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Record #180880:

Comparison of survey methods for estimating abundance of harbor seals (Phoca vitulina) in glacial fjords / John L. Bengtson, Alana V. Phillips, Elizabeth A. Mathews, Michael A. Simpkins.

Title: Comparison of survey methods for estimating abundance of harbor seals (Phoca vitulina) in glacial fjords / John L. Bengtson, Alana V. Phillips, Elizabeth A. Mathews, Michael A. Simpkins.
Author(s): Bengtson, John L.
Phillips, Alana V.
Mathews, Elizabeth A.
Simpkins, Michael A.
Date: 2007.
In: Fishery Bulletin. (2007.), Vol. 105(3) (2007)
Abstract: Presents comparison of two methods for enumerating harbour seals (Phoca vitulina) in Glacier Bay, Alaska (shore-based counting and large-format aerial photography). Finds both survey methods to incur errors in double-counting and missing seals, especially when ice movement causes seals to drift between survey zones. Considers advantages and disadvantages of each method.
Notes:

Fishery Bulletin. Vol. 105(3) :348-355 (2007).

Keywords: 574.36 -- Biomass and energetics of populations.
59 -- Zoology.
59.087.23 -- Census methods, zoology.
599.745.3 -- Phocidae: Phoca vitulina.
778.35 -- Photography, aerial.
H6 -- Zoology: mammals.
(*3) -- Arctic regions.
(*49) -- Alaska.
(*490) -- Alaska, southeastern.
SPRI record no.: 180880

MARCXML

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245 00 ‡aComparison of survey methods for estimating abundance of harbor seals (Phoca vitulina) in glacial fjords /‡cJohn L. Bengtson, Alana V. Phillips, Elizabeth A. Mathews, Michael A. Simpkins.
260 ## ‡a[S.l.] :‡b[s.n.],‡c2007.
300 ## ‡ap. 348-355 :‡bill., diags., tables, maps.
500 ## ‡aFishery Bulletin. Vol. 105(3) :348-355 (2007).
520 3# ‡aPresents comparison of two methods for enumerating harbour seals (Phoca vitulina) in Glacier Bay, Alaska (shore-based counting and large-format aerial photography). Finds both survey methods to incur errors in double-counting and missing seals, especially when ice movement causes seals to drift between survey zones. Considers advantages and disadvantages of each method.
650 07 ‡a574.36 -- Biomass and energetics of populations.‡2udc
650 07 ‡a59 -- Zoology.‡2udc
650 07 ‡a59.087.23 -- Census methods, zoology.‡2udc
650 07 ‡a599.745.3 -- Phocidae: Phoca vitulina.‡2udc
650 07 ‡a778.35 -- Photography, aerial.‡2udc
650 07 ‡aH6 -- Zoology: mammals.‡2local
651 #7 ‡a(*3) -- Arctic regions.‡2udc
651 #7 ‡a(*49) -- Alaska.‡2udc
651 #7 ‡a(*490) -- Alaska, southeastern.‡2udc
700 1# ‡aBengtson, John L.
700 1# ‡aPhillips, Alana V.
700 1# ‡aMathews, Elizabeth A.
700 1# ‡aSimpkins, Michael A.
773 0# ‡7nnas ‡tFishery Bulletin. ‡gVol. 105(3) (2007) ‡wSPRI-47958
916 ## ‡a2007/11/21 -- JW
917 ## ‡aUnenhanced record from Muscat, imported 2019
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