The Blend was the system used by the NMFS Alaska Regional Office to monitor groundfish catch from 1991 until 2002. The Blend system combined data from industry production reports and observer reports to make the best, comprehensive accounting of groundfish catch. These data were used to manage quotas for groundfish in the Gulf of Alaska, Bering Sea, and Aleutian Islands. The blend catch data were also used as the basis for computing estimates of prohibited species bycatch. Prohibited species include Pacific halibut, salmon, herring, and crabs. Blend data were used for numerous regional and national reports, fishery stock assessments, and analysis of fishery management plans. The Blend system used a combination of industry reports and observer data. For shoreside processors, Weekly Production Reports (WPR) submitted by industry were considered the best source of data for retained groundfish landings. All fish delivered to shoreside processors were weighed on scales, and these weights were used to account for retained catch. Observer data from catcher vessels provided the best data on at-sea discards of groundfish by vessels delivering to shoreside processors. Discard rates from these observer data were applied to the shoreside groundfish landings to estimate total at-sea discards from both observed and unobserved catcher vessels. For observed catcher/processors and motherships, the WPR and the Observer Reports recorded estimates of total catch (retained catch plus discards). If both reports were available, the Blend System selected one of them for incorporation into the catch database. If the vessel was unobserved, only the WPR was available. In 2003, the Catch Accounting Sytem was implemented and took advantage of industry reports at a more detailed level, especially from shoreside processors. The Blend system was based on weekly data from processors and was not capable of accounting for some management programs -- including cooperatives, sideboards, complex seasonal allocations, Harvest Limit Area quotas, and quotas assigned to vessels of a particular size class. The Catch Accounting System replaced the Blend as the tool used by the National Marine Fisheries Service to estimate total catch in the groundfish fisheries off Alaska.

The Catch Accounting System (CAS) creates total catch estimates for the groundfish fisheries in the Bering Sea/Aleutian Islands and Gulf of Alaska. Each year, quotas are established in the CAS that match the annual harvest specification tables for federally managed groundfish fisheries off Alaska. The output of the CAS is the total amount of groundfish that is retained and the amount that is discarded at sea. In addition, the system creates estimates of the total amount of non-groundfish species -- both prohibited species and non-target species -- that are caught in the groundfish fisheries. Prohibited species catch (PSC) consists of salmon, halibut, and several species of crab. All the PSC species have economic value in non-groundfish fisheries and therefore cannot be retained in the groundfish fisheries. Non-target catch are species like coral, sponges, etc., and catch of these species needs to be calculated in order to evaluate the impact of the groundfish fisheries on the ecosystem. The CAS uses a combination of industry reports and onboard observer information to provide an estimate of total catch and bycatch. Industry reported data consists of catch (landing reports) and processed product amounts (production reports), and these reports are electronically recorded and submitted to NMFS via eLandings. The observer data are collected by the Alaska Fisheries Science Center (AFSC) using a stratified sampling design. Other sources of information come from the Alaska Commercial Fisheries Entry Commission (CFEC), which issues permits and vessel licenses, and Vessel Monitoring Systems (VMS), which collect the position, time at a position, and course and speed of fishing vessels.

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The GOA/AI Bottom Trawl Estimate database contains abundance estimates for the Alaska Biennial Bottom Trawl Surveys conducted in the Gulf of Alaska and the Aleutian Islands in alternate years. The estimates build upon raw and summary data available from the RACEBASE database and include calculated catch-per-unit-effort (cpue)s for principal species of groundfish and key invertebrates for each survey region. The cpues are averaged by survey strata, and then average cpues are multiplied by stratum areas which results in estimates of biomass and numerical abundance. Length and age data are combined with abundance to estimate the population at length and sex and population at age and sex.

This project was initiated in response to regulation 50 CFR 660.114, which mandates that economic data be collected from every participant in the trawl rationalization program. The data are collected annually from catcher vessels, catcher processors, motherships, first receivers, and shorebased processors through paper-based forms. The four forms (specific to entity type) are mailed annually in May, and collect data about the fishing, buying, and processing information from the previous year. The entity must submit their data by September 1 in order to renew their limited entry trawl permits, reissue their quota share, vessel accounts, and receive their first receiver site licenses. The data, reports, tech memos, and academic papers are used by Northwest Region staff, Pacific Fishery Management Council (PFMC), and headquarters staff to inform management decisions, and to monitor the effects of the program. Cost earnings data for catcher vessels in trawl rationalization program.

The data set contains trip-level and annual expense and revenue variables. The trip-level survey collects information about dockside revenues and operating costs associated with individual fishing trips. The annual survey requests information about revenues and fixed costs on an annual basis.

Vessel (at-sea) production reports are mandatory reports submitted by catcher/processors and motherships that are issued a Federal Fishing Permit. These reports document groundfish production in post-processed product weight by species, gear type, area fished, and product type. Initially reported weekly, at-sea production reports transitioned to daily reports in 2009. The weight of each species of fish is reported by product code (e.g., fillets, minced fish, surimi, etc.). The product weight is converted to a pre-processed (round) weight of fish by expanding the product weight using product recovery rates (PRR). Standardized PRRs are published in Federal regulations for product types and species combinations (50 CFR 679 Table 3).

This database contains a time series of consumer-level prices for a sample of retail markets in Honolulu between 2007-2011. Data include weekly prices for fish species prevalent in Honolulu retail seafood markets. Additionally, each record contains information on the product form, origin of the fish (if known), labelling schemes, quality (where applicable), and the use of preservation methods (such as CO-treatment).

These data represent a cost-earnings study of the main Hawaiian Island Charter fishing fleet in 2012. Data collected include fisher classification, vessel characteristics, levels of investment, trip-level expenditures, fishing behavior, market participation, social aspects of the fishery, and demographics.

Commercially available regional economic data for Alaska fisheries [such as IMpact analysis for PLANning (IMPLAN)] are unreliable. Therefore, these data need to be either collected or estimated based on more reliable information. These data have been collected or estimated for important economic variables such as cost, employment, and factor income (labor income and capital) for Alaska fisheries. The data thus collected or estimated have been used to develop regional economic models for Alaska fisheries in order to estimate the economic impacts of Alaska fisheries.