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Dictionary of ichthyology
- 9 A B C D E F G H I J K L M N O P Q R S T U V W X Y Z
A

abbreviation for acre (4046.9 m2, 0.405 ha, 43,560 ft2, 4840 yd2, 0.00156 mi2)
abbreviation for anal fin (rays)
annual total mortality rate (the number of fish which die during a year divided by the initial number. Also called actual mortality rate, coefficient of mortality (Ricker, 1975))
abbreviation for annum, meaning year. Usually used in combination, e.g. Ma, meaning million years


Оригинал статьи 'A' на сайте Словари и Энциклопедии на Академике