The Environment Agency undertakes fisheries monitoring work on rivers, lakes and transitional and coastal waters (TraC).

This dataset contains site and survey information, the numbers and species of fish caught, fish lengths, weights and ages (where available), for all the freshwater fish surveys carried out across England from 1975 onwards.

Notes: - These survey data are stored in an archive more commonly known as the NFPD (National Fish Populations Database). - This dataset contains Freshwater fish surveys only. - Third party data held on the NFPD are excluded from the dataset. - Some historic surveys (particularly in Anglian Central) have incorrect survey lengths and survey widths. These can be identified by a survey length of 1 and a survey width that is equal to the area. The survey areas are correct. This is due to the migration of old historic data from previous databases into the NFPD. - Approved for Access under AfA347.

Please see the Dataset Documentation for further detail.

These products are Approved for Access under AfA347.

The National Fish Populations Database (NFPD) holds information collected from fisheries monitoring work on rivers, lakes and transitional and coastal waters (TraC). This monitoring work is undertaken by the Environment Agency and by third parties. All the relevant data associated with NFPD freshwater fish surveys, such as survey information, site information, the numbers and species of fish caught, fish lengths, weights and ages (where available), can be obtained from these relational datasets. The data is provided as a set of relational data tables because there is just too much data to include all relevant information in all tables. A basic understanding of fisheries science and relational databases is assumed. Available datasets/tables: • Freshwater Fish Counts for all species for all Areas and all Years • Freshwater Salmonid Age Band (0+, >0+, age unknown) Counts for all Areas and Years • Freshwater Salmonid Age Band (0+, 1+, >1+, age unknown) Counts for all Areas and Years • Breakdown of freshwater fish count data types (individually measured, banded measured and bulk counted fish) • Individually measured freshwater fish records • Banded measured freshwater fish records • Bulk counted freshwater fish records The tables can be related to each other using any one of the unique identifiers - survey_id, survey_species_id, species_id and species_run_id. However, the Freshwater Fish Counts and the Salmonid Age Band datasets have no dependence on the other tables and can therefore also be used in isolation. Third party data and surveys not flagged as ‘Completed’ are excluded. For more information about the available datasets/tables, please see the Dataset Documentation. Attribution statement: © Environment Agency copyright and/or database right 2017. All rights reserved.

Freshwater fish are used as an indicator of stock status, water and habitat quality, artificial obstacles to migration and river flow requirements due to specific life-cycle requirements. This dataset is made up of the species count and length values from the freshwater river fish surveys conducted across Wales by Natural Resources Wales and former Environment Agency Wales. These surveys are conducted as part of on-going monitoring of fish in their natural environment for legislative requirements and to meet business drivers.

For the geospatial version of this data please see NRW_DS125743 "KiEco: Freshwater Fish - Geospatial".

The Environment Agency undertakes fisheries monitoring work on rivers, lakes and transitional and coastal waters (TraC).

This dataset includes site and survey information, together with a detailed breakdown of the salmonid age data into numbers of 0+, >0+, 1+, >1+ age bands (where available), for freshwater fish surveys carried out across England from 1975 onwards.

Notes: - These survey data are stored in an archive more commonly known as the NFPD (National Fish Populations Database). - This dataset contains Freshwater fish surveys only. - Third party data held on the NFPD are excluded from the dataset. - Some historic surveys (particularly in Anglian Central) have incorrect survey lengths and survey widths. These can be identified by a survey length of 1 and a survey width that is equal to the area. The survey areas are correct. This is due to the migration of old historic data from previous databases into the NFPD. - Approved for Access under AfA347. - The dataset 'Freshwater fish surveys (NFPD)' may also be relevant, it contains fish lengths, weights, and the raw age data (where available).

Please see the Dataset Documentation for further detail. Attribution statement: © Environment Agency copyright and/or database right 2017. All rights reserved.

Fish were captured between 2017 and 2019 at 3 locations along the Genesee River in western New York; upstream of Letchworth State Park, downstream of the falls in Letchworth State Park, and downstream (outside) of Letchworth State Park. Out of 25 total species captured, 22 were first documented below the falls in Letchworth State Park. Fish were captured using hoop, gill, and seine nets as well as electroshocking. Fish images were photographed at the time of capture and identified using markings and published sources and NYSDEC personnel for identification. The first Table (Table 2 in the manuscript) is a list of species captured, year of capture, site of capture (see Figure 1 in the manuscript for map), and whether it was novel to site B, which is the site below the falls in Letchworth State Park. Novelty to site B was based on Carlson & Daniels Atlas, if the fish hadn't been identified at this site already, it was denoted as 'novel' with a 'Y'. Appendix 1 is a review of Carl...

