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Title: Estimating maximum depth distribution of seagrass using underwater videography

Abstract

The maximum depth distribution of eelgrass (Zostera marina) beds in Willapa Bay, Washington appears to be limited by light penetration which is likely related to water turbidity. Using underwater videographic techniques we estimated that the maximum depth penetration in the less turbid outer bay was -5.85 ft (MILW) and in the more turbid inner bay was only -1.59 ft (MLLW). Eelgrass beds had well defined deepwater edges and no eelgrass was observed in the deep channels of the bay. The results from this study suggest that aerial photographs taken during low tide periods are capable of recording the majority of eelgrass beds in Willapa Bay.

Authors:
 [1];
  1. Marine Resources Consultants, Port Townsend, WA (United States)
Publication Date:
OSTI Identifier:
478169
Report Number(s):
CONF-970319-
TRN: 97:002802-0063
Resource Type:
Conference
Resource Relation:
Conference: 4. thematic international conference on remote sensing for marine and coastal environments: technology and applications, Orlando, FL (United States), 17-19 Mar 1997; Other Information: PBD: 1997; Related Information: Is Part Of Proceedings of the fourth international conference on remote sensing for marine and coastal environments. Technology and applications: Volume I; PB: 741 p.
Country of Publication:
United States
Language:
English
Subject:
54 ENVIRONMENTAL SCIENCES; SEAWEEDS; SPATIAL DISTRIBUTION; DEPTH; WASHINGTON; TURBIDITY; BAYS

Citation Formats

Norris, J.G., and Wyllie-Echeverria, S. Estimating maximum depth distribution of seagrass using underwater videography. United States: N. p., 1997. Web.
Norris, J.G., & Wyllie-Echeverria, S. Estimating maximum depth distribution of seagrass using underwater videography. United States.
Norris, J.G., and Wyllie-Echeverria, S. Sun . "Estimating maximum depth distribution of seagrass using underwater videography". United States.
@article{osti_478169,
title = {Estimating maximum depth distribution of seagrass using underwater videography},
author = {Norris, J.G. and Wyllie-Echeverria, S.},
abstractNote = {The maximum depth distribution of eelgrass (Zostera marina) beds in Willapa Bay, Washington appears to be limited by light penetration which is likely related to water turbidity. Using underwater videographic techniques we estimated that the maximum depth penetration in the less turbid outer bay was -5.85 ft (MILW) and in the more turbid inner bay was only -1.59 ft (MLLW). Eelgrass beds had well defined deepwater edges and no eelgrass was observed in the deep channels of the bay. The results from this study suggest that aerial photographs taken during low tide periods are capable of recording the majority of eelgrass beds in Willapa Bay.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jun 01 00:00:00 EDT 1997},
month = {Sun Jun 01 00:00:00 EDT 1997}
}

Conference:
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