Now showing items 1-20 of 1729

    • International Blue Whiting Spawning Stock Survey (IBWSS) Spring 2024

      Marine Institute; Wageningen Marine Research; Institute of Marine Research; Faroe Marine Research Institute; Danish Institute for Fisheries Research; Spanish Institute of Oceanography; Thünen Institute (Marine Institute, 2024)
      Coordination of the survey was initiated at the meeting of the Working Group on International Pelagic Surveys (WGIPS) in January 2024 and continued by correspondence until the start of the survey. During the survey, effort was refined and adjusted by the survey coordinator (Norway) using real time observations.
    • National Survey Of Sea Lice (Lepeophtheirus salmonis Krøyer and Caligus elongatus Nordmann) on Fish Farms in Ireland – 2023

      D'Arcy, J.; Kelly, Suzanne; McDermott, Tom; Casserly, Joanne; Power, Ayesha; Waters, Catherine; O’Donohoe, P.; Ruane, Neil M. (Marine Institute, 2024)
      Farmed stocks of Atlantic salmon in Ireland are inspected on 14 occasions throughout the year to monitor sea lice levels as part of a national programme. Sea lice are a naturally occurring parasite found on marine fish, including salmonids. They are small ecto-parasitic copepod crustaceans and there are approximately 559 species. The objectives of the National Sea Lice Monitoring Programme are: <br>To provide an objective measurement of infestation levels on farms. <br> To investigate the nature of infestations. <br> To provide management information to drive the implementation of control and management strategies. <br> To facilitate further development and refinement of this strategy. <br>The sea lice control and management strategy has five principal components: <br> Separation of generations. <br> Annual fallowing of sites. <br> Early harvest of two-sea-winter fish. <br> Targeted treatment regimes, including synchronous treatments. <br> Agreed husbandry practices.
    • Explorers FinTastic Sharks+ Teacher's Planning Guide—Delivering a FinTastic Sharks+ Project with your Class

      Dromgool-Regan, Cushla (Marine Institute, 2024-05)
      TThe 'Explorers FinTastic Sharks+ Teacher's Planning Guide—Delivering a FinTastic Sharks+ Project with your Class' provides an introduction to the Explorers FinTastic Sharks+ resources, with links to the information book, children's workbook, activity sheet, presentations, identification key, and poster. A table with cross-curricular lesson plans and links to the Irish Primary School Curriculum Framework (2023) competencies and skills is provided to guide lessons that could be carried out in class and on the shore.
    • FIN-TASTIC SHARKS+ Pups and Mermaids Purses Class Presentation

      McCrea, Mona; Dromgool-Regan, Cushla (Marine Institute, 2024-01)
      Explorers Fin-Tastic Sharks+ Pups and Mermaid's Purses for the class presentation introduces children to how sharks and skates are born.
    • Explorers Fin-Tastic Sharks+ An Introduction to Elasmobrachs Class Presentation

      McCrea, Mona; Dromgool-Regan, Cushla (Marine Institute, 2024-01)
      This PowerPoint presentation, 'Explorers Fin-Tastic Sharks+ An Introduction to Elasmobranchs Class Presentation,' is by Mona McCrea and Cushla Dromgool-Regan. The presentation is full of photos, graphics, and fun facts that aim to inform and engage everyone in our love of sharks, skates, and rays in Ireland and around the world.
    • Status and restoration of native oysters in Galway Bay 2018-2023: Final report January 2023 to the Marine Institute

      Tully, Oliver; White, Emma; Kelly, Diarmuid; O' Halloran, Gerry; Chopin, Nicolas; Daly, Patricia (Marine Institute, 2024)
      The status of native oyster populations in Galway Bay, and other areas in Ireland and Europe, has declined in recent decades. Since 2017, supported by the European Maritime and Fisheries Fund and the Irish Government, various projects have been undertaken to identify pathways to restoration. A number of projects to characterize the distribution and abundance of oysters in Galway Bay and post settlement growth and survival have been completed. Spat have been produced on shell (cultch) in spatting ponds for distribution to enclosures and to the seabed. Small and large scale trials to increase shell cover and spat fall in fishery order areas have been completed. Data on the prevalence and intensity of infection of oysters with the parasite Bonamia ostrea since the 1980s have been compiled and new data collected. The effects of temperature and salinity on oyster survival and feeding rates were estimated and used to identify areas of the Bay that posed high risk to oysters by combining results with a high resolution hydrodynamic model. These projects are described in this report
    • Explorers Ocean Literacy, Engagement & Impact Report 2023

      Mills, Gillian; Dromgool-Regan, Cushla; Burke, Noirin (Marine Institute, 2024-04-26)
      The Explorers Ocean Literacy, Engagement & Impact Report 2023 highlights the Marine Institute Explorers Education Programme activities, which aim to promote ocean literacy in schools. The report provides qualitative and quantitative figures showing children's and teachers' engagement. The report also highlights teachers' training, student teachers' training, and the publication of resources, media and events.
    • Post breeding and wintering digital video aerial surveys of seabirds and marine mammals in coastal waters, Blasket Islands to Slyne Head: Final report December 2020 to the Marine Institute.

