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RESEARCH ARTICLE (Open Access)

Changes in environmental salinity during the life of Pangasius krempfi in the Mekong Delta (Vietnam) estimated from otolith Sr : Ca ratios

Ngan T. Tran A C , Maylis Labonne B , Huy D. Hoang A and Jacques Panfili A B
+ Author Affiliations
- Author Affiliations

A Vietnam National University Ho Chi Minh City–University of Science, 227 Nguyen Van Cu, District 5, Ho Chi Minh City, Vietnam.

B Marine Biodiversity, Exploitation and Conservation (MARBEC), Institut de Recherche pour le Développement (IRD), Institut Français de Recherche pour l’Exploitation de la Mer (Ifremer), Université de Montpellier (UM), Centre national de la recherche scientifique (CNRS), cc093, Place E. Bataillon, F-34095 Montpellier, France.

C Corresponding author. Email: ttngan@hcmus.edu.vn

Marine and Freshwater Research 70(12) 1734-1746 https://doi.org/10.1071/MF18269
Submitted: 27 July 2018  Accepted: 1 May 2019   Published: 13 August 2019

Journal Compilation © CSIRO 2019 Open Access CC BY-NC-ND

Abstract

Pangasius krempfi is a commercially important catfish in the Mekong River and is believed to migrate along the Mekong River basin. To verify this migration, elemental concentrations were measured in the water and in otoliths to infer the salinity of the water through the fish’s lifetime. In 2017, eight element concentrations were measured along the Mekong Delta using solution-based inductively coupled plasma mass spectrometry (ICP-MS). Concentrations of Sr, Li and Rb were strongly and positively correlated with salinity. Otoliths were taken from P. krempfi caught in the brackish waters of the lower Mekong Delta and seven element : Ca ratios were measured from the core to the otolith edge using laser ablation ICP-MS. The Sr : Ca, Ba : Ca, P : Ca and Mn : Ca ratios varied through the lifetime of the fish, but only Sr : Ca was suitable for estimating ambient salinity. The Sr : Ca profiles in otoliths were analysed and significantly correlated between individuals, with all fish hatched in water with very low levels of salinity, indicating a single freshwater spawning ground, and then living in waters with higher salinity, with two types of migration behaviour. Some individuals may return to low-salinity waters when older. These conclusions were supported by the Ba : Ca and Mn : Ca ratios. These migration patterns may have implications for fishery management.

Additional keywords: behaviour, climate change, diadromous fish, microchemistry, Pangasiidae.


References

Alibert, C., Kinsley, L., Fallon, S. J., McCulloch, M. T., Berkelmans, R., and McAllister, F. (2003). Source of trace element variability in Great Barrier Reef corals affected by the Burdekin flood plumes. Geochimica et Cosmochimica Acta 67, 231–246.
Source of trace element variability in Great Barrier Reef corals affected by the Burdekin flood plumes.Crossref | GoogleScholarGoogle Scholar |

Baird, I. (2013). Pa Souay Hang Leuang Pangasius krempfi. In ‘The IUCN Red List of Threatened Species 2011’. e.T181328A7668262. (International Union for Conservation of Nature and Natural Resources.) Available at https://www.iucnredlist.org/species/181328/7668262 [Verified 27 November 2018].

Baird, I. G., Flaherty, M. S., and Phylavanh, B. (2004). Mekong River Pangasiidae catfish migration and the Khone falls wing trap fishery in Southern Laos. Natural History Bulletin of Siam Society 52, 81–109.

Baran, E., Baird, I., and Cans, G. (2005). ‘Fisheries Bioecology at the Khone Falls (Mekong River, Southern Laos).’ (WorldFish Center: Penang, Malaysia.)

