Fin whale detection history.

• Main Authors: Eric M. Keen (8057210), James Pilkington (11383961), Éadin O’Mahony (11383964), Kim-Ly Thompson (11383967), Benjamin Hendricks (11383970), Nicole Robinson (352516), Archie Dundas (11383973), Linda Nichol (5346965), Hussein M. Alidina (11383976), Hermann Meuter (11383979), Chris R. Picard (11383982), Janie Wray (457395)
• Format: Still Image
• Language: unknown
• Published: 2021
• Subjects: Ecology; Marine Biology; Inorganic Chemistry; Environmental Sciences not elsewhere classified; Biological Sciences not elsewhere classified; strong site fidelity; recapture analysis documented; greatest densities occurring; great bear rainforest; findings offer insights; 2005 – 2006; div >< p; seasonally resident population; kitimat fjord system; fjord system along; fin whales arrived; fin whales (<; balaenoptera physalus </; kfs repeatedly throughout; fjord system; fin whales; p </; population ’; population recovery; velifera </; b </; widely considered; whaling records; visual surveys; traditional knowledge; squally channel; social network; several lines; seasonal patterns; recent years; rare exception; peak abundance; outer channels; oceanic species; occur regularly; intracoastal waters; general patterns; evidence indicated; enclosed seas; commonly found; commercial whaling; calf pairs; caamaño sound; based surveys; 70 %; 572 hours; 311 km; Kitimat; Caamaño Sound; Squally Channel; Balaenoptera physalus; Fin whale
• Online Access: https://doi.org/10.1371/journal.pone.0256815.g002

History of documentation of fin whales in the Kitimat Fjord System. (A) Reported kills from the whaling records, not corrected for effort; (B) sightings reported to the BC Cetacean Sightings Network, not corrected for effort; (C) effort-corrected encounter rates (fin whales detected per kilometer of track line surveyed) for three boat-based research platforms, 2004–2015 (note different y-axis scales); (D) effort-corrected detection rates (fin whales detected per hour of scan effort) of fin whales from three shore-based research stations, 2010–2019. Note that shore-based detection rates are for demonstration purposes only; they were not used to assess annual trends in relative abundance.