. Science of the sea. An elementary handbook of practical oceanography for travellers, sailors, and yachtsmen. Fig. 205.—Horny Egg Capsule of (a Chimera, (b) Fig. 206.—Demersal Ova of a Shore Fish (Gobius Minutus)in an Empty Shell. examined, so as to allow them to attain as far aspossible their normal size after distension on contactwith water. Pelagic eggs, if not obtained direct from the parentand artificially fertilized, may very often be foundamong the gatherings of tow nets. When obtained,they may be kept alive for a long period, and theirdevelopment and hatching watched if the
. Science of the sea. An elementary handbook of practical oceanography for travellers, sailors, and yachtsmen. Fig. 205.—Horny Egg Capsule of (a Chimera, (b) Fig. 206.—Demersal Ova of a Shore Fish (Gobius Minutus)in an Empty Shell. examined, so as to allow them to attain as far aspossible their normal size after distension on contactwith water. Pelagic eggs, if not obtained direct from the parentand artificially fertilized, may very often be foundamong the gatherings of tow nets. When obtained,they may be kept alive for a long period, and theirdevelopment and hatching watched if they are kept 318 FISHES AND FISHING in jars of clean sea water of the proper salinity andtemperature, occasionally changed. They are, how-ever, very susceptible to sudden changes of salinity ortemperature, and care must be taken not suddenly tochange them from chilly and saline water of the opensea to the warmer and fresher water of a harbour ;such errors and consequent disappointment can gener-ally be guarded against by the use of a little care. Demersal eggs are occasionally laid either loose orin adhering masses on the sea bottom, and left tohatch (as in the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectocean, bookyear1912
