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TMWRF benthic macroinvertebrate monitoring program

Submitted by: lynellg on 22/08/2008   Tags: ,
Abstract: 
Four sites on mainstem Truckee River are monitored for benthic macroinvertebrates: three below TMWRF discharge point, and one above. Riffle habitat is sampled in 10-15 inches of water, with substrate between fines and four inch cobble size.
Contacts
Resource Provider: 
City of Sparks, Nevada
Primary Contact: 
Chuck Oliveira

Equipment used: Hess sampler with 500 mesh netting. Area sampled: 0.256 m2 per sample, and three replicate samples are taken at each site. Subsampling: approx. 10-15% of samples must be halved due to richness, but counts over 200 are maintained whenever possible. Taxonomic level:  to genus and species, except for Diptera chironomids, which are identified to subfamily or tribe level. Oligochaetes are identified to family level.
Replication as QA/QC: ?
QA: Type specimens are confirmed by Idaho State University, Stream Ecology Center; Type specimen collection established and archived to demonstrate past id's and for future verification of specimens. Library of general and taxon specific texts and monographs for sample handling, collection and identification. Bibliography of texts, keys, monographs, etc. are available.
Analysis/metrics: Idenfication and enumeration of invertebrates and invertebrate biomass determinations. No metrics are applied.
Habitat assessment: ?
Data Availability and Mode of Storage: TMWRF FoxPro database and hard copies of quarterly data for past 23 years.
Written protocols?
Purpose of monitoring: NPDES permit for TMWRF.

Geographic Coverage: 
Four sites: GPS coordinates. #3 at McCarran bridge. 39 deg/ 31'02" x 119 deg 44'23" #4 Lockwood. 39 deg/ 30'33" x 119 deg 38'58" #5 Clark. 39 deg. 33'80" x 119 deg 29'29" #7 Dead Ox. 39 deg. 44'44" x 119 deg 19'20"