Beck, M. W., Heck, K. L., Able, K. W., Childers, D. L., Eggleston, D. B., Gillanders, B. M., Halpern, B., Hays, C. G., Hoshino, K., Minello, T. J., Orth, R. J., Sheridan, P. F., and Weinstein, M. P. (2001). The identification, conservation, and management of estuarine and marine nurseries for fish and invertebrates: a better understanding of the habitats that serve as nurseries for marine species and the factors that create site-specific variability in nursery quality will improve conservation and management of these areas. Bioscience 51, 633–641.
The identification, conservation, and management of estuarine and marine nurseries for fish and invertebrates: a better understanding of the habitats that serve as nurseries for marine species and the factors that create site-specific variability in nursery quality will improve conservation and management of these areas.Crossref | GoogleScholarGoogle Scholar |

Campana, S. E. (1999). Chemistry and composition of fish otoliths: pathways, mechanisms and applications. Marine Ecology Progress Series 188, 263–297.
Chemistry and composition of fish otoliths: pathways, mechanisms and applications.Crossref | GoogleScholarGoogle Scholar |

Carlson, A. K., Phelps, Q. E., and Graeb, B. D. S. (2017). Chemistry to conservation: using otoliths to advance recreational and commercial fisheries management. Journal of Fish Biology 90, 505–527.
Chemistry to conservation: using otoliths to advance recreational and commercial fisheries management.Crossref | GoogleScholarGoogle Scholar | 27704556PubMed |

Correia, A., Hamer, P., Carocinho, B., and Silva, A. (2014). Evidence for meta-population structure of Sardina pilchardus in the Atlantic Iberian waters from otolith elemental signatures of a strong cohort. Fisheries Research 149, 76–85.
Evidence for meta-population structure of Sardina pilchardus in the Atlantic Iberian waters from otolith elemental signatures of a strong cohort.Crossref | GoogleScholarGoogle Scholar |

Diouf, K., Panfili, J., Labonne, M., Aliaume, C., Tomás, J., and Do, C. T. (2006). Effects of salinity on strontium:calcium ratios in the otoliths of the West African black-chinned tilapia Sarotherodon melanotheron in a hypersaline estuary. Environmental Biology of Fishes 77, 9–20.
Effects of salinity on strontium:calcium ratios in the otoliths of the West African black-chinned tilapia Sarotherodon melanotheron in a hypersaline estuary.Crossref | GoogleScholarGoogle Scholar |

Dorval, E., Jones, C. M., Hannigan, R., and Montfrans, J. v. (2007). Relating otolith chemistry to surface water chemistry in a coastal plain estuary. Canadian Journal of Fisheries and Aquatic Sciences 64, 411–424.
Relating otolith chemistry to surface water chemistry in a coastal plain estuary.Crossref | GoogleScholarGoogle Scholar |

Dugan, P. J., Barlow, C., Agostinho, A. A., Baran, E., Cada, G. F., Chen, D., Cowx, I. G., Ferguson, J. W., Jutagate, T., Mallen-Cooper, M., Marmulla, G., Nestler, J., Petrere, M., Welcomme, R. L., and Winemiller, K. O. (2010). Fish migration, dams, and loss of ecosystem services in the Mekong basin. Ambio 39, 344–348.
Fish migration, dams, and loss of ecosystem services in the Mekong basin.Crossref | GoogleScholarGoogle Scholar | 20799685PubMed |

Elsdon, T. S., and Gillanders, B. M. (2002). Interactive effects of temperature and salinity on otolith chemistry: challenges for determining environmental histories of fish. Canadian Journal of Fisheries and Aquatic Sciences 59, 1796–1808.
Interactive effects of temperature and salinity on otolith chemistry: challenges for determining environmental histories of fish.Crossref | GoogleScholarGoogle Scholar |

Elsdon, T. S., and Gillanders, B. M. (2005). Consistency of patterns between laboratory experiments and field collected fish in otolith chemistry: an example and applications for salinity reconstructions. Marine and Freshwater Research 56, 609–617.
Consistency of patterns between laboratory experiments and field collected fish in otolith chemistry: an example and applications for salinity reconstructions.Crossref | GoogleScholarGoogle Scholar |

