Open AccessÁrea mitocondrial relativa nos epitélios branquial e renal do baiacu estuarino tropical <i>Sphoeroides testudineus </i>após aclimatação a água do mar isosmótica
Author(s) -
Viviane Prodocimo,
Carolina A. Freire
Publication year - 2006
Publication title -
acta biológica paranaense
Language(s) - English
Resource type - Journals
eISSN - 2236-1472
pISSN - 0301-2123
DOI - 10.5380/abpr.v35i0.6867
Subject(s) - gill , ultrastructure , biology , anatomy , fish <actinopterygii> , fishery
The gills of teleost fishes are responsible both for gas exchangein respiration and salt transport in osmoregulation (JOBLING, 1995; ZADUNAISKY, 1996; PERRY, 1997; VAN DER HEIJDEN et al., 1997; EVANS et al., 1999; EVANS et al., 2005). In marine teleosts the gill epithelium secretes salt mainly through chloride cells (JOBLING, 1995; ZADUNAISKY, 1996; PERRY, 1997; VAN DER HEIJDEN et al., 1997; FERNANDES et al., 1998; EVANS et al., 2005). These cells are typically located between secondary lamellae at their insertion in the gill filament (inter-lamellar region) or in the gill filament itself (LAURENT & DUNEL, 1980; PERRY, 1997; FERNANDES et al., 1998; EVANS et al., 2005). These cells are rounded, display abundant mitochondria, a tubular system of endomembranes, sub-apical vesicles, and extensive intercellular junctional complexes (LAURENT & DUNEL, 1980; JOBLING, 1995; ZADUNAISKY, 1996; PERRy, 1997; EVANS et al., 2005).