Academic Journal
Reproductive pattern and population dynamics of commercial red swamp crayfish (Procambarus clarkii ) from China: implications for sustainable aquaculture management
| العنوان: | Reproductive pattern and population dynamics of commercial red swamp crayfish (Procambarus clarkii ) from China: implications for sustainable aquaculture management |
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| المؤلفون: | Jin, Shiyu, Jacquin, Lisa, Xiong, Mantang, Li, Ruojing, Lek, Sovan, Li, Wei, Zhang, Tanglin |
| المساهمون: | Evolution et Diversité Biologique (EDB), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS) |
| المصدر: | ISSN: 2167-8359 ; PeerJ ; https://cnrs.hal.science/hal-04716918 ; PeerJ, 2019, 7, pp.e6214. ⟨10.7717/peerj.6214⟩. |
| بيانات النشر: | HAL CCSD PeerJ |
| سنة النشر: | 2019 |
| المجموعة: | Université Toulouse III - Paul Sabatier: HAL-UPS |
| مصطلحات موضوعية: | [SDE]Environmental Sciences |
| الوصف: | International audience ; Background The red swamp crayfish, Procambarus clarkii (Girard, 1852), is one of the most promising freshwater species for aquaculture in China. Understanding its reproductive pattern and population dynamics is crucial for sustainable management, but there is currently a lack of fundamental knowledge of commercial P. clarkii populations. Therefore, the purpose of this study was to investigate the reproductive pattern and population dynamics of commercial P. clarkii throughout the yearly cycle. Methods A total of 2,051 crayfish (1,012 females and 1,039 males) were collected from March 2016 to February 2017 in the area of Selection and Reproduction Center of Crayfish. The reproductive pattern was evaluated by the gonadosomatic index (GSI), hepatosomatic index (HSI), ovarian development and fecundity. Growth, mortality rates and exploitation rate were estimated by electronic length frequency analysis by R package “TropFishR” based on data of cephalothorax length (CTL). Results Our results demonstrated that spawning activities of P. clarkii took place from September to November, with a mean fecundity of 429 ± 9 eggs per female. There were two recruitments yearly, a major one from October to November and a minor one from March to May. With respect to population growth, five growth cohorts were identified for both females and males. Crayfish grew faster but attained smaller asymptotic maximum CTL as indicated by higher growth coefficient ( K ), growth parameter index ( Ø ′) and lower asymptotic CTL ( L inf ). The estimates of total mortality rate ( Z ), natural mortality rate ( M ) and fishing mortality rate ( F ) were 1.93, 1.02, 0.91 year −1 for females and 2.32, 0.93, 1.39 year −1 for males, which showed that the mortality of male crayfish was mainly caused by fishing. The estimates of exploitation rate ( E ) indicated that male crayfish were overexploited, with the values of 0.47 and 0.60 year −1 for females and males, respectively. Discussion P. clarkii spawned from September to November ... |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| DOI: | 10.7717/peerj.6214 |
| الاتاحة: | https://cnrs.hal.science/hal-04716918 https://cnrs.hal.science/hal-04716918v1/document https://cnrs.hal.science/hal-04716918v1/file/b9bf23e1cce1da5a316885a52c955773dbe7.pdf https://doi.org/10.7717/peerj.6214 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.6EB9AE05 |
| قاعدة البيانات: | BASE |
| DOI: | 10.7717/peerj.6214 |
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