Ferguson, J. W., Healey, M., Dugan, P., and Barlow, C. (2011). Potential effects of dams on migratory fish in the Mekong river: lessons from Salmon in the Fraser and Columbia rivers. Environmental Management 47, 141–159.
Potential effects of dams on migratory fish in the Mekong river: lessons from Salmon in the Fraser and Columbia rivers.Crossref | GoogleScholarGoogle Scholar | 20924582PubMed |

Fukushima, M., Jutagate, T., Grudpan, C., Phomikong, P., and Nohara, S. (2014). Potential effects of hydroelectric dam development in the Mekong river basin on the migration of Siamese mud carp (Henicorhynchus siamensis and H. lobatus) elucidated by otolith microchemistry. PLoS One 9, e103722.
Potential effects of hydroelectric dam development in the Mekong river basin on the migration of Siamese mud carp (Henicorhynchus siamensis and H. lobatus) elucidated by otolith microchemistry.Crossref | GoogleScholarGoogle Scholar | 25099147PubMed |

Gillanders, B. M. (2005a). Otolith chemistry to determine movements of diadromous and freshwater fish. Aquatic Living Resources 18, 291–300.
Otolith chemistry to determine movements of diadromous and freshwater fish.Crossref | GoogleScholarGoogle Scholar |

Gillanders, B. M. (2005b). Using elemental chemistry of fish otoliths to determine connectivity between estuarine and coastal habitats. Estuarine, Coastal and Shelf Science 64, 47–57.
Using elemental chemistry of fish otoliths to determine connectivity between estuarine and coastal habitats.Crossref | GoogleScholarGoogle Scholar |

Gillanders, B. M., and Munro, A. R. (2009). Relations between water chemistry, otolith chemistry and salinity of hypersaline system: implications for determining past environmental history of fish. (CSIRO Water for a Healthy Country National Research Flagship: Adelaide, SA, Australia.) Available at http://www.clw.csiro.au/publications/waterforahealthycountry/cllamm/CLLAMM-environmental-history-of-fish.pdf [Verified 7 August 2019].

Gillanders, B. M., and Munro, A. R. (2012). Hypersaline waters pose new challenges for reconstructing environmental histories of fish based on otolith chemistry. Limnology and Oceanography 57, 1136–1148.
Hypersaline waters pose new challenges for reconstructing environmental histories of fish based on otolith chemistry.Crossref | GoogleScholarGoogle Scholar |

Gupta, A. (2012). Geology and landforms of the Mekong Basin. In ‘The Mekong: Biophysical Environment of an International River Basin’. (Ed. I. Campbell.) pp. 29–51. (Academic Press: Oxford, UK.)

Halls, A.S., and Johns, M. (2013). Assessment of the vulnerability of the Mekong Delta Pangasius catfish industry to development and climate change in the Lower Mekong Basin. Report prepared for the Sustainable Fisheries Partnership. Johns Associates Limited, Wiltshire, UK.

Hicks, A., Closs, G., and Swearer, S. (2010). Otolith microchemistry of two amphidromous galaxiids across an experimental salinity gradient: a multi-element approach for tracking diadromous migrations. Journal of Experimental Marine Biology and Ecology 394, 86–97.
Otolith microchemistry of two amphidromous galaxiids across an experimental salinity gradient: a multi-element approach for tracking diadromous migrations.Crossref | GoogleScholarGoogle Scholar |

Hogan, Z. S. (2011a). Ecology and conservation of large-bodied freshwater catfish: a global perspective. In ‘Conservation, Ecology, and Management of Catfish’. (Eds P. H. Michaletz and V. H. Travnichek.) Vol. 77, pp. 39–53. (American Fisheries Society: Bethesda, MD, USA.)

