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Effects of Sodium Chloride and Long‐Term, Low‐Concentration Exposures to Hydrogen Peroxide on New Zealand Mud Snails
Author(s) -
Oplinger Randall W.,
Wagner Eric J.
Publication year - 2015
Publication title -
north american journal of aquaculture
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.432
H-Index - 41
eISSN - 1548-8454
pISSN - 1522-2055
DOI - 10.1080/15222055.2014.951810
Subject(s) - hydrogen peroxide , hatchery , sodium , biology , stocking , substrate (aquarium) , chloride , zoology , snail , toxicology , fishery , fish <actinopterygii> , ecology , chemistry , biochemistry , organic chemistry
New Zealand mud snails Potamopyrgus antipodarum (NZMS) are an invasive species and keeping NZMS out of hatcheries is important because the snail can be spread through the stocking of fish. We conducted a series of experiments to evaluate the effectiveness of using hydrogen peroxide to kill NZMS and sodium chloride to force NZMS to withdraw into their shells. The lowest concentrations of hydrogen peroxide that produced 100% mortality of NZMS were 750 mg/L for a 24‐h exposure and and 75 mg/L for a 96‐h exposure. We found that NZMS treated with sodium chloride withdrew into their shell and released from the substrate. Treatments with sodium chloride (717 mg/L) caused 70% of NZMS to withdraw into their shells and release from the substrate within the first minute of exposure, which could be beneficial in flushing them from a hatchery system provided there is sufficient discharge.