Larva 



Seasonal changes 

 Reduction of range by natural 

 Reproductive season 

 Habitat preference 



Temperature 

 Migrations 

 Vertical migrations 

 Sampling in fisheries 

 Maximum yield 

 Standing crop 

 Seining 



Experimental analysis 

 Vertical distribution 

 Activity patterns 



Experimental analysis 

 Trisopterus capelanus 

 Hemoglobin 



Change with age 

 Trisopterus esmarki 

 Meristics 



Gill rakers 

 Trawling 



Experimental analysis 

 Trisopterus luscus 

 Identifying characters 



Young 

 Meristics 



Gill rakers 

 Axial skeletal muscles 

 Esterases 



Biochemistry 

 Sclera and cornea 

 Carbohydrate content 

 Biochemistry 

 Vertical distribution 

 Nematoda 



Parasite systematics 

 Trisopterus m /nut us 

 Identifying characters 



Young 

 Meristics 

 Gill rakers 

 Urophycis 



Seasonal abundance 

 Urophycis chuss 

 Seasonal abundance 

 Feeding 



Habitat preference 

 Urophycis cirratus 

 Vertical distribution 

 Distribution 

 Urophycis floridanus 

 Caudal skeleton 

 Anatomy 



Descriptive evolution 

 Urophycis regius 

 Vertical distribution 

 Monogenea 



Parasite life history 

 Distribution 

 Feeding 

 Urophycis simplex 

 Synonymy 

 Subspecies 

 Otoliths 

 Miocene 

 Urophycis tenuis 

 Vertical distribution 

 Distribution 

 Macrouridae 

 Synonymy 

 Key 

 List of types 



National Museum, Ireland 

 Caudal skeleton 

 Anatomy 



Descriptive evolution 

 Visceral skeleton 



Anatomy 

 Skull 



Anatomy 

 Jaw muscles 

 Anatomy 

 Function 



Descriptive evolution 

 Otoliths 



Anatomy 

 Sagitta 

 Miocene 



808471 

 808982 

 807667 



809100 

 807667 

 807667 



805499 



805728 



808212 

 806330 



808212 

 808212 



805803 



808212 



808212 



808873 



807207 

 806497 

 805998 



804673 

 804673 



804362 

 804673 

 806497 



807965 

 807965 

 807965 

 807965 



807903 

 807903 



807133 



807262 

 807262 

 807262 



807262 

 807262 



807965 

 806684 

 807965 

 807965 

 806740 



Nematoda 



Distribution of infection 

 Distribution 



Habitat preference 

 Coelorhynchus 

 Key 



Distribution 

 Coelorhynchus fasnatus 

 Digenea 



Distribution of infection 

 Coelorhynchus multispinulosus 

 Migrations 

 Mass mortalities 

 Seasonal abundance 

 Temperature 

 Coelorhynchus rectus 



Eocene 

 Coryphaenoides acrolepis 



Habitat preference 

 Coryphaenoides pectoralis 

 Vertical distribution 

 Distribution 

 Coryphaenoides rupestris 

 Host and parasite phylogeny 

 Monogenea 

 Coryphaenoides whitsoni 

 Cestoda 



Parasite systematics 

 Fuyangia filifera 

 Monogenea 



Parasite systematics 

 Fuyangia pectoralis 

 Monogenea 



Parasite systematics 

 Hemimacrurus acrolepis 

 Monogenea 



Parasite systematics 

 Hymenocephalus , 

 Skull 



Anatomy 

 Hymenocephalm 

 Visceral skeleton 



Anatomy 

 Skull 



Anatomy 



Lionurus liolepsis 



Jaw muscles 



Anatomy 



Function 



Descriptive evolution 

 Lyconus 



Relationships 

 Telencephalon 

 Macrourus 

 Sagitta 

 Miocene 

 Copepoda 



Parasite systematics 

 Distribution 

 Macrourus berglax 

 Ciliata 



Parasite systematics 

 Macrourus canus 

 Coloration 

 Distribution 



Macrourus rupestris 



Lipid and fatty acid content 

 Change with age 

 Seasonal changes 

 Gut contents 



Change with age 

 Seasonal changes 

 Macruronus 

 Relationships 

 Telencephalon 

 Malacocephalus laevis 

 Identifying characters 



Otoliths 

 Jaw muscles 

 Anatomy 

 Function 



Descriptive evolution 

 Vertical distribution 

 Malacocephalus occidentalis 

 Identifying characters 

 Otoliths 

 Nematonurus 

 Distribution 

 Nematonurus pectoralis 

 Distribution 



805473 

 805339 

 808409 

 806006 



808135 



805234 

 806006 



807411 

 805071 

 804493 



804493 



807262 



807262 



807997 

 807997 

 807997 



808129 

 805858 



Gadidae 



(continued) 



Theragra 



to 



Urophycis 



Macrouridae 



808581 



806753 

 807997 



808471 



395 



