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Oxygen uptake through gills and skin in relation to body weight of an air‐breathing siluroid fish, Saccobranchus (=Heteropneustes) fossilis
Author(s) -
Munshi J. S. Datta,
Pandey B. N.,
Pandey P. K.,
Ojha J.
Publication year - 1978
Publication title -
journal of zoology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.915
H-Index - 96
eISSN - 1469-7998
pISSN - 0952-8369
DOI - 10.1111/j.1469-7998.1978.tb03273.x
Subject(s) - gill , juvenile , heteropneustes fossilis , biology , fish <actinopterygii> , oxygen , anatomy , zoology , body weight , ecology , endocrinology , chemistry , fishery , catfish , organic chemistry
Oxygen uptake through gills and skin has been measured in juvenile and adult Saccobranchus fossilis and its relationship represented by the equation Vo 2 = aW b . When air‐breathing is allowed the O 2 uptake via the gills and skin together increases by powers of 1 ‐084, 0–986 and 1–328 in juvenile, adult and juvenile+adult respectively. When air‐breathing is prevented the slope (b) for O 2 uptake via the gills appear to be less in juveniles (0–765) than in adults (0–784) and juveniles+adults together (0–814). Under the same experimental condition, the slope for O 2 uptake via the gills+skin is also less in juveniles (0–478) than in adults (0–799) and juveniles+adults (0–755). Further decrease in the exponent value is found for the oxygen uptake of skin in relation to body weight under surfacing‐prevented conditions ( b = 0–542). Different exponent values for juvenile and adult fishes may be due to their different growth pattern and physiology.