Contaminants analyzed from multiple species of marine invertebrates and forage fish collected near Arviat, Clyde River and Resolute Bay, Nunavut, from 2012-2015

In conjunction with warming temperatures and sea ice reductions, there has been a shift from arctic to subarctic forage fish over the past two decades within the eastern Canadian Arctic. Subarctic capelin (Mallotus villosus), (Ammodytidae) and/or herring (Clupea harengus) are now common in the low Arctic, and may be replacing arctic cod (Boreogadus saida). This change has, so far, occurred to a lesser extent in the mid-Arctic, and only very recently have Inuit observations of capelin been made in the high Arctic. These small fish are eaten by larger fish, seabirds, seals and whales. This project assesses contaminant levels in these fish and other invertebrate prey that comprise the diet of an important NCP monitoring species, ringed seal. Contaminant levels are compared among prey species and among three NCP "focal" ecosystems exhibiting differential extents of forage fish changes, specifically, Hudson Bay (low Arctic, Arviat), Cumberland Sound/Davis Strait (mid-Arctic, Clyde River) and Barrow Strait/Lancaster Sound (high Arctic, Resolute). Ancillary data including fish length, lipid content, fatty acid signatures, selenium concentrations, and nitrogen and carbon stable isotope ratios are being used to, e.g., interpret interspecific and regional variation in contaminant levels.

Identifier
Source https://www.polardata.ca/pdcsearch/PDCSearchDOI.jsp?doi_id=12162
Metadata Access http://www.polardata.ca/oai/provider?verb=GetRecord&metadataPrefix=fgdc&identifier=12162_fgdc
Provenance
Creator McKinney, Melissa; Fisk, Aaron; Ashevak, Jayko; Ferguson, Steve; Ishalook, Alex; Manik, Philip; Muir, Derek; Pedro, Sara; Tomy, Gregg
Publisher Canadian Cryospheric Information Network
Contributor Polar Data Catalogue
Publication Year 2016
Rights Research programs, CCIN, or ArcticNet take no liability for the use or transmission of this data
OpenAccess true
Contact melissaamckinney(at)gmail.com; pdc(at)uwaterloo.ca
Representation
Language English
Format Computer file
Discipline Environmental Research
Spatial Coverage (-94.000W, 61.000S, -65.000E, 74.000N)
Temporal Coverage Begin 2012-08-01T00:00:00Z
Temporal Coverage End 9999-12-31T00:00:00Z