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Behbehani M, Uddin S, Habibi N, Al-Sarawi HA, Al-Enezi Y. The Reproductive Capacities of the Calanoid Copepods Parvocalanus crassirostis and Acartia pacifica under Different pH and Temperature Conditions. Animals (Basel) 2023; 13:2160. [PMID: 37443958 DOI: 10.3390/ani13132160] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2023] [Revised: 06/06/2023] [Accepted: 06/29/2023] [Indexed: 07/15/2023] Open
Abstract
The increasing atmospheric CO2 concentrations and warming of marine waters have encouraged experiments on multi-stressor interactions in marine organisms. We conducted a multigenerational experiment to assess reproductive capacities regarding egg production in calanoid copepods Parvocalanus crassirostis and Acartia pacifica under different pH and temperature conditions. The experimental set-up allowed assessing the tandem effect of warming and acidification on the number of eggs produced by healthy copepod pairs under two pH conditions of 8.20 and 7.50 (hard selection) as well as with a gradual reduction of 0.05 pH units at each generation (soft selection). The results are quite interesting, with very diverse performance across temperatures. The number of eggs produced under hard selection was higher at pH 8.20 compared to pH 7.50 for both species, with the maximum number of eggs produced at 24-28 °C, whereas under soft selection, there was no significant difference in the egg production rate at 24-28 °C across generations and there was an improvement in the number of eggs produced at 8-16 °C. The results provide evidence that in a future ocean scenario of lower pH and higher temperature, the two species, and possibly the copepod population at large, might not decrease. Copepod populations might be resilient, and the transcriptomic evidence of adaptation to increased temperature and lower pH is a ray of hope. We believe further studies are needed to provide more robust datasets to underpin the hypothesis of adaptation to climate change.
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Affiliation(s)
- Montaha Behbehani
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - Saif Uddin
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - Nazima Habibi
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | | | - Yousef Al-Enezi
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
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Behbehani M, Uddin S, Dupont S, Fowler SW, Gorgun AU, Al-Enezi Y, Al-Musallam L, Kumar VV, Faizuddin M. Ocean Acidification-Mediated Food Chain Transfer of Polonium between Primary Producers and Consumers. TOXICS 2022; 11:14. [PMID: 36668740 PMCID: PMC9862112 DOI: 10.3390/toxics11010014] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/07/2022] [Revised: 12/19/2022] [Accepted: 12/21/2022] [Indexed: 06/17/2023]
Abstract
Phytoplankton and zooplankton are key marine components that play an important role in metal distribution through a food web transfer. An increased phytoplankton concentration as a result of ocean acidification and warming are well-established, along with the fact that phytoplankton biomagnify 210Po by 3−4 orders of magnitude compared to the seawater concentration. This experimental study is carried out to better understand the transfer of polonium between primary producers and consumers. The experimental produced data highlight the complex interaction between the polonium concentration in zooplankton food, i.e. phytoplankton, its excretion via defecated fecal pellets, and its bioaccumulation at ambient seawater pH and a lower pH of 7.7, typical of ocean acidification scenarios in the open ocean. The mass of copepods recovered was 11% less: 7.7 pH compared to 8.2. The effects of copepod species (n = 3), microalgae species (n = 3), pH (n = 2), and time (n = 4) on the polonium activity in the fecal pellets (expressed as % of the total activity introduced through feeding) was tested using an ANOVA 4. With the exception of time (model: F20, 215 = 176.84, p < 0.001; time: F3 = 1.76, p = 0.16), all tested parameters had an impact on the polonium activity (copepod species: F2 = 169.15, p < 0.0001; algae species: F2 = 10.21, p < 0.0001; pH: F1 = 9.85, p = 0.002) with complex interactions (copepod x algae: F2 = 19.48, p < 0.0001; copepod x pH: F2 = 10.54, p < 0.0001; algae x pH: F2 = 4.87, p = 0.009). The experimental data underpin the hypothesis that metal bioavailability and bioaccumulation will be enhanced in secondary consumers such as crustacean zooplankton due to ocean acidification.
