Comparative Physiological Ecology of Some Mud-Burrowing Shrimps (Crustacea: Decapoda: Thalassinidea)

Astall, Christopher Mark (1993) Comparative Physiological Ecology of Some Mud-Burrowing Shrimps (Crustacea: Decapoda: Thalassinidea). PhD thesis, University of Glasgow.

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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.

Item Type: Thesis (PhD)
Qualification Level: Doctoral
Additional Information: Adviser: R S Phillips
Keywords: Zoology, Ecology
Date of Award: 1993
Depositing User: Enlighten Team
Unique ID: glathesis:1993-74561
Copyright: Copyright of this thesis is held by the author.
Date Deposited: 27 Sep 2019 17:46
Last Modified: 27 Sep 2019 17:46

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