Population‐level consequences of seismic surveys on fishes: An interdisciplinary challenge
Slabbekoorn, Hans ; Dalen, John ; Haan, Dick de; Winter, Hendrik V. ; Radford, Craig ; Ainslie, Michael A. ; Heaney, Kevin D. ; Kooten, Tobias van; Thomas, Len ; Harwood, John - \ 2019
Fish and Fisheries 20 (2019)4. - ISSN 1467-2960 - p. 653 - 685.
airgun - behavioural response - dynamic energy bidget - fish hearing - `population consequences of acoustic disturbance - stress physiology
Offshore activities elevate ambient sound levels at sea, which may affect marine
fauna. We reviewed the literature about impact of airgun acoustic exposure on fish in terms of damage, disturbance and detection and explored the nature of impact assessment at population level. We provided a conceptual framework for how to address this interdisciplinary challenge, and we listed potential tools for investigation. We focused on limitations in data currently available, and we stressed the potential benefits from cross-species comparisons. Well-replicated and controlled studies do not exist for hearing thresholds and dose–response curves for airgun acoustic exposure. We especially lack insight into behavioural changes for free-ranging fish to actual seismic surveys and on lasting effects of behavioural changes in terms of time and energy budgets, missed feeding or mating opportunities, decreased performance in predator-prey interactions, and chronic stress effects on growth, development and reproduction. We also lack insight into whether any of these effects could have population-level consequences. General “population consequences of acoustic disturbance” (PCAD) models have been developed for marine mammals, but there has been little progress so far in other taxa. The acoustic world of fishes is quite different
from human perception and imagination as fish perceive particle motion and sound pressure. Progress is therefore also required in understanding the nature and extent to which fishes extract acoustic information from their environment. We addressed the challenges and opportunities for upscaling individual impact to the population, community and ecosystem level and provided a guide to critical gaps in our knowledge
Erratum: Assessing the impact of underwater clearance of unexploded ordnance on harbour porpoises (Phocoena phocoena) in the Southern North Sea
Benda-Beckmann, Alexander M. von; Aarts, Geert ; Sertlek, H. ; Lucke, Klaus ; Verboom, Wim C. ; Kastelein, Ronald A. ; Ketten, Darlene R. ; Bemmelen, Rob van; Lam, Frans Peter A. ; Kirkwood, Roger J. ; Ainslie, Michael A. - \ 2018
Aquatic Mammals 44 (2018)3. - ISSN 0167-5427 - p. 340 - 341.
This erratum concerns Figure 9 of the original article in which the line delimiting two effect types ("Permanent hearing loss increasingly likely" and "Permanent hearing loss very likely") was misplaced. This error, which has now been corrected, affects neither the main text nor the conclusion of the study. The authors apologize for the error.
Mapping underwater sound in the dutch part of the North Sea
Özkan Sertlek, H. ; Aarts, Geert ; Brasseur, Sophie ; Slabbekoorn, Hans ; Cate, Carel ten; Benda-Beckmann, Alexander M. von; Ainslie, Michael A. - \ 2016
In: The effects of Noise on Aquatic Life II / Popper, A.N., Hawkins, A., Springer Science + Business Media (Advances in Experimental Medicine and Biology ) - ISBN 9781493929801 - p. 1001 - 1006.
Good environmental status - Shipping noise
The European Union requires member states to achieve or maintain good environmental status for their marine territorial waters and explicitly mentions potentially adverse effects of underwater sound. In this study, we focused on producing maps of underwater sound from various natural and anthropogenic origins in the Dutch North Sea. The source properties and sound propagation are simulated by mathematical methods. These maps could be used to assess and predict largescale effects on behavior and distribution of underwater marine life and therefore become a valuable tool in assessing and managing the impact of underwater sound on marine life.
Development of a model to assess masking potential for marine mammals by the use of air guns in Antarctic waters
Wittekind, Dietrich ; Tougaard, Jakob ; Stilz, Peter ; Dähne, Michael ; Clark, Christopher W. ; Lucke, K. ; Benda-Beckmann, Sander von; Ainslie, Michael A. ; Siebert, Ursula - \ 2016
In: The Effects of Noise on Aquatic Life II Springer New York LLC (Advances in Experimental Medicine and Biology ) - ISBN 9781493929801 - p. 1243 - 1249.
Mysticetes - Pinnipeds - Propagation modeling - Seismic
We estimated the long-range effects of air gun array noise on marine mammal communication ranges in the Southern Ocean. Air gun impulses are subject to significant distortion during propagation, potentially resulting in a quasi- continuous sound. Propagation modeling to estimate the received waveform was conducted. A leaky integrator was used as a hearing model to assess communication masking in three species due to intermittent/continuous air gun sounds. Air gun noise is most probably changing from impulse to continuous noise between 1,000 and 2,000 km from the source, leading to a reduced communication range for, e.g., blue and fin whales up to 2,000 km from the source.
|The cattle connection: reflecting on an action research partnership
Salomon, M. ; Bangamwabo, V. ; Chonco, R. ; Fincham, R. ; Eversom, T. ; Allsop, N. ; Mutanga, O. ; Worth, S. ; McCall, M. ; Zijpp, A.J. van der; Viver, V. van de; Ainslie, A. - \ 2012
In: Abstracts for the Two-Day workshop on South African Netherlands Academic Partnerships. - - p. 8 - 9.