uid=PIE,o=EDI,dc=edirepository,dc=org all public read HTL-PIE-Survey-1999 Monthly small nekton samplings collected in the Plum Island Estuary in 1999 Linda Deegan Woodwell Climate Research Center 508-444-1557 ldeegan@woodwellclimate.org http://orcid.org/0000-0002-1017-9599 Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Robert Buchsbaum Mass Audubon (978) 927-1122 (978) 922-8487 rbuchsbaum@massaudubon.org associated researcher Hap Garritt (508) 289-7485 (508) 457-1548 hgarritt@mbl.edu http://orcid.org/0000-0001-5912-0769 associated researcher 2001 English
Monthly (June, July, August) small nekton samplings collected by seine in the Plum Island Estuary in 1999 The collections were conducted in a manner similar to the Massachusetts Division of Marine Fisheries study in 1965, "A Study of the Marine Resources of the Parker River-Plum Island Sound Estuary, Jerome et al., 1968.
Population Dynamics Core Areas population dynamics Rowley River seine Massachusetts macrofauna crustaceans fishes Parker River Parker River National Wildlife Refuge PIE LTER Plum Island LTER Controlled Vocabulary
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https://pie-lter.ecosystems.mbl.edu/content/monthly-small-nekton-samplings-collected-plum-island-estuary-1999 Newbury Town Landing, Newbury, MA, shoreline beach seine station located on mud flats on the north shore of the Parker River several hundred meters downstream from Newbury's old town landing at the end of Cottage Street. -70.836532592773 -70.836532592773 42.762367248535 42.762367248535 Rowley River flat, Rowley, MA shore line beach seine station located on a mud flat that bordered the salt marsh on the south side of the Rowley River about 0.75 km downstream from the PIE LTER Rowley Field Station, Essex County Greenbelt property 95 Railroad Avenue. -70.854347229004 -70.854347229004 42.725841522217 42.725841522217 Great Neck, Ipswich, MA, shoreline beach seine station located several hundred meters north of DMF's 1967 Little Neck station near Pavilion Beach, a narrow strip of land that separates Great Neck from Little Neck on the western shore of Plum Island Sound. -70.791748046875 -70.791748046875 42.701618194580 42.701618194580 Knobs, Rowley, MA, shoreline beach seine station located on sound or West side of Plum Island at the end of the dirt road that extends west past the southern border of the Bill Forward pool on the Parker River National Wildlife Refuge (PRNWR). -70.799064636230 -70.799064636230 42.731391906738 42.731391906738 Nelson's Island, Rowley, MA, shoreline beach seine station located on the PRNWR at the edge of a tidal flat at the end of the dirt road that runs from the refuge parking lot at the end of Stackyard Road across the salt marsh to Nelson's Island. -70.821037292480 -70.821037292480 42.746917724609 42.746917724609 1999-06-17 1999-08-24   Survey complete Version 02: February 20, 2014, data and metadata updated to comply with importation to Drupal and LTER PASTA. Used MarcrosExportEML_HTML (working)pie_excel2007_Sep2013.xlsm 9/30/13 02:57 PM for QA/QC to EML 2.1.0 Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems LTER http://pie-lter.ecosystems.mbl.edu/ Plum Island Ecosystems
EXPERIMENTAL DESIGN AND METHODS: Macrofauna were collected at a variety of stations throughout the Plum Island Sound Estuary. Stations 1-9 represent samples collected using a 15.2 meter length beach seine and 4.8 mm (3/16 inch) mesh. Stations 10-21 represent samples collected from a small boat with a sixteen foot shrimp trawl (5/8" net with 3/16" cod end mesh). Replicate or triplicate dates represent replicate or triplicate collections for that species at that site. Seining Method The seines were 15.2 m length and either 1.2 or 1.8 m in height with a 4.8 mm (3/16 inch) square ace mesh. The middle of the seines were fitted with a bag (1.8 x 1.8 m) of the same mesh size as the wings of the net. A lead line insured that the bottom of the net remained in contact with the substrate. At each sampling station the actually sampling loci were carefully chosen after an inspection for rocks, cobbles, and any other potential impediments. Once a locus was selected, one person held one end of the net and stood at a fixed position at the edge of the water. A second person took the other end of the net and walked out in the water perpendicular to the shoreline at the point where the first person was standing. When the net was straight, it would be checked along its length to insure that it was deployed correctly. The person at the deep water end would then move toward shore describing an arc while the person at the water's edge remained fixed. Thus each seine tow covered a quarter of a circle with a radius of 15.2 m and an area of about 181 m2.  