Fish and invertebrate trawl sampling south and west of Iceland in July 2018
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| Natura: | Dataset Open Access |
| Lingua: | en |
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PANGAEA
2020
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| _version_ | 1867170100020248576 |
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| author | Ólafsdóttir, Anna H Pampoulie, Christophe |
| author_facet | Ólafsdóttir, Anna H Pampoulie, Christophe |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | This data set has trawl catch weight and biological measurements from the 2nd leg of the Icelandic part of the International Ecosystem Summer Survey in Nordic Seas (IESSNS). The survey area was from the coast, over the shelf edge and into the deep-water basins south and west of Iceland, defined as IESSNS strata 5, 6, and 12, and stratum boundaries (black solid line) are displayed on attached map "IESSNS 2018.png". The survey period is July 19th to August 1st, 2018, and samples were collected at 34 trawl stations (blue symbol on attached map "IESSNS 2018.png"). A specifically designed scientific trawl, called Multpelt832 (ICES 2013a-b, Valdemarsen et al. 2014) with cod-end mesh size of 50 mm, was used at all 34 stations. Trawl depth ranged from surface (trawl headline in surface) to 400 m depth. All trawl catch is identified to lowest possible taxonomic level, total weight of each species recorded and length of 20-50 specimen per species measured. For blue whiting (Micromesistius poutassou), herring (Clupea harengus), and mackerel (Scomber scombrus) more biological measurements are provided such as weight, sex, maturity, age, liver weight and stomach weight. Each specimen is one row in the data set file. Natantia and Scyphozoa specimen could not be identified to species, hence no individual length measurements are provided but total weight of catch per taxon is provided. For detailed information about the survey see the survey report (Ólafsdóttir and Jónsson 2019). Various information is provided about the trawling operation, weather, position, date and time. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_915969 |
| institution | PANGAEA |
| language | en |
| publishDate | 2020 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Fish and invertebrate trawl sampling south and west of Iceland in July 2018 Ólafsdóttir, Anna H Pampoulie, Christophe A9-2018; A9-2018_343; A9-2018_344; A9-2018_345; A9-2018_346; A9-2018_347; A9-2018_348; A9-2018_349; A9-2018_350; A9-2018_351; A9-2018_352; A9-2018_353; A9-2018_354-1; A9-2018_354-2; A9-2018_355; A9-2018_356; A9-2018_357; A9-2018_358; A9-2018_359-1; A9-2018_359-2; A9-2018_360; A9-2018_361; A9-2018_362; A9-2018_363; A9-2018_364; A9-2018_365-1; A9-2018_365-2; A9-2018_366; A9-2018_367; A9-2018_368; A9-2018_369; A9-2018_370; A9-2018_371; A9-2018_372; A9-2018_373; A9-2018_374; A9-2018_375; A9-2018_376; A9-2018_377; A9-2018_378; A9-2018_379; A9-2018_380; A9-2018_381; A9-2018_382; A9-2018_383; A9-2018_384; A9-2018_385; A9-2018_386; A9-2018_387; A9-2018_388; A9-2018_389; A9-2018_390; A9-2018_391; A9-2018_392; A9-2018_393; A9-2018_394; A9-2018_395; A9-2018_396; Age; Arni Fridriksson; biological measurements; Calculated average/mean values; Cloud cover; Code; Comment; Counting, visual; Country; DATE/TIME; Depth, bathymetric; DEPTH, water; Event label; Fish, wet weighed; Fish measuring board; Gonadal stage; Identification; IESSNS; IESSNS_2018; July 2018; LATITUDE; Latitude 2; Length; Liver, wet mass; LONGITUDE; Longitude 2; Mass; Mesh size; mesopelagic fish; mesopelagic invertebrates; Multipurpose pelagic trawl - 832; MULTPELT-832; Nordic Seas; Northeast Atlantic; Number of individuals; Otolith reader; Pressure, atmospheric; Sex; Station label; Stomach, wet mass; SUMMER; Sustainable Management of Mesopelagic Resources; Sweeps length; Taxon/taxa, unique identification; Taxon/taxa, unique identification (Semantic