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Rivas-Mena G, Sánchez-Guerrero-Hernández MJ, Yeste MP, Ramos F, González-Ortegón E. Microplastics in the stomach content of the commercial fish species Scomber colias in the Gulf of Cadiz, SW Europe. Mar Pollut Bull 2024; 200:116049. [PMID: 38290360 DOI: 10.1016/j.marpolbul.2024.116049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/03/2023] [Revised: 01/12/2024] [Accepted: 01/13/2024] [Indexed: 02/01/2024]
Abstract
Concerning microplastics (MPs) contamination is increasing due their negative impacts on marine food webs and their potential toxicity to wildlife and humans. In this study, we analyze the presence of MPs in the stomachs of the commercial fish species Scomber colias (Atlantic chub mackerel) in the Gulf of Cadiz (GoC). Out of the 104 analyzed stomachs, 90.4 % contained some type of MPs, with an average of 5.4 MPs per individual. Of the 1152 MPs analyzed, 91.1 % were fibers, and 8.9 % fragments type. Fourier Transformation Infrared Spectrometry analysis was performed on 152 items, revealing that 73.6 % were MPs. The most common synthetic polymers found were polyamide (64 %), polypropylene (15 %), polystyrene (12 %), polyvinyl chloride (5 %), and polyethylene (4 %). The consistent ingestion of synthetic polymers by the individuals of Atlantic chub mackerel across different zones might suggest an even distribution of MP contamination throughout the GoC.
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Affiliation(s)
- Gabriel Rivas-Mena
- Institute of Marine Sciences of Andalusia, Spanish National Research Council (ICMAN-CSIC), Puerto Real, Spain
| | - Miguel Jorge Sánchez-Guerrero-Hernández
- Institute of Marine Sciences of Andalusia, Spanish National Research Council (ICMAN-CSIC), Puerto Real, Spain; Spanish Institute of Oceanography, C.O. de Cádiz (IEO-CSIC), 11006 Cadiz, Spain
| | - María Pilar Yeste
- Department of Material Science, Metallurgical Engineering and Inorganic Chemistry, Institute of Research on Electron Microscopy and Materials (IMEYMAT), Faculty of Sciences, University of Cadiz, 11510 Puerto Real, Cádiz, Spain
| | - Fernando Ramos
- Spanish Institute of Oceanography, C.O. de Cádiz (IEO-CSIC), 11006 Cadiz, Spain
| | - Enrique González-Ortegón
- Institute of Marine Sciences of Andalusia, Spanish National Research Council (ICMAN-CSIC), Puerto Real, Spain.
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2
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Muñoz-Lechuga R, Lino PG, González-Ortegón E. Interspecific, ontogenetic and temporal variations in stable isotopes of small tuna species in the northeast Atlantic Ocean. Isotopes Environ Health Stud 2024; 60:13-31. [PMID: 38127307 DOI: 10.1080/10256016.2023.2289956] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 10/16/2023] [Indexed: 12/23/2023]
Abstract
In order to study the trophic level of small tuna species and their contribution to the carbon flow in pelagic food webs, an analysis of carbon and nitrogen stable isotopes was carried out. The investigation was focused on four small tuna species (Auxis rochei, Auxis thazard, Euthynnus alletteratus and Sarda sarda) commonly harvested in the northeast Atlantic Ocean. The isotope analysis showed how the results for S. sarda are different from the rest of the species analysed, with a higher trophic level, similar to other major tuna species. The greatest niche overlap in δ13C and δ15N occurs among A. rochei, A. thazard and E. alletteratus. Auxis rochei and E. alletteratus showed a size-dependent variability in δ15N, and in δ13C for S. sarda. The small tuna S. sarda exhibits the highest migration rates among various geographical areas in comparison to other small pelagic tunas, and the seasonal variability of isotope values in the area studied can be attributed to the incorporation of larger individuals with a higher lipid content. The results of this work provide new information on the ecological role played by small tuna in food webs, which is more complex and varied than currently thought. This knowledge is essential for a more effective management of fisheries.
