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This book is a comprehensive, generously illustrated, and up-to-date reference on the virology of fishes—predomiantly species of the class Osteichthyes, but including representative members of the classes Chrondrichthyes and Myxini. It covers some thirty years since the first virus was isolated from a fish and describes 63 diseases and agents of viral, viruslike, or mistaken viral nature.
This volume provides a selection of the most significant papers presented at the Second Conference on Fish Telemetry in Europe in La Rochelle, France, in April 1997. The conference was attended by 100 scientists from 18 countries. The contributions are grouped under the following headings: Methodology and New Developments, Tagging Procedures, Behavioural and Physiological Ecology, Fish Migration, Stock Management and Conservation. Particular emphasis was put on tag miniaturisation, multiple functions and sampling strategies. Papers concerned the effects of tags on fish for consolidating behavioural or original physiological investigations noticeably more open to the marine environment. Methods were essentially applied to study the relationships between fish and their natural environment. Besides providing up-to-date information on the state of fish telemetry, the book illustrates the increase in spatial and temporal scales and the number of tracked fish which gives a statistical basis for field study in behavioural ecology.
Described in 1986 as "a living legend," Glenn Hoffman was one of the world's foremost authorities on the parasites of fishes. This books narrates his life and 65-year professional career as a scientist, researcher, ambassador, colleague, and family man. Born in 1918 to "hard working Iowa farm folks," Dr. Hoffman grew up trapping and fishing for fun and profit. At the University of Iowa, he majored in zoology and worked for the Iowa State Conservation Department. From 1942 through 1946, he served in the U.S. Army as a lab technician, bacteriologist, and parasitologist in France, England, Germany, and Belgium. He returned to Iowa to earn his PhD in 1950, and taught at the University of North Dakota 19501957. From 1958 to 1975 he worked at the U.S. Fish & Wildlife Services Eastern Fish Disease Laboratory in Leestown, WV, and then at the U.S. Fish Culture Station in Stuttgart, Arkansas, until his retirement in 1985. He was the author of four major books and more than 100 articles on the causes, spread, and cures of parasite-related diseases in fish, including Parasites of North American Freshwater Fishes (1967, 2nd ed. 1999), called "the bible of American fish parasitology." His work and his generosity in collaboration developed an international following, and he made many trips abroad to share his expertise and receive the honors earned from his wide-ranging research and publication work. Personal, insightful, and reflective, this autobiography gives a glimpse inside the mind of a American scientist of the first rank.
These documents summarize some of the recent studies of the relationships among climate, the aquatic environment, and the dynamics of fish populations. The studies are mostly from the North Pacific ocean, but there are reports of investigations from the North Atlatic Ocean and from fresh water. Various papers include numerous examples of the relationships between fish abundance trends and the environment.
4 Water Sources ........................................ 149 Criteria ............................................. 149 Major types .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 150 . . . . . . . . . . . . Summary ............................................ 152 5 Water Treatment ...................................... 155 Requirements . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 155 . . . . . . . . . . . . Materials ............................................ 155 Treatment options . . . . . . . . . . . . . . . . . . . . . . . . . . . 156 . . . . . . . . . . . System design ........................................ 169 System monitoring and control . . . . . . . . . . . . . . . . . . . . . 172 . . . . . . . . Environmental considerations .............................. 174 Summary ............................................ 174 6 Culture Units ......................................... 175 Considerations in choosing culture units ...................... 175 Characteristics of culture units . . . . . . . . . . . . . . . . . . . . . 175 . . . . . . . . Applications of culture units .............................. 191 Hatchery design " . . . . . . . . . . . . . . . . . . . . . . . . . . 208 . . . . . . . . . . . Summary ............................................ 210 7 Obtaining Fish for Stocking . ............................. 211 Stock from the wild .................................... 211 Stock from the hatchery ................................. 211 Spermatogenesis (sperm formation) ....................... 232 Oogenesis (egg formation) ............................. 232 Oocyte maturation ................................... 233 Endocrine control of oocyte maturation and ovulation .......... 237 fuduced ovulation . . . . . . . . . . . . . . . . . . . . . . . . . . 238 . . . . . . . . . . Timing and egg quality . . . . . . . . . . . . . . . . . . . . . . . 257 . . . . . . . . . Artificial fertilization ................................. 265 Care of eggs ....................................... 267 Storage of gametes ................. ' .................. 269 Natural ovulation . . . . . . . . . . . . . . . . . . . . . . . . . . 270 . . . . . . . . . . Care of broodfish . . . . . . . . . . . . . . . . . . . . . . . . . . 289 . . . . . . . . . . Egg collection .. . . . . . . . . . . . . . . . . . . . . . . . . . . 290 . . . . . . . . . . fuduced vs natural ovulation ............................ 290 Broodfish adaptability . . . . . . . . . . . . . . . . . . . . . . . . . 291 . . . . . . . . . . Examples ............................................ 291 Genetic considerations . . . . . . . . . . . . . . . . . . . . . . . . . 295 . . . . . . . . . . Hybridization . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 296 . . . . . . . . . . . . Sex control .......................................... 296 Summary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 298 . . . . . . . . . . . . . vi 8 Nutrition of Larval Fish . . . . . . . . . . . . . . . . . . . . . . . 299 . . . . . . . . . . Feeding criteria ....................................... 299 Choice and culture of foods . . . . . . . . . . . . . . . . . . . . . . 307 . . . . . . . . . General feeding practices . . . . . . . . . . . . . . . . . . . . . . . 336 . . . . . . . . . . Specific feeding practices ................................ 352 General methods used in our hatchery . . . . . . . . . . . . . . . . . 372 . . . . . . . Industrial-scale larval food processing in Italian hatcheries ......... 373 Summary ............................................ 374 9 Nutrition of Juvenile and Adult Fish ...................... 375 ............................. 375 Requirements and components Broodstock nutrition .................................... 407 Nutritional disorders .................................... 408 Environmental considerations . . . . . . . . . . . . . . . . . . . . . 411 . . . . . . . . . Feed studies . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 411 . . . . . . . . . . . . Suggested feed formulas ................................. 460 Making and storing feeds ................................ 461 Feeding methods ...................................... 464 Summary ............................................ 467 10 Energetics ............................................ 469 Energy budget components and influencing factors . . . . . . . . . . . 469 . . . .