Skip to main content

Free Content Skeletal Extension, Density and Calcification of the Reef Coral, Montastrea Annularis: St. Croix, U.S. Virgin Islands

Download Article:
 Download
(PDF 1,183.5 kb)
 

Abstract:

Parameters of the annual and subannual skeletal growth of 61 Montastrea annularis corals, collected at a variety of shallow depth sites on reefs of St. Croix, U.S. Virgin Islands, are determined by X-radiography and scanning densitometry for each year in the 10-year period, 1970–1979. Extension (linear growth) of the coral skeleton is correlated negatively with bulk density (mass per unit volume) and positively with calcification (mass addition). Density and mass are slightly positively correlated. No one parameter, however, is a perfect predictor of another. At least two parameters, from which the third can be calculated, are required for complete description of coral growth. The variations of parameters of subannual density bands in this study do not convey information additional to those of annual bands.

When compared to a pristine site in St. Croix, coral from Round Reef within Christiansted Harbor (a location of past dredging and sewage pollution) have equivalent (and high) extension but significantly lower density and calcification. On the south coast, corals from a location of major dredging activity in the past have relatively low extension and calcification. These growth anomalies are probably pollution related. Collections of corals from one south coast site may have been biased by hurricane effects to nonrepresentative samples.

Document Type: Research Article

Publication date: March 1, 1984

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
umrsmas/bullmar/1984/00000034/00000002/art00011
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

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
X
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