LTE-MD-EARLYVEG.02 Robert Buchsbaum

Massachusetts Audubon, North Shore Endicott Regional Center 356 Grapevine Road Wenham MA 01984 USA

Plum Island Ecosystems LTER Program

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Amy Chiuchiolo additional investigator Linda Deegan additional investigator Julie Horowitz additional investigator Maria Mensching additional investigator GDA students additional investigator 2001 Biomass and shoot densities at hayed and reference sites for samples collected in June and early July 2000 PIE LTER primary production organic matter population dynamics haying salt marsh vegetation Acceptance and utilization of PIE-LTER data requires that: The Principal Investigator be sent a notice stating reasons for acquiring any data and a description of the publication intentions. 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: Principal Investigator Ecosystems Center Marine Biological Laboratory Woods Hole, MA 02543 http://ecosystems.mbl.edu/PIE/data/LTE/LTE-MD-EARLYVEG.html Salt marsh that is hayed by Dan McHugh in Rowley, MA and reference areas in the vicinity of Stackyard and Patmos Roads. Four study sites (two hayed and two references). The two hayed sites are McH1 (hayed every year, north of Patmos Rd) and EPH (East of Perry's land and between Sawyer Creek and Patmos Rd, hayed every two years, last hayed in 1999). The two reference sites are PUH (Perry Unhayed, between Sawyer Creek and Patmos Rd) and Club Creek (S of Stackyard Rd and bounded on its E side by the PRNWR). -70.847 -70.836 42.74 42.747 2000-06-05 2000-07-06 Genus Spartina Species alterniflora Genus Spartina Species patens Genus Distichlis Species spicata Genus Juncus Species gerardi Version 01, initial Excel to EML metadata Version 02 keyword update Data Manager

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Plum Island Ecosystems LTER

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu http://ecosystems.mbl.edu/PIE/ Shoot densities and biomass of individual species within four vegetation zones (Spartina alterniflora, S. patens, Distichlis spicata, Juncus gerardi) were compared at four marsh sites (2 hayed and 2 reference). Sampling was carried out by placing three 0.1 m2 quadrats within identified vegetation zones at each marsh site. Plants were clipped at the surface of the substrate and then divided into live and dead material. The live plants were further separated into individual species. The number of shoots per species per quadrat was determined by counting individual shoots. After counting, plant material was dried at 60oC to constant weight (about 48 hrs) and the plants weighed on an electronic balance. NOTES AND COMMENTS: Vegetation zones were determined visually and were therefore somewhat subjective. Abbreviations for “Collectr” RB (Robert Buchsbaum), AC (Amy Chiuchiolo), LD (Linda Deegan), JH (Julie Horowitz), MM (Maria Mensching), GDA (Governor Dummer students) Anne Giblin

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7488 agiblin@mbl.edu Lead PI Hap Garritt

The Ecosystems Center Marine Biological Lab 7 MBL St Woods Hole MA 02543 USA

(508) 289 7485 pie_im@mbl.edu Information Manager The Plum Island Ecosystems (PIE) LTER is an integrated research, education and outreach program whose goal is to develop a predictive understanding of the long-term response of watershed and estuarine ecosystems at the land-sea interface to changes in climate, land use and sea level. The principal study site is the Plum Island Sound estuary, its coupled Parker, Rowley and Ipswich River watersheds and the adjacent coastal ocean, the Gulf of Maine. The PIE LTER focuses on how several aspects of global change influence organic matter and inorganic nutrient biogeochemistry and estuarine foodwebs. The inputs of organic matter and nutrients from land, ocean and marshes interact with the external drivers (climate, land use, river discharge, sea level) to dictate the extent and degree of nutrient and organic matter processing and determine the spatial patterns of estuarine productivity and trophic structure. This material is based upon work supported by the National Science Foundation under Grants OCE-9726921, OCE-0423565. Any opinions, findings, conclusions, or recommendations expressed in the material are those of the author(s) and do not necessarily reflect the views of the National Science Foundation. The Plum Island Ecosystems (PIE) LTER site, is located in northeastern Massachusetts, 42.72 N, 70.85 W. The PIE LTER lies at the interface of a thinly soiled, formerly glaciated New England land mass and the highly productive Gulf of Maine. Three watersheds comprise the estuarine drainage basin: Parker (155 km2), Rowley (26 km2) and Ipswich (404 km2). The Ipswich River watershed is highly urbanized with Boston "bedroom" communities encroaching in the headwater region while the Parker is less urbanized and retains a higher proportion of forest. -71.2198 -70.7568 42.8276 42.4965 0 100 meter uid=PIE,o=lter,dc=ecoinformatics,dc=org all public read LTE-MD-EARLYVEG.dat Biomass and shoot densities at hayed and reference sites for samples collected in June and early July 2000 LTE-MD-EARLYVEG.dat 1 column , http://ecosystems.mbl.edu/PIE/data/LTE/data/LTE-MD-EARLYVEG.dat DATE DATE date when plants were collected dd-mmm-yyyy Datesort Datesort date when plants were sorted by species dd-mmm-yyyy Location Location area where plants were collected area where plants were collected Treatm Treatm shows if site is a hayed area or a reference area shows if site is a hayed area or a reference area Plantzon Plantzon plant zone where collection took place (S. alterniflora, S. patens, etc.) plant zone where collection took place (S. alterniflora, S. patens, etc.) Rep Rep replicate number (three quadrats were collected for most samples) replicate number (three quadrats were collected for most samples) Shootden Shootden density of shoots of dominant species of that plant zone numberPerOneTenthMeterSquared real Collectr Collectr names of people who collected the samples RB Robert Buchsbaum AC Amy Chiuchiolo LD Linda Deegan JH Julie Horowitz MM Maria Mensching GDA Governor Dummer students Sadens Sadens Density of shoots of Spartina alterniflora in number per 0.1 m2 numberPerOneTenthMeterSquared real Spdens Spdens Density of shoots of Spartina patens in number per 0.1 m2 numberPerOneTenthMeterSquared real Dsdens Dsdens Density of shoots of Distichlis spicata in number per 0.1 m2 numberPerOneTenthMeterSquared real Jgdens Jgdens Density of shoots of Juncus gerardii in number per 0.1 m2 numberPerOneTenthMeterSquared real SALdens SALdens Density of shoots of Salicornia europaea in number per 0.1 m2 numberPerOneTenthMeterSquared real Biomdom Biomdom Biomass (in grams per 0.1 m2) of dominant species of that zone gramsPerOneTenthSquareMeter real Biomdead Biomdead Biomass (in grams per 0.1 m2) of standing dead gramsPerOneTenthSquareMeter real Sabiom Sabiom Biomass (in grams per 0.1 m2) of Spartina alterniflora gramsPerOneTenthSquareMeter real Spbiom Spbiom Biomass (in grams per 0.1 m2) of Spartina patens gramsPerOneTenthSquareMeter real Dsbiom Dsbiom Biomass (in grams per 0.1 m2) of Distichlis spicata gramsPerOneTenthSquareMeter real Jgbiom Jgbiom Biomass (in grams per 0.1 m2) of Juncus gerardii gramsPerOneTenthSquareMeter real Comments Comments additional notes pertaining to the observations additional notes pertaining to the observations number per 0.1 square meters grams of substance per one tenth of a meter squared