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    Records collected voluntarily and uploaded via indicia based web recording sites including iSpot, Irecord, Marine Sightings Network and Sealife Survey. iSpot records are recorded by members of the public wishing to have identifications confirmed and records from iRecord and the MBA Recording scheme are reported sightings from a wide range of recorders.

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    A detailed distribution of true crabs (Brachyura) in the North-East Atlantic.

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    Phytobenthos community data, a large portion of the data held are monitoring data submitted for the OSPAR CEMP and HELCOM COMBINE monitoring programmes and therefore follow specific monitoring programme guidelines.

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    This dataset consists of casual observations reported by members of the public.

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    "Intertidal species, effort based search undertaken by students (16+) and volunteer groups with support from an ecologist. During the twenty minute timed species search surveyors look for 22 species, 4 non native and 18 climate change indicator species within 1 of 3 habitats rockpools; boulders, crevices and overhangs; or open rock. Abundance is recorded using a simplified version of SACFORN. "

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    The dataset includes age- and length-based catch per unit effort data for commercial fish species collected by the French Channel Groundfish Trawl Survey.

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    The Beam Trawl Survey dataset includes age- and length-based catch per unit effort data for commercial fish species in ICES statical rectangles.

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    Occasional sighting of marine species recorded by academics, professionals or expert amateur naturalists.

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    <p>The dataset includes age- and length-based catch per unit effort data for commercial fish species collected during the Scottish Rockall Survey. This is a new survey from 2011, replacing historical ROCKALL survey in DATRAS.</p>

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    <p>The Fisheries and Oceans Canada ecosystem surveys are conducted annually and are a source of integrated ecosystem monitoring data. These survey data are the primary data source for monitoring trends in species distribution, abundance, and biological condition within the region, and also provide data to the Atlantic Zonal Monitoring Program (AZMP) for monitoring hydrographic conditions, along with zooplankton and phytoplankton. The surveys follow a stratified random sampling design, and include sampling using a bottom otter trawl, CTD rosette and vertical plankton tows. Data from the bottom trawl catch are used to monitor the distribution and abundance of fish and invertebrates throughout the Scotian Shelf, Bay of Fundy and Georges Bank.</p>