56 



Appendices to Twenty-fifth Annual Report 

 (3) Parr — 1| years to 2 years old. 



Date. 



Sept. 1905 



Oct. 



Nov. „ 



Dec. „ 



Jan. 1906 

 Feb. „ 



Length. 



Cm. 



10-1 



10- 4 



11- 6 



12- 2 



10- 5 

 9- 



12- 



11- 8 

 14-5 

 ID 

 11-7 



8-9 

 8-5 

 10-5 



Inches 



4 

 4* 



4| 



3* 

 if 

 4f 



5| 

 4| 



4-| 



3£ 

 3| 

 4i 



Number of Lines on Scale. 



Total 



22 

 20 

 21 

 22 

 24 

 17 

 21 

 26 

 26 

 18 

 19 

 17 

 19 

 20 



1st 

 Year. 



2nd 

 Year. 



S. W. 



12 4 



10 4 



12 3 



9 4 



12 4 



10 2 

 12 4 

 12 7 

 12 6 



11 0 

 11 0 



8 0 



9 3 

 7 3 



3rd 

 Year. 



Where 

 captured. 



|_ 7 miles up 



y Tidal water. 



Remarks. 



Sent as partial 

 smolts,but thefor- 

 malinin which they 

 were preserved in- 

 jured theircolour. 



. Scales slightly 

 ' silvery. 



1 



! Thick mem- 

 \- brane over 

 scales. 



T Membrane clear- 

 I ing off scales 

 J and operculum 

 V. silvery. 



No,e. — Lines of the second year are divided into S. (summer) and W. (winter). 



The specimens taken in September, October, and November have 

 finished their second summer's feeding, and all show the effect of colder 

 weather and diminished growth in a contraction of the lines towards 

 the periphery of the scale. These were sent me as partial smolts, and 

 it is curious that all the specimens in this Table which have lines of 

 winter feeding on their scales were more or less silvery ; while those 

 got in December and January had no winter lines, and were dark in 

 colour, owing to the covering membrane being thick. The September- 

 October parr were taken at Stanley, and much resemble the November 

 catches in the tidal water, if allowance is made for a few weeks' extra 

 feeding, which perhaps the latter benefited by. After this month the 

 same class of fish was not found when netting the upper part of the 

 estuary, and may have migrated seawards without assuming the real 

 silvery garb of the May smolt, which possibly is dependent on tempera- 

 ture. While migration is suggested by their disappearance from the 

 tidal water, it must be remembered that parr display a roving disposi- 

 tion, and often show as much eagerness to push up stream as salmon do 

 at the approach of the spawning season. The December- January speci- 

 mens were few in number, and while the last summer's feeding was appar - 

 ent, there were no signs of winter growth, and the membrane over the 

 scales was thick, while in February- March we find it more delicate along 

 with some sheen on the operculum, pointing to the commencement of 

 the fcinolfc stage. 



[Table. 



