Mesopelagic fish collected during Maria S. Merian cruise MSM26, spring 2013
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PANGAEA
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| Autores principales: | , |
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| Formato: | Dataset Open Access |
| Lenguaje: | en |
| Publicado: |
PANGAEA
2014
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| Acceso en línea: | |
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| _version_ | 1867168427047649280 |
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| author | Walsh, Harvey Joseph Hare, Jonathan A |
| author_facet | Walsh, Harvey Joseph Hare, Jonathan A |
| collection | Datos científicos de ciencias marinas y ambientales |
| contents | Mesopelagic fish were collected using a 1 m**2 Double-MOCNESS (Multiple Opening and Closing Net and Environmental Sensing System) and 4.5 m**2 IKMT (Isaacs-Kidd midwater trawl). The main portion of the IKMT was 20 mm knotted nylon, and the tail bag was 3 mm knotless nylon. Oblique IKMT tows were made to a maximum depth of 500 m at a tow speed of 3.5 knots. The original cruise plan intended for nighttime IKMT tows, but tow times varied due to operational constraints. The MOCNESS was equipped with 20 nets of 333 µm mesh size; 10 nets per side. The towing speed was 2 knots. Samples were collected to a maximum depth of 1250 m. The first oblique nets sampled from the surface to the max depth, and the other nets sampled depth stratified bins of the water column. MOCNESS hauls were performed during day and night to investigate diel vertical migrations. Mesoplelagic fish were processed on board. All fish were picked from all IKMT nets, most oblique MOCNESS nets, and the left side nets of the depth stratified MOCNESS samples. The Depth stratified nets from the right side of the MOCNESS frame were preserved in 5 % formalin for future quantitative analyses of the nekton. Fish were identified to the lowest possible taxa using Whitehead et al. (1984) and Fahay (2007). Standard length of each fish was measured to the nearest 0.1 mm using a digital caliper. Measured and identified fish were frozen in an -80 °C freezer, and shipped to the University of Hamburg at the end of the cruise. |
| format | Dataset Open Access |
| id | pangaea_https___doi_org_10_1594_PANGAEA_835329 |
| institution | PANGAEA |
| language | en |
| publishDate | 2014 |
| publisher | PANGAEA |
| record_format | pangaea |
| spellingShingle | Mesopelagic fish collected during Maria S. Merian cruise MSM26, spring 2013 Walsh, Harvey Joseph Hare, Jonathan A Basin Scale Analysis, Synthesis and Integration; Date/Time of event; Depth, bottom/max; Depth, top/min; DEPTH, water; D-MOC; Double opening/closing plankton net; EURO-BASIN; Event label; IKMT; Isaacs-Kidd Midwater Trawl; Latitude of event; Length; Longitude of event; Maria S. Merian; Method/Device of event; MSM26; MSM26_126-13; MSM26_126-15; MSM26_126-9; MSM26_127-17; MSM26_127-21; MSM26_127-5; MSM26_131-10; MSM26_131-17; MSM26_131-8; MSM26_133-1; MSM26_133-13; MSM26_133-6; MSM26_134-15; MSM26_134-18; MSM26_134-19; MSM26_135-16; MSM26_135-20; MSM26_135-9; MSM26_136-18; MSM26_136-2; MSM26_136-8; MSM26_137-15; North Atlantic Ocean; Salinity; Sample ID; Taxon/taxa; Temperature, water; Time in minutes; Type; Uniform resource locator/link to reference Mesopelagic fish were collected using a 1 m**2 Double-MOCNESS (Multiple Opening and Closing Net and Environmental Sensing System) and 4.5 m**2 IKMT (Isaacs-Kidd midwater trawl). The main portion of the IKMT was 20 mm knotted nylon, and the tail bag was 3 mm knotless nylon. Oblique IKMT tows were made to a maximum depth of 500 m at a tow speed of 3.5 knots. The original cruise plan intended for nighttime IKMT tows, but tow times varied due to operational constraints. The MOCNESS was equipped with 20 nets of 333 µm mesh size; 10 nets per side. The towing speed was 2 knots. Samples were collected to a maximum depth of 1250 m. The first oblique nets sampled from the surface to the max depth, and the other nets sampled depth stratified bins of the water column. MOCNESS hauls were performed during day and night to investigate diel vertical migrations. Mesoplelagic fish were processed on board. All fish were picked from all IKMT nets, most oblique MOCNESS nets, and the left side nets of the depth stratified MOCNESS samples. The Depth stratified nets from the right side of the MOCNESS frame were preserved in 5 % formalin for future quantitative analyses of the nekton. Fish were identified to the lowest possible taxa using Whitehead et al. (1984) and Fahay (2007). Standard length of each fish was measured to the nearest 0.1 mm using a digital caliper. Measured and identified fish were frozen in an -80 °C freezer, and shipped to the University of Hamburg at the end of the cruise. |
| title | Mesopelagic fish collected during Maria S. Merian cruise MSM26, spring 2013 |
| topic | Basin Scale Analysis, Synthesis and Integration; Date/Time of event; Depth, bottom/max; Depth, top/min; DEPTH, water; D-MOC; Double opening/closing plankton net; EURO-BASIN; Event label; IKMT; Isaacs-Kidd Midwater Trawl; Latitude of event; Length; Longitude of event; Maria S. Merian; Method/Device of event; MSM26; MSM26_126-13; MSM26_126-15; MSM26_126-9; MSM26_127-17; MSM26_127-21; MSM26_127-5; MSM26_131-10; MSM26_131-17; MSM26_131-8; MSM26_133-1; MSM26_133-13; MSM26_133-6; MSM26_134-15; MSM26_134-18; MSM26_134-19; MSM26_135-16; MSM26_135-20; MSM26_135-9; MSM26_136-18; MSM26_136-2; MSM26_136-8; MSM26_137-15; North Atlantic Ocean; Salinity; Sample ID; Taxon/taxa; Temperature, water; Time in minutes; Type; Uniform resource locator/link to reference |
| url | https://doi.org/10.1594/PANGAEA.835329 |