Reciprocal Transplanting of the Threatened Seagrass Halophila johnsonii (Johnson‚Äôs Seagrass) in the Indian River Lagoon, Florida

Heidelbaugh, W Schlese; Hall, Lauren M.; Kenworthy, W J; Whitfield, Paula E.; Virnstein, Robert W.; Morris, Lori J.; Hanisak, M. Dennis

doi:10.1201/9781420074475.sec3

Cited by 1 publication

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“…Concern has arisen over the decline of seagrass ecosystems worldwide as a result of adverse human activities in coastal areas (Walker and McComb 1992, Orth et al 2006, Duarte and Gattuso 2008, Hughes et al 2009. Restoration and mitigation programs have been carried out since the mid-20th century (Addy 1947, Phillips 1974, Gordon 1996, Fonseca et al 1998, Johansson and Greening 2000 using plant material collected from donor meadows (Orth et al 1999, Heidelbaugh et al 2000, Van Keulen et al 2003, Paling et al 2007, Park and Lee 2007. Because of the logistical burden associated with moving mature plants, the use of seeds and seedlings germinated in vitro is widely considered to be a more cost-effective alternative (Thorhaug 1985, Orth et al 1994, Balestri et al 1998, Kirkman 1998, Granger et al 2002, Pickerell et al 2005, Ailstock and Shafer 2006.…”

Section: Introductionmentioning

confidence: 99%

Restoration of Cymodocea nodosa seagrass meadows through seed propagation: germination in vitro, seedling culture and field transplants

Zarranz¹,

González-Henríquez

García‐Jiménez

et al. 2010

Botm

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Cymodocea nodosa, a marine angiosperm, an ecosystem engineer in the Mediterranean Sea and the Northwest Atlantic Ocean; however, as in other seagrasses meadows worldwide, the swards are actually declining due to increasing human pressures. Hence, we have developed an effective propagation methodology that provides C. nodosa seedlings for seagrass meadow restoration and conservation. This method consists of: i) germination of wild-collected seeds under hyposaline conditions, ii) acclimation of germinated seedling in tanks (1.6 m 3) until there are two shoots per seedling (;30 days), and iii) transplantation of acclimated seedlings to the field in dense groups. Our field outplants withstood herbivore activity and physical disturbance during the winter season, and propagated vegetatively, resulting in the spread and establishment of a new patch that has persisted for nine months.

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