When the far end of the net was almost at the shoreline, the two people holding the ends of the net would walk toward each other and then move slowly up the beach until the net was completely out of the water. Fish and selected macroinvertebrates (decapod crustaceans) were then placed in plastic bags and stored in a cooler for later identification and enumeration back at the laboratory. Triplicate seine hauls were taken at all stations, with care taken in the second and third haul to avoid areas that had been impacted by the previous haul.  A seine team typically consisted of three or more people. In addition to the two people holding the ends of the seine, a third person checked along its length while it was being deployed to insure that it was sampling properly, i.e. lead line down, no tangles, etc. Additional people, often volunteers, helped with collecting the samples from the net after it was hauled ashore. At each seine station, temperature and salinity (by refractometer) were measured, and the depth at the deep end of the net was estimated. Almost all depths were between 0.4 and 1.0 meters. Shoreline stations sampled by beach seine. Stations 1-6 were selected to be as close as possible to shoreline stations sampled by DMF in 1966. Station 1. Great Neck, Ipswich. This station was located several hundred meters north of DMF's 1967 Little Neck station near Pavilion Beach, a narrow strip of land that separates Great Neck from Little Neck on the western shore of Plum Island Sound. The old DMF station was too cobbly at this point to reliable seine. Station 1 was located on a flat, very gently sloping sandy beach just north of an area of small rocks interspersed with salt marsh vegetation that separates the site from the northern end of Pavilion Beach. Sampling was always carried out within two hours of low tide. Station 2. Bluffs, Ipswich. This station was located on the eastern side of Plum Island Sound several hundred meters south of the private residence on Stage Island. It was in a relatively sandy area at the seaward edge of a tidal flat that extends out from Stage Island. We sampled at low tide. The gradient was gentle. Station 3. Knobs. This station was a small gently sloping sandy beach bordered by salt marsh on three sides. The station is at the end of the dirt road that extends west past the southern border of the Bill Forward pool on the Parker River National Wildlife Refuge (PRNWR). It was seined at mid to low tides. New salt marsh vegetation covered the upper edge of the beach, thus unlike DMF who reported that the beach was devoid of vegetation, this area could no longer be seined at higher tides. Station 4. Nelson's Island. This station, also on the PRNWR, was located at the edge of a tidal flat at the end of the dirt road that runs from the refuge parking lot at the end of Stackyard Road across the salt marsh to Nelson's Island. The substrate was a muddy sand with occasional disturbance by commercial clammers. Since the upper edge of the station was bordered by a steeply-banked salt marsh, it was seined at mid to low tides (2-3 hours on either side of a low tide) when the marsh was not flooded. We avoided extreme low water, because the flat sloped steeply into a channel that was too deep to allow us to extend the net to its proper length. Station 5. Subheadquarters. This station was located on the extensive mud flat just west of the maintenance buildings of the PRNWR. In sampling this station we were faced with the greatest time constraint since it was too dry during much of low tide, but could also not be seined from mid to high tide because of the steeply banked salt marsh at the upper edge of the mud flats. There was generally a 45 minute "window" between two to three hours before or after dead low where this station could be seined. This mud flat was frequented by commercial clammers. Station 6. Newbury Town Landing. This station was located on mud flats on the north shore of the Parker River several hundred meters downstream from the Newbury's old town landing at the end of Cottage Street. The old DMF