Gadidae 

 (continued) 



'■ z~2..Z ZZ 



Parasite life history 



1 : ~tz : i~ 

 Host specificity 



Larva 



Young 



Seasonal abundance 



!::::: ~:zv.:~. 



Biochemical blood constituents 

 Habitat preference 

 Population changes 



Age class distribution 

 Population density 



Young 



Seasonal changes 

 Interspecific competition 

 Age class distribution 



392 



Availability and use of food 



Energy consumption 

 Reproductive season 



Adaptation 



Infraspecific variation 

 Seasonal abundance 



Developing egg 



Larva 

 Gut contents 



rtmtgf . ■_- age 



Seasonal changes 

 Preying on small prey 



Larva 



Change with age 



Digging for food 

 Habitat preference 

 Avoidance responses 



Sound reception 



Trawling 

 Group behavior 



Feeding 

 M grati □ 



Fishing methods 



Light 

 Fishing gear selectivity 



Experimental analysis 

 Fishery dynamics 



Computer analysis 

 Population dynamics 



Mathematical population model 

 mortality 



Egg 

 Recruitment 

 Maximum yield 



Computer analysis 

 Artificial propagation and planting 

 Trawling 



Experimental analysis 



Marking and tagging 

 Experimental analysis 



Otolith age study 

 Gadus ogac 



Coloration 



Gut contents 

 Gadus veaustus 



Synonymy 



■:"-■:: 



803990 



808030 



805280 

 805096 

 807541 



805090 

 805098 

 805269 

 805271 

 805274 

 807417 

 808031 

 808084 

 807541 



;----- 



805278 



805276 

 ■ --r 

 808030 

 808031 

 808032 

 808033 

 808034 

 808035 

 808084 

 808085 

 808086 

 . . .- 



808091 



■ --:: 



808292 

 805281 

 805282 

 807541 



■ : 5 ; - 



805517 

 808006 

 808005 

 808008 

 808035 

 808208 

 805283 

 808292 

 807421 



808292 

 307334 



• ! ■ 



805096 



805997 



806005 



808006 



806320 



■ "■- 

 807854 

 807840 



■ --;• 

 •■:*:-■■• 



806330 

 806333 



• • :■ 



806556 

 805519 



Otofitbs 



Anatomy 



V : :er s 

 Gsidropszrus iasulsrutn 



Identifying characters 



Distribution 

 Gzidropsarus mediterraneus 



Synonymy 



Popular names 

 GUIs 



Anatomy 



Histology 

 Arterial system 



Gills 

 Cuiata 



Distribution of infection 

 Nematoda 



Parasite systematics 

 Distribution 



Gut contents 

 Habitat preference 



Myxosporidiosis 

 Lota lota 

 Subspecies 



General structure and behavior 



Merisrics 



Morphometries 



Geographic variation 

 Silvery coloration 



3 -1~~ ' E 



Biochemistry 

 Hypo xanthine 

 Biochemistry 

 Vertebrae 



Dextrality or sinistraliry 

 Anatomy 

 Eye muscles 

 Anatomy 

 Function 

 Otoliths 



Ultrastructure 

 Function 

 Development 

 Biochemistry 



Z i . 7- t~: 

 Nose 



Innervation 



Experimental analysis 

 Narial lamellae 



Innervation 

 Ultrastructure 

 Visual pigments 



Seasonal changes 

 r_- :: t 

 Gills 



Anatomy 



Histology 

 .\rterial system 



GUIs 

 Ovarian cycles 

 Fecundity 

 Testicular cycles 

 Life span 

 Rate of growth 



Weight length relationship 



Zoogeography 



Fish communities 



Lentic waters 

 Reservoirs 



Habitat preference 



Introduction for fishery 

 Distribution within habitat 

 Water movement 

 Geographic variation 

 Light 



Effect on fish 



Orcadian rhythms 

 Activity patterns 

 Gliata 



Host specificity 



Host parasite interactions 

 Monogenea 



Distribution of infection 

 Digenea 



Distribution of infection 

 Parasite systematics 

 Cestoda 



Distribution of infection 



804183 

 804183 



80363! 

 806282 

 806282 



:.:-■' 

 803786 



803786 



i _•--' 



804426 

 803631 

 806282 

 805656 

 80426! 

 805656 

 805466 



806834 

 806282 

 807942 

 806834 



806834 



807464 

 807464 



803878 

 803878 



804027 

 805230 



80514! 



803786 

 803786 



803786 

 806834 

 806635 

 806834 

 806834 

 806635 

 806834 

 806635 

 807008 



808215 



808461 

 808496 



805108 

 805108 



805419 

 806904 



