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P. E. McAllister

Publications and source records attributed to P. E. McAllister.

At least 37 records · Page 2Linked to original sources
USGS1992

Recovery of infectious pancreatic necrosis virus from the faeces of wild piscivorous birds

Faecal samples were collected from wild birds frequenting salmonid fish hatcheries to determine if birds excrete infectious pancreatic necrosis (IPN) virus in their faeces. Samples were collected from early June through early September. IPN virus was detected in faeces from herons, mallards, and other birds at titres similar to the titres found in the hatchery fish. Bird predation and virus prevalence in bird faeces was much reduced at a hatchery using electric fence barriers to deter birds and at a hatchery where the entire raceway area was enclosed by netting.

Aquaculture↗
USGS1992

Performance of nine external tags on hatchery-reared rainbow trout

We evaluated nine commercially available tags to determine their suitability for marking yearling rainbow trout Oncorhynchus mykiss reared in raceways and circular tanks. The tags tested were Floy vinyl tubing tags FD‐67 anchor, FT‐2 dart, FT‐4 cinch‐up, and FT‐4 lock‐on; modified Carlin; modified Petersen disk; Monel strap 4‐1005; Monel butt end 4‐1242; and Stoffel fish seal. After 9 months, tag losses from raceway fish were lowest (8%) for the FT‐4 lock‐on tag; in tanks, none of the FT‐2 dart, FT‐4 cinch‐up, FT‐4 lock‐on, or the Monel butt end tags were lost. At 90 d after tagging, raceway fish marked with the Monel strap or the modified Carlin tags showed significantly less growth than did fish marked with the FD‐67 anchor tag; the converse was true for fish in tanks. After 9 months, raceway fish marked with the Monel butt end tag and tank fish marked with the FD‐67 anchor tag were least injured. Injury was greater in raceways than in tanks for all tag types. Judged by overall performance, the FD‐67 anchor was the most effective tag for fish maintained in raceways and the FT‐4 cinch‐up was a suitable alternative; the FT‐2 dart, FT‐4 cinch‐up, and Monel butt end tags were equally suitable for fish in tank culture.

Transactions of the American Fisheries Society↗