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Mass Abundances of Abnormal Pacific Herring Larvae at a Spawning Ground in British Columbia Public Deposited

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  • Abnormalities including contortion of the body and reduction of the jaws and pectoral fins occurred among 2-25% of the yolk-sac Pacific herring larvae Clupea harengus pallasi collected in 1985 from Kulleet Bay, a spawning area on Vancouver Island, British Columbia. An additional 4-68% of the post-yolk-sac larvae had underdeveloped lower jaws. Abnormal larvae were distinguished from healthy larvae through discriminant analysis of morphomelric characters. The high frequency of larval abnormalities in 1985 may have been related to unseasonably sunny, warm weather during the 14-d incubation of the eggs, which resulted in stress to eggs exposed to sun and warm air during especially low midday tides. Underdeveloped jaws affected feeding by postyolk-sac larvae, as evidenced by lack of food in the guts and by shallow body depths characteristic of starvation.
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  • Purcell, J. E., Grosse, D., & Grover, J. J. (1990, May). Mass abundances of abnormal Pacific herring larvae at a spawning ground in British Columbia. Transactions of the American Fisheries Society, 119(3), 463-469.
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  • This research was supported by Natural Sciences and Engineering Research Council strategic grant G0871 to G. O. Mackie, by Department of Fisheries and Oceans Canada subventions grants in 1984, 1985, and 1986 to Mackie and Purcell, and by a North Atlantic Treaty Organization postdoctoral fellowship and funds from the Oregon State University Sea Grant Program to Purcell.
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  • description.provenance : Submitted by Judy Mullen (judy.mullen@oregonstate.edu) on 2011-09-02T23:25:26Z No. of bitstreams: 1 MassAbunOfAbnormal.pdf: 732398 bytes, checksum: 3a09055708224cb3176e9535234c87d3 (MD5)
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  • description.provenance : Approved for entry into archive by Sue Kunda(sue.kunda@oregonstate.edu) on 2011-09-09T22:56:52Z (GMT) No. of bitstreams: 1 MassAbunOfAbnormal.pdf: 732398 bytes, checksum: 3a09055708224cb3176e9535234c87d3 (MD5)

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