Response of estuarine diatom assemblages to ultraviolet-B radiation (290-320 nm) Public Deposited

http://ir.library.oregonstate.edu/concern/technical_reports/qj72p771p

Descriptions

Attribute NameValues
Creator
Abstract or Summary
  • Artificial substrates colonized by diatoms from Yaquina Estuary, Oregon, were exposed to solar visible radiation and three levels of ultraviolet radiation (UV-B, 290-320 nm). Flow-through microcosms were constructed inside a glasshouse to serve as chambers for the artificial substrates. The artificial substrates were sampled during three spring/summer experiments. Chlorophyll a concentration, biomass (ash-free dry weight), primary productivity (radiocarbon uptake), and community composition were the parameters measured biweekly for each four-week experimental period. The results indicated that daily exposure to enhanced levels of UV-B radiation was associated with a decrease in species diversity of benthic diatom assemblages during all experiments after four weeks of growth. However, changes in taxonomic structure were not accompanied by a significant depression in chlorophyll a concentration, biomass, or radiocarbon uptake. In fact, in some experiments enhanced levels of UV-B radiation appeared to have a stimulatory effect on the latter parameters.
Resource Type
Date Available
Date Issued
Series
Subject
Rights Statement
Funding Statement (additional comments about funding)
Publisher
Peer Reviewed
Language
Digitization Specifications
  • File scanned at 300 ppi (Monochrome) using Capture Perfect 3.0.82 on a Canon DR-9080C in PDF format. CVista PdfCompressor 4.0 was used for pdf compression and textual OCR.
Replaces
Additional Information
  • description.provenance : Made available in DSpace on 2012-01-20T19:42:31Z (GMT). No. of bitstreams: 1 ResponseEstuarineDiatomAssemblages.pdf: 10416858 bytes, checksum: be915e0836ebe8ddf2776814988740e2 (MD5) Previous issue date: 1985-01
  • description.provenance : Submitted by Susan Gilmont (susan.gilmont@orst.edu) on 2012-01-20T19:42:31Z No. of bitstreams: 1 ResponseEstuarineDiatomAssemblages.pdf: 10416858 bytes, checksum: be915e0836ebe8ddf2776814988740e2 (MD5)

Relationships

In Administrative Set:
Last modified: 07/06/2017

Downloadable Content

Download PDF
Citations:

EndNote | Zotero | Mendeley

Items