000	03336cam  2200385za 4500
001	9.826876
003	CaOODSP
005	20221107144702
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008	161103s2016    oncbd   ob   f000 0 eng d
040	|aCaOODSP|beng
041	|aeng|bfre
043	|an-cn---
086	1 |aFs70-5/2016-091E-PDF
245	00|aBlue whale continuous frequentations of St. Lawrence habitats from multi-year PAM series |h[electronic resource] / |cYvan Simard ... [et al.].
246	1 |iTitle at head of French abstract: |aFréquentation continue de la baleine bleue des habitats du Saint-Laurent à partir de la série pluriannuelle de monitorage par acoustique passive
260	|aOttawa : |bFisheries and Oceans Canada, |cc2016.
300	|av, 14 p. : |bcol. maps
490	1 |aCanadian Science Advisory Secretariat research document, |x1919-5044 ; |v2016/091, Quebec Region
500	|aCover title.
500	|a“Maurice Lamontagne Institute; Marine Science Institute, University of Québec at Rimouski.”
500	|a“October 2016.”
504	|aIncludes bibliographical references (p. 5-7).
520	|a"The endangered northwest Atlantic blue whale is a regular visitor of the Gulf of St. Lawrence where they feed upon aggregated krill. As part of the population recovery plan, a passive acoustic monitoring (PAM) observatory was set up to track the space-time patterns of blue whale use of this northwest Atlantic marginal sea from their species-specific calls from 2010 to 2015. The PAM network included 4 regular multi-year stations and 2 1-year stations covering the two Gulf entrances and the expected excursion routes. The most frequent “A-type” infrasonic call was tracked with a dedicated algorithm while the rarer and less energetic low frequency D-call was manually detected from the spectrograms, aided by an energy detector. During the monitoring period, the blue whale was present year-round in the southern Gulf of St. Lawrence, and almost year-round in the Lower Estuary. They were not detected at the northeastern station near Belle Isle Strait. No clear lag between the appearance and disappearance at the stations along the inland route from the Atlantic was observed, which does not plea in favour of a seasonal synchronous migration. The co-occurrence of detections at all sites during a large part of the annual cycle indicate a dispersed population over numerous sites of interest in the studied area, which includes periods of arrival and departures as indicated by fluctuations in call occurrence. Results clearly show that blue whales occupy the whole region, not only during summer and fall, but year-round“--Abstract, p. iv.
546	|aIncludes abstract in French.
692	07|2gccst|aEndangered species
692	07|2gccst|aWhales
692	07|2gccst|aWildlife management
700	1 |aSimard, Yvan.
710	1 |aCanada. |bDepartment of Fisheries and Oceans.
710	1 |aCanada. |bEcosystems and Oceans Science.
710	2 |aCanadian Science Advisory Secretariat.
710	2 |aMaurice Lamontagne Institute.
830	#0|aResearch document (Canadian Science Advisory Secretariat)|x1919-5044 ; |v2016/091, Quebec Region|w(CaOODSP)9.507396
856	40|qPDF|s1,002 KB|uhttps://publications.gc.ca/collections/collection_2016/mpo-dfo/Fs70-5-2016-091-eng.pdf