| Show f 1 FISH CULTURE sance the publication 0 of f our article on elsh fish antl anil its propagation Lewis lewiss sHills hills esq of this city kindly handed us a number of the springfield weekly hei ici biloan containing an au article on the artificial propagation of fish from which we condense the following the legislatures of the new england states have commissioners r and made appropriations for im praying the rivers running 46 through those states so that salmon saimon i brook trout and shad shrol may be propagated there therein in already fish ways ways have been erected over itlie the tho dams and falls of the merrimac and last year several thou thousand salm saim salmon saimon 0 n spawn obtained from the waters of yew brunswick were planted in its head waters and alid artificially impre impregnated na about ninety percent of or them were hatched and by b y next fall it is estimated that their average weight cilibe will be from five to seven pounds each 4 mr J S robinson of 0 meredith V village 11 N H has salmon spawn in his hatching boxes undated fecundated fec artificially fici ally which will probably be pla yee see eed ced d in the merrimac Merr imae lmae during the coming summer next year lt ift is intended to build nish fish ways on the connecticut saco allu arld and nud other rivers of new england preparatory to stocking them with salmon trout and shad this is said to be the first finst attempt of the kind klud in this countr country y but in europe if has been practiced for the last fifteen year years and latterly with great greab success experiments in the artificial culture of bf brook trout have been made in the united 1 states in lff lif which iloh as high as 99 Y per cent of all the spawn taken have been hatched last spring arseth Mr Seth green of mumford N X Y hatched ar f over and bijl hatch at least lacast the coming spring ponds and streams in yarl varl various oies parts of bf the country have thus brook airout trout and salmon lay their first crop of spawn n when about twenty months old each female of the former producing about eggs and doubli doubling hg in number yearly yar until they reach about the ile ill tie adm female ai C salmon produce from to eggs according to age and size when hatched artificially these fish are kept in the thy hatching boxes for three or 0 r four months when they are turned into to the stream being able to take care ofia of em selves 1 the following formoe form of box invented by b y mris mals S green has hag been found to anaver aver admirably for the purpose of arti art facial fi cial incubation too poo two feet long 15 inches wide and 15 mii Ari inches blies elles deep with a fine wire cloth nail nall ed on the bottom and a board four feet long and four inches wide nailed on each eh side of the box edgewise for floats abo ut two inches from the top at the elower flower lower end of the box and six inches from the top at the upper end A box of this description anchored with cords 1 to the floats was placed in the connecticut river liver where the current ran about two to miles an axi hour from to spawn were placed in it at a time nine nixie hundred and ninety nine in a thousand of which were hatched this experiment was continued until about young shad had been turned into the river the hatch per day varying from to water at a temperature of is considered I best for hatching the spawn the young shad when hatched hatche dare are three eighths of aninch longwith long iong with the egg attached to the umbilical cord upon which they live for three days when they take lo 10 the stream and provide for themselves the agricultural report of 1866 contains much interesting information in relation to tor this subject we would advise all our readers who take any interest hi in th the a propagation offish of fish to procure the volume and read it from it we learn that females and males are obtained wl when en they have apparently reached their term andi audi and when mature the ova aie ale are pressed out from the former the milt from the jatter latter one of the difficulties incidental to artificial fecundation is the uncertainty as to the period when the pregnant fish may be most advantageously manipulated but the rules by which this is known known are easily understood this suba subject act is worthy of the attention of our people our waters should be utilized with a little pains they can all be stocked with our savory and delicious trou trout an enormous amount of food can thus be raised and at comparatively little leand expense we are not s sufficiently acquainted with our own trout fisheries to speak knowingly respecting their condition but we are under the impression that the to des 1 decreasing it is an easy thing of the troy fisheries in the countries fish are old worlds worl das well as in the new england states by the peoples wanton waste and disregard of natural laws the salmon and other valuable species have been or driven from their thele waters we should guard against sueh such a result nature mature is prolific but she ean can be drawn upon too ilea liea heavily vily vlis |
