Long-term effect of beach replenishment on natural recovery of shallow Posidonia oceanica meadows

Gónzalez-Correa, José Miguel; Fernández‐Torquemada, Yolanda; Sánchez-Lizaso, José Luis

doi:10.1016/j.ecss.2007.08.012

Cited by 45 publications

(32 citation statements)

References 50 publications

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“…Seagrass densities, expressed as number of shoots of Posidonia oceanica, were calculated at each transect by deploying 40 9 40 cm plots (Prado et al 2007;González-Correa et al 2008). Moreover, the cover of Lophocladia lallemandii was quantified within 20 9 20 cm plots on the epiphyted Posidonia leaves and shoots, and both P. oceanica and L. lallemandii samples were collected within 20 9 20 cm for algal biomass determination (Piazzi and Balata 2008a).…”

Section: Sampling and Study Locationsmentioning

confidence: 99%

Interaction between the invasive macroalga Lophocladia lallemandii and the bryozoan Reteporella grimaldii at seagrass meadows: density and physiological responses

et al. 2009

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Invasive epiphyte Lophocladia lallemandii macroalga induces changes in the erect bryozoan Reteporella grimaldii at shallow Posidonia oceanica meadows at a Mediterranean pristine location. Bryozoan densities at noninvaded seagrass plots (88.32 ± 3.11 colonies m -2 ) are higher than those at invaded plots (13.39 ± 1.09 colonies m -2 ) with a fourfold decrease in number of colonies. Activation of enzymatic pathways (catalase, superoxide dismutase, glutathione peroxidase) and increase in lipid peroxidation malondialdehyde (MDA) [0.80 ± 0.06 nmol/mg prot at Posidonia oceanica plots to 1.08 ± 0.04 nmol/ mg prot at L. lallemandii (P \ 0.05)] is observed on sessile bryozoans as response to anoxia caused by L. lallemandii. d 13 C of bryozoan isotopic composition differed among treatments, covering a broad range (-19.30% invaded to -2.84% at noninvaded plots), suggesting modification of food sources. Induced shifts of a filter-feeding erect bryozoan by dense algal turfs at invaded seagrasses are demonstrated, highlighting the need to further address interaction across natural communities and alien species invaded systems before further cascade effects are driven.

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Section: Sampling and Study Locationsmentioning

confidence: 99%

Interaction between the invasive macroalga Lophocladia lallemandii and the bryozoan Reteporella grimaldii at seagrass meadows: density and physiological responses

et al. 2009

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“…A pesar de su importancia estos ecosistemas están amenazados por una gran variedad de actividades humanas, entre los que se pueden destacar los vertidos de aguas urbanas e industriales, la acuicultura, las obras costeras, la erosión mecánica provocada por la pesca de arrastre o el anclaje de embarcaciones (Ruiz, 2001(Ruiz, , 2003Delgado et al, 1997;Sánchez Lizaso et al, 2008;Martín et al, 1997;Fernández Torquemada et al, 2005;González Correa et al, 2005, 2008.…”

Section: Evaluación De Los Efectos Del Anclaje De Embarcaciones Sobreunclassified

Evaluación de los efectos del anclaje de embarcaciones sobre pradera de Posidonia oceanica (L.) en dos localidades mediterráneas

Tonda¹,

Forcada²,

Sánchez-Lizaso³

2011

MDTRRA

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“…The beach is open to the east, and has been artificially replenished in the past, especially since the 90s decade. The shore platform presents a small angle of inclination (1-2%), and has a P. oceanica meadow close to the beach [36]. The potential erosive action occurs during periods of torrential rain, where the runoff water deriving from the close gullies could erode the beach.…”

Section: Study Areamentioning

confidence: 99%

3-D Morphological Change Analysis of a Beach with Seagrass Berm Using a Terrestrial Laser Scanner

Corbí

Riquelme

Megías-Baños

et al. 2018

IJGI

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Along many Mediterranean coasts, the detached seagrass material of Posidonia oceanica creates seagrass berms that control the structure and morphodynamics of sandy beaches. Here, we show how Terrestrial Laser Scanner remote sensing data allows analyzing the 3-D morphologic change of beaches where this characteristic geomorphic structure is present. We propose a methodology for estimating accretion/erosion (almost −200 m 3 in our study) by considering the sand dominated and seagrass berms as two independent elements. For this purpose, two different sampling dates (named scenarios A and B, before and after an erosive heavy storms period, respectively) recorded in a microtidal pocket-beach (300 m 2 ) with these characteristic geomorphic structures have been modeled in 3-D. The present approach constitutes a cost-efficient, accurate, and quick tool to survey the sand volume in natural and artificial replenished beaches. The innovative approach, which can be considered as a conceptual and methodological starting point, can be useful to examine long-term and high-precision data sets in future studies of the morphodynamic evolution of these characteristic Mediterranean beaches.

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Long-term effect of beach replenishment on natural recovery of shallow Posidonia oceanica meadows

Cited by 45 publications

References 50 publications

Interaction between the invasive macroalga Lophocladia lallemandii and the bryozoan Reteporella grimaldii at seagrass meadows: density and physiological responses

Interaction between the invasive macroalga Lophocladia lallemandii and the bryozoan Reteporella grimaldii at seagrass meadows: density and physiological responses

Evaluación de los efectos del anclaje de embarcaciones sobre pradera de Posidonia oceanica (L.) en dos localidades mediterráneas

3-D Morphological Change Analysis of a Beach with Seagrass Berm Using a Terrestrial Laser Scanner

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