Hogan, Z. S. (2011b). Review of migratory freshwater fish. In ‘Convention on the Conservation of Migratory Species of Wild Animals. Tenth Meeting of the Conference of the Parties’, 20–25 November 2011, Bergen, Norway. UNEP/CMS/Inf.10.33. (Convention on the Conservation of Migratory Species of Wild Animals: Bonn, Germany.) Available at https://www.cms.int/sites/default/files/document/inf_33_freshwater_fish_eonly_0.pdf [Verified 11 June 2019].

Hogan, Z., Baird, I. G., Radtkek, R., and Zanden, M. J. V. (2007). Long distance migration and marine habitation in the tropical Asian catfish, Pangasius krempfi. Journal of Fish Biology 71, 818–832.
Long distance migration and marine habitation in the tropical Asian catfish, Pangasius krempfi.Crossref | GoogleScholarGoogle Scholar |

Javor, B. J., and Dorval, E. (2016). Sarability of trace elements in otolith of juvenile Pacific sardine Sardinops Sagax. California Cooperative Oceanic Fisheries Investigations Reports 57, 109–123.

Joint Assessment Teams (2016). Viet Nam drought and saltwater intrusion rapid assessment report. Ministry of Agriculture Rural Development (MARD), Ministry of Health (MoH), People’s Aid Coordinating Committee (PACCOM), UN and INGOs. Available at https://reliefweb.int/sites/reliefweb.int/files/resources/Viet%20Nam%20Drought%20Assessment%20Report.pdf [Verified 11 June 2019].

Junge, C., Museth, J., Hindar, K., Kraabøl, M., and Vøllestad, L. A. (2014). Assessing the consequences of habitat fragmentation for two migratory salmonid fishes. Aquatic Conservation 24, 297–311.
Assessing the consequences of habitat fragmentation for two migratory salmonid fishes.Crossref | GoogleScholarGoogle Scholar |

Labonne, M., Morize, E., Scolan, P., Lae, R., Dabas, E., and Bohn, M. (2009). Impact of salinity on early life history traits of three estuarine fish species in Senegal. Estuarine, Coastal and Shelf Science 82, 673–681.
Impact of salinity on early life history traits of three estuarine fish species in Senegal.Crossref | GoogleScholarGoogle Scholar |

Lin, S.-H., Chang, C.-W., Iizuka, Y., and Tzeng, W.-N. (2007). Salinities, not diets, affect strontium/calcium ratios in otoliths of Anguilla japonica. Journal of Experimental Marine Biology and Ecology 341, 254–263.
Salinities, not diets, affect strontium/calcium ratios in otoliths of Anguilla japonica.Crossref | GoogleScholarGoogle Scholar |

Nozaki, Y., Yamamoto, Y., Manaka, T., Amakawa, H., and Snidvongs, A. (2001). Dissolved barium and radium isotopes in the Chao Phraya River estuarine mixing zone in Thailand. Continental Shelf Research 21, 1435–1448.
Dissolved barium and radium isotopes in the Chao Phraya River estuarine mixing zone in Thailand.Crossref | GoogleScholarGoogle Scholar |

Panfili, J., Tom, Á. S. J., and Morales-Nin, B. (2009). Otolith microstructure in tropical fish. In ‘Tropical Fish Otoliths: Information for Assessment, Management and Ecology’. (Eds B. S. Green, B. D. Mapstone, G. Carlos, and G. A. Begg.) pp. 212–248. (Springer: Dordrecht, Netherlands.)