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Affiliation(s)
- Rubén Muñoz-Lechuga
- Portuguese Institute for the Ocean and Atmosphere (IPMA), Olhão, Portugal
- Departamento de Biología, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Puerto Real, Spain
| | - Pedro G Lino
- Portuguese Institute for the Ocean and Atmosphere (IPMA), Olhão, Portugal
| | - Enrique González-Ortegón
- Instituto de Ciencias Marinas de Andalucía - Consejo Superior de Investigaciones Científicas (ICMAN-CSIC), Puerto Real, Spain
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3
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Kholssi R, Stefanova S, González-Ortegón E, Araújo CVM, Moreno-Garrido I. Population and functional changes in a multispecies co-culture of marine microalgae and cyanobacteria under a combination of different salinity and temperature levels. Mar Environ Res 2024; 193:106279. [PMID: 38016302 DOI: 10.1016/j.marenvres.2023.106279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/13/2023] [Accepted: 11/17/2023] [Indexed: 11/30/2023]
Abstract
Changes in the temperature or salinity of ocean waters can affect marine organisms at multiple trophic levels. Both environmental variables could have an impact on marine microalgae populations. Therefore, the effect of the combination of three levels of temperature (20, 24 and 28 °C), and three levels of salinity (33, 36, and 39 PSU) were evaluated on the growth of a multispecies community of five common species of phytoplankton: (one cyanobacteria, Synechococcus sp., and four microalgae, Chaetoceros gracilis, Amphidinium carterae, Pleurochrysis roscoffensis and Rhodomonas baltica). The co-culture was monitored by flow cytometry under controlled conditions in a 96 h study. The effect of both variables on dissolved oxygen concentrations was measured using the SDR SensorDish Reader system. The results demonstrated that Synechococcus sp., C. gracilis, and A. carterae displayed a high growth at the temperature of 28 °C combined with the lowest salinity assayed. However, salinity increases negatively affected the growth of P. roscoffensis and R. baltica. Decreased salinity combined with decreased temperature exhibited a higher net O2 production. The interaction of two environmental factors related to global change such as temperature and salinity can cause structural (community growth) and functional (net oxygen production) changes in a phytoplanktonic community.
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Affiliation(s)
- Rajaa Kholssi
- Composting Research Group, Faculty of Sciences, University of Burgos, Burgos, Spain; Institute of Marine Sciences of Andalusia (ICMAN-CSIC), Campus Río San Pedro, 11510 Puerto Real, Cádiz, Spain
| | - Sara Stefanova
- Institute of Marine Sciences of Andalusia (ICMAN-CSIC), Campus Río San Pedro, 11510 Puerto Real, Cádiz, Spain
| | - Enrique González-Ortegón
- Institute of Marine Sciences of Andalusia (ICMAN-CSIC), Campus Río San Pedro, 11510 Puerto Real, Cádiz, Spain
| | - Cristiano V M Araújo
- Institute of Marine Sciences of Andalusia (ICMAN-CSIC), Campus Río San Pedro, 11510 Puerto Real, Cádiz, Spain
| | - Ignacio Moreno-Garrido
- Institute of Marine Sciences of Andalusia (ICMAN-CSIC), Campus Río San Pedro, 11510 Puerto Real, Cádiz, Spain.
