Chemical senses 



Function 

 Visual senses 

 Function 

 Nose 



Anatomy 

 Function 

 Geographic variation 

 Appendicular skeleton 

 Meristics 

 Morphometries 

 Zoogeography 



Clinal variation 

 Temperature 

 Effect on fish 



Fish control agents 

 Distribution 



807317 

 807317 



Population 



Surface volume relationship 

 Population density 

 Warning display 

 Function 



Descriptive evolution 

 Courtship 



Geographic variation 

 Mating 



CNS integration 

 Fish control agents 

 Antimycin-A 



Lethal environmental limits 

 Experimental analysis 



Gasterosteus aculeatus 

 Relationships 

 Subspecies 



Popular 

 General 

 Meristics 



Geographic variation 

 Morphometries 

 Spines 



Anatomy 

 Function 

 Ion and water relationships 



Prolactin 



Experimental analysis 



Salinity 

 Permeability 



Ion and water relationships 

 Experimental analysis 

 Coloration 



Axial skeletal muscles 

 Comparative enzymology 

 Biochemistry 

 Taste buds 

 Anatomy 

 Histology 

 Development 

 Visual senses 

 Survival value 



Experimental analysis 

 Neurohypophysis 

 Ultras tructure 

 Urophysis 



Ion and water relationships 

 Function 

 Adenohypophysis 



Ultrastructure 



Experimental analysis 

 Prolactin 



Effect on fish 



Mucus glands 



Gills 

 Ion and water relationships 



Effect on fish 

 Glomerulus 



Effect on fish 

 Gills 



Anatomy 



Histology 



Ion and water relationships 



Experimental analysis 



Prolactin 



In vitro techniques 



808604 

 807358 

 807435 



806181 

 806181 

 807543 

 807572 

 806282 

 807942 

 807572 

 807543 

 807572 



803592 

 803806 

 804759 

 804759 



808412 



804158 



803592 



803592 



803786 

 804895 

 803786 



804754 

 804754 

 805139 

 805139 



Gill excretion 



Experimental analysis 

 Arterial system 



Gills 

 Biochemical blood constituents 



Serum proteins 

 Enzymology 

 Hemoglobin 



Polymorphism 

 Biochemistry 



Migrations 

 Estrogens 



Effect on fish 



Aggressive behavior 

 Ovarian cycles 

 Temperature 



Experimental analysis 

 Light 



Experimental analysis 

 Fecundity 



Androgens 

 Effect on fish 



Aggressive behavior 

 Testicular cycles 

 Effect on fish 



Seasonal sexual coloration 

 Temperature 



Experimental analysis 

 Light 



Experimental analysis 

 Sexual dimorphism 

 Interstitial tissue 



Experimental analysis 

 Population density 

 Experimental analysis 

 Seasonal sexual coloration 

 Function 



Experimental analysis 

 Adaptive evolution 

 Inheritance 

 Geographic variation 

 Rate of growth 

 Starvation 



Effect on fish 

 Light 



Habitat preference 

 Caryotype 



Isolating mechanisms 

 Experimental analysis 

 Seasonal sexual coloration 

 Experimental analysis 

 Populations 

 Geographic variation 

 Ecotypes 



Comparative enzymology 

 Caryotype 

 Zoogeography 

 Temperature 

 Effect on fish 

 Ovarian cycles 

 Testicular cycles 



Seasonal sexual coloration 

 Light 



Effect on fish 

 Ovarian cycles 

 Testicular cycles 



Seasonal sexual coloration 

 Habitat preference 



Change with age 

 Salinity 



Effect on fish 



Mucus glands 



Gills 



Developing egg 



Lethal environmental limits 

 Urophysis 



Acclimation 

 Lethal environmental limits 

 Ciliata 



As parasite 

 Incidence of infection 



Change with age 

 Host specificity 



Host parasite interactions 

 Parasite systematics 

 Monogenea 



Distribution of infection 

 Incidence of infection 



Change with age 



803717 

 803786 



805929 

 807022 

 805929 



Gasterosteidae 

 (continued) 



809079 



808336 

 805156 

 805156 



809062 

 809062 



807543 

 807543 

 806635 



807656 

 807656 

 809055 



807473 



807543 

 807543 

 807572 

 807008 

 806181 

 806181 

 804098 



809062 

 808337 

 809062 

 808337 



809062 

 808337 

 809062 

 808337 



807656 



804751 

 804751 

 807543 

 807543 



804123 

 805965 

 805979 



806667 

 807495 

 805979 



207 



