Seasonal abundance and development of krill in the Faroe-Shetland Channel ...

• Main Authors: Debes, Høgni H., Gallego, Alejandro, Magen, Cedric
• Format: Article in Journal/Newspaper
• Language: unknown
• Published: ASC 2007 - Theme session F 2024
• Subjects: Ecosystem observation, processes and dynamics; Meganyctiphanes norvegica
• Online Access: https://dx.doi.org/10.17895/ices.pub.25257811.v2; https://ices-library.figshare.com/articles/conference_contribution/Two-year_temporal_variability_of_small_hyperbenthos_collected_4_m_above_the_bottomin_the_deep_2347_m_NW_Mediterranean/25257811/2

No abstracts are to be cited without prior reference to the author.Samples of krill were collected at three stations crossing the Faroe-Shetland Channel during the season from May 2001 until July 2002. Samples were collected down to a maximum depth of 900 m using a MIK-net. Of the ten krill species encountered in the area the large nordic krill Meganyctiphanes norvegica and the somewhat smaller Thysanoessa longicaudata dominated the population throughout the research period. Seasonal variability in temperature, salinity, chlorophyll a, and abundance of krill as well as data on krill egg and larvae is presented, and related to the environmental conditions in the area. In addition the seasonal and diel vertical variation in abundance was studied using moored ADCP’s in the area. Length-frequency histograms of the two dominating species showed the 0-group to appear in the samples in June. Based on larvae and 0-group appearance and the ambient seawater temperature, the main time of spawning is estimated to be in ...