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González-Ortegón E, de Carvalho-Souza GF, Vilas C, Baldó F, Cuesta JA. Trends in the decapod crustacean community at the southernmost estuary of the Atlantic coast of Europe. Sci Rep 2023; 13:22857. [PMID: 38129632 PMCID: PMC10739957 DOI: 10.1038/s41598-023-50049-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2023] [Accepted: 12/14/2023] [Indexed: 12/23/2023] Open
Abstract
Climate change may enhance the establishment of introduced species, as well as the poleward shift in distribution of numerous species over decades. Long-term research and monitoring of an ecosystem at the southernmost point of the Atlantic coast of Europe should be an important priority in order to detect and understand trends in species composition and the related environmental changes. The Guadalquivir estuary (South West Spain) is more likely to suffer the exacerbated effects of climate change due to its location in the Mediterranean-climate zone. The long-term data set between 1997 and 2006 has allowed us to analyse the variability of the natural and anthropogenic stressors. The mean interannual dissimilarity of the estuarine fauna (Bray-Curtis dissimilarity index) has showed important differences throughout the years, and the species that most contributed to these differences were the exotic species capable of completing their life cycles. This long-term monitoring of the estuarine community has allowed us to anticipate future events and ecological risk assessment in European waters.
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Affiliation(s)
- Enrique González-Ortegón
- Institute of Marine Sciences of Andalusia, Spanish National Research Council (ICMAN-CSIC), Puerto Real, Spain.
- Associate Research Unit "Blue Growth", Spanish National Research Council (CSIC) - Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Cadiz, Spain.
| | - Gustavo F de Carvalho-Souza
- Institute of Marine Sciences of Andalusia, Spanish National Research Council (ICMAN-CSIC), Puerto Real, Spain
- Universidad de Cádiz, Departamento de Física Aplicada, Instituto Universitario de Investigación Marina (INMAR), Campus de Excelencia Internacional/Global del Mar (CEI·MAR), 11519, Puerto Real, Cádiz, Spain
| | - Cesar Vilas
- Associate Research Unit "Blue Growth", Spanish National Research Council (CSIC) - Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Cadiz, Spain
- Instituto de Investigación y Formación Agraria Pesquera (IFAPA), Centro El Toruño, Camino Tiro de Pichón S/N, 11500, El Puerto de Santa María, Spain
| | - Francisco Baldó
- Spanish Institute of Oceanography, C.O. de Cádiz (IEO-CSIC), 11006, Cadiz, Spain
| | - Jose A Cuesta
- Institute of Marine Sciences of Andalusia, Spanish National Research Council (ICMAN-CSIC), Puerto Real, Spain
- Associate Research Unit "Blue Growth", Spanish National Research Council (CSIC) - Andalusian Institute of Agricultural and Fisheries Research and Training (IFAPA), Cadiz, Spain
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Sánchez-Guerrero-Hernández MJ, González-Fernández D, Sendra M, Ramos F, Yeste MP, González-Ortegón E. Contamination from microplastics and other anthropogenic particles in the digestive tracts of the commercial species Engraulis encrasicolus and Sardina pilchardus. Sci Total Environ 2023; 860:160451. [PMID: 36442631 DOI: 10.1016/j.scitotenv.2022.160451] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 11/13/2022] [Accepted: 11/20/2022] [Indexed: 06/16/2023]
Abstract
Fragments of microplastics (<5 mm) found in commercial species of fish, crustaceans, and bivalves, are an issue of global concern. The bioaccumulation of microplastics and other anthropogenic particles in different levels of the food web may provoke unwanted impacts on marine ecosystems and cause pernicious effects on human health. Here, we study the presence of anthropogenic particles and the fraction of microplastics in the target organs of two representative commercial fish species in Spain; the European anchovy (Engraulis encrasicolus) and the European pilchard (Sardina pilchardus). The individuals were sampled along the continental shelf of the Gulf of Cádiz, from the Bay of Cádiz to Cape Santa Maria. The isolation of the microplastics (MPs) was carried out with a complete alkaline-oxidant organic digestion (KOH-H2O2) of the digestive tract, including both the contents ingested and the muscle tissues. Anthropogenic particles were found in all individuals of both species with an average of 8.94 ± 5.11 items·ind-1. Fibres made up 93 % of the items while fragments and films were represented by the remaining 7 %. The average size of the anthropogenic particles was 0.89 ± 0.82 mm. In addition to the fragment and film particles identified as microplastics, 29 % of the fibres were estimated to be microplastics by Fourier-transform infrared spectroscopy (FTIR) analysis. The main polymer found in both species was nylon. No significant correlation was found between the abundance and size of anthropogenic particles ingested and individual size or other body variables. The analysis of similarities (ANOSIM) and the distanced-based multiple linear regression model showed a high homogeneity in anthropogenic particle contamination in both species throughout the study area along the continental shelf of the Gulf of Cádiz.
