{"product_id":"computation-and-interpretation-of-biological-statistics-of-fish-populations-bulletin-of-the-fisheries-research-board-of-canada","title":"Computation and interpretation of biological statistics of fish populations (Bulletin of the Fisheries Research Board of Canada)","description":"From the point of view of fishery management, information from computations of the kinds described in this Bulletin provide only a part of the basic information upon which policy can be based. Sometimes, to be sure, they can provide the greater part of the necessary information. This is particularly true where several species are possible occupants of and competitors for an important environment, and their relative abundance may vary with the intensity for the fishery or with physical changes. This Bulletin is of course not intended as a complete text book for fishery biologists. Methods of measuring fish, determining their age, marking, tagging, collecting, and tabulating catch statistics--all these are mentioned only incidentally, although they provide the data from which the vital statistics of a stock must be estimated.\u003cbr\u003eASIN: 0662014405\u003cbr\u003eVSKU: BVV.0662014405.A\u003cbr\u003eCondition: Acceptable\u003cbr\u003eAuthor\/Artist:W.E. Ricker\u003cbr\u003eBinding: Hardcover\u003cbr\u003e\u003cb\u003eNote:\u003c\/b\u003e Any images shown are stock photographs and product may differ from what is shown.  \u003cbr\u003e\u003cb\u003eCondition Notes\u003c\/b\u003e: The item is very worn but is perfectly usable. Signs of wear can include aesthetic issues such as scratches, dents, worn and creased covers, folded page corners and minor liquid stains. All pages and the cover are intact, but the dust cover may be missing. Pages may include moderate to heavy amount of notes and highlighting, but the text is not obscured or unreadable. Page edges may have foxing  age related spots and browning . May NOT include discs, access code or other supplemental materials.  \u003cbr\u003e","brand":"Blue Vase Books","offers":[{"title":"Default Title","offer_id":43323041349693,"sku":"BVV.0662014405.A","price":29.08,"currency_code":"USD","in_stock":true}],"url":"https:\/\/www.bluevasebooks.com\/products\/computation-and-interpretation-of-biological-statistics-of-fish-populations-bulletin-of-the-fisheries-research-board-of-canada","provider":"Blue Vase Books","version":"1.0","type":"link"}