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Notice of permit
Regional or Local Number: SECT 08 SCI 007
Notice is hereby given that pursuant to the provisions of section 73 of the Species at Risk Act permit no. SECT 08 SCI 007 is issued.
Scientific research for the conservation of the species
The goal of this study is to determine the sensitivity of fresh water mussel glochidia to salt (NaCl and road salt). Toxicity tests will be conducted under controlled laboratory conditions using a standardized acute toxicity test. The level of chloride (an indicator of salinity) in various mussel habitats will be determined.
Start Date: 2008-04-18 End Date: 2008-12-31
Issuing Authority: Department of Fisheries and Oceans
- Species at Risk Act
Location of Activity (province, territory or ocean):
- Rayed Bean
- Northern Riffleshell
- Wavy-rayed Lampmussel
- Round Pigtoe
- Round Hickorynut
- Eastern Pondmussel
a) The selected collection methods have minimal impact on fish or fish habitat. The intent is to collect 3-5 gravid mussels of each of two endangered species. Mussels will be collected by hand, using a method known as “raccooning”. The substrate is sieved through the fingers and any mussels found are checked for gravidity. At deep sites, or when water levels are high, a “metal D-net” is used to scoop sediment and mussels from the riverbed. b) The effect of research activities on fish and fish habitat is minimized by use of approved research methodologies. Glochidia will be removed from one gill (marsupial) of each female so that the mussel can be returned to its exact site of collection to release the remainder of the glochidia. The majority of the toxicity experiments will be carried out using a common species (Lampsilis siliquoidea) and the endangered glochidia will be tested on a very limited basis. c) The research is not expected to jeopardize the survival or recovery of the species. The study is designed to investigate whether or not road salt poses a serious threat to the survival and recovery of fresh water mussel species.
Department of Fisheries and Oceans
200 Kent St.
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