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Affiliation(s)
- Montaha Behbehani
- Environment Pollution and Climate Program, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - Saif Uddin
- Environment Pollution and Climate Program, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - Sam Dupont
- Department for Biological and Environmental Sciences, University of Gothenburg, Kristineberg 566, 451 78 Fiskebäckskil, Sweden
- Radioecology Laboratory, International Atomic Energy Agency (IAEA), 4 Quai Antoine 1er, 98000 Monaco, Monaco
| | - Scott W. Fowler
- School of Marine and Atmospheric Sciences, Stony Brook University, Stony Brook, New York, NY 11794-5000, USA
| | - Aysun U. Gorgun
- Institute of Nuclear Sciences, Ege University, 35100 Bornova/İzmir, Turkey
| | - Yousef Al-Enezi
- Environment Pollution and Climate Program, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - Lamya Al-Musallam
- Environment Pollution and Climate Program, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - Vanitha V. Kumar
- Environment Pollution and Climate Program, Kuwait Institute for Scientific Research, Safat 13109, Kuwait
| | - Mohammad Faizuddin
- Gulf Geoinformation Solutions, Hamariya Free Zone, P.O. Box 32223 Sharjah, United Arab Emirates
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Habibi N, Uddin S, Bottein MYD, Faizuddin M. Ciguatera in the Indian Ocean with Special Insights on the Arabian Sea and Adjacent Gulf and Seas: A Review. Toxins (Basel) 2021; 13:525. [PMID: 34437396 PMCID: PMC8402595 DOI: 10.3390/toxins13080525] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2021] [Revised: 07/20/2021] [Accepted: 07/22/2021] [Indexed: 11/17/2022] Open
Abstract
The dinoflagellates of the genus Gambierdiscus are found in almost all oceans and seas between the coordinates 35° N and 35° S. Gambierdiscus and Fukuyoa are producers of ciguatoxins (CTXs), which are known to cause foodborne disease associated with contaminated seafood. The occurrence and effects of CTXs are well described in the Pacific and the Caribbean. However, historically, their properties and presence have been poorly documented in the Indian Ocean (including the Bay of Bengal, Andaman Sea, and the Gulf). A higher occurrence of these microorganisms will proportionately increase the likelihood of CTXs entering the food chain, posing a severe threat to human seafood consumers. Therefore, comprehensive research strategies are critically important for developing effective monitoring and risk assessments of this emerging threat in the Indian Ocean. This review presents the available literature on ciguatera occurrence in the region and its adjacent marginal waters: aiming to identify the data gaps and vectors.
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Affiliation(s)
- Nazima Habibi
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait;
| | - Saif Uddin
- Environment and Life Sciences Research Center, Kuwait Institute for Scientific Research, Safat 13109, Kuwait;
| | | | - Mohd Faizuddin
- Gulf Geoinformation Solutions, Sharjah, United Arab Emirates;
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Saleh A, Vajed Samiei J, Amini-Yekta F, Seyed Hashtroudi M, Chen CTA, Fumani NS. The carbonate system on the coral patches and rocky intertidal habitats of the northern Persian Gulf: Implications for ocean acidification studies. MARINE POLLUTION BULLETIN 2020; 151:110834. [PMID: 32056626 DOI: 10.1016/j.marpolbul.2019.110834] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/11/2019] [Revised: 12/07/2019] [Accepted: 12/15/2019] [Indexed: 06/10/2023]
Abstract
This research characterizes the temporal and spatial variability of the seawater carbonate chemistry on the near-shore waters of the northern Persian Gulf and Makran Sea. In general, normalized total alkalinity (nAT) showed a westward decrease along the coasts of Makran Sea and the Persian Gulf. Intertidal seawater was always supersaturated in terms of calcium carbonate minerals during the daytime. Rocky shore waters in the Persian Gulf were sinks for CO2 in the winter during the daytime. The nAT decreased from Larak to Khargu Island by 81 μmol/kg. As expected, the two hypothetical drivers of bio-calcification, i.e., Ω and the [HCO3-]/[H+] ratio, were significantly related at a narrow range of ambient temperature. However, as data were pooled over seasons and study sites, in contrast to ΩAr, the [HCO3-]/[H+] ratio showed a slight dependence on temperature, suggesting that the ratio should be investigated as a more reliable factor in future biocalcification researches.
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Affiliation(s)
- Abolfazl Saleh
- Iranian National Institute for Oceanography and Atmospheric Science, No. 3, Etemadzadeh St., Fatemi Ave., Tehran 1411813389, Iran.
| | - Jahangir Vajed Samiei
- Department of Marine Ecology, GEOMAR Helmholtz Centre for Ocean Research Kiel, Kiel, Germany
| | - Fatemeh Amini-Yekta
- Iranian National Institute for Oceanography and Atmospheric Science, No. 3, Etemadzadeh St., Fatemi Ave., Tehran 1411813389, Iran
| | - Mehri Seyed Hashtroudi
- Iranian National Institute for Oceanography and Atmospheric Science, No. 3, Etemadzadeh St., Fatemi Ave., Tehran 1411813389, Iran
| | - Chen-Tung Arthur Chen
- Department of Oceanography, National Sun Yat-sen University, Kaohsiung 80424, Taiwan, ROC.
| | - Neda Sheijooni Fumani
- Iranian National Institute for Oceanography and Atmospheric Science, No. 3, Etemadzadeh St., Fatemi Ave., Tehran 1411813389, Iran
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