http://ecosystems.mbl.edu/tide
Acceptance and utilization of TIDE project data requires that:
· The Project Principal Investigator, Linda Deegan, be sent a notice stating reasons for acquiring any data and a description of the publication intentions.
· The Project PI and the Principal Investigator of the data set be sent a copy of the report or manuscript prior to submission and be adequately cited in any resultant publications.
· A copy of any resultant publications should be sent to:
Linda Deegan
Ecosystems Center
Marine Biological Laboratory
Woods Hole, MA 02543
TIDE PROJECT DATABASE
DATA FILE: LD-ALL CREEKS-BENTHIC CHLA-2006.xls
LD-ALL CREEKS-BENTHIC CHLA-2006.txt
DOCUMENTATION FILE: LD-ALL CREEKS-BENTHIC CHLA-2006.doc
YEAR: 2006
PI: Linda Deegan
OTHERS: Christian Picard, Mike Johnson
BRIEF DESCRIPTION OF DATA FILE: Benthic chlorophyll samples collected from TIDE experimental and reference creeks.
KEYWORDS: sweeney, west, benthic, chlorophyll a, TIDE
RESEARCH LOCATION:
|
Creek |
Branch |
Transect |
Habitat |
|
SW, WE, |
Right Left |
1, 2, 3 |
MF, FA,
TSA, SP, SSA |
EXPERIMENTAL DESIGN AND METHODS: Benthic chlorophyll samples colleted using a core taken to 1 cm in depth. Two replicate samples taken for each creek/branch/transect/habitat. Samples were frozen and analyzed later in laboratory. Chlorophyll and phaeophytins measured using a spectrophotometer. Extractions from sediment made with 100% acetone, 12 hour soak time.
NOTES AND COMMENTS:
VARIABLE DESCRIPTION:SW was the nutrient addition manipulation and right branches of all creeks were fish removal manipulation
|
Name |
Description |
Unit |
Precision |
|
Year |
Year
sites were sampled |
yyyy |
|
|
Month |
Month
sites were sampled |
|
|
|
Creek |
Creek
samples were collected from |
|
|
|
Branch |
Branch
samples were collected from |
|
|
|
Transect |
Transect
samples were collected from |
|
|
|
Habitat |
Habitat
samples were collected from |
|
|
|
Chl a |
Amount of
chl a present |
mg/m2 |
|
|
Phaeophytin |
Amount of
phaeophytin present |
mg/m2 |
|
|
|
|
|
|
|
|
|
|
|
|
Comments |
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|
|
CALCULATIONS: Chl A (ug/cc) =((26.7 (665o – 665a) (v)) / (V)(L)
Phaeophytins (ug/cc) = (26.7((1.7 (665a)) – (665o)(v)) / (V)(L)
665o = turbidity corrected extinction at 665 nm before acidification
665a = turbidity corrected extinction at 665 nm after acidification
v = volume in ml of acetone during extraction, incl. mgCO3
V = volume inn cc of sediment extracted
26.7 = constant related to the specific absorbance of chl a
1.7 = ratio of the absorbance of pure chl a to the absorbance of an equivalent amount of
phaeophytin ( here chlorophyll is degraded by HCl)
FOR MORE INFORMATION, CONTACT: Christian Picard
OTHER DATA FILES TO REFERENCE:
REFERENCE CITATIONS:
ARCHIVE INFORMATION:
Date of entry: 11 January 2007
Data entered by: Mike Johnson
Comments: