Characteristics of Centrolophus niger collected south of Iceland in July 2017 and July 2021 ...

• Main Authors: Kennedy, James, Ólafsdóttir, Anna H, Aradóttir, Svandís Eva, Egilsdóttir, Svanhildur, Pampoulie, Christophe
• Format: Dataset
• Language: unknown
• Published: PANGAEA 2023
• Subjects: Centrolophus niger; mesopelagic; prey; rare; Stomach contents; Event label; Year of observation; Cruise/expedition; Station label; Comment; Depth, bathymetric; Towing speed; Trawling distance; Trawling time; Trawl vertical opening; Trawl door horizontal opening; Trawl headline depth; Depth, water, top/minimum; Depth, water, bottom/maximum; DEPTH, water; Mesh size; Wire length; Sweeps length; Temperature, water; Temperature, air; Species, unique identification; Species, unique identification URI; Species, unique identification Semantic URI; Specimen identification; Centrolophus niger, total length; Centrolophus niger, fork length; Length, standard; Wet mass; Fish, gutted, mass; Liver, mass; Sex; Maturation stage; Otolith; Stomach, wet mass; Multipurpose pelagic trawl - 832; Calculated average/mean values; Visual identification; Fish measuring board; Fish, wet weighted; Counted; IESSNS_2017; IESSNS_2021; Arni Fridriksson; Sustainable Management of Mesopelagic Resources SUMMER; Iceland; Nordic Seas
• Online Access: https://dx.doi.org/10.1594/pangaea.955695; https://doi.pangaea.de/10.1594/PANGAEA.955695

This data set has biological measurements and stomach content analysis for fourteen specimens of Centrolophus niger which were frozen whole at sea during the Icelandic part of the International Ecosystem Summer Survey in Nordic Seas (IESSNS) in July 2017 and July 2021. In 2017, three specimens were collected to confirm species identification by a specialist at home institute. In 2021, all caught specimens were collected for detailed biological study. The C. niger were by-catch in a scientific pelagic ecosystem survey which includes trawling, cod-end mesh size 50 mm, in the surface layer, trawl headline visible in surface and foot rope at approximately 35 m depth. On December 1st, 2021, total weight of specimens was measured frozen and again thawed, thawed 16 hours at 0 °C. Length was measured to the nearest mm, weight to nearest 0.01 g, sex labelled as unidentified when macroscopic examination of gonads was inconclusive, maturity scale was mature, immature, or unidentified when macroscopic examination was ...