Fish hatching

Paperback | February 7, 2012

byFrancis Trevelyan Buckland

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1863 Excerpt: ... CHAPTER IV. ON THE PROTECTION OF THE EGGS, AND HATCHING THEM BY ARTIFICIAL MEANS. Thus, then, Gentlemen and Ladies, I have endeavoured to demonstrate to you the immense difficulties which surround on all sides the eggs of salmon, trout, and other fish,-when deposited in their natural state by the parent fish. I wish now to show you how these difficulties are to be obviated, and how human care can be brought to bear upon the eggs of these really valuable animals. Instead, therefore, of allowing the ova to be deposited in the natural nest, we catch ARTIFICIAL NESTS. 83 the fish in a net, we take the eggs from her, we treat them in the manner which was first discovered by two poor fishermen (honour to their memory) and afterwards developed by M. Coste, professor of embryology at Paris, and we place them in an artificial nest, such as I will endeavour to explain to you. In the first place, you must provide an artificial nest, and, in the second, an artificial mother. Now the former consists of gravel placed in a narrow box, either of wood, earthenware, or zinc; the latter consists of a stream of shallow water, which shall be running day and night. For hatching on a large scale I recommend you to procure boxes such as this--a model of those used by Mr. Ashworth. It is made of elm, oak, or deal, and is six feet long, eight inches deep, twelve inches wide, an enlarged mignonette box in fact. You must recollect the two requisites--a running stream and shallow water. You must fix the box according to your locality. You can place it either in a narrow, fast-running ditch which you know will never fail you, or, better still, place it near a spring where you can regulate the flow of water by means of hatches, large or small. You must guard both the entrance and the exi...

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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated.1863 Excerpt: ... CHAPTER IV. ON THE PROTECTION OF THE EGGS, AND HATCHING THEM BY ARTIFICIAL MEANS. Thus, then, Gentlemen and Ladies, I have endea...

Format:PaperbackDimensions:40 pages, 9.69 × 7.44 × 0.08 inPublished:February 7, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217721796

ISBN - 13:9780217721790

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