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The impact of fishing on benthic habitats has previously been investigated however; a conclusive classification of potentially sensitive habitats per gear type does not exist. Currently only qualitative estimates of fishery impact using Broad-scale habitat maps are possible. Here a sensitivity matrix using both fishing pressure (fishing Intensity) and habitat sensitivity is employed to define habitat disturbance categories. The predominant fishing activities associated with physical abrasion of the seafloor area are from bottom contacting towed fishing gear. The swept area of the aforementioned gear in contact with the seabed is generally considered a function of gear width, vessel speed and fishing effort (ICES. 2015). The varying characteristics of fishing gear, their interaction with the sea floor and species being targeted; provide scope for differing interactions with subsurface (infaunal) and surface (epifaunal) dwelling communities. An evaluation of the abrasion pressure and habitat sensitivity split into surface and subsurface pressure allows greater insight to the ecological effects. Fishing intensity was calculated annually and based on the area of sea floor being swept (or swept area ratio SAR) by gear type. Calculations are based on SAR’s of gear types per area, per year. Fishing pressure ranks and habitat sensitivity ranks obtained from WGSFD working group (01 WGSFD - Report of the Working Group on Spatial Fisheries Data 2015) can be incorporated within a GIS environment to existing ICES fisheries data to provide habitat disturbance maps (fishing pressure maps+ habitat sensitivity maps) ICES. 2015. Report of the Working Group on Spatial Fisheries Data (WGSFD), 8–12 June 2015, ICES Headquarters, Copenhagen, Denmark. ICES CM 2015/SSGEPI:18. 150 pp.
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Boarfish surveys have been carried out on commercial fishing vessels as part of an industry/science partnership. Boarfish surveys have taken place in the Celtic Seas around Ireland including the North Atlantic Ocean. They have taken place each July and have been collected since 2011. Outside of the spawning season many pelagic species were generally very scattered over a large geographical area and difficult to detect using acoustic methods. A cruise track was first formulated with data from previous surveys, commercial catch data and the help of the fishermen and fishing industry. Acoustic surveys for boarfish have been generally carried out on spawning and pre-spawning aggregations of boarfish to ascertain the abundance and distribution of the target species. Boarfish are the newest species surveyed by Fisheries Ecosystem Advisory Services of the Marine Institute (Ireland). Data is 100% complete for the survey years since 2011.
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Acoustic surveys have been generally carried out on spawning and pre-spawning aggregations of fish. Outside of the spawning season many pelagic species have been generally very scattered over a large geographical area and difficult to detect using acoustic methods. A cruise track was first formulated with data from previous surveys, commercial catch data and the help of the fishermen and fishing industry. This is the spatial dataset of the acoustic survey haul station locations undertaken during surveys. Acoustic surveys have taken place in the North Atlantic Ocean between Donegal and the west coast of Scotland; and in the Celtic Sea off the south coast of Ireland. Acoustic surveys have taken place on an annual frequency since 1999. Acoustic survey in fishing is one of the research methods that can detect the abundance of target species using acoustic detectors. For example, many pelagic fisheries are generally very scattered over a broad ocean and difficult to detect. Hence survey vessel with acoustic detector emits sound waves to estimate the density of plankton and fish shoal. Generally, the transducer is put under water, which is linked to an echo sounder in the vessel which records the shoals of fish as marks on a screen or paper trace. Then the density and number of marks are converted into biomass. Survey shot and haul stations have been based on acoustic survey data. The aim of an acoustic survey has been to determine the relative abundance of the target species. This information has been then used to determine catch rates and management advice for the following year. Acoustic surveys have been managed by the fisheries science section of the Marine Institute known as Fisheries Ecosystem Advisory Services who coordinated the annual surveys on board the research vessel Celtic Explorer. Data is considered a complete record of stations including only those stations between 1999 and 2009 as published on Irelands Marine Atlas.
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The prawn (Nephrops norvegicus) are common around the Irish coast occurring in geographically distinct sandy/muddy areas were the sediment is suitable for them to construct their burrows. Nephrops spend a great deal of time in their burrows and their emergence from these is related to time of year, light intensity and tidal strength. Area of interest: - Aran Grounds - Irish Sea - Celtic Sea Beam trawl tows were conducted randomly once the UWTV stations have been successfully completed. Beam trawls are used to catch Nephrops for analysis.
