IDEAS home Printed from https://ideas.repec.org/a/eee/ecomod/v485y2023ics030438002300234x.html
   My bibliography  Save this article

Vorticity preference of the Yangtze finless porpoise (Neophocaena asiaeorientalis) during the dry season at the Wanhe River Estuary confluence

Author

Listed:
  • Ding, Rui
  • Zhang, Xiaoke
  • Chen, Minmin
  • Lian, Yuxi
  • Yu, Daoping

Abstract

The Yangtze finless porpoise (Neophocaena asiaeorientalis) is critically endangered. Finless porpoises rely on small fish as their primary food source. Fish distribution is impacted by topography and vorticity (i.e., water flow patterns), which are markedly more complex in river channel confluences than in other aquatic habitats. Thus, the hydrodynamic conditions imposed by confluences may influence habitat selection by fish and the subsequent behavior and predation strategies of porpoises. However, hydrodynamic effects and driving mechanisms for porpoise occurrence, distribution, and feeding strategies remain unclear. Based on survey data and hydrologic measurements, we created a hydrodynamic model to investigate the driving mechanism of porpoise clustering in a confluence of the Wanhe River Estuary, China. We showed a preference for vorticity in the range 0.001 s−1–0.0015 s−1. Our multivariate logarithmic linear model revealed a fit of R2 = 0.792, indicating consistency between theoretical and actual occurrence values. Certain patch parameter effects suggest that vorticity fragmentation affects porpoise habitat selection and utilization. Our study provides a new perspective on the ecological impact of the Yangtze River wading project and the habitat protection of aquatic animals in rivers and aids future research examining hydrodynamic effects on the feeding behavior of freshwater cetaceans.

Suggested Citation

  • Ding, Rui & Zhang, Xiaoke & Chen, Minmin & Lian, Yuxi & Yu, Daoping, 2023. "Vorticity preference of the Yangtze finless porpoise (Neophocaena asiaeorientalis) during the dry season at the Wanhe River Estuary confluence," Ecological Modelling, Elsevier, vol. 485(C).
    • Handle: RePEc:eee:ecomod:v:485:y:2023:i:c:s030438002300234x
    DOI: 10.1016/j.ecolmodel.2023.110504
    as

    Download full text from publisher

    File URL: http://www.sciencedirect.com/science/article/pii/S030438002300234X
    Download Restriction: Full text for ScienceDirect subscribers only
    File URL: https://libkey.io/10.1016/j.ecolmodel.2023.110504?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    As the access to this document is restricted, you may want to search for a different version of it.

    References listed on IDEAS

    as
    1. Xuming Zhou & Xuanmin Guang & Di Sun & Shixia Xu & Mingzhou Li & Inge Seim & Wencai Jie & Linfeng Yang & Qianhua Zhu & Jiabao Xu & Qiang Gao & Alaattin Kaya & Qianhui Dou & Bingyao Chen & Wenhua Ren &, 2018. "Population genomics of finless porpoises reveal an incipient cetacean species adapted to freshwater," Nature Communications, Nature, vol. 9(1), pages 1-8, December.
    2. Graham K. Taylor & Robert L. Nudds & Adrian L. R. Thomas, 2003. "Flying and swimming animals cruise at a Strouhal number tuned for high power efficiency," Nature, Nature, vol. 425(6959), pages 707-711, October.
    Full references (including those not matched with items on IDEAS)

    Most related items

    These are the items that most often cite the same works as this one and are cited by the same works as this one.
    1. Li, Weizhong & Wang, Wen-Quan & Yan, Yan, 2020. "The effects of outline of the symmetrical flapping hydrofoil on energy harvesting performance," Renewable Energy, Elsevier, vol. 162(C), pages 624-638.
    2. Cristiano Maria Verrelli & Cristian Romagnoli & Roxanne Jackson & Ivo Ferretti & Giuseppe Annino & Vincenzo Bonaiuto, 2021. "Phi -Bonacci Butterfly Stroke Numbers to Assess Self-Similarity in Elite Swimmers," Mathematics, MDPI, vol. 9(13), pages 1-12, July.
    3. Brendan Hoover & Richard S. Middleton & Sean Yaw, 2019. "CostMAP: An open-source software package for developing cost surfaces," Papers 1906.08872, arXiv.org.
    4. Emanuel Camacho & Fernando Neves & André Silva & Jorge Barata, 2020. "Numerical Investigation of Frequency and Amplitude Influence on a Plunging NACA0012," Energies, MDPI, vol. 13(8), pages 1-13, April.
    5. Paweł Piskur & Piotr Szymak & Michał Przybylski & Krzysztof Naus & Krzysztof Jaskólski & Mariusz Żokowski, 2021. "Innovative Energy-Saving Propulsion System for Low-Speed Biomimetic Underwater Vehicles," Energies, MDPI, vol. 14(24), pages 1-15, December.
    6. Trivellato, F. & Raciti Castelli, M., 2015. "Appraisal of Strouhal number in wind turbine engineering," Renewable and Sustainable Energy Reviews, Elsevier, vol. 49(C), pages 795-804.
    7. Xiaotian Zhang & Noel Naughton & Tejaswin Parthasarathy & Mattia Gazzola, 2021. "Friction modulation in limbless, three-dimensional gaits and heterogeneous terrains," Nature Communications, Nature, vol. 12(1), pages 1-8, December.

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:eee:ecomod:v:485:y:2023:i:c:s030438002300234x. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    If CitEc recognized a bibliographic reference but did not link an item in RePEc to it, you can help with this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Catherine Liu (email available below). General contact details of provider: http://www.journals.elsevier.com/ecological-modelling .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.