1372 | Animals |
1041 | Perches |
363 | Female |
254 | Male |
214 | Fishes |
203 | Water Pollutants, Chemical |
200 | Fresh Water |
172 | Fish Diseases |
130 | Species Specificity |
122 | Environmental Monitoring |
115 | Phylogeny |
109 | Liver |
104 | Chickens |
100 | Molecular Sequence Data |
100 | Housing, Animal |
95 | Perciformes |
89 | Ecosystem |
86 | Time Factors |
81 | Humans |
80 | Behavior, Animal |
77 | Seasons |
70 | Cyprinidae |
69 | Retina |
64 | Genetic Variation |
64 | Base Sequence |
63 | Lakes |
62 | Gills |
59 | Temperature |
56 | Predatory Behavior |
56 | Mercury |
54 | Sequence Analysis, DNA |
53 | Reproduction |
52 | DNA, Mitochondrial |
50 | Muscles |
47 | Host-Parasite Interactions |
46 | Population Dynamics |
45 | Animal Welfare |
45 | Animal Husbandry |
45 | Amino Acid Sequence |
44 | Rivers |
44 | Evolution, Molecular |
44 | Diet |
43 | Food Chain |
42 | Population Density |
42 | Microscopy, Electron |
42 | Microsatellite Repeats |
42 | Environmental Exposure |
42 | Biological Evolution |
41 | Models, Biological |
40 | Polymerase Chain Reaction |
40 | Oviposition |
40 | Larva |
40 | Body Size |
40 | Analysis of Variance |
39 | Feeding Behavior |
38 | Trematode Infections |
38 | Esocidae |
35 | Tissue Distribution |
35 | Sweden |
34 | Geography |
34 | Environment |
33 | Trematoda |
33 | Brain |
32 | Gene Expression Regulation |
32 | Fish Proteins |
32 | Finland |
32 | Cadmium |
32 | Body Weight |
32 | Adaptation, Physiological |
31 | Trout |
30 | Food Contamination |
29 | Sequence Alignment |
29 | Seawater |
29 | Neurons |
29 | Hydrogen-Ion Concentration |
29 | Copper |
28 | Prevalence |
28 | Ovum |
28 | Light |
28 | Genetics, Population |
28 | Cloning, Molecular |
27 | Polychlorinated Biphenyls |
27 | Muscle, Skeletal |
26 | Ovary |
26 | Fisheries |
26 | Dopamine |
25 | Stress, Physiological |
25 | RNA, Messenger |
25 | Poultry Diseases |
25 | Oocytes |
25 | Oncorhynchus mykiss |
25 | Helminthiasis, Animal |
25 | DNA Primers |
24 | Aquaculture |
23 | Zinc |
23 | Water Pollutants |
23 | Dose-Response Relationship, Drug |
23 | Carps |
23 | Biological Markers |
23 | Bass |
22 | Sequence Homology, Amino Acid |
22 | Kidney |
22 | Gonads |
22 | Birds |
21 | Ontario |
21 | Metals, Heavy |
21 | Geologic Sediments |
21 | DNA, Complementary |
21 | Acanthocephala |
20 | Sexual Behavior, Animal |
20 | Selection, Genetic |
20 | Electrophoresis, Polyacrylamide Gel |
20 | Eggs |
20 | Calcium |
19 | Polymorphism, Genetic |
19 | Organ Size |
19 | Insecticides |
19 | Immunohistochemistry |
19 | Hydrocortisone |
19 | Histocytochemistry |
19 | Biomechanical Phenomena |
18 | Sex Factors |
18 | Photoreceptor Cells |
18 | Methylmercury Compounds |
18 | Metals |
18 | Locomotion |
17 | Zooplankton |
17 | Testosterone |
17 | Swimming |
17 | Salmonidae |
17 | Reverse Transcriptase Polymerase Chain Reaction |
17 | Lizards |
17 | Kinetics |
17 | Intestines |
17 | Energy Metabolism |
17 | DNA |
17 | Cytochrome P-450 CYP1A1 |
17 | Circadian Rhythm |
17 | Bone and Bones |
17 | Age Factors |
16 | Sex Characteristics |
16 | Regression Analysis |
16 | Rats |
16 | Quebec |
16 | Oceans and Seas |
16 | Models, Genetic |
16 | Conservation of Natural Resources |
16 | Cestoda |
16 | Bayes Theorem |
15 | Water Pollution, Chemical |
15 | Testis |
15 | Social Behavior |
15 | Risk Assessment |
15 | Poland |
15 | Photic Stimulation |
15 | Motor Activity |
15 | Membrane Potentials |
15 | In Vitro Techniques |
15 | Haplotypes |
15 | Chromatography, High Pressure Liquid |
15 | Cestode Infections |
15 | Cell Nucleus |
15 | Alleles |