Data were collected to assess fish communities and estimate population size and biomass for each species at each sampling site.

National Fish Populations Database (NFPD): Freshwater Fish Counts for all Species for all Areas and all years. This is for Approval for Access product AfA347. NFPD consists of information collected from fisheries monitoring work on rivers, lakes and transitional and coastal waters (TraC). This monitoring work is undertaken by the Environment Agency.

This particular dataset reports fish counts per run, total fish counts, Carle and Strub population estimates for quantitative surveys and log abundance data (where applicable) for ALL Species (including hybrids) caught on each freshwater survey for all areas and years. Site and survey information and surveys where zero fish were recorded are also included.

Note: The initial version of this dataset (published February 2016) did not contain Carle and Strub population estimates for quantitative surveys or surveys where zero fish were recorded. Attribution statement: © Environment Agency copyright and/or database right 2016. All rights reserved.

Natural habitats and communities may change for a variety of reasons but understanding if a change has occurred and its extent requires knowing the original state. The Willamette River Decadal Assessment is an extensive survey primarily of the middle and upper portions of the Willamette River, Oregon, serving as a measurement of baseline conditions for future decades. This Willamette Decadal Assessment fish dataset consists of tabular data from freshwater fish surveys over multiple years in 2 decades, 2011-2013 and 2021-2023. Each decade contains sampling locations within the Willamette River between the mouth (confluence with Columbia River) and the upstream confluence with the McKenzie River. Sampling sites used the SLICES framework for dividing the Willamette River into approximately 1 kilometer river sections of either the mainstem river or off-channel slough areas. Thirteen sentinel slices were included in the survey each year, although sampling some slices was not permitted in certain years due to high water temperatures. Additional sampling sites were randomly selected from the remaining slices. Sampling included boat electroshocking passes and backpack electrofishing samples. Captured native and nonnative individuals were identified to species, except for lamprey. Fish observed but not captured or measured are identified by a separate code. Tabular data include information such as GPS coordinates, fish length, weight, mortality, and species.These data were collected as part of the Willamette Decadal Assessment project. The goal of this assessment is to understand fish community species composition within the Willamette River and how it might change over time, including any potential distribution shifts or changes in species richness. This dataset spans 2 decades, allowing for comparisons between decades as well as serving as a baseline for future freshwater fish surveys in the river.For more information about the SLICES framework, please see Hulse et al. (2002) and the associated website: https://hub.oregonexplorer.info (search for “Willamette Basin SLICES”).

For more information about this study and these data, see Penaluna et al. (in review).

This dataset corresponds with the inland fisheries collaboration between the Land and Water Lab at the University of Florida and Food and Agriculture Organization of the United Nations. An online survey of fisheries professionals distributed in June-September 2020 yielded 536 responses from 93 unique hydrological basins across most major freshwater habitat types. Provided here are the raw survey dataset generated from participant responses, a formatted dataset intended for reuse, a reference key to numeric values and column headers, a reference key to region identifiers, and the script used to generate the formatted dataset and figures used in the paper titled, "A global dataset of inland fisheries expert knowledge."

To address the poorly known aspects of freshwater fauna biodiversity in the Fiji Islands, a study of freshwater and estuarine fish was carried out from 2002 to 2004.

This dataset is the result of a Master of Science thesis conducted by David Boseto at the University of the South Pacific, in Suva, Fiji. The fish surveys were carried out in 66 sites in seven watersheds on the islands of Viti Levu, Vanua Levu and Taveuni.

11 new records and a new genus were added to the known freshwater fish checklist of Fiji.

Ces données ont été récoltées à bord du Lampsilis (saison 2009) et cette étude ciblait sept espèces de poissons soit le brochet, le doré, la perchaude, le meunier noir, le crapet-soleil, la barbotte brune et l’esturgeon jaune. Vingt-deux stations le long de la portion eau douce du fleuve Saint-Laurent ont été échantillonnées à l’aide d’un chalut et l'ensemble des espèces pêchées ont été recensées. Ce projet a été réalisé en partenariat avec le Ministère des Forêts, de la Faune et des Parcs du Québec (MFFP). Pour plus d’information veuillez consulter le contexte des données.

