Site-selection model for optimal transplantation of eelgrass Zostera marina in the northeastern US

Short, Frederick T.; Davis, Ryan C.; Kopp, Blaine S.; Short, C. A.; Burdick, David M.

doi:10.3354/meps227253

Cited by 113 publications

(104 citation statements)

References 40 publications

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“…the habitat has not been degraded or degradation has been reversed), and if donor material is from comparable conditions and has high genetic diversity (Short et al 2002, van der Heide et al 2007, van Katwijk et al 2009, Fonseca 2011, Reynolds et al 2012, this Theme Section). The most important habitat characteristics in fluencing restoration success are water column light attenuation, sediment characteristics (e.g.…”

Section: Introductionmentioning

confidence: 99%

“…The most important habitat characteristics in fluencing restoration success are water column light attenuation, sediment characteristics (e.g. porewater redox, sulfide, organic content, grain size), and local hydrodynamics (Koch 2001, Short et al 2002, van der Heide et al 2007, van Katwijk et al 2009). The existence of alternative states of clear water/seagrass conditions and turbid water/no seagrass in shallow ecosystems occurs primarily because of the positive feedback of seagrasses on dampening sediment sus pen sion and improving water clarity (van der Heide et al 2007, Carr et al 2010.…”

Section: Introductionmentioning

confidence: 99%

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Recovery trajectories during state change from bare sediment to eelgrass dominance

McGlathery

Reynolds²,

Cole³

et al. 2012

Mar. Ecol. Prog. Ser.

136

138

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Seagrasses are important foundation species in shallow coastal ecosystems that provide critical ecosystem services including stabilizing sediment, sequestering carbon and nutrients, and providing habitat and an energy source for a diverse fauna. We followed the recovery of functional (primary productivity, carbon and nitrogen sequestration, sediment deposition) and structural (shoot density, biomass, plant morphometrics) attributes of Zostera marina (eelgrass) meadows in replicate large plots (0.2 to 0.4 ha) restored by seeding in successive years, resulting in a chrono sequence of sites from 0 (unvegetated) to 9 yr since seeding. Shoot density was the structural metric that changed most significantly, with an initial 4 yr lag, and a rapid, linear increase in plots 6 to 9 yr after seeding. Changes in Z. marina aerial productivity, sediment organic content, and exchangeable ammonium showed a similar trend with an initial 4 yr lag period before differences were observed from initial bare sediment conditions. After 9 yr, Z. marina meadows had 20× higher rates of areal productivity than 1 to 3 yr old meadows, double the organic matter and exchangeable ammonium concentrations, 3× more carbon and 4× more nitrogen, and had accumulated and retained finer particles than bare, unvegetated sediments. These results demonstrate the reinstatement of key ecosystem services with successful large-scale restoration, although none of the parameters reached an asymptote after 9 yr, indicating that at least a decade is required for these attributes to be fully restored, even in an area with high habitat suitability. Survivorship along a depth gradient showed that ~1.6 m (mean sea level) is the maximum depth limit for Z. marina, which matches the 'tipping point' for survival predicted for this system from a non-linear hydro dynamic/seagrass growth model.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Recovery trajectories during state change from bare sediment to eelgrass dominance

McGlathery

Reynolds²,

Cole³

et al. 2012

Mar. Ecol. Prog. Ser.

136

138

View full text Add to dashboard Cite

show abstract

“…Worm & Reusch 2000, Short et al 2002. It is a common phenomenon in transplantation experiments that the total number of transplants decreases logarithmically towards a stable number during the first weeks after planting (Fonseca et al 1998).…”

Section: Transplant Survival and Developmentmentioning

confidence: 99%

Planting density, hydrodynamic exposure and mussel beds affect survival of transplanted intertidal eelgrass

Bos¹,

Katwijk²

2007

Mar. Ecol. Prog. Ser.

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“…Sea grass growth and development is, however, highly dependent on physical, chemical, and ecological conditions such as hydrodynamics, light availability, substratum type, organic matter in the sediment, and herbivory (Koch 2001;Short et al 2002).…”

mentioning

confidence: 99%

Posidonia oceanica and Cymodocea nodosa seedling tolerance to wave exposure

Infantes

Orfila

Bouma

et al. 2011

Limnology & Oceanography

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We studied the role of hydrodynamics in the establishment of sea grass seedlings for two Mediterranean sea grass species, Posidonia oceanica and Cymodocea nodosa, by combining flume and field studies. Flume measurements under both unidirectional and oscillatory flow showed that P. oceanica seedlings experienced higher drag forces than C. nodosa, which could be related to the larger total leaf area. Drag coefficients were between 0.01 and 0.1 for Reynolds numbers of 10 3 and 10 5 . As a result, P. oceanica seedlings required 40-50% of root length anchored to the sediment before being dislodged, whereas C. nodosa required < 20%. To validate the flume results, seedling survival in sandy beds was evaluated for two depths (12 and 18 m) at two field locations. To calculate near-bottom orbital velocities at the planting sites, deep-water waves were propagated to shallow water using a numerical model. Our results showed that P. oceanica seedlings experienced high losses after the first autumn storms when near-bottom orbital velocities exceeded 18 cm s 21 . The loss of C. nodosa seedlings was much lower and some seedlings survived velocities as high as 39 cm s 21 . Thus, flume and field results are consistent in explaining relative higher losses of P. oceanica seedlings than for C. nodosa.

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Site-selection model for optimal transplantation of eelgrass Zostera marina in the northeastern US

Cited by 113 publications

References 40 publications

Recovery trajectories during state change from bare sediment to eelgrass dominance

Recovery trajectories during state change from bare sediment to eelgrass dominance

Planting density, hydrodynamic exposure and mussel beds affect survival of transplanted intertidal eelgrass

Posidonia oceanica and Cymodocea nodosa seedling tolerance to wave exposure

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