Document Detail


Dependence of eelgrass (Zostera marina) light requirements on sediment organic matter in Massachusetts coastal bays: Implications for remediation and restoration.
MedLine Citation:
PMID:  24308994     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
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.
Authors:
W J Kenworthy; C L Gallegos; Charles Costello; Donald Field; Giuseppe di Carlo
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Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-12-2
Journal Detail:
Title:  Marine pollution bulletin     Volume:  -     ISSN:  1879-3363     ISO Abbreviation:  Mar. Pollut. Bull.     Publication Date:  2013 Dec 
Date Detail:
Created Date:  2013-12-6     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0260231     Medline TA:  Mar Pollut Bull     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2013. Published by Elsevier Ltd.
Affiliation:
Center for Coastal Fisheries and Habitat Research, NCCOS, NOS, NOAA, 101 Pivers Island Rd, Beaufort, NC 28516, USA. Electronic address: jud.kenworthy@gmail.com.
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