Reproductive and growth parameter estimation utilizing length-Stratified age samples of sandbird octopus (Amphioctopus aegina) near Phetchaburi Province, Thailand
This study aimed to analyze the growth parameters and age-length relationships of the sandbird octopus (Amphioctopus aegina) along the coast of Chao Samran Beach, Phetchaburi Province, Thailand. This included determining reproductive stages, the gonadosomatic index, and size at first maturity. A tot...
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Elsevier
2024-11-01
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844024157994 |
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| author | Charuay Sukhsangchan Nipa Kulanujaree Pawida Prasopsook Sonthaya Phuynoi Praewa Kongmeephol |
| author_facet | Charuay Sukhsangchan Nipa Kulanujaree Pawida Prasopsook Sonthaya Phuynoi Praewa Kongmeephol |
| author_sort | Charuay Sukhsangchan |
| collection | DOAJ |
| description | This study aimed to analyze the growth parameters and age-length relationships of the sandbird octopus (Amphioctopus aegina) along the coast of Chao Samran Beach, Phetchaburi Province, Thailand. This included determining reproductive stages, the gonadosomatic index, and size at first maturity. A total of 1436 specimens comprising 782 males and 654 females were collected using octopus traps during January to December 2021. The mantle length and weight of each specimen were measured. Reproductive stages were assessed to determine the gonadosomatic index and size at first maturity, and growth parameters were estimated using the von Bertalanffy growth equation. Results showed that males exhibited a mantle length range of 3.1–7.5 cm (mean: 5.2 ± 0.7) and a weight range of 5.99–94.00 g (mean: 35.34 ± 11.24). Mantle length at first maturity for males was 4.2 cm, with full maturity at 7.0 cm. Females had a mantle length range of 2.8–9.4 cm (mean: 5.7 ± 0.9) and a weight range of 7.70–105.00 g (mean: 45.43 ± 17.00). Mantle length at first maturity for females was 5.9 cm, with full maturity at 7.5 cm. GSI values were highest in both sexes in February, April, May, June and November, suggesting reproduction occurred through much of the year, and females showed a large peak in May. GSI values were lowest in both sexes in September. The smallest recorded mantle length was 2.8 cm in May, and the largest was 9.4 cm in January. The specific values of t0 for males, females, and both combined sexes were −0.017719, −0.014519, and −0.00672, respectively. These findings provide valuable insights into the growth and reproductive biology of A. aegina, which can inform sustainable management and conservation efforts for this species. |
| format | Article |
| id | doaj-art-2beab6fa80a24d5e9d30dce21fae8c8d |
| institution | Kabale University |
| issn | 2405-8440 |
| language | English |
| publishDate | 2024-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj-art-2beab6fa80a24d5e9d30dce21fae8c8d2024-11-15T06:13:29ZengElsevierHeliyon2405-84402024-11-011021e39768Reproductive and growth parameter estimation utilizing length-Stratified age samples of sandbird octopus (Amphioctopus aegina) near Phetchaburi Province, ThailandCharuay Sukhsangchan0Nipa Kulanujaree1Pawida Prasopsook2Sonthaya Phuynoi3Praewa Kongmeephol4Department of Marine Science, Faculty of Fisheries, Kasetsart University, Bangkok, 10900, Thailand; Corresponding author.Fisheries Resource Assessment Group, Marine Fisheries Research and Development Division, Department of Fisheries, Bangkok, 10900, ThailandDepartment of Marine Science, Faculty of Fisheries, Kasetsart University, Bangkok, 10900, ThailandKey Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, ChinaDepartment of Marine Science, Faculty of Fisheries, Kasetsart University, Bangkok, 10900, Thailand; Key Laboratory of Mariculture, Ministry of Education, Ocean University of China, Qingdao, 266003, ChinaThis study aimed to analyze the growth parameters and age-length relationships of the sandbird octopus (Amphioctopus aegina) along the coast of Chao Samran Beach, Phetchaburi Province, Thailand. This included determining reproductive stages, the gonadosomatic index, and size at first maturity. A total of 1436 specimens comprising 782 males and 654 females were collected using octopus traps during January to December 2021. The mantle length and weight of each specimen were measured. Reproductive stages were assessed to determine the gonadosomatic index and size at first maturity, and growth parameters were estimated using the von Bertalanffy growth equation. Results showed that males exhibited a mantle length range of 3.1–7.5 cm (mean: 5.2 ± 0.7) and a weight range of 5.99–94.00 g (mean: 35.34 ± 11.24). Mantle length at first maturity for males was 4.2 cm, with full maturity at 7.0 cm. Females had a mantle length range of 2.8–9.4 cm (mean: 5.7 ± 0.9) and a weight range of 7.70–105.00 g (mean: 45.43 ± 17.00). Mantle length at first maturity for females was 5.9 cm, with full maturity at 7.5 cm. GSI values were highest in both sexes in February, April, May, June and November, suggesting reproduction occurred through much of the year, and females showed a large peak in May. GSI values were lowest in both sexes in September. The smallest recorded mantle length was 2.8 cm in May, and the largest was 9.4 cm in January. The specific values of t0 for males, females, and both combined sexes were −0.017719, −0.014519, and −0.00672, respectively. These findings provide valuable insights into the growth and reproductive biology of A. aegina, which can inform sustainable management and conservation efforts for this species.http://www.sciencedirect.com/science/article/pii/S2405844024157994Sandbird octopusAmphioctopus aeginaSize at first maturityGrowth parameterAge estimation |
| spellingShingle | Charuay Sukhsangchan Nipa Kulanujaree Pawida Prasopsook Sonthaya Phuynoi Praewa Kongmeephol Reproductive and growth parameter estimation utilizing length-Stratified age samples of sandbird octopus (Amphioctopus aegina) near Phetchaburi Province, Thailand Heliyon Sandbird octopus Amphioctopus aegina Size at first maturity Growth parameter Age estimation |
| title | Reproductive and growth parameter estimation utilizing length-Stratified age samples of sandbird octopus (Amphioctopus aegina) near Phetchaburi Province, Thailand |
| title_full | Reproductive and growth parameter estimation utilizing length-Stratified age samples of sandbird octopus (Amphioctopus aegina) near Phetchaburi Province, Thailand |
| title_fullStr | Reproductive and growth parameter estimation utilizing length-Stratified age samples of sandbird octopus (Amphioctopus aegina) near Phetchaburi Province, Thailand |
| title_full_unstemmed | Reproductive and growth parameter estimation utilizing length-Stratified age samples of sandbird octopus (Amphioctopus aegina) near Phetchaburi Province, Thailand |
| title_short | Reproductive and growth parameter estimation utilizing length-Stratified age samples of sandbird octopus (Amphioctopus aegina) near Phetchaburi Province, Thailand |
| title_sort | reproductive and growth parameter estimation utilizing length stratified age samples of sandbird octopus amphioctopus aegina near phetchaburi province thailand |
| topic | Sandbird octopus Amphioctopus aegina Size at first maturity Growth parameter Age estimation |
| url | http://www.sciencedirect.com/science/article/pii/S2405844024157994 |
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