Cottidae 



(continued) 



Cottus perplexus 

 Pesticide content 

 Dieldrin 



Experimental analysis 

 Productivity 



Artificial model habitats 

 Cottus petiti 



Invalidation 

 Cottus poecilopus 

 Relationships 

 Identifying characters 

 Synonymy 

 Popular names 



General structure and behavior 

 Morphometries 

 Lateral line pores and canals 

 Anatomy 

 Function 

 Biochemical blood constituents 

 Sexually dimorphic body form 

 ;raphy 



Distribution 



Population density 

 Interspecific competition 



Activity patterns 

 Inheritance 



Experimental analysis 

 Temperature 



Experimental analysis 

 Light 



Experimental analysis 

 Habitat preference 



Dams and barriers 



Effect on fish 



Water movement 



Cottus poecilopus X 



Cottus gobio X 



Natural hybridization 



Artificial hybridization 

 Cottus pollux 

 Visceral skeleton 

 Urohyal 

 Anatomy 



Identification 

 Distribution 

 Habitat preference 

 Cottus rhotheus 

 Mastigophora 



Parasite life history 

 Cottus ricei 



Distribution 

 Cottus sibiricus 



identifying characters 

 Sporozoa 



Parasite systemalics 

 Crossias tcntaculatus 



Distribution 

 Hemithptcrus americanus 

 Gills 



ATP ase content and functioi 



Biochemistry 

 Innervation 

 Anatomy 

 Function 

 Seasonal abundance 

 Leptocottus armatus 

 Coloration 



Brain 



Lipid and fatty acid content 

 Biochemistry 

 Corpuscles of Stannius 

 Anatomy 

 Histology 

 Ultrastructure 

 Function 

 Gills 



Enzymology 



Experimental analysis 

 Salinity 



294 



Juxlagiumeiuiar 



Histology 



Function 



Rate of growth 



Maximum size 



apparatus 



804235 

 806992 

 806992 



805264 



806257 

 804053 

 805264 

 806282 

 807942 

 804053 



804681 

 806257 

 804053 

 805199 

 805459 

 804053 

 806282 

 806569 

 807222 

 805199 

 805459 



803932 



803932 

 804053 

 805199 

 805459 

 807222 



803597 

 805199 

 803597 



807307 

 807194 

 806678 



804044 

 807358 

 805264 

 807254 

 807195 



804877 

 804877 

 807207 



805149 

 805149 

 805149 



806076 

 806076 



805149 

 807962 

 807962 



Temperatu 

 Acclii 



Description and 

 Salinity 



Acclimation 



Description and 

 Bacteria 



Chitinolytic bacteri; 

 As commensal 

 Population structure 

 Gut contents 

 Habitat preference 



Pathology and parasitism 

 Mesocottus haitej 

 Armor 

 Anatomy 



Use in systematics 

 Myoxocephalus 

 Relationships 



Computer a 

 Identifying ch 

 Meristics 

 Morphometries 

 Protein specificity 

 Geographic 

 Cestoda 



alys, 



Distribution of infection 

 Acanthocephala 



Distribution of infection 

 Distribution 



Larva 



Myoxocephalus aenaeus 

 Distribution 

 Reproductive season 

 Habitat preference 

 Myoxocephalus bubalus 

 Relationships 



Biochemical blood constituents 

 Myoxocephalus octodecemspinosus 

 Oculomotor nerve 

 Synapses 



Ultrastructure 

 Experimental analysis 

 Retina 

 Histology 

 Function 

 Gills 



Anatomy 



ATP ase content and function 

 Biochemistry 

 Sporozoa 



Host parasite interactions 

 Nematoda 



Distribution of infection 

 Acanthocephala 



Distribution of infection 

 Seasonal abundance 

 Myoxocephalus polyacanthocephalus 

 Caudal skeleton 



Anatomy 

 Caudal fin muscles 

 Anatomy 



Descriptive evolution 

 Head muscles 

 Anatomy 

 Function 

 Myoxocephalus quadricornis 

 Relationships 



Biochemical blood constituents 

 Delayed fertilization 

 Vertical distribution 

 Seasonal changes 

 Temperature 

 Effect on fish 



General embryology 

 Population changes 

 Habitat preference 



Temperature 

 Warning display 



Sound production 

 Mating 



Nest construction 

 Parental care of eggs 

 Myoxocephalus scorpioides 

 Habitat preference 

 Temperature 



Experimental analysis 

 Myoxocephalus scorpius 

 Relationships 



806854 

 806854 

 806854 

 806854 

 806854 

 806854 



806904 



807448 

 807448 

 807448 



807374 

 804895 

 806803 

 807412 

 805489 



806257 

 806257 



806258 



808650 



806258 

 806258 

 806258 

 806258 



808768 

 806257 



