Skip to main content

ORIGINAL RESEARCH article

Front. Mar. Sci.
Sec. Marine Biology
Volume 11 - 2024 | doi: 10.3389/fmars.2024.1528582
This article is part of the Research Topic Current Research on Fish Otoliths and their Applications View all 8 articles

Otolith Annulus Validation and Population Dynamics of Dark Sleeper Odontobutis potamophila: Insights for Sustainable Fisheries Management

Provisionally accepted
Miao Xiang Miao Xiang 1,2Haoran Liu Haoran Liu 1,3,4Bo Li Bo Li 5*Hongxi Guo Hongxi Guo 5*Chuankun Zhu Chuankun Zhu 6*Man Wang Man Wang 1,3Jie Wang Jie Wang 1,3*Songguang Xie Songguang Xie 1,7Lei Zhang Lei Zhang 1,3*
  • 1 Institute of hydrobiology, Chinese academy of sciences, Wuhan, China
  • 2 Yangtze River Fisheries Research Institute, Chinese Academy of Fishery Sciences, Wuhan, Hebei Province, China
  • 3 Huai’an Research Centre, Centre of Hydrobiology, Huai’an, China
  • 4 Huzhou University, Huzhou, Zhejiang, China
  • 5 Wuhan Academy of Agricultural Sciences, Wuhan, Hubei Province, China
  • 6 Huaiyin Normal University, Huai'an, Jiangsu Province, China
  • 7 Hainan University, Haikou, Hainan Province, China

The final, formatted version of the article will be published soon.

    In this study,we assessed the growth patterns and population characteristics of the Odontobutis potamophila in Nansi Lake to inform evidence-based management recommendations for the sustainable development of fisheries in the region. A collection of O. potamophila was taken from Nansi Lake between August 2017 and July 2018 (except February) to estimate the age structure, growth pattern, and mortality of the population. Edge-type analysis of sagittal otoliths indicated that a single annulus was formed from March to May. The results revealed that the age structure of O. potamophila consisted of four age groups (0-3 ages), with 0-1 year-old fish comprising about 85.11% of the harvest. An isometric growth pattern was observed, with the Logistic growth function providing the best fit for combined sexes. SL t =172.94/ 1+e -0.458 t-0.79 (n=591, R 2 =0.622). Total mortality (Z), natural mortality (M), and fishing mortality (F) were computed as 1.69, 0.53, and 1.16 /year, respectively. Meanwhile, the exploitation rate (E) was 0.69/year, in accordance with the rule of thumb (E＞0.5, the fish stock was undergoing overfishing), which indicated the stock has been overfished slightly. These results showed that brief generation-time, dominance of juvenile fish and relatively high natural mortality of the O. potamophila provide essential information on the native fish species in Nansi Lake, which may be essential for conservation strategies and artificial propagation. At the same time, these results provide critical data for sustainable fisheries management in Nansi Lake and similar ecosystems.

    Keywords: Age validation, Logistic growth function, otolith, Odontobutis potamophila, Overfishing indicators

    Received: 15 Nov 2024; Accepted: 27 Dec 2024.

    Copyright: © 2024 Xiang, Liu, Li, Guo, Zhu, Wang, Wang, Xie and Zhang. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence:
    Bo Li, Wuhan Academy of Agricultural Sciences, Wuhan, Hubei Province, China
    Hongxi Guo, Wuhan Academy of Agricultural Sciences, Wuhan, Hubei Province, China
    Chuankun Zhu, Huaiyin Normal University, Huai'an, 223001, Jiangsu Province, China
    Jie Wang, Institute of hydrobiology, Chinese academy of sciences, Wuhan, China
    Lei Zhang, Institute of hydrobiology, Chinese academy of sciences, Wuhan, China

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.