Physiology and behaviour of free-swimming Atlantic cod (Gadus morhua) facing fluctuating temperature conditions
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چکیده
منابع مشابه
Physiology and behaviour of free-swimming Atlantic cod (Gadus morhua) facing fluctuating temperature conditions
Atlantic cod (Gadus morhua L.), acclimated to 5 °C, were equipped with ultrasonic transmitters which allowed the continuous monitoring of their vertical movements and heart rate. Fish were then placed in a 125 m3 tower tank in which the various thermal conditions they encounter in their natural environment were reproduced. Physiological and behavioural responses of cod were followed in para...
متن کاملPhysiology and behaviour of free-swimming Atlantic cod (Gadus morhua) facing fluctuating salinity and oxygenation conditions
1. Atlantic cod (Gadus morhua L.) acclimated to a temperature of 5 °C and 30 salinity were equipped with ultrasonic transmitters which allowed continuous monitoring of their heart rate and their position in the water column. Fish were placed in a 125 m3 tower tank which permitted various environmentally relevant modifications of the salinity and oxygenation conditions. Cod physiological and...
متن کاملThe response of Atlantic cod, Gadus morhua, to progressive hypoxia: fish swimming speed and physiological stress
Atlantic cod, Gadus morhua, were exposed to a progressive stepwise decline in water oxygen pressure ð19:9; 13:2; 10:5; 8:4; 6:2 and 4:3 kPa PO2Þ: Fish swimming speed and indicators of primary and secondary stress (e.g. blood cortisol and lactate) were measured to assess whether a severe shift in physiological homeostasis (i.e. stress) preceded any change in behaviour or vice versa. Swimming spe...
متن کاملSpontaneous Swimming Activity of Atlantic Cod Gadus Morhua Exposed to Graded Hypoxia at Three Temperatures
The spontaneous swimming activity of Atlantic cod Gadus morhua was investigated at graded levels of hypoxia at three temperatures (5, 10 and 15 °C) by using a computerized system monitoring animal activity. The fish were tested individually, and swimming distance was used as a measure of activity. No significant effect of temperature on swimming distance in normoxic water was found. At all ...
متن کاملAuthentication of Atlantic cod (Gadus morhua) using real time PCR.
This work describes the development of a real-time polymerase chain reaction (RT-PCR) system for the detection and identification of Atlantic cod (Gadus morhua). Among the advantages of this technique, it is worth highlighting that this is reliable in terms of specificity and sensitivity. The TaqMan real-time PCR is the simplest, fastest testing process and has the highest potential for automat...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 1995
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.198.1.49