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Emergence Fish Amphibia:
The Phanerozoic eon is divided into three epochs. The Paleozoic, age of ancient life, is marked by dominance of the invertebrate groups and the emergence fish Amphibia of fish and Amphibia. The Mesozoic, the middle period, is that in which life on the land was dominated by the reptiles. The Cenozoic is marked by the dominance of mam¬mals, and the gradual development of modern floras and faunas. Whether the present time is considered as a part of the Cenozoic or as the Recent epoch, is largely an academic matter.Reptiles, Amphibia and Fishes.—A number of snakes and lizards. Of lizards there are Igua-nidae, Gcckonidae, Scincidae and Zonuridae. Of snakes there are Calamariidae, Calubridae and Crotalidae. Among amphibia are Siredon (sal¬amander) ; one of the Proteidae is peculiar. Abundance of fish is found in the glacial streams and lakes, largely rainbow trout (Salmo irideus) weighing as high as six pounds and fine eat¬ing.
See Also Aquaculture— Fish Farming—and:
History and Relationship to Agriculture and aquaculture— fish farming—and-s. Aquaculture has ancient origins. A Chinese mal of the 5th century B. c. describes early culture practices, and temple friezes dating i the Middle Kingdom (2052-1786 B.C.) Igypt depict what may have been even earlier mpts at intensive aquaculture— fish farming—and rearing. Oysters are wn to have been cultivated since at least lan times. quaculture is related to the raising of domes-ted land animals. In both endeavors, con-is exercised over various phases of the life e of the cultured species. In aquaculture, ever, the control is seldom as complete as in raising of land animals. Aquaculture is also :ed to aquaculture— fish farming—anderies in that the same organisms produced by both endeavors; aquaculture— fish farming—andermen, how-, own only the tools of capture, while in iculture, the stock as well as the production hinery is owned or leased.Aquaculture is becoming increasingly impor-as the world's population increases and the ilem of food shortages presents itself. Since icultural practices produce mainly animal sins and since this is the nutritional staple lortest supply in developing countries, con-•able hope is being placed on aquaculture as ?ans of alleviating food shortages, n a typical year in the late 1960's, world ries produced about 60 million metric tons of aquaculture— fish farming—and, mollusks, and crustaceans. These food products made up about one fifth of man's total intake of animal protein. Of the above tonnage, about 4(/c, or 2Vz million metric tons, came from aquaculture; Communist China reportedly raised more than half of this amount.
On The Other Hand See Oily Fish:
WHITE FISH—use in fish cakes, fish pie or as a fish salad. SHELL FISH—use as potted fish, in fish salads, add to sauces. SMOKED FISH—haddock—put into a Kedgeree, add to potato for fish cakes. OILY FISH (kippers in particular)—pound for a pate to use as a sandwich filling.Serve steamed or poached white fish to young children or elderly people, for this is the most easily digested fish and form of cooking; sprats (an oily fish), however, are ideal to give children, for they are very nutritious yet easily digested. Do not serve white fish in a white or creamy sauce before a fricassee of chicken or veal-choose shell fish or oily fish. Serve them cold or cook by frying, grilling, or serve with a piquant sauce to make a change in colour and taste. If having a main course that is fried, avoid a very rich fish dish.
