Morphological and Physiological Research on Fish

This Special Issue is dedicated to the application of morphological and physiological studies carried out on fish. Fish represent the largest and most diverse group of vertebrates, and there are various uses of these animals in both research and industry. On the one hand, aquaculture is one of the world's most efficient and sustainable methods to produce high-quality protein. On the other hand, in the last decades, fish have emerged as an interesting model system in biomedical research, due to the close similarities they have with mammals, in terms of various basic mechanisms. Morphological studies provide us with context for comprehension of the spatial organization and relationship between physiological and biochemical data, and the molecular machinery that is promptly being explained through molecular techniques directed at the genome, transcriptome and proteome. For this reason, new morphological and physiological studies of fish would broaden the knowledge pertaining to these animals, with remarkable and interesting applicability both in basic and applied research. This Special Issue will attempt to provide information regarding the relevance of morphological studies and of their relationships with functions in fish.