Title

Growth of the Bryozoan Pentapora Fascialis (Cheilostomata, Ascophora) Around Submarine Freshwater Springs in the Adriatic Sea

Document Type

Article

Publication Date

2006

Department

Earth Sciences

Language

English

Publication Title

Linzer Biologie Beiträge

Abstract

Colony growth, size and mortality of the bryozoan Pentapora fascialis (Cheilostomata, Ascophora) growing in the vicinity of submarine freshwater springs at Grmac (north-eastern Adriatic Sea) have been analysed. Throughout a one year period (June 2002 - June 2003), repeated measurements of length and width of the living and necrotic parts of six colonies tagged with a steel stick were made. Notwithstanding the sharp variability of colony sizes recorded, P. fascialis mainly grew during the colder months (October to March) which coincide with the springs' highest discharge. A mean growth rate of 9.8 cm per year (± 4.0) was estimated. Numerous events of colony necrosis and fragmentation, maybe due to fragility of the carbonate colony, occurred throughout the one year period.

Comments

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