Lean Helder-Hoek

504 total citations
43 papers, 316 citations indexed

About

Lean Helder-Hoek is a scholar working on Ecology, Oceanography and Atmospheric Science. According to data from OpenAlex, Lean Helder-Hoek has authored 43 papers receiving a total of 316 indexed citations (citations by other indexed papers that have themselves been cited), including 42 papers in Ecology, 37 papers in Oceanography and 16 papers in Atmospheric Science. Recurrent topics in Lean Helder-Hoek's work include Marine animal studies overview (42 papers), Underwater Acoustics Research (36 papers) and Arctic and Antarctic ice dynamics (15 papers). Lean Helder-Hoek is often cited by papers focused on Marine animal studies overview (42 papers), Underwater Acoustics Research (36 papers) and Arctic and Antarctic ice dynamics (15 papers). Lean Helder-Hoek collaborates with scholars based in Canada, Netherlands and Australia. Lean Helder-Hoek's co-authors include Ronald A. Kastelein, Robin Gransier, Nancy Jennings, John M. Terhune, Christ A. F. de Jong, Frans‐Peter A. Lam, Alexander M. von Benda‐Beckmann, Michael A. Ainslie, M.F. Leopold and J Pamela Engelberts and has published in prestigious journals such as Environmental Pollution, The Journal of the Acoustical Society of America and Hydrobiologia.

In The Last Decade

Lean Helder-Hoek

38 papers receiving 305 citations

Peers

Lean Helder-Hoek

ECOLO

OCEAN

Randall L. Dear United States

Vladimir O. Klishin Russia

Jennifer S. Trickey United States

Kane A. Cunningham United States

Marlee Breese United States

Willem C. Verboom Netherlands

Ansgar Diederichs Germany

Miles J. G. Parsons Australia

Nick Tregenza United Kingdom

N.M. Schooneman United Kingdom

Randall L. Dear United States

Lean Helder-Hoek

362 ×1.2

ECOLO

284 ×1.3

OCEAN

160 ×1.4

45 ×0.7

72 ×1.2

Citations per year, relative to Lean Helder-Hoek Lean Helder-Hoek (= 1×) peers Randall L. Dear

Countries citing papers authored by Lean Helder-Hoek

Since Specialization

Citations

This map shows the geographic impact of Lean Helder-Hoek's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by Lean Helder-Hoek with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Lean Helder-Hoek more than expected).

Fields of papers citing papers by Lean Helder-Hoek

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Lean Helder-Hoek. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by Lean Helder-Hoek. The network helps show where Lean Helder-Hoek may publish in the future.

Co-authorship network of co-authors of Lean Helder-Hoek

This figure shows the co-authorship network connecting the top 25 collaborators of Lean Helder-Hoek. A scholar is included among the top collaborators of Lean Helder-Hoek based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Lean Helder-Hoek. Lean Helder-Hoek is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Kastelein, Ronald A., et al.. (2025). Temporary Hearing Threshold Shift and Testing the Equal-Energy Hypothesis in Harbor Seals (Phoca vitulina) After Exposure to a One-Sixth-Octave Noise Band Centered at 8 kHz. Aquatic Mammals. 51(1). 79–95.

Kastelein, Ronald A., et al.. (2024). Temporary Hearing Threshold Shift and Testing the Equal-Energy Hypothesis in a Harbor Porpoise (Phocoena phocoena) After Exposure to a Continuous Noise Band at 8 kHz, and a Revised TTS-Onset Function. Aquatic Mammals. 50(5). 445–459. 1 indexed citations

Kastelein, Ronald A., et al.. (2023). Underwater Sound Detection Thresholds (0.031-80 kHz) of Two California Sea Lions (Zalophus californianus) and a Revised Generic Audiogram for the Species. Aquatic Mammals. 49(5). 422–435. 3 indexed citations

Kastelein, Ronald A., et al.. (2022). Temporary Hearing Threshold Shift in California Sea Lions (Zalophus californianus) Due to One-Sixth-Octave Noise Bands Centered at 0.6 and 1 kHz. Aquatic Mammals. 48(3). 248–265. 2 indexed citations

Kastelein, Ronald A., et al.. (2022). Temporary Hearing Threshold Shift in California Sea Lions (Zalophus californianus) Due to One-Sixth-Octave Noise Bands Centered at 8 and 16 kHz: Effect of Duty Cycle and Testing the Equal-Energy Hypothesis. Aquatic Mammals. 48(1). 36–58. 1 indexed citations