      HiDef Aerial Surveying Limited (Marine Institute, 2020)
      In October 2020, HiDef Aerial Surveying Limited (‘HiDef’) was commissioned by Marine Institute to undertake a programme of high-resolution digital video aerial surveys over an extended area of coastal waters off the west coast of Ireland. The core objective was to ascertain data on the distribution and population estimates of seabirds in coastal waters in the post-breeding and wintering season. In addition, data on other avian species (shorebirds and waterfowl) and marine mammals were also collected.
    • Digital Aerial Seabird and Marine Megafauna Survey West Coast of Ireland: Final reports July 2020 to the Marine Institute

      APEM (Marine Institute, 2020)
      APEM were commissioned by Marine Institute to provide digital aerial surveys of the west coast of Ireland in summer 2020. The main objective of the work was to deliver survey data and report on the outcome of the digital aerial surveys regarding seabirds and marine megafauna within the defined target area. This report describes the methodology and results of the survey.
    • Digital video aerial survey of birds in intertidal habitats of Wicklow: Final report January 2019 to the Marine Institute

      HiDef Aerial Surveying Limited (Marine Institute, 2019)
      In winter 2018/19 Marine Institute Ireland commissioned HiDef Aerial Surveying Limited (‘HiDef’) to undertake a programme of high-resolution digital video aerial marine megafauna, ornithological and human activity surveys over four sites along the east Irish coast. Specifically, the surveys were commissioned to assess common scoter Melanitta nigra numbers and distribution. In the process of collecting this data was collected relating to a number of other species present at the survey sites.
    • Digital video aerial survey of birds in intertidal habitats of Rosslare Bay: Final report January 2019 to the Marine Institute.

      HiDef Aerial Surveying Limited (Marine Institute, 2019)
      In winter 2018/19 Marine Institute Ireland commissioned HiDef Aerial Surveying Limited (‘HiDef’) to undertake a programme of high-resolution digital video aerial marine megafauna, ornithological and human activity surveys over four sites along the east Irish coast. Specifically, the surveys were commissioned to assess common scoter Melanitta nigra numbers and distribution. In the process of collecting this data was collected relating to a number of other species present at the survey sites.
    • Digital video aerial survey of birds in intertidal habitats of Gormanstown: Final report March 2019 to the Marine Institute.

      HiDef Aerial Surveying Limited (Marine Institute, 2019)
      In winter 2018/19 Marine Institute Ireland commissioned HiDef Aerial Surveying Limited (‘HiDef’) to undertake a programme of high-resolution digital video aerial marine megafauna, ornithological and human activity surveys over four sites along the east Irish coast. Specifically, the surveys were commissioned to assess common scoter Melanitta nigra numbers and distribution. In the process of collecting this data was collected relating to a number of other species present at the survey sites.
    • Digital video aerial survey of birds in intertidal habitats of Dundalk Bay: Final report January 2019 to the Marine Institute

      HiDef Aerial Surveying Limited (Marine Institute, 2019)
      In winter 2018/19 Marine Institute Ireland commissioned HiDef Aerial Surveying Limited (‘HiDef’) to undertake a programme of high-resolution digital video aerial marine megafauna, ornithological and human activity surveys over four sites along the east Irish coast. While the survey programme was commissioned to assess common scoter Melanitta nigra numbers and distribution, a single survey of Dundalk Bay was commissioned as part of the programme to assess the numbers of shorebirds at this site.
    • Atlas of Commercial Fisheries around Ireland, fourth edition

      Gerritsen, Hans D (Marine Institute, 2024)
      This atlas provides a series of detailed maps of commercial fishing activity around Ireland with the aim of providing insights into fishing activities and fisheries resources. The atlas contains maps of: <br><br> * Fishing effort of vessels of all nationalities by gear type inside the Irish Exclusive Economic Zone (EEZ); <br><br> * Fishing effort of Irish vessels by gear type in all areas where they operate; <br><br> * Landings taken by Irish vessels for the main commercially exploited species.<br><br> The atlas is the fourth of its kind and is based on data from fishing vessels of ≥12m in length over the period 2018-2022.<br><br> The maps are available for download in geotiff format from: https://doi.org/10/mfb7. As new data becomes available these online datasets will be updated
    • Year in Review 2023