URI); Taxon/taxa, unique identification (URI); Temperature, air; Temperature, water; Towing speed; trawl catch; Trawl door horizontal opening; Trawl headline depth; Trawling distance; Trawling time; Trawl vertical opening; VID; Visual identification; Weighed (scale); Weight, total, wet; Wind direction; Wind speed; Wire length; Year of observation This data set has trawl catch weight and biological measurements from the 2nd leg of the Icelandic part of the International Ecosystem Summer Survey in Nordic Seas (IESSNS). The survey area was from the coast, over the shelf edge and into the deep-water basins south and west of Iceland, defined as IESSNS strata 5, 6, and 12, and stratum boundaries (black solid line) are displayed on attached map "IESSNS 2018.png". The survey period is July 19th to August 1st, 2018, and samples were collected at 34 trawl stations (blue symbol on attached map "IESSNS 2018.png"). A specifically designed scientific trawl, called Multpelt832 (ICES 2013a-b, Valdemarsen et al. 2014) with cod-end mesh size of 50 mm, was used at all 34 stations. Trawl depth ranged from surface (trawl headline in surface) to 400 m depth. All trawl catch is identified to lowest possible taxonomic level, total weight of each species recorded and length of 20-50 specimen per species measured. For blue whiting (Micromesistius poutassou), herring (Clupea harengus), and mackerel (Scomber scombrus) more biological measurements are provided such as weight, sex, maturity, age, liver weight and stomach weight. Each specimen is one row in the data set file. Natantia and Scyphozoa specimen could not be identified to species, hence no individual length measurements are provided but total weight of catch per taxon is provided. For detailed information about the survey see the survey report (Ólafsdóttir and Jónsson 2019). Various information is provided about the trawling operation, weather, position, date and time. |
| title | Fish and invertebrate trawl sampling south and west of Iceland in July 2018 |
| topic | A9-2018; A9-2018_343; A9-2018_344; A9-2018_345; A9-2018_346; A9-2018_347; A9-2018_348; A9-2018_349; A9-2018_350; A9-2018_351; A9-2018_352; A9-2018_353; A9-2018_354-1; A9-2018_354-2; A9-2018_355; A9-2018_356; A9-2018_357; A9-2018_358; A9-2018_359-1; A9-2018_359-2; A9-2018_360; A9-2018_361; A9-2018_362; A9-2018_363; A9-2018_364; A9-2018_365-1; A9-2018_365-2; A9-2018_366; A9-2018_367; A9-2018_368; A9-2018_369; A9-2018_370; A9-2018_371; A9-2018_372; A9-2018_373; A9-2018_374; A9-2018_375; A9-2018_376; A9-2018_377; A9-2018_378; A9-2018_379; A9-2018_380; A9-2018_381; A9-2018_382; A9-2018_383; A9-2018_384; A9-2018_385; A9-2018_386; A9-2018_387; A9-2018_388; A9-2018_389; A9-2018_390; A9-2018_391; A9-2018_392; A9-2018_393; A9-2018_394; A9-2018_395; A9-2018_396; Age; Arni Fridriksson; biological measurements; Calculated average/mean values; Cloud cover; Code; Comment; Counting, visual; Country; DATE/TIME; Depth, bathymetric; DEPTH, water; Event label; Fish, wet weighed; Fish measuring board; Gonadal stage; Identification; IESSNS; IESSNS_2018; July 2018; LATITUDE; Latitude 2; Length; Liver, wet mass; LONGITUDE; Longitude 2; Mass; Mesh size; mesopelagic fish; mesopelagic invertebrates; Multipurpose pelagic trawl - 832; MULTPELT-832; Nordic Seas; Northeast Atlantic; Number of individuals; Otolith reader; Pressure, atmospheric; Sex; Station label; Stomach, wet mass; SUMMER; Sustainable Management of Mesopelagic Resources; Sweeps length; Taxon/taxa, unique identification; Taxon/taxa, unique identification (Semantic URI); Taxon/taxa, unique identification (URI); Temperature, air; Temperature, water; Towing speed; trawl catch; Trawl door horizontal opening; Trawl headline depth; Trawling distance; Trawling time; Trawl vertical opening; VID; Visual identification; Weighed (scale); Weight, total, wet; Wind direction; Wind speed; Wire length; Year of observation |
| url | https://doi.org/10.1594/PANGAEA.915969 |