Accédez aux données dans l'application BIODIVERSITÉ.

Both native and non-native fish inhabit many lakes and ponds across Jasper National Park. Prior to stocking practices in the past, many lakes in Jasper National Park did not have fish or had a low diversity fish assemblage. These past stocking practices have altered fish communities today. Introduced non-native fish may outcompete some native fish populations and the stocking of historical natural fishless lakes may affect their food webs. Data collected during fish surveys show existing native and non-native fish species in lakes of Jasper National Park.

The U.S. Fish and Wildlife Service conducts mobile hydroacoustics surveys in select pools of the Upper Mississippi River (UMR) and other associated tributaries and water bodies, to obtain data on the relative abundance, size distribution, spatial distribution, and biomass of invasive Bighead and Silver Carp in order to evaluate mangement actions. Data are collected with two horizontally oriented split-beam transducers (200 kHz; BioSonics, Inc.) offset in angle to maximize water column coverage. Surveys occur at main channel, side channel, backwater and tributary habitats. Hydroacoustic data are typically paired with physical capture data that are collected by the USFWS and/or partner agencies. A separate data management plan exists for hydroacoustic-related physical fish sampling.

The Biodiversity Science Database is a compilation of fish community data from DFO Science Surveys. Data includes: sampling site, date, fish counts, fish species, and associated habitat information. This database was established to support fish species at risk research through the DFO Species at Risk Program and is used primarily for updating the current status of fish species at risk populations across Southern Ontario. The dataset has been constrained to sampling site characteristics for placement on Great Lakes DataStream; the original is available via the Government of Canada Open Data portal, see Data Source URL.

Standardized test-fishing with Nordic multi-mesh gillnets is a widely used method in Sweden to investigate the fish fauna in a lake. In 2005 the method became an European standard (EN 14757). Standardized test-fishing catch most of the Swedish species in a representative way, giving a good estimate of species abundance and size distribution. The results are generally used for purposes of environmental protection and fishery management.

NORS consists of thousands of test-fishing occasions back to the 1950’s. The Department of Aquatic Resources (SLU Aqua) at the Swedish University of Agricultural Sciences is responsible of collecting and checking test-fishing data generated in national and regional environmental programs, on behalf of the Swedish Agency for Marine and Water Management. SLU Aqua also collect test-fishing data from several other types of investigations in order to create a database as representative as possible. The purpose is to facilitate obtaining data of high quality for research, national investigations and reports. The database also serves as a reference for local and regional investigations. All data is available for the public.

Abstract

From summer 2020 through fall 2022, Alaska Department of Fish and Game (ADF&G), Division of Sport Fish staff will conduct a rapid, systematic inventory of anadromous and resident fish distribution and associated aquatic and riparian habitat in select drainages of the upper Tanana River and in select drainages of the Fortymile River and adjacent Yukon River drainages. This proposal is part two of a multi-year inventory effort that began in 2019, when project staff inventoried fish assemblages in Yukon & Tanana river drainages downstream of the 2020 study area. In 2020 project staff will continue where they left off and continue working upstream in those drainages. Target streams will be selected to fill gaps in coverage of the State of Alaska's Catalog of Waters Important for the Spawning, Rearing or Migration of Anadromous Fishes (AWC) in freshwater habitats expected to support anadromous fish populations likely to be impacted by human activities. Each of two crews will sample standardized target stream reaches using electro-fishers, with sufficient effort to collect all species (perhaps with the exception of rare species) of the extant fish community. At each sampling site, crews will also document standard aquatic and riparian habitat characteristics. These observations will be recorded in the Alaska Freshwater Fish Inventory database (AFFID) and made publicly available via the AFFID internet mapping service. For each water body in which anadromous fish are observed, nominations to the AWC will be submitted.

Crews sampled 135 sites from 2020–2022.

