Photosynthesis and respiration of the zooxanthellae in hermatypic corals habitated on different depths of the Gulf of Filat

V. A. Lelëtkin; E. A. Titlyanov; Z. Dubinsky

Photosynthesis and respiration of the zooxanthellae in hermatypic corals habitated on different depths of the Gulf of Filat

V. A. Lelëtkin, E. A. Titlyanov, Z. Dubinsky

Department of Geography

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6 Scopus citations

Abstract

Some morphological and functional characteristics of corals Stylophora pistillata and Acropora sp. growing in Red Sea on depths 2, 20, and 40 m, such as polyp number per surface colony, zooxanthellae cell diameter, density of zooxanthellae, photosynthetic (P) and respiration (R) rates were studied in dependence on irradiance. The influence of stress (damage of animal tissue portion) on O₂-exchange of polyps was investigated, and an increase in R (from 10 to 50 %) was found. R of zooxanthellae cells in native corals was determined by three methods: from O₂ consumption by isolated algal cells; using direct measurements of respiration of coral fragments with different zooxanthellae density; and from the ratio of algae and animal biomass per colony surface. Comparative analysis showed that R of zooxanthellae from large depths was about 30 % of the total polyp R.

Original language	English
Pages (from-to)	481-490
Number of pages	10
Journal	Photosynthetica
Volume	32
Issue number	4
State	Published - 1996

Keywords

Acropora sp.
O exchange
Stylophora pistillata
biomass
cell density and diameter
polyp

Cite this

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title = "Photosynthesis and respiration of the zooxanthellae in hermatypic corals habitated on different depths of the Gulf of Filat",

abstract = "Some morphological and functional characteristics of corals Stylophora pistillata and Acropora sp. growing in Red Sea on depths 2, 20, and 40 m, such as polyp number per surface colony, zooxanthellae cell diameter, density of zooxanthellae, photosynthetic (P) and respiration (R) rates were studied in dependence on irradiance. The influence of stress (damage of animal tissue portion) on O2-exchange of polyps was investigated, and an increase in R (from 10 to 50 %) was found. R of zooxanthellae cells in native corals was determined by three methods: from O2 consumption by isolated algal cells; using direct measurements of respiration of coral fragments with different zooxanthellae density; and from the ratio of algae and animal biomass per colony surface. Comparative analysis showed that R of zooxanthellae from large depths was about 30 % of the total polyp R.",

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AU - Titlyanov, E. A.

AU - Dubinsky, Z.

PY - 1996

Y1 - 1996

N2 - Some morphological and functional characteristics of corals Stylophora pistillata and Acropora sp. growing in Red Sea on depths 2, 20, and 40 m, such as polyp number per surface colony, zooxanthellae cell diameter, density of zooxanthellae, photosynthetic (P) and respiration (R) rates were studied in dependence on irradiance. The influence of stress (damage of animal tissue portion) on O2-exchange of polyps was investigated, and an increase in R (from 10 to 50 %) was found. R of zooxanthellae cells in native corals was determined by three methods: from O2 consumption by isolated algal cells; using direct measurements of respiration of coral fragments with different zooxanthellae density; and from the ratio of algae and animal biomass per colony surface. Comparative analysis showed that R of zooxanthellae from large depths was about 30 % of the total polyp R.

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KW - Acropora sp.

KW - O exchange

KW - Stylophora pistillata

KW - biomass

KW - cell density and diameter

KW - polyp

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Photosynthesis and respiration of the zooxanthellae in hermatypic corals habitated on different depths of the Gulf of Filat

Abstract

Keywords

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