Primary production, stocks and fluxes in the Mediterranean seagrass Posidonia oceanica

Primary production in a Posidonia oceanica seagrass meadow (blades, sheaths and rhizomes) was estimated at 3 sites in Lacco Ameno Bay (Ischia, Italy). Foliar primary production ranged from 51 to 142 g dry wt m2 yr−1 for sheaths and 167 to 530 g dry wt m2 yr−1 for blades. Rhizome production ranged fr...

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Bibliographic Details
Published in:Marine ecology. Progress series (Halstenbek) 1994, Vol.106 (1/2), p.139-146
Main Authors: Pergent, Gérard, Romero, Javier, Pergent-Martini, Christine, Mateo, Miguel-Angel, Boudouresque, Charles-François
Format: Article
Language:English
Subjects:
Carbon
Ecosystems
Leaves
Marinas
Marine
Marine ecosystems
Meadows
Plant litter
Posidonia oceanica
Primary productivity
Production estimates
Rhizomes
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Summary:Primary production in a Posidonia oceanica seagrass meadow (blades, sheaths and rhizomes) was estimated at 3 sites in Lacco Ameno Bay (Ischia, Italy). Foliar primary production ranged from 51 to 142 g dry wt m2 yr−1 for sheaths and 167 to 530 g dry wt m2 yr−1 for blades. Rhizome production ranged from 20 to 42 g dry wt m2 yr−1. The largest part of primary production was degraded in situ in the litter (42%); the remainder was either exported to other ecosystems (29%) or buried in the matte (29%). The loss of matter due to burial of sheaths and rhizomes in the matte, a phenomenon that is unique to Posidonia oceanica meadows, is considerable.
ISSN:0171-8630
1616-1599
DOI:10.3354/meps106139