1 SS earaS ars 
Artuur.—On Fish Culture in New Zealand. 201 
Degrees of hardness. 
Rowell’s  .. iy bs - si = .. 7:1 degrees, hardish 
Wakatipu .. er a wig ing a ow we » very soft 
Opoho we oe es Se ae oe oo, 86 ” ” 
For table salt. 
Rowell’s =r ee es a A very little 
a oe ae os - <% Scarcely a trace 
: A little more than average 
Of ine fish, I find that piek a1 in number out of 24 got from 
Tasmania in 1868 by Mr. Clifford, survived the voyage, and these were put 
into the Water Company’s reservoir, Dunedin. They have thriven so well 
that numbers have, during succeeding years, been transferred to various ~ 
lakes and lagoons, as the Waihola and Wakatipu lakes, and lagoons at 
Tomahawk, West Taieri, Clutha, Gore, ete. Tench and goldfish were also 
introduced about this time, and some of these are now in the society’s 
ponds at the Botanic Gardens. The first tench, 18 in number, were put 
into the Dunedin reservoir in 1868. Mr. Worthington at Queenstown has 
reared successfully many thousands of young trout during the last few 
years, and distributed them in various rivers there. 
Southland Society. 
Brown trout, 400 in number, were got by this society in 1868, through 
the Otago society, from Tasmania. They formed the parent stock at the 
Wallacetown salmon ponds, whence the young fish were distributed in 
numerous rivers and streams of Southland to the number of 9,944 from 
1869 to 1876.* Such of the breeding fish as had been confined to the 
ponds for a number of years grew to a great weight (10lbs. in some cases), 
but otherwise they were not healthy. Fungus attacked them, which, 
though temporarily cured by dipping in salt water, carried off a number 
subsequently, so that Mr. Howard deemed it best to liberate the most of 
the remainder in the Makarewa river. The water supplying the ponds is 
obtained from a spring flowing out of a shingly terrace beside Mr. Howard's 
house, and close to the ponds. It is difficult to account for the disease just 
Mentioned developing itself in apparently strong fish; and the report of 
the Commissioners on the salmon disease in linglad at present throws 
Very little light on its cause. It appears at the same time that the germs 
of this fungoid growth are present more or less in all waters, and that if 
the individual salmon is not in sufficiently vigorous condition, it is very 
liable to contract the disease. This disease also it seems shows itself first 
on the bare or scaleless parts, as the gill-covers, fins, etc. Thorough 
“The chief rivers stocked are Waiau, Waihopai, Waikiwi, Puni, Oreti, Centre Creek, 
; a Makarewa, Winton, Upper Mataura, Benmore, Otemaiti, Waimatuku, and 
18 
