Over het archief
Het OWA, het open archief van het Waterbouwkundig Laboratorium heeft tot doel alle vrij toegankelijke onderzoeksresultaten van dit instituut in digitale vorm aan te bieden. Op die manier wil het de zichtbaarheid, verspreiding en gebruik van deze onderzoeksresultaten, alsook de wetenschappelijke communicatie maximaal bevorderen.
Dit archief wordt uitgebouwd en beheerd volgens de principes van de Open Access Movement, en het daaruit ontstane Open Archives Initiative.
Basisinformatie over ‘Open Access to scholarly information'.
| one publication added to basket [261872] |
The anaerobic endproduct lactate has a behavioural and metabolic signalling function in the shore crab
De Wachter, B.; Sartoris, F.J.; Pörtner, H.O. (1997). The anaerobic endproduct lactate has a behavioural and metabolic signalling function in the shore crab. J. Exp. Biol. 200(6): 1015-1024
In: The Journal of Experimental Biology. Cambridge University Press: London. ISSN 0022-0949; e-ISSN 1477-9145, meer
|  |
| Trefwoorden |
Carcinus maenas (Linnaeus, 1758) [WoRMS]; Crustacea [WoRMS]
|
| Author keywords |
Crustacea; emergency response; lactate; metabolic signal molecule;preferred temperature; oxygen consumption; biogenic amines; crab;Carcinus maenas; behavioural hypothermia |
| Auteurs | | Top |
- De Wachter, B., meer
- Sartoris, F.J.
- Pörtner, H.O.
|
|
|
| Abstract |
This study presents the first evidence that, in invertebrates, the anaerobic endproduct lactate has an alarm signal function and induces metabolic and behavioural responses as in the anuran Bufo marinus. In support of this function, behavioural hypothermia was demonstrated in the shore crab Carcinus maenas. The animals moved to a cooler environment when exposed to hypoxic conditions. A decrease in preferred temperature of the same magnitude was also found when normoxic animals were injected with an iso-osmotic lactate solution resulting in a haemolymph concentration of approximately 12 mmoll(-1). Under normoxic (P-o2=>18kPa) and moderately hypoxic conditions (P-o2=12kPa), injection of this lactate solution also caused a significant increase in the rate of oxygen consumption (100 and 50% respectively). The increase in the rate of oxygen consumption was smaller and delayed, but lasted longer, under hypoxic conditions compared with normoxic conditions, Low but significant correlations between levels of lactate and levels of adrenaline, octopamine and tryptophan suggest the involvement of biogenic amines in the mediation of the signal. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
