Gross structure and dimensions of the gill in an air-breathing estuarine goby, Pseudapocryptes lanceolatus
1989
Yadav, A.N. (Bihar Univ. (India)) | Singh, B.R.
The gills of the air-breathing estuarine goby, Pseudapocryptes lanceolatus, are reduced owing to the development of a specialized organ of O2 uptake from air. In the first gill arch, the filaments of the outer hemibranch are reduced to nearly one-half in comparison to those of its inner hemibranch. A smaller number of secondary lamellae per mm (27.6) occurring on one side of the gill filament reduces the gill surface area. A bilogarithmic plot of the gill area and the body weight indicates a curve with two significantly different components, one (b=0.924) related to the fish weighing up to 6 g and the other (b=0.405) to the fish weighing 8 g and above
显示更多 [+] 显示较少 [-]