Effects of pH and salinity on survival, growth, and enzyme activities in juveniles of the sunray surf clam (Mactra chinensis Philippi)
The study investigated the impact of salinity and pH changes on the survival, growth, and antioxidant enzyme activity in Mactra chinensis Philippi (1.00 ± 0.10 cm shell length, 0.75 ± 0.04 cm shell height), a marine clam species. Juveniles were exposed to various pH levels (5.4 - 9.6) and salinities...
| Main Authors: | , , , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-12-01
|
| Series: | Fish and Shellfish Immunology Reports |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2667011923000348 |
| _version_ | 1797401611289493504 |
|---|---|
| author | Yuanyuan Dai Yubo Dong Feng Yang Zhongzhi Chen Jia Jia Huimin Wu Zilong Chen |
| author_facet | Yuanyuan Dai Yubo Dong Feng Yang Zhongzhi Chen Jia Jia Huimin Wu Zilong Chen |
| author_sort | Yuanyuan Dai |
| collection | DOAJ |
| description | The study investigated the impact of salinity and pH changes on the survival, growth, and antioxidant enzyme activity in Mactra chinensis Philippi (1.00 ± 0.10 cm shell length, 0.75 ± 0.04 cm shell height), a marine clam species. Juveniles were exposed to various pH levels (5.4 - 9.6) and salinities (5 - 35 psu) for up to 20 days at 19 ± 0.5 ˚C. The individual effect of salinity and pH on juveniles were evaluated under pH 8.0 and salinity 30 psu, respectively. The results indicated that the highest survival rates were observed at pH 8.0 (85%, salinity = 30 psu) and salinity 30 psu (95%, pH = 8.0). The survival rates were significantly reduced at extreme pH (≤ 7.2; ≥ 8.4) and salinities (≤ 15; 35 psu). Additionally, oxidative stress was observed in clams exposed to low pH and salinity as indicated by the decreased activities of the antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD). Notably, no significant difference in relative growth rates was observed between salinity 25 and 30 psu, between pH 7.8/8.4 and pH 8.0. Our results provide information on potential impact of pH and salinity changes on economically important bivalve species and may be used to optimize pH and salinity in aquaculture. |
| first_indexed | 2024-03-09T02:12:26Z |
| format | Article |
| id | doaj.art-22a32437e6b844339d43f4d0bcacc7a1 |
| institution | Directory Open Access Journal |
| issn | 2667-0119 |
| language | English |
| last_indexed | 2024-03-09T02:12:26Z |
| publishDate | 2023-12-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Fish and Shellfish Immunology Reports |
| spelling | doaj.art-22a32437e6b844339d43f4d0bcacc7a12023-12-07T05:31:16ZengElsevierFish and Shellfish Immunology Reports2667-01192023-12-015100114Effects of pH and salinity on survival, growth, and enzyme activities in juveniles of the sunray surf clam (Mactra chinensis Philippi)Yuanyuan Dai0Yubo Dong1Feng Yang2Zhongzhi Chen3Jia Jia4Huimin Wu5Zilong Chen6Tianjin Fisheries Research Institute, 442 Jiefang S Rd Hexi District, Tianjin, China 300221Tianjin Fisheries Research Institute, 442 Jiefang S Rd Hexi District, Tianjin, China 300221; Corresponding author.College of Fisheries and Life Science, Dalian Ocean University, Donghai Rd, Ganjingzi District, Dalian, Liaoning, China 116086InnoTech Alberta, P.O Box 4000, Hwy 16A & 75 Street, Vegreville, Alberta, Canada T9C 1T4College of Fisheries and Life Science, Dalian Ocean University, Donghai Rd, Ganjingzi District, Dalian, Liaoning, China 116086Tianjin Fisheries Research Institute, 442 Jiefang S Rd Hexi District, Tianjin, China 300221School of Chemical Engineering and Technology, Hebei University of Technology, No.8 - 1 Rd, Dingzigu, Hongqiao District, Tianjin, China 300132The