Skip to main content

Free Content A plastochrone method for measuring leaf growth in eelgrass, Zostera marina L.

Download Article:
(PDF 282 kb)


Eelgrass, Zostera marina L., leaf growth measurement methods were investigated and compared in New Hampshire and Maine, USA. The commonly used leaf marking method, developed by Zieman (1974) and embraced by Dennison (1990), was found to underestimate leaf growth, particularly when measured over small time intervals, compared to a method developed by Short (1987) based on the weight of mature leaf tissue. Short's method (1987) was then compared to a modification of the plastochrone interval method of Jacobs (1979), giving very similar results. In our plastochrone method, leaf growth is calculated as the weight of a mature leaf divided by the time interval between initiation of two successive leaves on one shoot, the plastochrone interval. Our investigations demonstrate that the leaf plastochrone interval in eelgrass varies seasonally; to use the plastochrone method, the plastochrone interval must be measured for each growth determination. Based on our comparisons, we recommend what we call the 'plastochrone method' as a more efficient and accurate way to measure eelgrass leaf growth.

Document Type: Research Article

Publication date: November 1, 2002

More about this publication?
  • The Bulletin of Marine Science is dedicated to the dissemination of high quality research from the world's oceans. All aspects of marine science are treated by the Bulletin of Marine Science, including papers in marine biology, biological oceanography, fisheries, marine affairs, applied marine physics, marine geology and geophysics, marine and atmospheric chemistry, and meteorology and physical oceanography.
  • Editorial Board
  • Information for Authors
  • Subscribe to this Title
  • Terms & Conditions
  • ingentaconnect is not responsible for the content or availability of external websites

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
Cookie Policy
ingentaconnect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more