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0861 |aFs97-4/2037E-PDF|zFs97-4/2037E
1001 |aHaegele, C. W., |eauthor.
24510|aEgg loss from Pacific herring spawns in Barkley Sound in 1988 / |cby C.W. Haegele and J.F. Schweigert.
264 1|aNanaimo, British Columbia : |bDepartment of Fisheries and Oceans, Biological Sciences Branch, Pacific Biological Station, |cAugust 1989.
264 4|c©1989
300 |a1 online resource (iii, 37 pages) : |billustrations, map.
336 |atext|btxt|2rdacontent
337 |acomputer|bc|2rdamedia
338 |aonline resource|bcr|2rdacarrier
4901 |aCanadian manuscript report of fisheries and aquatic sciences, |y0706-6473 ; |vno. 2037
500 |aDigitized edition from print [produced by Department of Fisheries and Oceans].
504 |aIncludes bibliographical references (page 7).
5203 |a"Herring spawn was sampled throughout the incubation period in Barkley Sound, British Columbia, at 38 stations on 8 transects extending from the inshore to the offshore limits of egg deposition. Egg predators were identified and enumerated. About 22,000 birds (chiefly gulls and diving ducks), 26 million invertebrates (starfish and snails), and 8 gray whales consumed the eggs from an estimated 271, 1021, and 235 tonnes of herring, respectively. This predation accounted for about 20% of the eggs deposited in the study area. Spawn measurements (sample weight and eggs on vegetation) and observations (% cover of vegetation, plant height, egg layers on vegetation, and eggs on bottom substrate), varied considerably, making it difficult to determine where and how eggs were lost, or to substantiate the egg loss attributed to predators"--Abstract, page iii.
546 |aIncludes abstracts in English and French.
650 0|aPacific herring|xEggs|zBritish Columbia|zBarkley Sound.
650 0|aPacific herring|xEffect of predation on|zBritish Columbia|zBarkley Sound.
650 6|aHareng du Pacifique|xŒufs|zColombie-Britannique|zBarkley, Baie.
650 6|aHareng du Pacifique |xEffets de la prédation sur|zColombie-Britannique|zBarkley, Baie.
7101 |aCanada. |bDepartment of Fisheries and Oceans, |eissuing body.
7102 |aPacific Biological Station (1972- ), |eissuing body.
830#0|aCanadian manuscript report of fisheries and aquatic sciences ;|vno. 2037.|w(CaOODSP)9.505211
85640|qPDF|s567 KB|uhttps://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-2037-eng.pdf