Wild Harbour

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Curé, C. et al. Biological significance of sperm whale responses to sonar: Comparison with anti-predator responses. Endanger. Species Res. 31, 89–102 (2016). Villadsgaard, A., Wahlberg, M. & Tougaard, J. Echolocation signals of wild harbour porpoises, Phocoena phocoena. J. Exp. Biol. 210(1), 56–64 (2007). Neat, F. C. et al. Residency and depth movements of a coastal group of Atlantic cod ( Gadus morhua L.). Mar. Biol. 148(3), 643–654 (2006). Bjørge A, Skern-Mauritzen M, Rossman MC. Estimated bycatch of harbour porpoise ( Phocoena phocoena) in two coastal gillnet fisheries in Norway, 2006–2008. Mitigation and implications for conservation. Biol Conserv. 2013;161: 164–173.

Two deployments included ECG-data that were down-sampled to 250 Hz and filtered (4 pole band pass between 1 and 10 Hz) for automatic detection of R-peaks in the QRS-complex of each heartbeat, which were then visually verified sensu Elmegaard et al. 48. Instantaneous heart rate ( f H) was calculated from the time difference between an R-peak and the previous 39. AHD exposure without taggingBoström MK, Krog C, Kindt-Larsen L, Lunneryd SG, Wahlberg M. Acoustic activity of harbour porpoises ( Phocoena phocoena) around gill nets. Aquat Mamm. 2013;39: 389–396.

At the end of the day, the authors will get nothing or next to nothing - that's always the way - and Scotland/UK will have lost another indie publisher and that isn't good whichever way you look at it." Olesiuk, P. F., Nichol, L. M., Sowden, M. J. & Ford, J. K. B. Effect of the sound generated by an acoustic harassment device on the relative abundance and distribution of harbor porpoises ( Phocoena phocoena) in Retreat Passage, British Columbia. Mar. Mammal Sci. 18, 843–862 (2002).Carlström, J. Diel variation in echolocation behavior of wild harbor porpoises. Mar. Mamm. Sci. 21(1), 1–12 (2005). Connor, R. C. & Krützen, M. Male dolphin alliances in Shark Bay: Changing perspectives in a 30-year study. Anim. Behav. 103, 223–235 (2015).

Evans, D. L. & England, G. R. Bahamas Marine Mammal Stranding Event of 15–16 March 2000 Secretary of the Navy Table of Contents. Joint Interim Report (2001) https://doi.org/10.1111/j.1748-7692.2000.tb00958.x. Calculation of a hazard ratio (HR) [ 47] provides a method for objectively evaluating the relative risk of bycatch. HR is often defined as the ratio of the probability of death to survival. When a bycatch occurs with a constant probability (instantaneous hazard rate, m), the risk of bycatch S( t) at total presence duration t is represented as: S( t) = 1−exp(− mt). This equation means that the longer porpoises are present near a net, the more vulnerable to entanglement they become. Although the duration per presence had not a significant difference, the total duration per hour was obviously different because the number of presences was largely different between BB and NB. However, it is difficult to estimate m due to the small number of present samples, though further research may enable the risk assessment of bycatch. Palka DL, Rossman MC, Vanatten AS, Orphanides CD. Effect of pingers on harbour porpoise ( Phocoena phocoena) bycatch in the US Northeast gillnet fishery. J Cetacean Res Manag. 2008;10:217–226. But at the heart of the business was fair prices for fishermen: Wild Harbour pays its fishermen every week rather than by the month. And, of course, fishermen are a core part of their product. Fahlman, A., Olszowka, A., Bostrom, B. & Jones, D. R. Deep diving mammals: Dive behavior and circulatory adjustments contribute to bends avoidance. Respir. Physiol. Neurobiol. 153, 66–77 (2006).

Introduction

Smolker, R. A., Mann, J. & Smuts, B. B. Use of signature whistles during separations and reunions by wild bottlenose dolphin mothers and infants. Behav Ecol Sociobiol 33, 393–402 (1993).