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Report: Trend in Abundance of Arctic Grayling (Thymallus arcticus) in Index Sites of the Parsnip River Watershed, 1995-2018.
FWCP PEA-F19-F-2625
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Two knowledge gaps have been identified by the Peace Region Fish and
Wildlife Compensation Program (FWCP) that limit the programs ability to initiate
conservation and enhancement actions for Arctic Grayling of the Parsnip River
watershed: 1) lack of abundance monitoring indicating population trend and adult population, and 2) lack of monitoring data delineating critical habitats. In this study we address these
gaps using a snorkeling surveys in the Anzac and Table river watersheds.
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Author: Hagen, J., R. Pillipow, N. Gantner
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Old Reference Number: PEA-F19-F-2625
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Old Reference System: FWCP Fish Wildlife Compensation Program - Peace
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Date Published: Mar 2019
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Report ID: 57235
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Audience: Government and Public
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The present Parsnip Arctic Grayling abundance monitoring study had three objectives
for the 2018 field studies:
1. To conduct replicated snorkeling counts of Arctic Grayling within index reaches
using three independent crews, to investigate the repeatability of counts across a
realistic range of crew experience levels.
2. To acquire counts of Arctic Grayling and other species in 6 long-term index sites in
the Anzac River and Table rivers, using a snorkeling survey methodology consistent
with past surveys up to 2007, and to evaluate the trend in abundance over time for
Arctic Grayling in the Parsnip River watershed.
3. To acquire counts of Arctic Grayling and other species along the entire accessible
length of the Anzac River using a single-pass snorkeling survey methodology, in
order to estimate total population size and delineate critical summer rearing
habitats for adult and sub-adult grayling.
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Report Type
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Fish and Aquatic Habitat Information |
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Subject
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Fish Species - Arctic Grayling - Thymallus arcticus |
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Region - Peace |
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Fish and Fish Habitat - Conservation Biology |
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Fish and Fish Habitat - Fish Inventory |
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