      Marine Institute (Marine Institute, 2024)
      The Year in Review 2023 is a snapshot of some of the Marine Institute’s many highlights and achievements during a busy and productive year.
    • Correlation Between Reef Terrain Variables and Species Diversity in Spiny Lobster Habitat

      O'Keeffe, Eimear; Scally, L.; Clarke, S.; Pfeiffer, N.; Smith, Brian; Tully, Oliver (Marine Institute, 2024)
      Crayfish or spiny lobster occur in physically complex reef habitat in shallow waters off the west coast of Ireland. These habitats provide shelter for larvae that are settling out from the overlying water column and for juvenile and adult lobsters that use these areas to shelter and forage. Fisheries for spiny lobster occur in these areas and remove lobsters from the reef. The consequence of this for the structure and function of reef habitat is unknown. In this study the distribution of reef habitat was estimated from multibeam acoustic data collected in previous campaigns by the INFOMAR programme. Sub-sets of this area were re-mapped at higher resolution to provide further detail of the topography of the reef from which terrain variables were derived. Underwater video and SCUBA methods were used to identify the flora and fauna in areas with different topographies. Weak correlations between the terrain variables and the biological data were found. This was used to model the distribution of areas of high and low biodiversity over broader areas where only terrain data were available. Capacity to model the distribution of biological communities and crayfish over broad areas using physical terrain data remains difficult. Other physical variables that may be important in regulating the biology of reef need to be included and the association of crayfish with particular types of reef terrain needs to be established by higher resolution sampling. The benefits of the work reported here include increased capacity to monitor the distribution of biodiversity in marine reef habitats, to detect change that may be brought about by sector activities such as fishing or climate change, to estimate the population size of exploited reef species for fisheries management and to identify positive changes to biodiversity and lobster abundance that may occur through spatial management of reef habitat.
    • Celtic Sea Herring Acoustic Survey Cruise Report 2023, 09 - 29 October, 2023

      O'Donnell, Ciaran; O’Malley, M.; Mullins, Eugene; Daly, Eoghan; Keogh, Niall; McBride, Lauren (Marine Institute, 2024)
      The primary objectives of this survey were: <br><br> *Carry out a two phase survey cruise track covering the core survey area <br><br> *Carry out additional adaptive surveys as required in areas of interest <br><br> *Collect biological samples from directed trawling on insonified fish echotraces <br><br> * Collect biological data on the age, length and maturity of herring and sprat <br><br> *Determine an age stratified estimate of relative abundance of herring within the survey area (ICES Divisions VIIj, VIIg and VIIaS) <br><br> *Determine an estimate of relative abundance of sprat, anchovy and sardine within the survey area (ICES Divisions VIIj, VIIg and VIIaS) <br><br> *Collect physical oceanography data from vertical profiles from a deployed sensor array <br><br> * Collect biological samples of sprat and herring for genetic analysis on stock origin studies. <br><br> * Visual surveys to determine the distribution and abundance of apex predators (marine mammals, tuna and seabirds)
    • Shellfish Stocks and Fisheries Review 2023: an assessment of selected stocks

      Marine Institute; Bord Iascaigh Mhara (Marine Institute, 2023)
      This review presents updated information on the status of selected shellfish stocks in Ireland for 2023. In addition, data on the fleet and landings of shellfish species (excluding Nephrops) are presented. The intention of this annual review is to present stock assessment and management advice for shellfisheries that may be subject to new management proposals or where scientific advice is required in relation to assessing the environmental impact of shellfish fisheries especially in areas designated under European Directives. The review reflects the recent work of the Marine Institute (MI) in the biological assessment of shellfish fisheries and their interaction with the environment.
    • Newport Research Facility, Annual Report No. 67, 2022

      Marine Institute (Marine Institute, 2023)
      This report represents a continuation of the scientific aspects of the Annual Reports published by the Salmon Research Agency of Ireland, now integrated into the Fisheries Ecosystem Advisory Services Group (FEAS) of the Marine Institute. The data presented creates a unique record of fish rearing and wild fish census data for the past 50 years. This data is an essential component in the local, regional and national management of salmon, sea trout and eel and is becoming ever more valuable in the light of increasing pressures on natural stocks, such as exploitation, habitat degradation and global climate change scenarios. The fish monitoring facilities in Newport, along with the reared and ranched salmon stocks held in Burrishoole, are also essential for supporting projects such as development of novel enhancement techniques, alternative stocks and ranching and evaluation of interactions between farmed, ranched and wild strains. An expanding programme in the Burrishoole system is including ecological and genetics research into eel, sticklebacks and stock dynamics of juvenile salmonids and eels.