14 | Superior Colliculi |
14 | Spleen |
14 | Skin |
14 | Retinal Rod Photoreceptor Cells |
14 | Parasitic Diseases, Animal |
14 | Mitochondria |
14 | Life Cycle Stages |
14 | Genotype |
14 | France |
14 | Czech Republic |
14 | Biodiversity |
14 | Aggression |
14 | Adult |
13 | Water |
13 | United States |
13 | Triiodothyronine |
13 | Spermatozoa |
13 | Sequence Homology, Nucleic Acid |
13 | Russia |
13 | Retinal Cone Photoreceptor Cells |
13 | Random Allocation |
13 | Organ Specificity |
13 | Middle Aged |
13 | Microscopy, Electron, Scanning |
13 | Mice |
13 | Linear Models |
13 | Helminths |
13 | Gene Expression Profiling |
13 | Feathers |
13 | Estradiol |
13 | Enzyme-Linked Immunosorbent Assay |
13 | Eating |
13 | Dark Adaptation |
13 | Australia |
13 | Aging |
12 | Weight Gain |
12 | Video Recording |
12 | Proteins |
12 | Oxygen Consumption |
12 | Lipid Metabolism |
12 | Industrial Waste |
12 | Europe |
12 | Color Perception |
12 | Cells, Cultured |
12 | Adolescent |
11 | gamma-Aminobutyric Acid |
11 | Synapses |
11 | Radioimmunoassay |
11 | Phenotype |
11 | Pesticide Residues |
11 | Nesting Behavior |
11 | Molecular Weight |
11 | Metallothionein |
11 | Likelihood Functions |
11 | Intestinal Mucosa |
11 | Great Lakes Region |
11 | Gonadotropin-Releasing Hormone |
11 | Gonadal Steroid Hormones |
11 | Goldfish |
11 | Germany |
11 | Genome |
11 | Flight, Animal |
11 | Eukaryota |
11 | Cyclic AMP |
11 | Crustacea |
11 | Color |
11 | Cesium Radioisotopes |
11 | Cell Line |
11 | Animal Feed |
10 | Vision, Ocular |
10 | Tibia |
10 | Sperm Motility |
10 | Spectrophotometry, Atomic |
10 | Risk Factors |
10 | Rabbits |
10 | Protozoan Infections, Animal |
10 | Principal Component Analysis |
10 | Pigmentation |
10 | Oxygen |
10 | Ovarian Follicle |
10 | Nitrogen Isotopes |
10 | Lead |
10 | Kainic Acid |
10 | Hydrocarbons, Chlorinated |
10 | Glutamic Acid |
10 | Genetic Markers |
10 | Feces |
10 | Fatty Acids |
10 | Embryo, Nonmammalian |
10 | Ecology |
10 | Digestive System |
10 | DDT |
10 | Cell Division |
10 | Cattle |
10 | Catfishes |
10 | Carbon Isotopes |
10 | Blotting, Western |
10 | Africa |
10 | Africa, Eastern |
9 | Wisconsin |
9 | Waste Water |
9 | Vitellogenins |
9 | Staining and Labeling |
9 | Retinal Ganglion Cells |
9 | Parasites |
9 | Norway |
9 | Nickel |
9 | Hot Temperature |
9 | Heterozygote |
9 | Great Britain |
9 | Gene Expression |
9 | Fluorescent Antibody Technique |
9 | Epithelium |
9 | Electrophysiology |
9 | Darkness |
9 | DNA, Ribosomal |
9 | Cytochrome P-450 Enzyme System |
9 | Competitive Behavior |
9 | Chromosome Mapping |
9 | Canada |
9 | Bivalvia |
9 | Biometry |
9 | Aromatase |
9 | Aged |
9 | Adaptation, Ocular |
8 | Water Pollution |
8 | Waste Disposal, Fluid |
8 | Visual Pathways |
8 | Trees |
8 | Switzerland |
8 | Selenium |
8 | Seafood |
8 | Rhabdoviridae Infections |
8 | Reproducibility of Results |
8 | Receptors, GABA |
8 | Phylogeography |
8 | Photoperiod |
8 | Phosphorylation |
8 | New York |
8 | Models, Statistical |
8 | Mexico |
8 | Isoenzymes |
8 | Introns |
8 | Insulin-Like Growth Factor I |
8 | Hybridization, Genetic |
8 | Growth Hormone |
8 | Genetic Speciation |
8 | Gene Flow |
8 | Flounder |
8 | Eye Proteins |
8 | Erythrocytes |
8 | Equipment Design |
8 | Disorders of Sex Development |
8 | Cytochrome b Group |
8 | Chlorides |
8 | Cell Membrane |
8 | Cell Differentiation |
8 | Cell Count |
8 | Cannibalism |
8 | Brain Chemistry |
8 | Blood Glucose |
8 | Antibodies |
8 | Air Sacs |
7 | Xenopus |
7 | Xenopus laevis |
7 | Water-Electrolyte Balance |
7 | Water Pollutants, Radioactive |
