
TY  - JOUR
A1  - Smith, Benjamin B. 
A1  - Walker, Keith F. 
T1  - Validation of the ageing of 0+ carp (<emph type="2">Cyprinus carpio</emph> L.)
JF  - Marine and Freshwater Research
JO  - Mar. Freshwater Res.
Y1  - 2003
VL  - 54
IS  - 8
SP  - 1005
EP  - 1008
KW  - known age, larvae, otoliths, resolution hypothesis, scanning electron microscopy.
UR  - https://doi.org/10.1071/MF03010 
N2  - Forty carp larvae were reared from eggs spawned in the Torrens River, Adelaide, South Australia, and their otoliths were examined at the time of hatching or at 6, 10, 15 or 20 days after hatching (post-hatch). Using light- and scanning electron microscopy (SEM), otolith increments were counted and compared with known post-hatch ages. Typically, the counts were one day (range 0&#8211;2 days) more than the known post-hatch age, but increment formation was daily to at least age 20 days. Thus, age estimates derived from otolith increment counts of wild-caught 0+ carp should be reduced by one day. Comparison with SEM data showed that light microscopy alone offers sufficient resolution for ageing 0+ carp. 
ER  -