Panfili, J., Darnaude, A. M., Lin, Y. J., Chevalley, M., Iizuka, Y., Tzeng, W. N., and Crivelli, A. J. (2012). Habitat residence during continental life of the European eel Anguilla anguilla investigated using linear discriminant analysis applied to otolith Sr : Ca ratios. Aquatic Biology 15, 175–185.
Habitat residence during continental life of the European eel Anguilla anguilla investigated using linear discriminant analysis applied to otolith Sr : Ca ratios.Crossref | GoogleScholarGoogle Scholar |

Panfili, J., Darnaude, A. M., Vigliola, L., Jacquart, A., Labonne, M., and Gilles, S. (2015). Experimental evidence of complex relationships between the ambient salinity and the strontium signature of fish otoliths. Journal of Experimental Marine Biology and Ecology 467, 65–70.
Experimental evidence of complex relationships between the ambient salinity and the strontium signature of fish otoliths.Crossref | GoogleScholarGoogle Scholar |

Poulsen, A. F., Poeu, O., Viravong, S., Suntornratana, U., and Tung, N. T. (2002). Fish migrations of the Lower Mekong River Basin: implications for development, planning and environmental management. MRC Technical Paper number 8, Mekong River Commission, Phnom Penh, Cambodia.

Poulsen, A. F., Hortle, K. G., Valbo-Jorgensen, J. S., Chan, C. K. C., Viravong, S., Bouakhamvongsa, K., Suntornratana, U., Yoorong, N., Nguyen, T. T., and Tran, B. Q. (2004). Distribution and ecology of some important riverine fish species of the Mekong River Basin. MRC Technical Paper number 10, Mekong River Commission, Phnom Penh, Cambodia.

Quyen, N. T. K., Berg, H., Gallardo, W., and Da, C. T. (2017). Stakeholders’ perceptions of ecosystem services and Pangasius catfish farming development along the Hau River in the Mekong Delta, Vietnam. Ecosystem Services 25, 2–14.
Stakeholders’ perceptions of ecosystem services and Pangasius catfish farming development along the Hau River in the Mekong Delta, Vietnam.Crossref | GoogleScholarGoogle Scholar |

Rainboth, W. J. (1996). ‘Fishes of the Cambodian Mekong. FAO Species Identification Field Guide for Fishery Purposes.’ (FAO: Rome, Italy.)

Rainboth, W. J., Vidthayanon, C., and Yên, M. Đ. (2012). ‘Fishes of the Greater Mekong Ecosystem with Species List and Photographic Atlas.’ (Museum of Zoology, University of Michigan: Ann Arbor, MI, USA.)

Reist, J. D., Wrona, F. J., Prowse, T. D., Power, M., Dempson, J. B., King, J. R., and Beamish, R. J. (2006). An overview of effects of climate change on selected Arctic freshwater and anadromous fishes. Ambio 35, 381–387.
An overview of effects of climate change on selected Arctic freshwater and anadromous fishes.Crossref | GoogleScholarGoogle Scholar | 17256642PubMed |

Rodriguez, J. A., Adler, D. M., Brand, P. C., Broholm, C., Cook, J. C., Brocker, C., Hammond, R., Huang, Z., Hundertmark, P., Lynn, J. W., Maliszewskyj, N. C., Moyer, J., Orndorff, J., Pierce, D., Pike, T. D., Scharfstein, G., Smee, S. A., and Vilaseca, R. (2008). MACS – a new high intensity cold neutron spectrometer at NIST. Measurement Science & Technology 19, 034023.
MACS – a new high intensity cold neutron spectrometer at NIST.Crossref | GoogleScholarGoogle Scholar |

Ruttenberg, B., Hickford, M., Paradis, G., Sheehy, M. S., Standish, J. D., Ben-Tzvi, O., and Warner, R. (2005). Elevated levels of trace elements in cores of otoliths and their potential for use as natural tags. Marine Ecology Progress Series 297, 273–281.
Elevated levels of trace elements in cores of otoliths and their potential for use as natural tags.Crossref | GoogleScholarGoogle Scholar |

Sarimin, A. S., and Mohamed, C. A. R. (2014). Sr/Ca, Mg/Ca and Ba/Ca ratios in the otolith of sea bass in Peninsular Malaysia as salinity influence markers. Sains Malaysiana 43, 757–766.

