CONTENTS 



Page 



Introduction 1 



Biology of dogfish 1 



Classification 1 



Distribution and centers of abundance 2 



Development and growth 2 



Feeding 2 



Migrations 5 



History of the fishery 5 



The North American fishery in the Pacific 5 



The Atlantic fishery 6 



Effects of fishing on dogfish stocks 7 



The soupfin shark fishery 8 



Biological evidence of stock reduction 9 



Effects of large dogfish populations on man 10 



Effects of large dogfish populations on other species II 



Methods of control 12 



Reducing dogfish numbers 12 



Prospects for selectively poisoning dogfish 12 



Prospects for developing a fishery , 12 



Repelling and deterring dogfish 13 



Possibilities for dogfish utilization: characteristics and properties of dogfish oils and 



proteins 13 



Characteristics and properties of dogfish oils 14 



Dogfish body oils 14 



Dogfish liver oils 14 



Characteristics and uses of dogfish proteins 15 



Import and duty rates 17 



Summary 20 



Acknowledgments 21 



Literature cited 21 



Additional references 22 



111 



