Posidonia oceanica re-implantation technology of the marine gardeners is now operational on a large scale

Augier, H.; Eugene, C; Harmand-Desforges, J.M.; Sougy, A.

doi:10.1016/0964-5691(95)00064-x

Cited by 9 publications

(6 citation statements)

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“…Although some attempts to restore damaged P. oceanica meadows have had a certain level of success (Augier et al, 1996;Balestri et al, 1998;Bastyan and Cambridge, 2008), sustained maintenance of healthy ecosystems appears to be the most effective management strategy to prevent the risk of replacement of their foundation species. Notwithstanding difficulties in isolating the mechanisms that allow for settlement and spread of substitutes in altered ecosystems (Carlton and Geller, 1993), developing the capacity to predict their future distribution is essential for prioritization, early detection and control (Broennimann et al, 2007).…”

Section: Discussionmentioning

confidence: 99%

Patterns of wide‐scale substitution within meadows of the seagrass Posidonia oceanica in NW Mediterranean Sea: invaders are stronger than natives

Montefalcone

Albertelli

Morri

et al. 2010

Aquatic Conservation

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ABSTRACT1. The endemic seagrass Posidonia oceanica meadows in the Mediterranean Sea are presently facing invasion by alien algal species, especially where they are already showing signs of regression as a result of other stresses. Regressed meadows may be recolonized by native or alien macrophytes that take the place of P. oceanica.2. The pattern and degree of substitution by either native (Cymodocea nodosa and Caulerpa prolifera) or alien (Caulerpa taxifolia and C. racemosa) species in 17 P. oceanica meadows along the coast of Liguria (Italy, NW Mediterranean) were investigated. The invaders were found to be stronger colonizers, in terms of habitat occupancy within meadows, than the natives.3. A set of indices was used to quantify biological invasion within the seagrass ecosystem and to explore the relationship between the meadow's state of health and the replacement by substitutes. The ecological status of the receiving habitat was shown to play a major role in modulating the spread of substitutes.4. Substitutes are thought likely to act simply as passengers of habitat degradation in deep meadows, where previous regression has increased the likelihood of their colonization, but could be the drivers for P. oceanica loss in shallow ones, where they settled even in healthy meadows thus starting the process of regression. Long term monitoring and sustained maintenance of healthy P. oceanica meadows appear to be the most effective management tools to contain the risk of ecological substitution.

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Section: Discussionmentioning

confidence: 99%

Patterns of wide‐scale substitution within meadows of the seagrass Posidonia oceanica in NW Mediterranean Sea: invaders are stronger than natives

Montefalcone

Albertelli

Morri

et al. 2010

Aquatic Conservation

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“…The general procedure for restoration of P. oceanica is to attach transplants to the substrate using nonbiodegradable materials (Meinesz et al , ; Molenaar & Meinesz ; Molenaar et al ; Augier et al ; Balestri et al , ). A well‐developed root system is expected to maximize anchoring capacity and nutrient acquisition (Balestri & Lardicci ; Schutten et al ; Statton et al ).…”

Section: Discussionmentioning

confidence: 99%

Influence of substrate and burial on the development of Posidonia oceanica: implications for restoration

Guerrero‐Meseguer

Sanz‐Lázaro

Suk-Ueng

et al. 2016

Restoration Ecology

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Posidonia oceanica is one of the few seagrasses that can colonize hard and soft substrates. To test whether substrate could affect root development of the seedlings, with a legacy effect upon transplantation to sand, we germinated seeds on hard (glass slide) versus soft (sand) substrates in microcosms. We found that sand favored root system development, with a compensatory slowing of leaf development, while glass had the opposite effect. After 4 months, we transplanted all seedlings to sand and tested for a legacy effect of initial substrate type. Leaves of seedlings germinated on sand and glass slides reached approximately the same length, but roots from seedlings germinated on glass did not develop fully. Seed burial (0–1.5 cm) did not affect seedling development. These results suggest that the culture of P. oceanica on sand prior to transplantation could enhance seedlings survival in restoration programs.

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“…These cuttings were collected in the meadow of the Revellata Bay between 5 and 15 m depth. Naturally uprooted cuttings were use in order to minimise the impact of transplant collection on the P. oceanica meadow (Augier et al, 1996).…”

Section: Methodsmentioning

confidence: 99%

Nitrogen dynamics in Posidonia oceanica cuttings: implications for transplantation experiments

Lepoint

Vangeluwe

Eisinger

et al. 2004

Marine Pollution Bulletin

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A 15 N tracer study was performed during an experimental transplantation trial of natural Posidonia oceanica cuttings. The experiment was done in situ at 17 m depth in the Revellata Bay (Calvi, NW Corsica, France). Despite high survival rates of transplants (>90%) after one year, the weight and the N content of transplants are significantly lower than those of reference plants. In absence of roots, the transplants are not able to meet their N requirement because, leaf uptake is insufficient to replenish the N lost during the natural leaf decay. This could constitute a major cause of long-term failure for transplantation experiments or natural re-colonisation processes. The increase of the 15 N content in the roots shows that the plant re-allocates the nitrogen of one organ (i.e. leaves, rhizomes) to ensure the growth of another (i.e. roots).

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Posidonia oceanica re-implantation technology of the marine gardeners is now operational on a large scale

Cited by 9 publications

References 0 publications

Patterns of wide‐scale substitution within meadows of the seagrass Posidonia oceanica in NW Mediterranean Sea: invaders are stronger than natives

Patterns of wide‐scale substitution within meadows of the seagrass Posidonia oceanica in NW Mediterranean Sea: invaders are stronger than natives

Influence of substrate and burial on the development of Posidonia oceanica: implications for restoration

Nitrogen dynamics in Posidonia oceanica cuttings: implications for transplantation experiments

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