Pakistan Journal of Biological Sciences1028-88801812-5735Asian Network for Scientific Information10.3923/pjbs.2009.1511.1515Schizothorax curvifrons Heckel: A SEM Study]]>MirI. H.ChannaA. 1220091223Using the scanning electron microscope, the gills of Schizothorax curvifrons have been studied after carrying out their primary fixation in 2.5% glutaraldehyde in 0.1 M sodiumcacodylate buffer (pH 7.3) for 24 h at 0-4°C and secondary fixation in 1-4% osmiumtetraoxide in 0.1 M sodiumcacodylate buffer (pH 7.3) for 1-2 h at 0-4°C. The gills are observed to comprise of gill arch, gill rakers having minute projections on their inner sides and gill filaments. The filaments originating from the gill arch are in a linear fashion and equidistant from each other, bearing secondary lamellae on both sides of the filament axis and each lamellae running parallel to the adjacent lamellae. The filament epithelium is found to be equipped with pavement cells, mucous cells and chloride cells. The pavement cells have smooth surface with sparse and irregular microridges defining their cell limits. The mucous cells are mainly found on the leading and trailing edges of the filament and the chloride cells are located close to the onset of secondary lamellae. The possible roles of these structures and cells in relation to respiration, water flow and feeding are discussed, setting thereby a platform for further studies in relation to pathology, pollution and stress conditions in aquaculture, natural and polluted environments.]]>Arellano, J.M., V. Storch and C. Sarasquete,2004Solea senegalensis.]]>20452460Boyd, R.B., A.L. DeVries, J.T. Eastman and G.G. Pietra,1980213361367Carmona, R., M. Garcia-Gallego, A. Sanz, A. Domezain and M.V. Ostos-Garrido,2004Acipenser naccarii: Ultrastructural modifications in seawater-acclimated specimens.]]>64553566Diaz, A.O., A.M. Garcia, C.V. Devincenti and A.L. Goldemberg,2001Micropogonias furnieri gills: Histochemistry and ultrastructure.]]>30135139Evans, D.H., P.M. Piermarini and K.P. Choe,20058597177Fernandes, M.N. and S.A.P. Martins,2001Hypostomus plecostomus (Loricariidae).]]>616978Fletcher, T.C.,197832681689Franklin, C.E. and W. Davison,1989Oncorhynchus nerka.]]>34803804Handy, R.D., F.B. Eddy and G. Romain,1989In vitro evidence for the iono regulation- role of rainbow trout mucus in acid/aluminum and zinc toxicity.]]>35737747Hughes, G.M.,196645177195Hughes, G.M. and D.E. Wright,1970104478493Karnaky, K.J.,1986Fundulus heteroclitusand other teleosts.]]>26209244Kendall, M.W. and J.E. Dale,1979Salmo gairdneri) gill.]]>3610721079Kudo, S. and N. Kimura,198430393403Laurent, P. and S. Dunel,1980238147159Laurent, P.,19841984pp: 73-183pp: 73-183Lewis, S.V.,1979Clarias batrachus L.]]>15381384Morgan, M. and P.W. Tovell,1973Salmo gairdneri (Rich.).]]>142147162Moron, S.E. and M.N. Fernandes,1996Hoplias malabaricus gill epithelia.]]>49357362Ojha, J., A.K. Mishra and J.S.D. Munshi,198733388393Olson, K.R. and P.O. Fromm,1973Salmo gairdneri).]]>143439449