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Comparative-Study on Populations of Zostera-Marina L (Eelgrass) - in-Situ Nitrogen Enrichment and Light Manipulation. / Van Lent, F.; Verschuure, J.M.; Van Veghel, M.L.J.

In: Journal of Experimental Marine Biology and Ecology, Vol. 185, No. 1, 1995, p. 55-76.

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Van Lent, F. ; Verschuure, J.M. ; Van Veghel, M.L.J./ Comparative-Study on Populations of Zostera-Marina L (Eelgrass) - in-Situ Nitrogen Enrichment and Light Manipulation. In: Journal of Experimental Marine Biology and Ecology. 1995 ; Vol. 185, No. 1. pp. 55-76

BibTeX

@article{a0951f1652024e208054a6884f38c77e,
title = "Comparative-Study on Populations of Zostera-Marina L (Eelgrass) - in-Situ Nitrogen Enrichment and Light Manipulation",
abstract = "The combined effects of light and nitrogen availability on population dynamical characteristics (e.g. growth rate, biomass, density, flowering) of a perennial and semi-annual population of Zostera marina L. were experimentally studied in two non-tidal lagoons (Grevelingen and Veerse Meer). Light reduction (approximate to 70{\%}) significantly reduced all population dynamical features measured both populations. Under reduced light uptake of nitrogen occurred by plants of the semi-annual population, but the nutrient could not be used for growth. After enrichment with nitrogen plants of neither population stored nitrogen; the nutrient was immediately used. Light limitation of growth remained undetermined for the semi- annual population, although mean values for biomass and density characteristics doubled at light enhancement (studied in the Veerse Meer only). Nitrogen enrichment had a significantly positive effect on the perennial population; leading to enhanced above-ground relative growth rate, flowering and above-ground biomass. A lower probability of recruitment through generative reproduction (flowering) of the perennial population caused by nitrogen limitation apparently does not become compensated for by a possible higher vegetative production of shoots. Nitrogen limitation is thought to be a concomitant factor in the sharp decline of Z. marina populations since 1985 in the Grevelingen. [KEYWORDS: Flowering; growth; light manipulation; nitrogen enrichment; population dynamics; zostera marina Nutrient enrichment; depth distribution; sediment ammonium; pore water; growth; seagrass; availability; lagoon; beds; bay]",
author = "{Van Lent}, F. and J.M. Verschuure and {Van Veghel}, M.L.J.",
note = "Reporting year: 1995 Metis note: 0757; CEME; RE; file:///L:/Endnotedatabases/NIOOPUB/pdfs/Pdfs1995/VanLent_ea_0757.pdf",
year = "1995",
doi = "10.1016/0022-0981(94)00131-V",
language = "English",
volume = "185",
pages = "55--76",
journal = "Journal of Experimental Marine Biology and Ecology",
issn = "0022-0981",
publisher = "Elsevier",
number = "1",

}

RIS

TY - JOUR

T1 - Comparative-Study on Populations of Zostera-Marina L (Eelgrass) - in-Situ Nitrogen Enrichment and Light Manipulation

AU - Van Lent,F.

AU - Verschuure,J.M.

AU - Van Veghel,M.L.J.

N1 - Reporting year: 1995 Metis note: 0757; CEME; RE; file:///L:/Endnotedatabases/NIOOPUB/pdfs/Pdfs1995/VanLent_ea_0757.pdf

PY - 1995

Y1 - 1995

N2 - The combined effects of light and nitrogen availability on population dynamical characteristics (e.g. growth rate, biomass, density, flowering) of a perennial and semi-annual population of Zostera marina L. were experimentally studied in two non-tidal lagoons (Grevelingen and Veerse Meer). Light reduction (approximate to 70%) significantly reduced all population dynamical features measured both populations. Under reduced light uptake of nitrogen occurred by plants of the semi-annual population, but the nutrient could not be used for growth. After enrichment with nitrogen plants of neither population stored nitrogen; the nutrient was immediately used. Light limitation of growth remained undetermined for the semi- annual population, although mean values for biomass and density characteristics doubled at light enhancement (studied in the Veerse Meer only). Nitrogen enrichment had a significantly positive effect on the perennial population; leading to enhanced above-ground relative growth rate, flowering and above-ground biomass. A lower probability of recruitment through generative reproduction (flowering) of the perennial population caused by nitrogen limitation apparently does not become compensated for by a possible higher vegetative production of shoots. Nitrogen limitation is thought to be a concomitant factor in the sharp decline of Z. marina populations since 1985 in the Grevelingen. [KEYWORDS: Flowering; growth; light manipulation; nitrogen enrichment; population dynamics; zostera marina Nutrient enrichment; depth distribution; sediment ammonium; pore water; growth; seagrass; availability; lagoon; beds; bay]

AB - The combined effects of light and nitrogen availability on population dynamical characteristics (e.g. growth rate, biomass, density, flowering) of a perennial and semi-annual population of Zostera marina L. were experimentally studied in two non-tidal lagoons (Grevelingen and Veerse Meer). Light reduction (approximate to 70%) significantly reduced all population dynamical features measured both populations. Under reduced light uptake of nitrogen occurred by plants of the semi-annual population, but the nutrient could not be used for growth. After enrichment with nitrogen plants of neither population stored nitrogen; the nutrient was immediately used. Light limitation of growth remained undetermined for the semi- annual population, although mean values for biomass and density characteristics doubled at light enhancement (studied in the Veerse Meer only). Nitrogen enrichment had a significantly positive effect on the perennial population; leading to enhanced above-ground relative growth rate, flowering and above-ground biomass. A lower probability of recruitment through generative reproduction (flowering) of the perennial population caused by nitrogen limitation apparently does not become compensated for by a possible higher vegetative production of shoots. Nitrogen limitation is thought to be a concomitant factor in the sharp decline of Z. marina populations since 1985 in the Grevelingen. [KEYWORDS: Flowering; growth; light manipulation; nitrogen enrichment; population dynamics; zostera marina Nutrient enrichment; depth distribution; sediment ammonium; pore water; growth; seagrass; availability; lagoon; beds; bay]

U2 - 10.1016/0022-0981(94)00131-V

DO - 10.1016/0022-0981(94)00131-V

M3 - Article

VL - 185

SP - 55

EP - 76

JO - Journal of Experimental Marine Biology and Ecology

T2 - Journal of Experimental Marine Biology and Ecology

JF - Journal of Experimental Marine Biology and Ecology

SN - 0022-0981

IS - 1

ER -

ID: 163532