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Affiliation(s)
| | - Daniel González-Fernández
- Department of Biology, University Marine Research Institute INMAR, University of Cádiz and European University of the Seas, Puerto Real, Spain
| | - Marta Sendra
- Department of Biotechnology and Food Science, Faculty of Sciences, University of Burgos, Plaza Misael Bañuelos, 09001 Burgos, Spain; International Research Center in Critical Raw Materials-ICCRAM, Universidad de Burgos, Spain
| | - Fernando Ramos
- Spanish Institute of Oceanography, C.O. de Cádiz (IEO-CSIC), 11006 Cádiz, Spain
| | - María Pilar Yeste
- Department of Material Science, Metallurgical Engineering and Inorganic Chemistry, Institute of Research on Electron Microscopy and Materials (IMEYMAT), Faculty of Sciences, University of Cádiz, 11510 Puerto Real, Cádiz, Spain
| | - Enrique González-Ortegón
- Institute of Marine Sciences of Andalusia, Spanish National Research Council (ICMAN-CSIC), Puerto Real, Spain.
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Redondo-López S, González-Ortegón E, Mena F, Araújo CVM. Dissimilar behavioral and spatial avoidance responses by shrimps from tropical and temperate environments exposed to copper. Environ Sci Pollut Res Int 2023; 30:28023-28034. [PMID: 36385343 DOI: 10.1007/s11356-022-23825-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2022] [Accepted: 10/21/2022] [Indexed: 06/16/2023]
Abstract
Behavioral changes associated with exposure to pollutants represent the earliest response for organisms confronted by perceivable chemical signals. This study was carried out with the objective of evaluating behavioral responses associated with different scenarios of exposure to pollutants (non-forced vs forced) in two shrimp species (Penaeus vannamei and Palaemon varians), representative of different latitudes and using copper as a model contaminant. The effects on locomotion were evaluated by exposing the shrimps to a range of copper concentrations (0, 0.5, 5, 50, and 250 µg/L) in the forced scenario. After exposure, the movement patterns for each shrimp were recorded and used to estimate changes in the shrimps' locomotion. For the non-forced scenario, the avoidance response was assessed by placing shrimps in a multi-compartment system where they were able to move freely along a gradient of copper (0, 0.5, 5, 50, and 250 µg/L). In terms of locomotion, an opposite trend was observed between the species: movements were significantly reduced in P. varians with concentrations above 50 µg/L, while hyperactivity was observed for P. vannamei. When exposed to a gradient of copper in the multi-compartment system, both species significantly avoided the highest concentrations of copper, although the repellence of copper was stronger for P. vannamei. In summary, both species of shrimps were able to recognize and avoid copper; however, in terms of locomotion, they showed an opposite behavioral reaction. These results show that a contamination event can have different behavioral outcomes depending on the species and complementing forced and non-forced exposure with species-specific information can be helpful to characterize and predict the effects of contaminants at higher biological levels.
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Affiliation(s)
- Sergei Redondo-López
- Instituto Regional de Estudios en Sustancias Tóxicas (IRET), Universidad Nacional, 86-3000, Heredia, Costa Rica.
