Acute exposure of water soluble fractions of marine diesel on Arctic Calanus glacialis and boreal Calanus finmarchicus: Effects on survival and biomarker response

Acute and long-term biological effects of mechanically and chemically dispersed oil on lumpsucker (Cyclopterus lumpus)

“…Comparing the EC 50 s for lumpsucker to data on WAFs for polar cod (Boregadus saida) (EC 50 s ranging 30e87 mg NAPH/L) displayed as a function of parent naphthalene concentrations suggest that lumpsucker is more sensitive (EC 50 s ranging 19.1e21.5 mg NAPH/L). Higher sensitivity to oil exposure in boreal organisms compared to Arctic species have previously been documented (Hansen et al, , 2013Perkins et al, 2005).…”

Contrasting transcriptome response to thermal stress in two key zooplankton species, Calanus finmarchicus and C. glacialis

“…In addition, as reference genes for Calanus during temperature stress have not been reported, 5 genes were tested as putative reference genes for C. finmarchicus and C. glacialis during STS and LTS. Genes cdc42, eif1ax and trx-2 were selected for their stable transcript counts in all libraries, and efa1α and 16S rRNA were selected from the literature on gene expression in C. finmarchicus (Tarrant et al 2008, Hansen et al 2013. Reciprocal BLAST searches (MegaBLAST in Geneious 7.1.0 [Biomatters], default settings) were performed between the 2 species to identify homologous genes.…”

Toxicity delayed in cold freshwaters?

“…Numerous studies have shown that polar (Arctic and Antarctic) marine invertebrates are generally slower to respond to contaminants including metals, polycyclic aromatic hydrocarbons (PAHs), and other contaminants, than closely related temperate species (King and Riddle, 2001;Jensen et al, 2008;Jensen and Carroll, 2010;Hjorth and Nielsen, 2011;Hansen et al, 2011Hansen et al, , 2013Payne et al, 2014;Zamora et al, 2015). As stated by Payne et al (2014, p883), based on Peck (2002) and other authors, "The delayed response time of cold-adapted species has been linked to slower uptake kinetics, slower growth and development, lower metabolic rates, and higher lipid storage of organisms at low temperatures."…”