Methods

Following ADF&G's AFFI protocols (nate.cathcart@alaska.gov for specific protocols), 2 crews, each with 2 members, will use helicopters to simultaneously sample fish communities in selected study stream reaches for approximately 12 days during the summer of 2020. Target survey sites will include wadeable headwater streams sampled with a backpack electrofisher, and un-wadeable streams (including mainstem rivers) sampled with a raft-mounted electrofisher. Two helicopters will provide access to the stream study sites for headwater and un-wadeable sample crews. Sites within the study area that have the highest potential for habitat degradation will be identified through consultation with the ADF&G Division of Habitat and Federal Land managers, and any sites they identify will be given a higher sampling priority.

The proposed study area for 2020 also has an extensive road system along the Tanana River. In addition to using helicopters to access difficult-to-reach streams, project staff plan to use the road system and a jet outboard-powered 18-foot skiff to sample more easily accessed streams in the study area. This will likely extend the overall number of sites crews are able to sample this year while not requiring the added expense of helicopter charters for the entire project effort.

Study area selection

The long-term goal of the AFFI program is to complete a statewide baseline inventory of fish assemblages and associated aquatic and riparian habitats. At its inception, the AFFI program developed a systematic approach to rank and prioritize Alaska’s 139 subbasin-level hydrologic units. Subbasins were chosen because they most closely match the scale of the project study area of a typical helicopter-supported, regional baseline fish inventory. A survey priority index (SPI) of the subbasins was then developed based on: amount of past survey effort in the subbasin, removing lands considered to have adequate protection from anthropogenic degradation such as National Parks & Preserves, the ratio of current AWC coverage to the total length of all mapped streams within the subbasin, and a Human Activity Index (HAI) created by The Nature Conservancy (Feirer et al. 2006), assessing 4 types of human activities that could impact Alaska ecosystems. At the time of this proposal, the AFFI program has surveyed 68 of the 139 subbasins that were originally prioritized. This prioritization method has been documented by AFFI staff in an unpublished internal document that is available upon request.

The 74,982 square kilometer study area comprises all or some of the subbasins of the Upper Tanana River (e.g., Chena River, Healy Lake-Tanana River, Nebesna-Chisana River, Salcha River, Tok-Tanana River, and Upper Copper River subbasins) and in select subbasins of the Yukon River (e.g., Fortymile River and Ladue River-White River). The Upper Yukon region and a few of the more northeasterly subbasins of the Tanana River will be sampled in 2019. The remaining upper Tanana River subbasins and any other remaining subbasins in the entire upper Yukon and upper Tanana region will be sampled in 2020 and if necessary, 2021.

Target stream selection

The number of headwater streams in the study area will exceed the project’s limited sampling effort capacity; therefore, a subset of mapped streams, comprising the longest stream segments not currently listed in the AWC, will be selected as target streams. The headwater team will sample approximately six to eight headwater streams per day and the raft team will float and sample one un-wadeable stream per day, including a reach from all mainstem rivers in the study area.

Based on past AFFI projects, it is estimated that a minimum of 72 headwater target streams will be sampled, and 12 un-wadeable target streams will be rafted and sampled during the course of the 12 field days. However, project staff are pursuing additional funding opportunities and anticipate being able to complete a full 20-day field survey, which would allow field staff to sample a minimum of 100 headwater target streams and approximately 20 un-wadeable target streams provided there are no other weather or logistical problems preventing sampling all 20 days.

Sampling methods

At selected reaches, the fish community will be sampled with standardized methods and effort, according to AFFI protocols. Fish will typically be collected by single-pass electrofishing (other non-lethal gear types, such as beach seines, angling or minnow traps, may be deployed if conditions prohibit safe or effective electrofishing). Electrofishing is the principal fish collection gear because it is recognized as the most comprehensive and effective method for collecting fish in lotic systems.

At all target streams, a length of stream (referred to as a reach) standardized by stream width (i.e., 40 or 120 wetted-channel-widths in wadeable and un-wadeable target streams, respectively, or in large rivers, the maximum length of stream that can be sampled in 1 day), will be sampled to include all aquatic habitat types within that reach. Collected fish will be identified to species, tallied, fork length measured, and examined for external abnormalities. Additionally, standard water chemistry, channel morphology, and riparian habitat parameters will be recorded at each sample site. To enhance data quality and completeness and data entry efficiency, all collected data will be entered each day into an integrated database installed on a notebook computer.

Usage notes

Read the metadata file for assistance with the dataset.

Data can be visualized here:

https://www.adfg.alaska.gov/sf/SARR/AWC/index.cfm?ADFG=main.interactive

Once in the mapper, the default visual is the Anadromous Waters Catalog. Clicking on the "AFFI" tab along the top banner produces all the site visits by this project.

For more help, click the red 'User Guide' link in the secondary banner above the map.

Any other questions or data needs, please contact the program biologist at nate.cathcart@alaska.gov

Funding

Pacific Coastal Salmon Recovery Fund, Award: 53013 (administered by the Alaska Sustainable Salmon Fund)

The state of Hidalgo (Mexico) is an important region from the point of view of biodiversity. However, there exists a significant gap in accessible knowledge about species diversity and distribution, especially regarding to freshwater ecosystems. This dataset comprises the sampling records of two projects developed in Hidalgo between 2007 and 2009 about the freshwater fish communities of Tecocomulco lake and rivers belonging to the Metztitlán Canyon Biosphere Reserve. It contains the taxonomic identity (species level) and basic biometric data (total length and weight) as well as date of collection and coordinates of more than 9000 specimens. This dataset is the primary result of the first and unrepeated exhaustive freshwater fish’s survey of Metztitlán Canyon Biosphere Reserve and Tecocomulco lake. It incorporates seven more species to the regional fish fauna, and new exclusive biometric data of ten species. This dataset can be used by studies dealing with, among other interests, North American freshwater fish diversity (species richness, distribution patterns) and biometric analyses, useful for the management and conservation of these areas. The complete dataset is also provided in Darwin Core Archive format.

This excel contains results from the 2017 State of Narragansett Bay and Its Watershed Technical Report (nbep.org), Chapter 20: "Freshwater Fish Communities." Freshwater fish were sampled at sites between 1992 and 2014 across the Narragansett Bay, Little Narragansett Bay, and Southwest Coastal Ponds watersheds. Data were obtained from RIDEM Division of Fish and Wildlife (DFW 2004, 2013) and the Massachusetts Division of Fish and Wildlife (MDFW 2014) and Connecticut Department of Energy and Environmental Protection (CT DEEP 2014). For Rhode Island, data were collected from April 29, 1992, to September 30, 2009, as part of a multi-year statewide survey of fish communities in rivers and streams; survey work continued on a less frequent basis after 2002. For Massachusetts, sample dates ranged from September 21, 1994, to October 14, 2014. For Connecticut, sample dates ranged from June 14, 1993, to Augst 6, 2014. The Estuary Program and partners calculated two metrics that are used by researchers and resource managers in Massachusetts and Connecticut: (a) the percent relative abundance of cold-coolwater fish and (b) the percent relative abundance of fluvial fish. This analytical approach was also supported by RIDEM. Metrics were summarized at the HUC10 and HUC12 scales, for the entire period of sampling (1992-2014) and for 2002-2014, the time period reported on in the Technical Report (to provide consistency with other existing reports). Due to sparse sampling and limited repeat sampling in the dataset across the watersheds, this dataset provides a preliminary baseline with no trend analysis to identify changes in the fish communities over time. More information about development of methods is available in the Technical Report.

The University of Wyoming Stream Species Dataset is a species presence dataset containing presence locations for 116 freshwater fish species in Wyoming, Montana, and the surrounding states. It contains data from 40,490 unique sample events (location, month, year). Data was derived from multiple sources (Table 1) and limited to fish occurrences in rivers and streams.

This dataset mainly includes the survey of the basins, rivers, sampling points, dates, species, methods of use, and quantities of fish. The dataset is provided by the River Situation Survey Database Management System of the Water Resources Agency's Water Resources Planning and Experimental Institute, integrating the river situation data completed by the Water Resources Agency over the years. It serves as a unified management and inquiry website for river situation survey data. It is hoped to be used as reference data for river water resources management, ecological environment maintenance, and environmental improvement planning for river region structures. The key content of this dataset lies in the species, locations, and time of fish, allowing users to further analyze the spatiotemporal distribution of species. According to the operational points of the river situation survey, the survey should be carried out for at least one year, with a minimum of once per quarter, and the survey frequency should try to avoid using adjacent months as data for two seasons. The survey time should grasp the spawning period, migration period, and activity period of each fish species.