Aquatic invertebrate taxonomic composition (abundance) and flow intermittency data from Little Lusk Creek and Sycamore Branch. This dataset is associated with the following publication: Crabot, J., C.P. Mondy, P. Usseglio-Polatera, K. Fritz, P.J. Wood, M.J. Greenwood, M.T. Bogan, E.I. Meyer, and T. Datry. A global perspective on the functional responses of stream communities to flow intermittence. ECOGRAPHY. Blackwell Publishing, Malden, MA, USA, 44(10): 1511-1523, (2021).

Data were collected as part of a long-term capture-recapture program to assess the population dynamics of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their spawning migrations in each year since 1995. Cormack-Jolly-Seber (CJS) open population capture-recapture models were used to estimate annual survival probabilities, and a reverse-time analog of the CJS model was used to estimate recruitment of new individuals into the spawning population. In addition, data on the size composition of captured fish were examined to provide corroborating evidence of recruitment. Separate analyses were done for each species and also for each subpopulation of LRS (i.e., lake and river spawners). Model estimates of survival and recruitment were used to derive estimates of changes in population size over time and to determine the status of the populations through 2022. Model estimates of survival, recruitment, and size composition are provided along with accompanying R code and input data.

Data were collected as part of a long-term capture-recapture program to assess the population dynamics of two long-lived, federally endangered catostomids in Upper Klamath Lake, Oregon. Lost River suckers (LRS; Deltistes luxatus) and shortnose suckers (SNS; Chasmistes brevirostris) have been captured and tagged with passive integrated transponder (PIT) tags during their spawning migrations in each year since 1995. Cormack-Jolly-Seber (CJS) open population capture-recapture models were used to estimate annual survival probabilities, and a reverse-time analog of the CJS model was used to estimate recruitment of new individuals into the spawning population. In addition, data on the size composition of captured fish were examined to provide corroborating evidence of recruitment. Separate analyses were done for each species and also for each subpopulation of LRS (i.e., lake and river spawners). Model estimates of survival and recruitment were used to derive estimates of changes in population size over time and to determine the status of the populations through 2022. Model estimates of survival, recruitment, and size composition are provided along with accompanying R code and input data.

Aquatic and terrestrial invertebrate density and biomass datasets at genus and family taxonomic levels. This dataset is associated with the following publication: Fritz, K., R. Kashuba, G. Pond, J. Christensen, L. Alexander, B.J. Washington, B. Johnson, D. Walters, W. Thoeny, and P. Weaver. Identifying invertebrate indicators for streamflow duration assessments in forested headwater streams. Freshwater Science. The Society for Freshwater Science, Springfield, IL, 42(3): 247-267, (2023).

Stream segments, aquatic organism captures, stream surveys, and road-stream crossings described by these metadata accompany a 2012 electrofishing study of the distribution and abundance of aquatic organisms (fish, lampreys, amphibians and crayfish), conducted by the U.S. Geological Survey, and the Pacific Northwest Region Aquatic and Riparian Ecosystem Monitoring Project (AREMP) of the U.S. Forest Service, in the Siuslaw National Forest in western Oregon, USA. The purpose of the study was to quantify the effectiveness of stream-road crossing restoration (culvert replacement to the stream simulation standard) in terms of numbers of fish and length of stream gained through restoration, and to quantify the continuing effects of replaced and non-replaced crossings on the probability of passage by aquatic organisms compared to stream reaches having no road crossing. The sampling design is nested in several ways; sampled stream segments (30-m electrofishing plots) were selected in a spatially balanced random sample within stream networks (contiguous spatial collections of segments within 2 km of a study culvert or road crossing). Networks themselves were randomly sampled for study from the 79 networks in the scope of inference with probability proportional to the length of stream suitable for sampling [< 25% average gradient, < 10 km2 in drainage area, and > 0.283 l.s-1 (0.01 cubic feet per second) in mean annual discharge]. The scope of inference was defined as stream within 2 km of a study crossing (303 stream-road crossings identified as potentially important to salmon and trout based on channel slope, valley bottom morphology, and stream size). At sampled segments electrofishing was used to capture aquatic organisms for identification, counting, and at a sub-sample of sites marking for capture-recapture study. Recapture passes were conducted two days after the initial electrofishing pass.

