requirements, Oxygen consumption, Oxygen debt, and 



under Intermediary metabolism) 

 743 Metabolism measurement 

 743 Metabolite collection 

 566 Metamorphosis 

 724 Microbiological ichthyotoxins 

 487 Metencephalon 

 618 Micros poridiu 



704 Microsporidiosis 

 749 Mideast 



Migrations (See also: Seasonal abundance of various 

 686 systematic groups, and under Home range and homing) 

 727 Milt storage (See also: Artificial fertilization) 

 588 Mimicry 

 448 Mineral content 

 577 Mineral requirements 



Mineral waters (See also: Inorganics in water, Thermal 

 592 springs) 



Minnow, freshwater (See: Cyprinidae) 

 584 Miocene 



Mississippian 



Models (See: Artificial model habitats, Fishery dynamics, 

 Mathematical population models) 

 734 Models and exhibitions (See also: Museum exhibit fish) 

 640 Mollusca 

 619Monogenea 



Monograph (See: Comprehensive work) 



Moray eel (See: Muraenidae) 



Mormyromasts 



Morphometric techniques (See: Meristic morphometric 

 techniques) 



444 Morphometries 



Motion pictures (See also: Recording cameras and TV) 

 Motivation (See: Drive or motivation) 



445 Mouth (See also: Buccal cavity. Jaws, Oral teeth) 

 Mouthbreeding (See: Oral brooding) 



507 MSH cell 

 466 Mucus 

 466 Mucus glands 

 590 Mudflats 



Mudminnow (See: Umbridae) 



Mullet (See: Mugiloidei) 

 695 Multiple choice testing 



Muscle contractile process 



Muscle tone maintenance 



Muscles (See also: Axial skeletal muscles, Mechanical 

 engineering of body, Physics and mechanics of muscle, 

 474 Red muscles, Sexually dimorphic muscles) 

 481 Muscular electrophysiology (See also: Synapses) 

 734 Museum 



Museum exhibit fish (See also: Models and exhibitions) 

 604 Mutagenic agents (See also: Radioactivity) 

 582 Mutations 

 474 Myodome 

 618 Myxosporidia 



705 Myxosporidiosis 



697 Naive responses to stimuli (See also: Effects of experience) 

 496 Narial lamellae 



496 Narial water-moving devices 



Natural history 



Natural hybridization (See also: Introgressive 

 hybridization, Isolating mechanisms, and under 

 580 Hybrid) 



Natural intraspecific hybridization 



Natural mortality (See also: Differential sex mortality, 

 712 and under Population dynamics) 

 588 Natural selection (See also: Population genetics) 



Needlefish (See: Belonidae) 

 628 Nematoda 

 633 Nemertea 



698 Neoplastic diseases 

 443 Neotype 



590 Neritic zone 



Nerve degeneration 

 Nerve fibers 



695 Nerve transection 



482 Nervous electrophysiology (See also: Synapses) 



Nervous plexi 



Nervous system (See also: Color change, Embryo 



behavior, Heart nerve supply, Neuroendocrine system, 



Regulatory respiratory mechanisms, Sense organs, and 



under Behavior and Larva, as well as the Innervation 



482 of structures and organs) 



Nervous system interference (See also: Nerve 

 695 degeneration and under Behavior in experiments) 

 693 Nest construction 

 734 Netting 



Neuro-intermediate lobe (See: Pars intermedia) 



Neuroendocrine environment reaction (See also: Cyclical 

 505 changes) 



505 Neuroendocrine feedback mechanisms 

 504 Neuroendocrine substances 

 501 Neuroendocrine system (See also: Saccus vasculosus) 



Neurohypophysis (See also: Adenohypophysis, Sexually 



503 dimorphic pituitary) 

 491 Neuromasts 



482 Neurons 



501 Neurosecretion in brain 



504 Neurosecretion in spinal cord 

 443 New family 



443 New genus 

 443 New name 



441 New species 



442 New subspecies 



441 New taxonomic unit (See also items above) 

 613 Nitrogen (See also: Gas bubble disease) 



Nitrogen metabolism (See also under Intermediary 

 455 metabolism and Nucleic acids) 



Nitrogen transport (See also: Ammonia) 

 Non-intentional artificial selection (See also: 



Domesticated fish) 

 Nonfactorial genetic analysis (See also: Population 

 genetics) 



749 North America 



750 North Asia 



751 North Atlantic ocean 



752 North Pacific ocean 



495 Nose (See also under Chemical senses) 

 Notochord 

 Nucleic acids 



502 Nucleus lateralis tuberis 

 502 Nucleus preopticus 



Numerical taxonomy (See also: Computer analysis) 



559 Nuptial tubercles 



Nutrition (See also: Feeding captive fish, and under Fish 

 575 cultural methodology) 



Nutritional metabolism (See also: Carbohydrate 



metabolism, Lipid metabolism, Nitrogen metabolism, 



Protein synthesis) 

 Nutritive value of flesh (See also under Fish as food) 



Obituary (See: Biography and obituary) 

 736 Observation aquaria 



Observing live fish (See also: Sonar observation, and 

 under Behavior in experiments, Ecological techniques, 

 Embryological techniques, and Physiological 

 736 techniques) 

 751 Oceanic regions 



Oceanic zone 

 489 Oculomotor nerve 

 468 Odontodes 

 724 Oil dispersant 

 724 Oil pollutants 

 488 Olfactory nerve 

 584 01igocene 

 633 Oligochaeta 

 592 Oligotrophic lakes 

 465 Ontogenetic color change 



Ontogeny (See also: Gerontological pathologies, Variation 

 with age, and Change with age of various structures, 



560 organs, and systems) 



Metabolism 

 measurement 

 to 

 Ontogeny 



847 