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This dataset represents an initial comparison between several years of hourly wave forecasts (using WAM) on a grid of points located off the Irish coast with corresponding records from a number of buoys installed pre 2005. Based on the level of agreement found the wave forecasts were then modified slightly and used to estimate the mean annual and seasonal (Spring, Summer, Autumn, Winter) theoretical wave energy resource around Ireland for the Accessible Wave Energy Resource Atlas. The Mean Theoretical Wave Energy resource (Pelamis) values are measured as lower and upper values in MW/hr as calculated by the Pelamis wave model. Mean Theoretical Wave Energy covers an area known as the Irish Exclusive Economic Zone (EEZ). Data model produced in 2005. The Pelamis Wave Model was an oceanographic model using the Pelamis wave energy converter device. The Accessible Wave Energy Resource Atlas was produced to provide data and information on the accessible wave energy resource potential around Ireland. Wave model developed by ESB International (ESBI) as part of the Accessible Wave Energy Atlas Ireland published by the Marine Institute and Sustainable Energy Authority Ireland. Model completed for time period run
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The location of hydro electricity stations around Ireland. Data was created for use in MSFD article 8, 9 10 reporting.
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Data showing connector cable from Wicklow coastline to Arklow Bank Wind turbines was created in support of Marine Strategy Franework Directive article 8, 9 10 reporting.
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Catch numbers data collected from a bottom trawl survey series: Trawl positions, duration and gear parameters; catch statistics of the target species; length frequency distributions; age, sex and maturity. The target species are: cod, haddock, whiting, saithe, hake, black and white-bellied anglerfish, megrim, plaice, sole, herring, blue whiting, mackerel, horse mackerel, blonde ray, cuckoo ray, spotted ray and thornback ray. Data coverage has been for the waters around Ireland from 10m to 180m in depth (Irish Sea, Celtic Sea, West and North of Ireland). The spatial coverage has varied from year-to year. The sampling locations have been selected from known fishing tracks while trying to ensure maximum spatial spread over the survey area. The surveys took place in February-March of 2004-2009. Samples were collected using a GOV bottom trawl (a scaled-down version of the IBTS standard, see: Manual for the International Bottom Trawl Surveys, ICES Survey Protocols SISP 1-IBTS VIII). The main purpose of the survey was to collect information on the length and age at which target species first reach maturity in the waters around Ireland. The surveys were carried out by the Marine Institute (Ireland) Fisheries Science team. All data collected on the survey are available.
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The Atlas of Commercial Fisheries around Ireland reviews the fishing activity on fish stocks of relevance to Ireland that come under the EU Common Fisheries Policy (CFP). The Atlas focuses on fishing opportunities (Total Allowable Catches – TACs), landings trends, fleet activity and the state of the resource in the waters around Ireland (principally ICES Sub-areas VI and VII). The Atlas also deals with fish stocks exploited by Ireland outside Sub-areas VI and VII. Every effort has been made to use the most up to date information available on fishing opportunities, landings, effort, and on the state of the resource base. The various ICES and STECF reports and databases together with various EU Regulations should be consulted for the definitive figures and regulatory articles. The Atlas was completed during 2009. The Atlas focus was on fisheries Data Collection, Data Management, Data Analysis, Conducting Assessments, Formulating and Providing Advice and Carrying out Scientific Research on Fish Stocks, both Nationally and Internationally. The Atlas focused on stock assessment to support European fisheries policy. Atlas completed by Marine Institute fisheries science teams. Data in atlas complete per publication date.
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The Stock Book is the annual review of Fish Stocks in any given year, the latest being 2016, with management advice for the subsequent year. The Stock Book covers fisheries and fishing activities in the greater North Atlantic Ocean, Celtic Sea, Irish Sea and Saint Georges Channel around Ireland. The Stock Book covers data collected between 2011 and 2016. Fisheries scientific advice data includes information collected from surveys and fisheries models. Its purpose has been to provide the latest impartial scientific advice on the commercially exploited fish stocks of interest to Ireland. The Stock Book 2016 was the principal annual publication of the Marine Institutes (Ireland) Fisheries Ecosystem Advisory Services (FEAS) section. The Stock Book was used by the Department of Agriculture, Marine and Food - (DAFM) at the Total Allowable Catch (TAC) negotiations with the EU in December 2016 and throughout the year at fisheries management meetings. Stock Book complete for year of publication in question.
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