sampling station was at the landing itself. We moved downstream slightly to be out of the influence of the mooring and launching area for boats. The mud flats bordered a steep salt marsh bank on the PRNWR. The soft sediments were interspersed with occasionally "clumps" of salt marsh peat that had probably slumped from the edge of the bank, thus care had to be taken to find a free area for seining. Sampling was done within three hours of maximum low water. This station had strong tidal currents, particularly as the tide approached mid tide. Station 7. Rowley River flat. This station was located on a mud flat that bordered the salt marsh on the south side of the Rowley River about 0.75 km downstream from the Ecosystems Center's Rowley Field Station at the end of Railroad Avenue. The substrate was muddy. The gradient of the mud flat was gradual across much of its breadth, however the lower end of the flat sloped off more steeply to the channel of the river. The station was seined between 1-2 hours after or before maximum low water. Identification, enumeration, and biomass of fish and decapods After field collection, the fish samples were brought back to the Ecosystems Center's Rowley River Laboratory for identification. Fish and decapod crustaceans from each replicate were sorted by species and each fish individually counted. Fish identifications were based on Bigelow and Schroeder (1953), Robins et al. 1986), Scott and Scott (1988) and an estuarine fish key developed by the Fish Ecology Laboratory of University of Massachusetts at Amherst (Basher 1989). As described above, we routinely collected decapod crustaceans, including Crangon septemspinosa, Palaeomonetes spp. and crabs. These were identified using Smith (1964) and Gosner (1971, 1978). Fish numbers were expressed as fish per 100m2.
HTL-PIE-Survey-1999_csv Monthly small nekton samplings collected in the Plum Island Estuary in 1999 HTL-PIE-Survey-1999.csv 24675 8964d178d63ca36c1a504dcf095fa634 a51c4b85889400e536bb27376c73e7ea4c447156 1 0 column , https://pie-lter.ecosystems.mbl.edu/sites/default/files/data/HTL-PIE-Survey-1999.csv Estuary Estuary name of estuary that collection occurred string name of estuary that collection occurred Sample ID Sample ID sample identification, Plum Island Fish with assigned number (PF ####) string sample identification, Plum Island Fish with assigned number (PF ####) SampleNum SampleNum sample number, matches PF # for data sorting purposes string sample number, matches PF # for data sorting purposes Site Name Site Name research site location in the estuary string research site location in the estuary Station Station Station name string Station name Rep Rep replicate seine or trawl, either A,B,C,D or E string replicate seine or trawl, either A,B,C,D or E Date Date date of collection date DD-MON-YYYY NA missing Time Time time (24 hour) of collection date hh:mm NA missing Depth Depth depth of water at collection meter real NA missing Daytime high tide (Boston) Daytime high tide (Boston) time (24 hour) of daytime high tide in Boston, MA date hh:mm NA missing Secchi Secchi secchi depth (meters) meter real NA missing Salinity Salinity salinity (ppt) partPerThousand real NA missing Temp Temp water temperature (C) celsius real NA missing Gear Gear seine (S) or trawl (T) collection string S seine | T = trawl NA missing Length of seine Length of seine total length of seine net (m) meter real NA missing Total fish species Total fish species total number of fish species caught number real NA missing Total decapods Total decapods total number of decapods caught number real NA missing Species Species Genus and species name string Genus and species name Code Code Species code (from NMFS, Woods Hole, Donald Flescher) string Species code (from NMFS, Woods Hole, Donald Flescher) Total # Total # total number collected number real NA missing Total weight Total weight total weight of total # collected (g) gram real NA missing HTL-PIE-Survey-1999_xls Excel metadata and data file associated with the csv data source file. Excel file after downloading is to be used for adding/editing new metadata and data. HTL-PIE-Survey-1999.xls 155648 21324f630706611f752dd60528645491 78599ba5d29ac02282faeb8247a918546b9c7708 application/vnd.ms-excel https://pie-lter.ecosystems.mbl.edu/sites/default/files/data/HTL-PIE-Survey-1999_0.xls document
SI unit of length A common unit of temperature a number 0.001 kg