Sirot, C., Ferraton, F., Panfili, J., Childs, A. R., Guilhaumon, F., and Darnaude, A. M. (2017). ElementR: an R package for reducing elemental data from LA‐ICPMS analysis of biological calcified structures. Methods in Ecology and Evolution 8, 1659–1667.
ElementR: an R package for reducing elemental data from LA‐ICPMS analysis of biological calcified structures.Crossref | GoogleScholarGoogle Scholar |

Southern Institute of Water Resources Research (2016). Report on salinity intrusion in coastal at Mekong Delta and recommendation for drought resistance. SIWRR, Ho Chi Minh City, Vietnam.

Stone, R. (2016). ‘Dam-Building Threatens Mekong Fisheries.’ (American Association for the Advancement of Science: Washington, DC, USA.)

Strayer, D. L., and Dudgeon, D. (2010). Freshwater biodiversity conservation: recent progress and future challenges. The North American Benthological Society 29, 344–358.
Freshwater biodiversity conservation: recent progress and future challenges.Crossref | GoogleScholarGoogle Scholar |

Strnad, L., Ettler, V., Mihaljevic, M., Hladil, J., and Chrastny, V. (2009). Determination of trace elements in calcite using solution and laser ablation ICP‐MS: calibration to NIST SRM glass and USGS MACS carbonate, and application to real landfill calcite. Geostandards and Geoanalytical Research 33, 347–355.
Determination of trace elements in calcite using solution and laser ablation ICP‐MS: calibration to NIST SRM glass and USGS MACS carbonate, and application to real landfill calcite.Crossref | GoogleScholarGoogle Scholar |

Sturrock, A. M., Trueman, C. N., Milton, J. A., Waring, C. P., Cooper, M. J., and Hunter, E. (2014). Physiological influences can outweigh environmental signals in otolith microchemistry research. Marine Ecology Progress Series 500, 245–264.
Physiological influences can outweigh environmental signals in otolith microchemistry research.Crossref | GoogleScholarGoogle Scholar |

Vidthayanon, C. (2008). ‘Field Guide to Fishes of the Mekong Delta, Lao PDR.’ (Mekong River Commission: Vientiane, Laos.)

Vo, T. K. (2012). Hydrology and hydraulic infrastructure systems in the Mekong Delta, Vietnam. In ‘The Mekong Delta System: Interdisciplinary Analyses of a River Delta’. (Eds F. G. Renaud and C. Kuenzer.) pp. 49–81. (Springer: Dordrecht, Netherlands.)

Vu, V. A., Nguyen, N. D., Hidas, E., and Nguyen, M. N. (2009). Vam Nao deep pools: a critical habitat for Pangasius krempfi and other valuable species in the Mekong Delta, Vietnam. Asian Fisheries Science 22, 631–639.

Webb, S. D., Woodcock, S. H., and Gillanders, B. M. (2012). Sources of otolith barium and strontium in estuarine fish and the influence of salinity and temperature. Marine Ecology Progress Series 453, 189–199.
Sources of otolith barium and strontium in estuarine fish and the influence of salinity and temperature.Crossref | GoogleScholarGoogle Scholar |

Wells, B. K., Rieman, B. E., Clayton, J. L., Horan, D. L., and Jones, C. M. (2003). Relationships between water, otolith, and scale chemistries of westslope cutthroat trout from the Coeur d’Alene River, Idaho: the potential application of hard-part chemistry to describe movements in freshwater. Transactions of the American Fisheries Society 132, 409–424.
Relationships between water, otolith, and scale chemistries of westslope cutthroat trout from the Coeur d’Alene River, Idaho: the potential application of hard-part chemistry to describe movements in freshwater.Crossref | GoogleScholarGoogle Scholar |

Zimmerman, C. E. (2005). Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids. Canadian Journal of Fisheries and Aquatic Sciences 62, 88–97.
Relationship of otolith strontium-to-calcium ratios and salinity: experimental validation for juvenile salmonids.Crossref | GoogleScholarGoogle Scholar |