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Title: Comparative physiological ecology of some mud-burrowing shrimps (Crustacea: Decapoda: Thalassinidea)
Author: Astall, Christopher Mark
Awarding Body: University of Glasgow
Current Institution: University of Glasgow
Date of Award: 1993
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Recordings from burrows of the filter feeding upogebiid mud-shrimps U stellata and U deltaura, constructed in laboratory aquaria, showed a gradient of oxygen tension with depth. The burrow water at the deeper parts of the burrow was often severely hypoxic. The water pH also decreased through the burrow, reflecting an increase in the PCO2 with depth. Long term changes in the burrow water PO2 are dependent upon a number of factors of which burrow irrigation is the most important. Irrigation not only provides a feeding current but also serves to replenish the oxygen-depleted burrow water. The degree of exchange of burrow water is dependent both on the amount of time spent irrigating and the rate of irrigation. Large temporal fluxes in oxygen tension occur within the burrow. These fluxes in PO2 are dependent upon the irrigatory behaviour, respiration of the occupant and of the meiofauna and microflora associated with the burrow wall and upon the diffusion of oxygen through the burrow system.
Supervisor: Not available Sponsor: Not available
Qualification Name: Thesis (Ph.D.) Qualification Level: Doctoral
EThOS ID:  DOI: Not available