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040 |aCaOODSP|beng|erda|cCaOODSP
0410 |aeng|beng|bfre
043 |an-cn-bc|apn-----
045 |ax8x8
0861 |aFs97-4/1959E-PDF|zFs97-4/1959E
1001 |aHaegele, C. W., |eauthor.
24510|aHerring stock estimates from diving surveys of spawn on the west coast of Vancouver Island in 1986 / |cby C.W. Haegele and J.F. Schweigert.
264 1|aNanaimo, British Columbia : |bDepartment of Fisheries and Oceans, Fisheries Research Branch, Pacific Biological Station, |cDecember 1987.
264 4|c©1987
300 |a1 online resource (iv, 63 pages) : |billustrations, maps.
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. 1959
500 |aDigitized edition from print [produced by Department of Fisheries and Oceans].
504 |aIncludes bibliographical references (pages 7-8).
5203 |a"Spawn surveys estimated herring stocks on the west coast of Vancouver Island in 1986 at 42,447 tonnes. In Area 23 (Barkley Sound), 26,600 tonnes were estimated to have spawned in a single wave, principally in Loudon Channel. In Area 24, 654 tonnes spawned in Clayoquot Sound and 1761 tonnes spawned in Hesquiat Harbour for an estimated total of 2415 tonnes. There were 8405 tonnes of spawners estimated in Area 25, all of which spawned in Esperanza Inlet and the bulk (93%) spawned in the second of three waves. There was no spawn observed in the Nootka Sound portion of Area 25 and no spawn was recorded in Area 26. In Klaskish Inlet a stock of 815 tonnes was estimated and in Forward Inlet a stock of 4009 tonnes was estimated, for an Area 27 total of 4824 tonnes. Stocks on the west coast of Vancouver Island showed a 50% increase over stocks estimated in a similar survey in 1985. Egg densities were lower in Area 24, at 74,825 eggs per sq. m, than in any of the other areas, where it ranged from 458,464 to 521,761 eggs per sq. m. Spawn was deposited deeper in Barkley Sound, where over 50% of the spawn was deposited lower than 6 m below chart datum, than in the other areas, where no eggs were deposited deeper than 6 m below chart datum. Sea grasses were the most common vegetation utilized for egg deposition in shallow water while filamentous red algae were the most common vegetation in deeper water. Approximately 3% of the eggs were deposited on the giant kelp, Macrocystis sp."--Abstract, page iii.
546 |aIncludes abstracts in English and French.
650 0|aPacific herring|zBritish Columbia|zVancouver Island.
650 0|aPacific herring|xEggs|zBritish Columbia|zVancouver Island.
650 0|aFish populations|xEstimates|zBritish Columbia|zVancouver Island.
650 6|aHareng du Pacifique|zColombie-Britannique|zVancouver, Île de.
650 6|aHareng du Pacifique|xŒufs|zColombie-Britannique|zVancouver, Île de.
650 6|aPoissons|xPopulations|xEstimation|zColombie-Britannique|zVancouver, Île de.
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. 1959.|w(CaOODSP)9.505211
85640|qPDF|s777 KB|uhttps://publications.gc.ca/collections/collection_2025/mpo-dfo/fs97-4/Fs97-4-1959-eng.pdf