7 | Vocalization, Animal |
7 | Vitellogenesis |
7 | Ultraviolet Rays |
7 | Tilapia |
7 | Survival Analysis |
7 | Snails |
7 | Sexual Maturation |
7 | Sex Differentiation |
7 | Serotonin |
7 | Sensory Thresholds |
7 | Salmon |
7 | Preoptic Area |
7 | Posture |
7 | Polycyclic Hydrocarbons, Aromatic |
7 | Plankton |
7 | Patch-Clamp Techniques |
7 | Ovulation |
7 | Optic Nerve |
7 | Nematoda |
7 | Muramidase |
7 | Mortality |
7 | Models, Theoretical |
7 | Microsomes, Liver |
7 | Liver Abscess, Amebic |
7 | Italy |
7 | Invertebrates |
7 | Introduced Species |
7 | Hypergravity |
7 | Hydroxyprogesterones |
7 | Gonadotropins |
7 | Glycoproteins |
7 | Glutamates |
7 | Glucosephosphate Dehydrogenase |
7 | Gene Frequency |
7 | Gastrointestinal Contents |
7 | Environmental Pollutants |
7 | England |
7 | Endocrine System |
7 | Disease Outbreaks |
7 | Cytoplasmic Granules |
7 | Cytochromes b |
7 | Cues |
7 | Copepoda |
7 | Child |
7 | Breeding |
7 | Body Constitution |
7 | Blotting, Southern |
7 | Blotting, Northern |
7 | Bird Diseases |
7 | Biotransformation |
7 | Antibodies, Monoclonal |
7 | Animals, Wild |
7 | Amino Acids |
7 | Agonistic Behavior |
6 | Wing |
6 | Weightlessness |
6 | Visual Fields |
6 | Vertebrates |
6 | Thyroid Gland |
6 | Tanzania |
6 | Spectrophotometry |
6 | Spatial Behavior |
6 | Smell |
6 | Smegmamorpha |
6 | Sewage |
6 | Sensitivity and Specificity |
6 | Receptors, Glutamate |
6 | RNA, Ribosomal, 16S |
6 | Protein Structure, Tertiary |
6 | Plants |
6 | Pituitary Gland |
6 | Phenols |
6 | Paper |
6 | Oxidoreductases |
6 | Odors |
6 | Novirhabdovirus |
6 | North America |
6 | Nerve Fibers |
6 | Myocardium |
6 | Muscle Proteins |
6 | Minnesota |
6 | Melanophores |
6 | Magnesium |
6 | Lymphocytes |
6 | Lipids |
6 | Lighting |
6 | Lectins |
6 | L-Lactate Dehydrogenase |
6 | Isopoda |
6 | Intestinal Diseases, Parasitic |
6 | Insects |
6 | Immunoenzyme Techniques |
6 | Ictaluridae |
6 | Heterophyidae |
6 | Gram-Negative Bacterial Infections |
6 | GABA Antagonists |
6 | Foot Diseases |
6 | Floors and Floorcoverings |
6 | Facility Design and Construction |
6 | Eye |
6 | Eye Movements |
6 | Exons |
6 | Electron Transport Complex IV |
6 | Ectoparasitic Infestations |
6 | Demography |
6 | Daphnia |
6 | DNA Virus Infections |
6 | DNA Adducts |
6 | Climate Change |
6 | Chromatography, Ion Exchange |
6 | Chromatography, Gel |
6 | Cell Size |
6 | Cats |
6 | Bone Density |
6 | Biomass |
6 | Binding Sites |
6 | Bile |
6 | Baltic States |
6 | Axons |
6 | Argentina |
6 | Anoxia |
6 | Animal Nutritional Physiological Phenomena |
6 | Acclimatization |
5 | Water Movements |
5 | Visual Perception |
5 | Virus Replication |
5 | Virus Diseases |
5 | Up-Regulation |
5 | Thyroxine |
5 | Stochastic Processes |
5 | Spores |
5 | Spinal Cord |
5 | Sodium-Potassium-Exchanging ATPase |
5 | Social Environment |
5 | Skates (Fish) |
5 | Semen |
5 | Seeds |
5 | Ranavirus |
5 | Protozoan Infections |
5 | Protein Binding |
5 | Pregnenolone |
5 | Ponds |
5 | Pesticides |
5 | Passeriformes |
5 | Parvalbumins |
5 | Oogenesis |
5 | Nova Scotia |
5 | Norepinephrine |
5 | Nitrogen |
5 | Nephelometry and Turbidimetry |
5 | Nematode Infections |
5 | Multivariate Analysis |
5 | Movement |
5 | Mining |
5 | Microsporidiosis |
5 | Microscopy, Electron, Transmission |
5 | Microcystins |
5 | Michigan |
5 | Mathematics |
5 | Mass Spectrometry |
5 | Maryland |
5 | Lipopolysaccharides |
5 | Lipid Peroxidation |
5 | Leukocyte Count |
5 | Lethal Dose 50 |
5 | Least-Squares Analysis |
5 | Lactic Acid |
5 | Isotope Labeling |
5 | Iridoviridae |
5 | Ion Channels |