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Moreton Bay and Catchment (Page 1)

Moreton Bay and Catchment

Tibbetts IR, Narelle JH and Dennison WC (Editors) ·
1 December 1998

This book is the proceedings of the Moreton Bay and Catchment conference. It is divided into nine major sections covering the environmental history of the region, geology and geomorphology, catchment rivers and lakes, water quality, marine plants, marine animals, corals, flood effects and management options. The conference was preceded by a relatively small flood, which served as an opportunity to study the impact of flood events on Moreton Bay.

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In situ seagrass photosynthesis measured using a submersible, pulse-amplitude modulated fluorometer (Page 1)

In situ seagrass photosynthesis measured using a submersible, pulse-amplitude modulated fluorometer

Ralph PJ, Gademann R, and Dennison WC ·
1998

Assessments of photosynthetic activity in marine plants can now be made in situ using a newly developed, submersible, pulse-amplitude modulated (PAM) fluorometer: Diving-PAM. PAM fluorometry provides a measure of chlorophyll a fluorescence using rapid-light curves in which the electron-transport rate can be determined for plants exposed to ambient light conditions. This technique was used to compare the photosynthetic responses of seagrasses near Rottnest Island, Western Australia.

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Photosynthetic capacity in coral reef systems: Investigations into ecological applications for the underwater PAM fluorometer (Page 1)

Photosynthetic capacity in coral reef systems: Investigations into ecological applications for the underwater PAM fluorometer

Jones AB and Dennison WC ·
1998

A submersible pulse amplitude modulated (PAM) fluorometer was used to determine the effects of desiccation, ultraviolet radiation, changes in solar radiation and nutrient availability on the photosynthetic apparatus of a variety of marine plants (zooxanthellae, benthic microalgae and macroalgae) at Heron Island, Great Barrier Reef, Australia. The PAM measures photosynthesis as irradiance-dependent photosystem II electron transport.

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