Growth and competitions of the Australian red-claw crayfish, Cherax quadricarinatus (von Martens, 1868) in Thailand: the experimental approaches
The Australian red-claw crayfish (RCC) Cherax quadricarinatus (von Martens 1868) (Crustacea: Decapoda: Parastacidae) has been introduced and promoted for freshwater aquaculture in many countries including Thailand. This study i) evaluates the growth performance of RCC in near-natural conditions rela...
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| Format: | Article |
| Language: | English |
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Regional Euro-Asian Biological Invasions Centre (REABIC)
2023-04-01
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| Series: | Aquatic Invasions |
| Online Access: | https://aquaticinvasions.arphahub.com/article/103301/download/pdf/ |
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| author | Tuantong Jutagate Wachira Kwangkhwang Samnao Saowakoon |
| author_facet | Tuantong Jutagate Wachira Kwangkhwang Samnao Saowakoon |
| author_sort | Tuantong Jutagate |
| collection | DOAJ |
| description | The Australian red-claw crayfish (RCC) Cherax quadricarinatus (von Martens 1868) (Crustacea: Decapoda: Parastacidae) has been introduced and promoted for freshwater aquaculture in many countries including Thailand. This study i) evaluates the growth performance of RCC in near-natural conditions relative to captive conditions and ii) investigates how successfully RCC can compete with a trophically and functionally analogous native species. Growth of RCC was compared among two aquaculture systems (concrete tank and earthen pond) and a treatment with simulated natural conditions. After 12 months of rearing, total length and weight were greatest in the earthen pond and poorest in the near-natural treatment, with significant differences in total length between the near-natural treatment and the two culture systems. Length-weight relationships showed that the RCC had positive allometry in the culture systems but negative allometry in the near-natural treatment. Competition was evaluated by means of a biotic resistance test and an additive–substitutive experiment between RCC and the native freshwater crab Esanthelphusa dugasti (Rathbun, 1902) (Crustacea: Decapoda: Gecarcinucidae). Specific growth rates after 90 days of the experiments suggest that the crab inhibited growth of RCC. This implies that the invasion of RCC in Thai waters could be limited by competition from resident freshwater crabs. |
| format | Article |
| id | doaj-art-8dd90c50d86f40e2bf564f3f46968966 |
| institution | Kabale University |
| issn | 1818-5487 |
| language | English |
| publishDate | 2023-04-01 |
| publisher | Regional Euro-Asian Biological Invasions Centre (REABIC) |
| record_format | Article |
| series | Aquatic Invasions |
| spelling | doaj-art-8dd90c50d86f40e2bf564f3f469689662025-08-20T03:51:09ZengRegional Euro-Asian Biological Invasions Centre (REABIC)Aquatic Invasions1818-54872023-04-0118110311710.3391/ai.2023.18.1.103301103301Growth and competitions of the Australian red-claw crayfish, Cherax quadricarinatus (von Martens, 1868) in Thailand: the experimental approachesTuantong Jutagate0Wachira Kwangkhwang1Samnao Saowakoon2Ubon Ratchathani UniversityDepartment of Fisheries, ChatuchakRajamangala University of Technology IsanThe Australian red-claw crayfish (RCC) Cherax quadricarinatus (von Martens 1868) (Crustacea: Decapoda: Parastacidae) has been introduced and promoted for freshwater aquaculture in many countries including Thailand. This study i) evaluates the growth performance of RCC in near-natural conditions relative to captive conditions and ii) investigates how successfully RCC can compete with a trophically and functionally analogous native species. Growth of RCC was compared among two aquaculture systems (concrete tank and earthen pond) and a treatment with simulated natural conditions. After 12 months of rearing, total length and weight were greatest in the earthen pond and poorest in the near-natural treatment, with significant differences in total length between the near-natural treatment and the two culture systems. Length-weight relationships showed that the RCC had positive allometry in the culture systems but negative allometry in the near-natural treatment. Competition was evaluated by means of a biotic resistance test and an additive–substitutive experiment between RCC and the native freshwater crab Esanthelphusa dugasti (Rathbun, 1902) (Crustacea: Decapoda: Gecarcinucidae). Specific growth rates after 90 days of the experiments suggest that the crab inhibited growth of RCC. This implies that the invasion of RCC in Thai waters could be limited by competition from resident freshwater crabs.https://aquaticinvasions.arphahub.com/article/103301/download/pdf/ |
| spellingShingle | Tuantong Jutagate Wachira Kwangkhwang Samnao Saowakoon Growth and competitions of the Australian red-claw crayfish, Cherax quadricarinatus (von Martens, 1868) in Thailand: the experimental approaches Aquatic Invasions |
| title | Growth and competitions of the Australian red-claw crayfish, Cherax quadricarinatus (von Martens, 1868) in Thailand: the experimental approaches |
| title_full | Growth and competitions of the Australian red-claw crayfish, Cherax quadricarinatus (von Martens, 1868) in Thailand: the experimental approaches |
| title_fullStr | Growth and competitions of the Australian red-claw crayfish, Cherax quadricarinatus (von Martens, 1868) in Thailand: the experimental approaches |
| title_full_unstemmed | Growth and competitions of the Australian red-claw crayfish, Cherax quadricarinatus (von Martens, 1868) in Thailand: the experimental approaches |
| title_short | Growth and competitions of the Australian red-claw crayfish, Cherax quadricarinatus (von Martens, 1868) in Thailand: the experimental approaches |
| title_sort | growth and competitions of the australian red claw crayfish cherax quadricarinatus von martens 1868 in thailand the experimental approaches |
| url | https://aquaticinvasions.arphahub.com/article/103301/download/pdf/ |
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