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Sieve Plates and Habitat Adaptation in the Foraminifer Planulina ornata

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Title:Sieve Plates and Habitat Adaptation in the Foraminifer Planulina ornata
Authors:Resig, Johanna M.
Glenn, Craig R.
Date Issued:Jan 2003
Publisher:University of Hawai'i Press
Citation:Resig JM, Glenn CR. 2003. Sieve plates and habitat adaptation in the foraminifer Planulina ornata. Pac Sci 57(1): 103-110.
Abstract:Planulina ornata (d'Orbigny), a coarsely perforate species of foraminifera
having a low trochospiral test, was recovered attached to phosphatic
hardgrounds from the lower oxygen-minimum zone off Peru. Above the base of
individual pores are calcified, perforate sieve plates, the largest so far described.
Structure of the pores suggests a possible association with mitochondria and
respiratory function. These large pores may facilitate extraction of the severely
limited amount of oxygen from the ambient bottom waters at that locale.
Appears in Collections: Pacific Science Volume 57, Number 1, 2003

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