However, the genetic resources available for the species are relatively modest. The genetics of Antarctic krill has long been of scientific interest for both for the analysis of population structure and analysis of functional genetics. One looming threat due to elevated levels of anthropogenic atmospheric carbon dioxide (CO2 is ocean acidification (lowering of sea water pH by CO2 dissolving into the oceans. Changes in krill population viability would have catastrophic effect on the Antarctic ecosystem. KrillDB: A de novo transcriptome database for the Antarctic krill ( Euphausia superba.ĭirectory of Open Access Journals (Sweden)įull Text Available Antarctic krill ( Euphausia superba is a key species in the Southern Ocean with an estimated biomass between 100 and 500 million tonnes. Here, we apply a simplified model derived from this theory (DEBkiss) to Antarctic krill Euphausia superba. Parameterising a generic model for the dynamic energy budget of Antarctic krill, Euphausia superba.ĭynamic Energy Budget (DEB) theory is a generic and comprehensive framework for understanding bioenergetics over the entire life cycle of an organism. A v erage catch, for krill worked out to be 354. Krill constituted 46% of the total catch while salps constituted 54%. Krill ( Euphausia superba ) 5637, krill juveniles 12, salps 6738, jellyfish 35, lanter n fish 2.2, squid 5. Behaviour in eukaryotic organisms is profoundly influenced.ĭistribution, abundance and vertical migration pattern of krill - Euphausia superba Dana at fishing area 58 of the Indian Ocean sector of Southern Oceanĭigital Repository Service at National Institute of Oceanography (India) We have analysed the circadian behaviour of Euphausia superba in a. the involvement of an endogenous circadian clock in this behaviour is as yet not fully resolved. in the southern ocean ecosystem where it is the main consumer of. Is vertical migration in Antarctic krill ( Euphausia superba) influenced. Exploratory analyses indicate an overall reduction in protein synthesis under food shortage while UV stress resulted in the activation of photo-protective mechanisms. The final assembly resulted in a total of 26,415 contigs, 39.8% of which were putatively annotated. We undertook a transcriptome-scale approach (454 pyrosequencing) as a baseline for future studies addressing the physiological response of krill to short-term food shortage and natural UV-B stress. However, the continued decrease in stock density raises concerns over the resilience and adaptive potential of krill to withstand the current rate of environmental change. Pearson, Gareth A.Įuphausia superba is a keystone species in Antarctic food webs. Martins, Maria Joã o F Lago-Leston, Asuncion Anjos, Antonio Duarte, Carlos M. A transcriptome resource for Antarctic krill ( Euphausia superba Dana) exposed to short-term stress
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |