Seasonal abundance 



Population changes 

 Avoidance responses 



Trawling 

 Schooling 

 Natural mortality 

 Fishing mortality 

 Scomberomorus regalis 

 Erythrocytes 



Cytology 

 Hemoglobin 

 Scomberomorus tritor 

 Larva 



Anatomy 

 Seriola 



Ciguatera producing 

 Thunnus 



General structure and behavior 



Iris and pupil 



Innervation 

 Histology 

 Biochemistry 

 Ovarian cycles 

 Testicular cycles 

 Distribution within habitat 

 Temperature 



Description and occurrence 

 Acanthocephala 



Parasite systematics 

 Distribution 



Feeding 



Seasonal changes 

 Activity patterns 



Group effect 

 Gut contents 



Seasonal changes 

 Habitat preference 

 Schooling 



Identification 

 Migrations 



Fishing methods 



Experimental analysis 



Longlining 



Experimental analysis 



Regulation of catch 

 Sonar observation 

 Vertical distribution 

 Thunnus alalunga 

 Meristics 



Morphometries 



Hemoglobin 



Infraspecific variation 

 Biochemistry 

 Polymorphism 

 Sexually dimorphic size 

 Larva 



Anatomy 

 Rate of growth 



Sex ratio 



Geographic variation 

 Nematoda 



Parasite systematics 

 Copepoda 



Parasite systematics 

 Distribution 



806942 

 808183 

 808304 



807764 



807764 

 808187 



804450 

 804450 

 808147 



805861 

 806011 

 806738 



806419 

 80<967 

 806419 

 808147 

 808963 

 804318 

 804319 

 804967 

 806503 

 808723 

 806738 

 807135 



804318 

 804319 



807283 

 807284 

 804924 



Larva 

 Populations 



807306 

 808002 



808147 



808144 

 807190 

 808654 

 808652 

 808002 



805803 



803952 



807030 

 807031 

 807189 

 807225 

 808147 

 808652 

 806745 

 808143 

 807306 

 807857 



Population changes 



Seasonal abundance 



Juvenile 

 Hydrodynamic 

 Gut contents 



Habitat preference 

 Temperature 



Migrations 



History of fisheries 

 Fishing methods 



Longlining 



Experimental analysis 

 Radioactive pollutants 



Distribution 

 Archeological data 

 Thunnus albacares 

 Relationships 

 Meristics 

 Morphometries 



Skin 



Wounds 



Abnormality 

 Audiogram 

 Visual sensitivity and acuity 



Experimental analysis 

 Gills 



Surface volume relationship 

 Anatomy 

 Function 

 Hemoglobin 



Infraspecific variation 

 Biochemistry 

 Ovarian cycles 



Testicular cycles 



Larva 



Anatomy 

 Rate of growth 



Geographic variation 



Morphometries 

 Distribution within habitat 

 Vertical distribution 

 Circadian rhythms 

 Temperature 



Description and occurrence 

 Effect on fish 



Description and occurrence 

 Gas transport by blood 

 Seasonal abundance 

 Habitat preference 



Description and occurrence 

 Light 



Effect on fish 

 Schooling 



Fishing gear selectivity 

 Transparency 



Habitat preference 

 Oxygen 



Lethal environmental limits 

 Description and occurrence 

 Monogenea 



Incidence of infection 

 Parasite systematics 

 Digenea 



Incidence of infection 

 Host parasite interactions 

 Copepoda 



Host parasite interactions 

 Petromyzontomorpha 



As predator 

 Distribution 



806618 



Scombridae 



807030 



(continued) 



807031 





808652 





807994 





808279 



Scomberomorus 



808364 



to 



808365 

 808652 



Thunnus 



808654 





807979 





808364 





808474 





808982 





804802 





808147 





807189 





807857 





807225 





807306 

 808147 



805213 

 805213 



805002 

 808279 

 808473 

 808279 

 808473 



808144 

 805654 



807306 

 803739 



807782 

 803739 



806664 

 805498 



804226 



807131 

 807030 

 807031 

 807189 

 808147 



805922 

 806745 

 808143 



277 



