Fish weir sampling, SERC, Edgewater, MD

The fish weir was initially constructed in March 1983. It is located at the mouth of Muddy Creek, a primary tributary of the Rhode River, and consists of a series of fences designed to funnel fish into two openings, one facing upstream and one facing downstream. At approximately weekly intervals, nets are deployed at each opening for a period of twenty-four hours, after which time all fish are identified to species, counted and a subset measured. Over fifty species of fish and invertebrates have been collected since weir sampling was initiated in 1983. The majority of these species are rare or occur in low abundances; five species, mummichog, Atlantic silverside, Atlantic menhaden, sheepshead minnow and spot, account for 95% of the total abundance. Other frequently encountered species include blue crabs, white perch, striped bass, pumpkinseed, bay anchovy and gizzard shad.

Data e Risorse

Questo dataset non ha dati

Campo	Valore
access_constraints	["Use Constraints: Collaboration Required", "Access Constraints: Available by request"]
bbox-east-long	-76.55
bbox-north-lat	38.87
bbox-south-lat	38.87
bbox-west-long	-76.55
contact-email	hines@serc.si.edu
coupled-resource	[]
dataset-reference-date	[{"type": "publication", "value": "2000-04-12"}]
frequency-of-update	asNeeded
licence	["\nAlthough these data have been processed successfully on a computer system at the\nSmithsonian Environmental Research Center, no warranty expressed or implied is\nmade regarding the accuracy or utility of the data on any other system or for\ngeneral or scientific purposes, nor shall the act of distribution constitute any\nsuch warranty. This disclaimer applies both to individual use of the data and\naggregate use with other data. It is strongly recommended that these data are\ndirectly acquired from a Smithsonian Environmental Research Center server, and\nnot indirectly through other sources which may have changed the data in some\nway. It is also strongly recommended that careful attention be paid to the\ncontents of the metadata file associated with these data. The Smithsonian\nEnvironmental Research Center shall not be held liable for improper or incorrect\nuse of the data described and/or contained herein.\n"]
metadata-date	2001-01-09
metadata-language	eng; USA
metadata_type	geospatial
progress	underDevelopment
resource-type	dataset
responsible-party	[{"name": "Smithsonian Environmental Research Center", "roles": ["pointOfContact"]}]
spatial	{"type": "Point", "coordinates": [-76.55, 38.87]}
spatial_harvester	true
temporal-extent-begin	1983-03-05
Gruppi	AmeriGEOSS National Provider North America
Tag	1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 amerigeo amerigeoss chesapeake-bay ckan downstream edgewater fish-sampling fish-weir geo geoss maryland md muddy-creek national north-america rhode-river united-states upstream usa
isopen	False
metadata_created	2025-11-22T13:56:40.453713
metadata_modified	2025-11-22T13:56:40.453718
notes	The fish weir was initially constructed in March 1983. It is located at the mouth of Muddy Creek, a primary tributary of the Rhode River, and consists of a series of fences designed to funnel fish into two openings, one facing upstream and one facing downstream. At approximately weekly intervals, nets are deployed at each opening for a period of twenty-four hours, after which time all fish are identified to species, counted and a subset measured. Over fifty species of fish and invertebrates have been collected since weir sampling was initiated in 1983. The majority of these species are rare or occur in low abundances; five species, mummichog, Atlantic silverside, Atlantic menhaden, sheepshead minnow and spot, account for 95% of the total abundance. Other frequently encountered species include blue crabs, white perch, striped bass, pumpkinseed, bay anchovy and gizzard shad.
num_resources	0
num_tags	37
title	Fish weir sampling, SERC, Edgewater, MD