alysis 



Artificial propagation and pla 

 Introduction for fishery 

 Dams and barriers 

 Fishways 

 Experim 

 Juvenile 

 Heat pollution 

 Effect on fish 

 Migrations 

 Reproduction 

 History of ichthyology 

 Netting 



Experimental analysis 



Recording cameras and tv 

 Outdoor census and sampling 

 Migrations 

 Young 

 Oncorhynchus gorbuscha 

 DNA content and function 

 Seasonal changes 

 Migrations 

 RNA content and function 

 Seasonal changes 

 Migrations 

 Coloration 



Canthaxanthin 



Artificial feeds and feeding 

 Experimental analysis 

 Liver 



Change with age 

 Ultrastructure 



RNA content and function 

 Migrations 



Experimental analysis 

 Change with age 

 Beta galactosidase 

 Enzymology 



Experimental analysis 

 Temperature 



Seasonal changes 

 Change with age 

 Oogenesis 



Cytology 

 Ovarian cycles 



Histology 



Fecundity 



Infraspecific variation 

 Geographic variation 

 Testicular cycles 



Histology 

 Biochemical sex differences 

 DNA content and functu 



Migrations 

 RNA content and functic 



Migrations 



Sperm 



Artificial fertilization 

 Fecundity 

 Larva 



Protein content 

 Lipid and fatty acid co: 

 Rate of growth 

 Fry 



Experimental analysis 

 Young 

 Infraspecific variation 

 Populations 



Fry 

 Habitat preference 

 Fry 

 Vertical distribution 

 Circadian rhythms 

 Substratum 



Description and occ 

 Nest construction 



804672 

 803793 

 806506 



807647 

 808471 

 808472 



807654 

 807654 



806643 

 808924 



807731 



808924 

 808924 

 804962 



808913 



Effect on fish 

 Developing egg 

 Natural mortality 

 Digenea 



Incidence of infection 

 Parasite life history 

 Host specificity 

 Parasite life history 

 Experimental analysis 

 Cestoda 



Incidence of infection 

 Parasite life history 

 Parasite systematics 

 Parasite life history 

 Nematoda 



Incidence of infection 

 Parasite life history 

 Petromyzontomorpha 

 As predator 

 Migrations 

 Entosphenus tridentatus 

 As predator 

 Effect on fish 

 Distribution 



Seasonal changes 

 Seasonal changes 

 Population changes 

 Population density 

 Developing egg 

 Larva 

 Density dependent regulation 

 Developing egg 

 Larva 

 Availability and use of food 

 Reproductive season 

 Seasonal abundance 

 Hydrodynamics 



Fishing gear selectivity 

 Netting 

 Feeding 

 Young 



Experimental analysis 

 Availability and use of food 



Experimental analysis 

 Circadian rhythms 

 Gut contents 

 Fry 



Juvenile 



Change with age 

 Circadian rhythms 

 Habitat preference 

 Temperature 



Change with age 

 Salinity 



Change with age 

 Reproduction 



Nest construction 



Substratum 



Avoidance responses 



Gillnetting 

 Schooling 

 Heterotypic associations 



Young 

 Home range and homing 



Expansion of range by man 



Introduction for fishery 

 Experimental analysis 

 Migrations 



Fry 

 Vertical migrations 

 Gerontological pathologies 



Enzymology 



History of fisheries 

 Fishing gear selectivity 

 Experimental analysis 



Netting 

 Natural mortality 

 Egg 



Fry 

 Developing egg 



Larva 

 Migrations 

 Artificial propagation and planting 

 Mathematical population models 

 Fisheries improvement 



807392 

 807407 



806022 

 803519 

 807008 



806643 

 807484 

 808910 

 805432 



808924 

 806644 



808913 



804220 

 806434 

 805347 

 806411 



804644 



806022 



Salmonidae 

 (continued) 



Oncorhynchus 

 gorbuscha 



419 