Kastelein, Ronald A., et al.. (2020). Temporary Hearing Threshold Shift at Ecologically Relevant Frequencies in a Harbor Porpoise (Phocoena phocoena) Due to Exposure to a Noise Band Centered at 88.4 kHz. Aquatic Mammals. 46(5). 444–453. 6 indexed citations

Kastelein, Ronald A., et al.. (2020). Temporary Threshold Shift in a Second Harbor Porpoise (Phocoena phocoena) After Exposure to a One-Sixth-Octave Noise Band at 1.5 kHz and a 6.5 kHz Continuous Wave. Aquatic Mammals. 46(5). 431–443. 4 indexed citations

Kastelein, Ronald A., Lean Helder-Hoek, Cormac Booth, Nancy Jennings, & M.F. Leopold. (2019). High Levels of Food Intake in Harbor Porpoises (Phocoena phocoena): Insight into Recovery from Disturbance. Aquatic Mammals. 45(4). 380–388. 6 indexed citations

Kastelein, Ronald A., et al.. (2019). Reduction in Body Mass and Blubber Thickness of Harbor Porpoises (Phocoena phocoena) Due to Near-Fasting for 24 Hours in Four Seasons. Aquatic Mammals. 45(1). 37–47. 19 indexed citations

10.

Au, Whitlow W. L., Ronald A. Kastelein, & Lean Helder-Hoek. (2019). Acoustic reflectivity of a harbor porpoise (Phocoena phocoena). The Journal of the Acoustical Society of America. 146(4). 2475–2481. 1 indexed citations

11.

Kastelein, Ronald A., Lean Helder-Hoek, & Robin Gransier. (2019). Frequency of greatest temporary hearing threshold shift in harbor seals (Phoca vitulina) depends on fatiguing sound level. The Journal of the Acoustical Society of America. 145(3). 1353–1362. 16 indexed citations

12.

Kastelein, Ronald A., Amy Verhoeven, & Lean Helder-Hoek. (2019). Behavioral Responses of a Harbor Porpoise (Phocoena phocoena) to a Series of Four Different Simulated Low-Frequency Sonar Sounds (1.33-1.43 kHz). Aquatic Mammals. 45(6). 632–645. 1 indexed citations

13.

Kastelein, Ronald A., Lean Helder-Hoek, & John M. Terhune. (2018). Hearing thresholds, for underwater sounds, of harbor seals (Phoca vitulina) at the water surface. The Journal of the Acoustical Society of America. 143(4). 2554–2563. 15 indexed citations

14.

Kastelein, Ronald A., et al.. (2018). Behavioral Responses of Harbor Porpoises (Phocoena phocoena) to Sonar Playback Sequences of Sweeps and Tones (3.5-4.1 kHz). Aquatic Mammals. 44(4). 389–404.

15.

Kastelein, Ronald A., et al.. (2018). Effect of pile-driving sounds on harbor seal (Phoca vitulina) hearing. The Journal of the Acoustical Society of America. 143(6). 3583–3594. 19 indexed citations

16.

Kastelein, Ronald A., Lean Helder-Hoek, & Nancy Jennings. (2018). Seasonal Changes in Food Consumption, Respiration Rate, and Body Condition of a Male Harbor Porpoise (Phocoena phocoena). Aquatic Mammals. 44(1). 76–91. 18 indexed citations

17.

Engelberts, J Pamela, et al.. (2017). Spatial avoidance to experimental increase of intermittent and continuous sound in two captive harbour porpoises. Environmental Pollution. 233. 1024–1036. 6 indexed citations

18.

Kastelein, Ronald A., et al.. (2017). Acoustic dose-behavioral response relationship in sea bass (Dicentrarchus labrax) exposed to playbacks of pile driving sounds. Marine Environmental Research. 130. 315–324. 13 indexed citations

19.

Kastelein, Ronald A., Lean Helder-Hoek, Alexander M. von Benda‐Beckmann, et al.. (2017). Temporary hearing threshold shift in a harbor porpoise (Phocoena phocoena) after exposure to multiple airgun sounds. The Journal of the Acoustical Society of America. 142(4). 2430–2442. 23 indexed citations

20.

Kastelein, Ronald A., et al.. (2017). Hearing thresholds of a male and a female harbor porpoise (Phocoena phocoena). The Journal of the Acoustical Society of America. 142(2). 1006–1010. 29 indexed citations

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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