Accession Number:

ADA527238

Title:

Benthic Ecology from Space: Optics and Net Primary Production in Seagrass and Benthic Algae Across the Great Bahama Bank

Descriptive Note:

Journal article

Corporate Author:

CONNECTICUT UNIV GROTON DEPT OF MARINE SCIENCES

Report Date:

2010-01-01

Pagination or Media Count:

16.0

Abstract:

Development of repeatable and quantitative tools are necessary for determining the abundance and distribution of different types of benthic habitats, detecting changes to these ecosystems, and determining their role in the global carbon cycle. Here we used ocean color remote sensing techniques to map different major groups of primary producers and estimate net primary productivity NPP across Great Bahama Bank GBB. Field investigations on the northern portion of the GBB in 2004 revealed 3 dominant types of benthic primary producers seagrass, benthic macroalgae, and microalgae attached to sediment. Laboratory measurements of NPP ranged from barely net autotrophic for grapestone sediment with thin microalgal biofilm to highly productive for dense accumulations of brown macroalgae. A logarithmic relationship between NPP and green seafloor reflectance described the general trend in NPP across various benthic constituents.

Subject Categories:

  • Biology
  • Ecology

Distribution Statement:

APPROVED FOR PUBLIC RELEASE