the stream or you need to add a new tippet to your leader, it's almost impossible to remember how to tie the best knot. This Pocket Guide is the perfect tool for you to carry in your fly vest whenever you're out on the water. Included are easy-to-understand illustrations for making sure your backing, fly line, leader and tippet will not fail when you're fighting the fish of a lifetime.