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Dependence of eelgrass (Zostera marina) light requirements on sediment organic matter in Massachusetts coastal bays: implications for remediation and restoration.
Kenworthy, W J; Gallegos, C L; Costello, Charles; Field, Donald; di Carlo, Giuseppe.
Afiliação
  • Kenworthy WJ; Center for Coastal Fisheries and Habitat Research, NCCOS, NOS, NOAA, 101 Pivers Island Rd, Beaufort, NC 28516, USA. Electronic address: jud.kenworthy@gmail.com.
  • Gallegos CL; Smithsonian Environmental Research Center, P.O. Box 28, Edgewater, MD 21037, USA. Electronic address: gallegosc@si.edu.
  • Costello C; Division of Watershed Management, Massachusetts Department of Environmental Protection, 1 Winter Street, Boston, MA 02108, USA. Electronic address: charles.costello@state.ma.us.
  • Field D; Center for Coastal Fisheries and Habitat Research, NCCOS, NOS, NOAA, 101 Pivers Island Rd, Beaufort, NC 28516, USA. Electronic address: don.field@noaa.gov.
  • di Carlo G; Center for Coastal Fisheries and Habitat Research, NCCOS, NOS, NOAA, 101 Pivers Island Rd, Beaufort, NC 28516, USA. Electronic address: Giuseppe.dicarlo@gmail.com.
Mar Pollut Bull ; 83(2): 446-57, 2014 Jun 30.
Article em En | MEDLINE | ID: mdl-24308994
Using a calibrated bio-optical model we determined that the optical water quality conditions in several nitrogen-impaired embayments and in one unimpaired system were within the range of values known to support eelgrass growth. We also used the model to identify a range of light requirements for eelgrass (Zostera marina). Higher eelgrass light requirements, expressed as a percentage of surface-incident irradiance, corresponded with higher sediment organic matter content. These results corroborated findings by previous studies which indicate a generalized relationship: seagrasses growing in turbid conditions with poorer water and sediment quality have higher light requirements than those growing in less degraded conditions. The mechanistic reason for the variation in light requirements is still not completely explained and cannot be attributed to a single independent variable. Varying light requirement have important implications for eelgrass protection and should be considered when setting restoration targets for eelgrass in water quality and nitrogen remediation programs.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Baías / Sedimentos Geológicos / Zosteraceae / Recuperação e Remediação Ambiental / Luz Tipo de estudo: Prognostic_studies País/Região como assunto: America do norte Idioma: En Revista: Mar Pollut Bull Ano de publicação: 2014 Tipo de documento: Article País de publicação: Reino Unido

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Baías / Sedimentos Geológicos / Zosteraceae / Recuperação e Remediação Ambiental / Luz Tipo de estudo: Prognostic_studies País/Região como assunto: America do norte Idioma: En Revista: Mar Pollut Bull Ano de publicação: 2014 Tipo de documento: Article País de publicação: Reino Unido