Stream segments, aquatic organism captures, stream surveys, and road-stream crossings described by these metadata accompany a 2012 electrofishing study of the distribution and abundance of aquatic organisms (fish, lampreys, amphibians and crayfish), conducted by the U.S. Geological Survey, and the Pacific Northwest Region Aquatic and Riparian Ecosystem Monitoring Project (AREMP) of the U.S. Forest Service, in the Siuslaw National Forest in western Oregon, USA. The purpose of the study was to quantify the effectiveness of stream-road crossing restoration (culvert replacement to the stream simulation standard) in terms of numbers of fish and length of stream gained through restoration, and to quantify the continuing effects of replaced and non-replaced crossings on the probability of passage by aquatic organisms compared to stream reaches having no road crossing. The sampling design is nested in several ways; sampled stream segments (30-m electrofishing plots) were selected in a spatially balanced random sample within stream networks (contiguous spatial collections of segments within 2 km of a study culvert or road crossing). Networks themselves were randomly sampled for study from the 79 networks in the scope of inference with probability proportional to the length of stream suitable for sampling [< 25% average gradient, < 10 km2 in drainage area, and > 0.283 l.s-1 (0.01 cubic feet per second) in mean annual discharge]. The scope of inference was defined as stream within 2 km of a study crossing (303 stream-road crossings identified as potentially important to salmon and trout based on channel slope, valley bottom morphology, and stream size). At sampled segments electrofishing was used to capture aquatic organisms for identification, counting, and at a sub-sample of sites marking for capture-recapture study. Recapture passes were conducted two days after the initial electrofishing pass.

Sneddon Briggs and Doyle (2002) Little River Catchment Biodiversity Assessment. Broad scale mapping based multivatiate analysis of plot data modelled across landscpae and climate strata. (VIS_ID 912)

In 2012, a program was initiated using in-stream and aerial (whole-watershed) liming to improve water quality and Brook Trout (Salvelinus fontinalis) recruitment in three acidified tributaries of a high-elevation Adirondack lake in New York State. Concurrently, macroinvertebrates were sampled annually between 2013 and 2016 at 3 treated and 3 untreated reference sites to assess the effects of each liming technique on this community. Macroinvertebrate communities were monitored at 6 study sites: T16, T8A (50 m upstream of lime application point), T8 (50 m downstream of lime application point), T6 (1230 m downstream of the lime application point), and at two unlimed reference streams, T24 and T20. T24 is of similar orientation, drainage area, discharge, and water chemistry as T16 and was selected as a reference site to assess the impacts of the watershed liming. T20 is a relatively well-buffered tributary that was monitored as a reference site for the in-stream liming effort. This dataset includes macroinvertebrate community data from 4-years (2013-2016) of macroinvertebrate sampling using artificial substrate basket samplers at six sites on tributaries to Honnedaga Lake, NY. Baskets were deployed in pairs at five stations (replicates) distributed longitudinally within each site (10 total baskets per site) and were placed on the bottom in pools where they were unlikely to become desiccated during water level fluctuations. Baskets were deployed between May 12 and May 16 and retrieved between July 10 and July 17 during each year, resulting in a colonization period of approximately two months. At the end of the colonization period, macroinvertebrates were extracted from each basket through a shaking and rinsing process. The contents from each pair of baskets were preserved together in 95-percent ethanol, resulting in 5 replicate samples collected from each site. A 200-organism subsample, or an exhaustive pick when less than 200 organisms were present, was sorted from each replicate using a gridded tray and identified to the lowest possible taxonomic resolution (usually genus or species). These identifications were then used to generate metrics of macroinvertebrate community condition for subsequent analyses. Data are provided in CSV and XLSX (MS Office 2013) format, a sample site location map is also provided (latitude/longitude datum and projection: NAD 1983 UTM Zone 18N).

OTU sequence reads by sample, along with assigned taxonomy. This dataset is associated with the following publication: Bagley, M., E. Pilgrim, M. Knapp, C. Yoder, J. Santodomingo, and A. Banerji. High-throughput environmental DNA analysis informs a biological assessment of an urban stream. ECOLOGICAL INDICATORS. Elsevier Science Ltd, New York, NY, USA, 104: 378-389, (2019).

These data were used to describe temporal trends in fish and invertebrate communities in the Scientific Investigators Report: Evaluation and Review of Ecology-Focused Stream Studies to Support Cooperative Monitoring, Fountain Creek Basin, Colorado. This data release consists of invertebrate data collected between 1985 and 2022, fish data collected between 2003 and 2022, and the input and output files from the trend analyses.