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Effect of salinity, temperature and oxygen partial pressure on the respiratory metabolism of Panulirus polyphagus (Herbst)

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Relation http://eprints.cmfri.org.in/372/
 
Title Effect of salinity, temperature and oxygen partial
pressure on the respiratory metabolism of
Panulirus polyphagus (Herbst)
 
Creator Mohamad Kasim, H
 
Subject Marine Environment
Lobsters
 
Description The lethal oxygen levels, time to death, total oxygen consumed and the
metabolic rates of Panulirus polyphagus (Herbst) are estimated at different salinities,
temperatures and oxygen partial pressures after acclimating the lobsters to
17, 32, 39 and 50 ppt at ambient temperatures 22.5, 22.1, 28.1 and 20.1°C, respectively.
The incipient lethal salinities are obtained graphically from lethal oxygen
levels and time to death at different salinities. The metabolic rate is uniformly
high within oxygen independent zone of higher pOj and, in oxygen dependent
zone, it is curtailed drastically. Subsequently, the low oxygen partial pressure
becomes lethal. As a means of compensation, the metabolic rate in this species
decreases at extreme salinities and tends to increase at intermediary salinities. The
influence of salinity acclimation and temperature on the metabolic rate is evident.
It is suggested that factors other than salinity gradient may also be sought in order
to explain the metabolic pattern of this species.
 
Publisher CMFRI/ICAR
 
Date 1986
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/372/1/Article_08.pdf
Mohamad Kasim, H (1986) Effect of salinity, temperature and oxygen partial pressure on the respiratory metabolism of Panulirus polyphagus (Herbst). Indian Journal of Fisheries, 33 (1). pp. 66-75.