First published online June 29, 2007
Journal of Experimental Biology 210, 2403-2409 (2007)
Published by The Company of Biologists 2007
doi: 10.1242/jeb.000281
Gill remodeling in fish a new fashion or an ancient secret?
Göran E. Nilsson
Physiology Programme, Department of Molecular Biosciences, University
of Oslo, PO Box 1041, N-0316 Oslo, Norway

View larger version (139K):
[in this window]
[in a new window]
|
Fig. 2. (A,B) Light micrographs of gills from crucian carp kept in normoxic (A) or
hypoxic (B) water at 8°C. Note that the lamellae are present in both
conditions but that a regression of the interlamellar cell mass (ILCM) during
hypoxia makes the lamellae protrude, thereby greatly increasing the
respiratory surface area. A filament arteriole (with blood clots) is seen
running vertically in the center of each micrograph. Scale bar, 50 µm (from
Sollid et al., 2003 ).
|
|

View larger version (113K):
[in this window]
[in a new window]
|
Fig. 3. (A,B) Scanning electron micrographs of gill filaments from goldfish kept in
normoxic water at 15°C (A) and 7.5°C (B). Scale bars, 50 µm (from
Sollid et al., 2005a ).
|
|

View larger version (66K):
[in this window]
[in a new window]
|
Fig. 4. (AC) Light micrographs of gills from the mangrove killifish kept in
water (A), in air for 1 week (B), and in water for 1 week after air exposure
(all at 25°C). Note that the lamellae are present both in water and in
air, but that an interlamellar cell mass fills up the space between the
lamellae during air exposure. Scale bar, 40 µm (from
Ong et al., 2007 ).
|
|
© The Company of Biologists Ltd 2007