study investigated the impact of salinity and pH changes on the survival, growth, and antioxidant enzyme activity in Mactra chinensis Philippi (1.00 ± 0.10 cm shell length, 0.75 ± 0.04 cm shell height), a marine clam species. Juveniles were exposed to various pH levels (5.4 - 9.6) and salinities (5 - 35 psu) for up to 20 days at 19 ± 0.5 ˚C. The individual effect of salinity and pH on juveniles were evaluated under pH 8.0 and salinity 30 psu, respectively. The results indicated that the highest survival rates were observed at pH 8.0 (85%, salinity = 30 psu) and salinity 30 psu (95%, pH = 8.0). The survival rates were significantly reduced at extreme pH (≤ 7.2; ≥ 8.4) and salinities (≤ 15; 35 psu). Additionally, oxidative stress was observed in clams exposed to low pH and salinity as indicated by the decreased activities of the antioxidant enzymes catalase (CAT) and superoxide dismutase (SOD). Notably, no significant difference in relative growth rates was observed between salinity 25 and 30 psu, between pH 7.8/8.4 and pH 8.0. Our results provide information on potential impact of pH and salinity changes on economically important bivalve species and may be used to optimize pH and salinity in aquaculture.http://www.sciencedirect.com/science/article/pii/S2667011923000348Mactra chinensis PhilippipHSalinityGrowthSurvivalAntioxidant enzymes |
| spellingShingle | Yuanyuan Dai Yubo Dong Feng Yang Zhongzhi Chen Jia Jia Huimin Wu Zilong Chen Effects of pH and salinity on survival, growth, and enzyme activities in juveniles of the sunray surf clam (Mactra chinensis Philippi) Fish and Shellfish Immunology Reports Mactra chinensis Philippi pH Salinity Growth Survival Antioxidant enzymes |
| title | Effects of pH and salinity on survival, growth, and enzyme activities in juveniles of the sunray surf clam (Mactra chinensis Philippi) |
| title_full | Effects of pH and salinity on survival, growth, and enzyme activities in juveniles of the sunray surf clam (Mactra chinensis Philippi) |
| title_fullStr | Effects of pH and salinity on survival, growth, and enzyme activities in juveniles of the sunray surf clam (Mactra chinensis Philippi) |
| title_full_unstemmed | Effects of pH and salinity on survival, growth, and enzyme activities in juveniles of the sunray surf clam (Mactra chinensis Philippi) |
| title_short | Effects of pH and salinity on survival, growth, and enzyme activities in juveniles of the sunray surf clam (Mactra chinensis Philippi) |
| title_sort | effects of ph and salinity on survival growth and enzyme activities in juveniles of the sunray surf clam mactra chinensis philippi |
| topic | Mactra chinensis Philippi pH Salinity Growth Survival Antioxidant enzymes |
| url | http://www.sciencedirect.com/science/article/pii/S2667011923000348 |
| work_keys_str_mv | AT yuanyuandai effectsofphandsalinityonsurvivalgrowthandenzymeactivitiesinjuvenilesofthesunraysurfclammactrachinensisphilippi AT yubodong effectsofphandsalinityonsurvivalgrowthandenzymeactivitiesinjuvenilesofthesunraysurfclammactrachinensisphilippi AT fengyang effectsofphandsalinityonsurvivalgrowthandenzymeactivitiesinjuvenilesofthesunraysurfclammactrachinensisphilippi AT zhongzhichen effectsofphandsalinityonsurvivalgrowthandenzymeactivitiesinjuvenilesofthesunraysurfclammactrachinensisphilippi AT jiajia effectsofphandsalinityonsurvivalgrowthandenzymeactivitiesinjuvenilesofthesunraysurfclammactrachinensisphilippi AT huiminwu effectsofphandsalinityonsurvivalgrowthandenzymeactivitiesinjuvenilesofthesunraysurfclammactrachinensisphilippi AT zilongchen effectsofphandsalinityonsurvivalgrowthandenzymeactivitiesinjuvenilesofthesunraysurfclammactrachinensisphilippi |