General Ichthyology
J. S. Datta Munshi
Gebundenes Buch

General Ichthyology

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The book on "General Ichthyology" deals with air-breathing fishes which have evolved on several occasions. Evolution of the first bony fishes during the late Silurian and Devonian period produced two new features, lobe fins and the lung fishes. Animals inhabiting the water/air interface show many morphological and physiological adaptations designed with different types of function in that unique environments. In the present age there are new challenges. These include climatic change and contamination of the environment by anthropogenic activities. The subject matter has been delineated in 13 (...