Titlebook: Cyprinid Fishes; Systematics, biology Ian J. Winfield,Joseph S. Nelson Book 1991 Ian J. Winfield and Joseph S. Nelson 1991 adaptation.aquac

evanescent

dominant

Digestion, including plants. Despite the diversity of cyprinid feeding habits, from piscivory to herbivory, their intestinal tract varies only in length and is comparatively simple. The first one-third of the intestine, the intestinal bulb, is the main site of digestion and absorption, which can be divided in

烦人

Growth and production,ts, although their presence in Australasia results from introductions by Man. The family’s ubiquity stems in part from the wide range in growth rate and ultimate size shown by different species, often in the same river or lake. This feature, allied to the range of reproductive requirements (Chapter

synovitis

新鲜

Social behaviour, homing and migration,s or to pick out discrete behavioural acts. This impression is partially correct, for good reason, but it also obscures the behavioural complexity that is present. Many cyprinids are shoaling prey fish. Their confusing motion and standardized appearance are important elements in their defence agains

木讷

Neonatal

Herbert E. Covington III,Klaus A. Miczek Pliocene epochs is sparse or unknown. Since cyprinids dominate today’s freshwater fish communities, it is difficult to believe that they have done so for only the last 10–20 million years (m. y) in areas such as western North America, Europe, Africa and India. The Asian-Oriental region may differ, although many more fossils are needed.

名字

Ige326

PET-scan

The fossil record of the Cyprinidae, Pliocene epochs is sparse or unknown. Since cyprinids dominate today’s freshwater fish communities, it is difficult to believe that they have done so for only the last 10–20 million years (m. y) in areas such as western North America, Europe, Africa and India. The Asian-Oriental region may differ, although many more fossils are needed.