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River network structure shapes interannual feedbacks between adult sea lamprey migration and larval habitation

Author

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  • Neeson, Thomas M.
  • Wiley, Michael J.
  • Adlerstein, Sara A.
  • Riolo, Rick L.

Abstract

Adult sea lampreys (Petromyzon marinus) migrating upstream to spawn follow a pheromone released by instream larvae. The size (i.e. flow) of a tributary dilutes the concentration of this pheromone, such that the downstream propagation pattern of larval pheromone must be influenced by patterns in the relative sizes and numbers of confluent tributaries. We developed an individual-based model to explicitly test the resulting hypothesis that river network structure influences the migration decisions of adult lampreys following the larval pheromone, and in turn the distribution of larvae. First, we initialized the model using randomly generated river networks, and found a strong positive relationship between network diameter and larval aggregation. Larvae aggregated over time, and the degree and rate of this aggregation depended on network diameter. Second, we initialized the model using a river network based on the Muskegon River, Michigan, and compared model-generated larval distribution to available field survey data. We found a significant correlation between model-generated larval abundance and field-measured larval densities (r2=0.54; p<0.0001). We also found an inverse relationship between subwatershed area and the degree to which path-dependent effects influenced larval abundance in that subwatershed. Our results overall suggest that larval distribution across a watershed results from a system of context-dependent interannual feedbacks shaped by network structure and the past migratory and spawning behavior of adults.

Suggested Citation

  • Neeson, Thomas M. & Wiley, Michael J. & Adlerstein, Sara A. & Riolo, Rick L., 2011. "River network structure shapes interannual feedbacks between adult sea lamprey migration and larval habitation," Ecological Modelling, Elsevier, vol. 222(17), pages 3181-3192.
    • Handle: RePEc:eee:ecomod:v:222:y:2011:i:17:p:3181-3192
    DOI: 10.1016/j.ecolmodel.2011.06.014
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    Cited by:

    1. Fitzpatrick, Kimberly B. & Neeson, Thomas M., 2018. "Aligning dam removals and road culvert upgrades boosts conservation return-on-investment," Ecological Modelling, Elsevier, vol. 368(C), pages 198-204.
    2. Perkin, Joshuah S. & Gido, Keith B. & Al-Ta’ani, Ola & Scoglio, Caterina, 2013. "Simulating fish dispersal in stream networks fragmented by multiple road crossings," Ecological Modelling, Elsevier, vol. 257(C), pages 44-56.
    3. Neeson, Thomas M. & Wiley, Michael J. & Adlerstein, Sara A. & Riolo, Rick L., 2012. "How river network structure and habitat availability shape the spatial dynamics of larval sea lampreys," Ecological Modelling, Elsevier, vol. 226(C), pages 62-70.
    4. Hongxiang Wang & Lintong Huang & Jianwen Hu & Huan Yang & Wenxian Guo, 2022. "Effect of Urbanization on the River Network Structure in Zhengzhou City, China," IJERPH, MDPI, vol. 19(4), pages 1-15, February.
    5. Zhaoyi Shang & Yue Che & Kai Yang & Yu Jiang, 2012. "Assessing Local Communities’ Willingness to Pay for River Network Protection: A Contingent Valuation Study of Shanghai, China," IJERPH, MDPI, vol. 9(11), pages 1-17, October.

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