This is a contribution to the conservation of members of the family Cambaridae. This book is focused on the evaluation of geographic changes caused by landscape scale and land use change that has impacted the ecology of North American crayfish species. The book includes chapters on geographic distributions, conservation strategies, and effects of contaminants on crayfish structure and function. Contributors include a variety of students associated with the Editor, as well as original contributions from the Editor's colleagues. From the conceptual frameworks to the case studies, Geographic Distribution, Ecological Impact, and Conservation Strategies for North American Crayfish will provide important considerations to assist in the conservation and protection of crayfish, with emphasis on stressors and actions necessary to protect and restore crayfish habitats and populations. This book is necessary for environmental and natural resource managers, researchers, and governmental agencies tasked with the protection, restoration, and management of wildlife populations.

The purpose of this book is twofold: on one hand, it gives a mathematical perspective of Daphnia which comprises studies focusing on introducing size-structured population dynamics models of Daphnia and their unification, as well as developing and analyzing mathematical models of size-structured population dynamics of several species of Daphnia. These include proving the well-posedness of the model and related regularity properties, determining the steady states and proving the principle of linearised stability and studying the (in)stability of the steady states. The mathematical perspective of Daphnia is written at a research level and it is intended for researchers in applied mathematics, differential equations, biomathematics, mathematical biology, mathematical ecology as well as graduate students in the above mentioned fields of research. The necessary background for reading the chapters is the knowledge of ordinary differential equations, partial differential equations, integral equations and functional analysis. On the other hand, this book also provides a biological perspective of Daphnia by focusing on topics such as: the swimming behaviour, inducible defense mechanisms in order to avoid predation, sexual reproduction, the use of Daphnia as a classroom organism and the role of Daphnia in ecotoxicological evaluations of contaminants. In addition, it contains several video movies attached to some chapters. The biological perspective of Daphnia is written at a research level and intended for researchers in biology, chemistry, ecology and environment as well as graduate students in the above-mentioned fields of research.

Crustaceans adapt to a wide variety of habitats and ways of life. They have a complex physiological structure particularly with regard to the processes of growth (molting), metabolic regulation, and reproduction. Crustaceans are ideal as model organisms for the study of endocrine disruption and stress physiology in aquatic invertebrates. This book is an overview of the extensive research that has taken place over the recent years on issues of crustacean reproduction.

In this revision of the calanoid copepod family Heterorhabdidae, 7 genera and 59 species are recognized, and 25 species are described as new. Included are keys to the genera and descriptions and illustrations of all species. A hypothesis of phylogenetic relationships is presented, and the geographic distribution of the species is discussed.

American Indians worshiped them as creators of the world, Napoleon ate them to celebrate his victories, Swedes have them shipped in from halfway around the world, and for Louisiana's Cajuns the humble crawfish is the centerpiece of cuisine, a symbol of ethnic pride, a staple commodity for thriving business ventures, and an inextricable part of folklore.

Research and interviews spice this delightful book that details the relationship between crawfish and humans--from antiquity to the New York markets of the 1880s; from Depression-era pauper's feast to gourmet entree of the 1980s Cajun cooking craze; from spring afternoon pastime to modern aquaculture agribusiness.

To get the reader's mouth watering, more than two dozen recipes from those who know crawfish best--both famous chefs and crawfishers--are interspersed throughout. Sections offer advice on catching, buying, handling, cooking, and, for those who wish to simplify their encounters with crawfish, ordering tasty dishes in restaurants. Included are also a bibliographical essay, an index to recipes, and a list of sources for spices, paraphernalia, and airfreight shipments of crawfish.