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Temporal variation of the biomass and structure of Caulerpa prolifera (Forsskal) Lamouroux meadows in the Mar Menor lagoon (SE Spain).

Authors: Terrados, Jorge; Ros, Joandomènec, 1946-;

Temporal variation of the biomass and structure of Caulerpa prolifera (Forsskal) Lamouroux meadows in the Mar Menor lagoon (SE Spain).

Abstract

[ES] Se describe la variación temporal de la estructura, biomasa y contenido de carbono, nitrógeno y fósforo de la pradera de Caularpa prolifera en el Mar Menor (SE de España) desde noviembre de 1986 a marzo de 1989. La pradera muestra un ciclo anual unimodal de desarrollo vegetativo con valores máximos de biomasa (168-173 g d.w. m-2) durante el verano y el otoño, y mínimos (0-57 g d.w. m-2) durante el invierno y principios de la primavera. Los valores del índice de área foliar oscilaron entre 0.37-0.40 m2 m-2 en enero-febrero y 2.60-7.06 m2 m-2 en julio. Los cambios temporales en la biomasa y estructura de la pradera se deben principalmente a la estacionalidad en el desarrollo vegetativo de los frondes secundarios. El contenido de nitrógeno del talo mostró una pauta anual bimodal con valores mayores en primavera y otoño (>2.5% peso seco) que en verano e invierno (<2.5% p.s.), mientras que los contenidos de carbono (32.5-34.8% p.s.) y fósforo (0.065-0.069% p.s.) no mostraron una pauta temporal definida.

[EN] The temporal changes in the structure, biomass and C, N and P content of meadows of Caulerpa prolifera (Forsskal) Lamouroux in the Mar Menor coastal lagoon (SE Spain) are described over the period from November 1986 to March 1989. C. prolifera meadows showed a unimodal pattern of vegetative development with maximum biomass values (168-173 g d.w. m-2) reached in summer and maintained during autumn, and minimum biomass values (0-57 g d.w. m-2) during late winter and early spring. Leaf area index values changed between 0.37-0.40 m2 m-2 in January-February and 2.60-7.06 m2 m-2 in July. The seasonality in the biomass and structure of the meadow was mainly related to the vegetative development of secondary fronts. Carbon and phosphorus content of the thallus (32.5-34.8% d.w. and 0.065-0.069% d.w., respectively) had no seasonality , but nitrogen content showed a bimodal annual pattern with higher values in spring and fall (>2.5% d.w.) than in summer and winter (<2.5% d.w.).

This work was supported by a fellowship of the Pan de Formación de Personal Investigador, Ministerio de Educación y Ciencia, to J. Terrados.

8 pages, 7 figures.

Peer reviewed

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Spain
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Keywords

Meadow structure, Caulerpa prolifera, SE Spain, Mar Menor, Cloròfits, Biomasa, Llacunes, Biomassa, Mar Menor (Murcia), Coastal lagoons, Estructura, SE España, Green algae, Biomass, Lagunas costeras, Mar Menor (Múrcia), Lagoons

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popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
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