All data presented herein are subject to change as the data is continually under development. Any
questions or concerns should be directed to the data manager. Please request for permission to use this data
from the aforementioned data manager .

Hydrography	Phytoplankton	Ichthyoplankton	Zooplankton
Graphs : Graphs : Graphs : Graphs : Served Data: Served Data: Served Data: Served Data: NEW UPDATES At this time data served in numerical format is still in the process of being served. It is a continual process! As of March-05 all of the 2003 and all of the 2004 hydrography, chlorophyll and zooplankton data is up in numerical format. Phytoplankton and ichthyoplankton species data needs to be included in numerical format. Graphical representation of the chlorophyll-a and phaeophytin data needs to be updated. Graphical representation of the data linked from this page are in .PDF format however the effort is being made to switch all graphs over to HTML for easier viewing. If you do not have Adobe Acrobat Reader, for viewing the PDF files, you can download it for free at the Adobe website.

 

courtesy of USGS

Sampling takes place on a weekly schedule with the cooperation of Portsmouth Fishermen's COOP and Seabrook Yankee Fishermen's COOP fishermen. Each week we visit the two stations shown on the above map, GoMOOS Buoy "B" and New Scantum at the southern edge of Jeffreys Ledge. Samples taken are a CTD (SeaCat 19 plus) cast for salinity, temperature, density, and fluorescence; 2 vertical ring net tows with a 200 micron mesh for zooplankton and ichthyoplankton assemblages and abundance; and water samples taken from every 10 meter depth from 0-50 meters for nutrient and chlorophyll-a profiling as well as phytoplankton assemblages.