Fish Hatchery Management - fisheries & aquaculture

488 FISH HAT(-IIF.R]' MANAGLMLN IMeristic Characters Body parts that can be counted (scales, gill rakers,vertebrae, etc.); useful in species identifications.Merthiolate, Sodium (Thimerosal) o-Carboxyphenyl-thioethylmercury,sodium salt; used as an external disinfectant, especially for living fisheggs.Metabolic Rate The amount of oxygen used for total metabolism perunit of time per unit of body weight.Metabolism Vital processes involved in the release of body energy, thebuilding and repair of body tissue, and the excretion of waste materials;combination of anabolism and catabolism.Methylene Blue 3, 7-Dis-Dimethylamino-phenazathionium chloride; aquinoneimine dye effective against external protozoans and superficialbacterial infections.tt":.J;. Microorganism, such as a virus, bacterium, fungus, or proto-MicropyleMigrationMiltMitosisMJBOpening in egg that allows entrance of the sperm.Movement of fish populations.Sperm-bearingfluid.The process by which the nucleus is divided into two daughternuclei with equivalent chromosome complements.Coffee can; essential measuring device used by some fish culturistsin lieu of a graduated cylinder.Monthly Temperature Unit (MTU) Equal to one degree FahrenheitMorbidabove freezing (SZ' F) based on the average monthly water remperature(30 days).MorbidityCaused by disease; unhealthy; diseased.The condition of being diseased.Morbidity Rate The proportion of individuals with a specific diseaseMoribundduring a given time in a population.Morphologyplants.MortalityObviously progressing towards death, nearly dead.The science of the form and structure of animals andThe ratio of dead to living individuals in a population.Mortality Rate The number of deaths per unit of population during aspecified period. Synonyms: death rate; crude mortality rate; fatalityrate.Motile Aeromonas Septicemia (MAS) An acute to chronic infectiousMottleddisease caused by any motile bacteria belonging to the genus Aeromonas,primarily Aeromonas hydrophila or Aeromonas pun(tate (: Aeromonasliq uifaciens) . Synonyms : bacterial hemorrhagic septicemia; pike pest.Blotched; color spots running together.Mouth Fungus Sae Columnaris Disease.