Analysis Of The Microincrements Rhythmic Structures In Otolith And Otolith Morphometry
For The Age, Growth And Important Life Periods Determination Of The Antarctic Fish Pseudochaenichthys georgianus Norman, 1939
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The work contains data proceeding from Antarctic scientific investigations save in peer revieved CCAMLR database. The work is dedicated to important in the ichthyology question of the readings of the fish age. The readings of the age of the icefish (Channichthyidae) are exceptionally difficult, continually yet the lack of sufficient records. The methodology depends on calculation of twentyfour hours increments it is very much work and time-consuming. The use of the method of the measurement of the changes of the optical thickness of otoliths tissues extends considerably the investigative works...
The work contains data proceeding from Antarctic scientific investigations save in peer revieved CCAMLR database. The work is dedicated to important in the ichthyology question of the readings of the fish age. The readings of the age of the icefish (Channichthyidae) are exceptionally difficult, continually yet the lack of sufficient records. The methodology depends on calculation of twentyfour hours increments it is very much work and time-consuming. The use of the method of the measurement of the changes of the optical thickness of otoliths tissues extends considerably the investigative workshop independent from the explorer predisposition.The measurements of the radii of otolith growths was done on several chosen planes of crosssection of the otoliths. The work reconstructs on the basis of the analysis of the otolith growth, the time-periods and the length of the most important life stages of the species. The diural increments, visible in otoliths, this work documents adequate and independently makes up the unique scanning photo of observed microstructure of the most fragile otoliths, that can be used for farther investigations of little recognized of the biology of the icefish.
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