The Fishes of Alberta

The Fishes of Alberta
Author: Joseph S. Nelson
Publisher: University of Alberta
Total Pages: 468
Release: 1992
Genre: Nature
ISBN: 9780888642363

Information on the 59 species of fish found in Alberta, information on identification, distribution, biology, taxonomic history, and angling.

The Medieval World of Nature

The Medieval World of Nature
Author: Joyce E. Salisbury
Publisher: Routledge
Total Pages: 278
Release: 2019-06-26
Genre: History
ISBN: 0429584237

Originally published in 1993, The Medieval World of Nature looks at how the natural world was viewed by medieval society. The book presents the argument that the pragmatic medieval view of the natural world of animals and plants, existed simply to serve medieval society. It discusses the medieval concept of animals as food, labour, and sport and addresses how the biblical charge of assuming dominion over animals and plants, was rooted in the medieval sensibility of control. The book also looks at the idea of plants and animals as not only pragmatic, but as allegories within the medieval world, utilizing animals to draw morality tales, which were viewed with as much importance as scientific information. This book provides a unique and interesting look at the everyday medieval world.

Aquaculture Sourcebook

Aquaculture Sourcebook
Author: Edwin S. Iversen
Publisher: Springer Science & Business Media
Total Pages: 317
Release: 2012-12-06
Genre: Science
ISBN: 1468414283

As traditional commercial fishing becomes increasingly expensive and restrictive, aquacultural fish production emerges as a practical viable alternative. The Aquaculture Sourcebook is an introductory text and ready reference for information on the fresh-, brackish-, and salt-water farming of both fish and shellfish, as well as of several important algae. Until now, such material has been available only in scattered publications; but the Aquaculture Sourcebook incorporates all the feasibility data pertinent to farming aquacultural species in North America into one easy-to-use text. It will be welcomed not only by current and future aquaculturists, but also by fisheries, seafood company managers, biologists, teachers, and students. The Aquaculture Sourcebook has been designed to satisfy the needs of fisheries, scientists, and commercial aquaculturists by providing, in a handy and well-organized format, information vital for successful North American aquacultural ventures. Concise details are given for over a hundred individual speices, including not only those raised for human consumption, but also organisms reared for feed, bait, or other purposes. Each entry in this valuable volume covers such relevant material as: *the scientific and common names of the organism *its visual appearance and distinctive characteristics *habitat range specifications *species reproduction and development *age- and growth-related factors *specific parasites an diseases *potential predators and/or competitive species *its prospects for future aquacultural success Key groups of closely related species are discussed in a geographical context, highlighting areas which each will find the habitat best for its survival. Great care has been taken to specify ranges of tolerable salinity and optimum temperature for candidate species, and emphasis has been placed on creating aquacultural environments that replicate those normally habitated in nature. Comprehensive, informative, and accessible to layperson and scientist alike, the Aqualculture Sourcebook is both the perfect desktop reference for anyone establishing an aquacultural facility, and a ready reference to help maintain one.