| | - Enrique González-Ortegón
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), Puerto Real, 11510, Cádiz, Spain
| | - Freylan Mena
- Instituto Regional de Estudios en Sustancias Tóxicas (IRET), Universidad Nacional, 86-3000, Heredia, Costa Rica
| | - Cristiano V M Araújo
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), Puerto Real, 11510, Cádiz, Spain
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González-Ortegón E, Sendra M, Sparaventi E, F Sánchez Leal R, de Los Ríos I, Baldó F, González-Fernández D, Yeste MP. Coastal gradients of small microplastics and associated pollutants influenced by estuarine sources. Mar Pollut Bull 2022; 174:113292. [PMID: 35090277 DOI: 10.1016/j.marpolbul.2021.113292] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2021] [Revised: 11/25/2021] [Accepted: 12/20/2021] [Indexed: 06/14/2023]
Abstract
Small microplastics (SMPs) in the gulf of Cadiz was sampled at 5 m depth by pumping it through the ship's pipe system and filtered through a 45 μm mesh size net. Our study reveals that higher densities have been found (130 mg·m-3) compared to other regions worldwide and these densities decreased from the coastline to the outer stations, showing a general coastal gradient influenced by estuarine outflows. SMPs with a size range between 45 and 193 μm were predominant and most of them composed by polyethylene and polypropylene. The metals associated with the MPs were mainly Na (21.1%), K (11.3%), Fe (8.5%), Ca (2.1%), Cr (1.8%), Zr (13.3%) and Hf (0.7%). The high proportion of Zr compared to Fe, which is different from what can be found in the environment, suggests that this metal is intrinsic to the materials used in catalytic processes during plastic production.
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Affiliation(s)
| | - Marta Sendra
- Instituto de Investigaciones Marinas (CSIC), Vigo, Spain; CBET Research Group, Dept. Zoology and Animal Cell Biology, Faculty of Science and Technology and Research Centre for Experimental Marine Biology and Biotechnology, PiE, University of the Basque Country UPV/EHU, Basque Country, Spain
| | | | - Ricardo F Sánchez Leal
- Centro Oceanográfico de Cádiz, Instituto Español de Oceanografía (IEO-CSIC), Cádiz, Spain
| | - Isaac de Los Ríos
- Dpto. de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, University of Cádiz, E-11510 Puerto Real (Cádiz), Spain
| | - Francisco Baldó
- Centro Oceanográfico de Cádiz, Instituto Español de Oceanografía (IEO-CSIC), Cádiz, Spain
| | - Daniel González-Fernández
- Departamento de Biología, Instituto Universitario de Investigación Marina, University of Cádiz and European University of the Seas, Puerto Real, Spain
| | - María Pilar Yeste
- Dpto. de Ciencia de los Materiales e Ingeniería Metalúrgica y Química Inorgánica, University of Cádiz, E-11510 Puerto Real (Cádiz), Spain
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González-Ortegón E, Perez-Miguel M, Navas JI, Drake P, Cuesta JA. Isotopic niche provides an insight into the ecology of a symbiont during its geographic expansion. Curr Zool 2021; 68:185-197. [PMID: 35355952 PMCID: PMC8962723 DOI: 10.1093/cz/zoab013] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/13/2021] [Indexed: 02/07/2023] Open
Abstract
The study of the recent colonization of a symbiont and its interaction with host communities in new locations is an opportunity to understand how they interact. The use of isotopic ratios in trophic ecology can provide measurements of a species’ isotopic niche, as well as knowledge about how the isotopic niches between symbiont and host species overlap. Stable isotope measurements were used to assess the sources of carbon assimilated by the host species (the bivalves Mytilus galloprovincialis and Scrobicularia plana) and their associated symbiont pea crab Afropinnotheres monodi, which occurs within these bivalves’ mantle cavities. The mixing model estimates suggest that all of them assimilate carbon from similar sources, particularly from pseudofaeces and particulate organic matter in this symbiotic system based on filter feeding. The symbiotic species occupy comparable trophic levels and its association seems to be commensal or parasitic depending on the duration of such association. The pea crab A. monodi reflects a sex-specific diet, where males are more generalist than the soft females because the latter’s habitat is restricted to the host bivalve. The high isotopic overlap between soft females and M. galloprovincialis may reflect a good commensal relationship with the host.
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Affiliation(s)
- Enrique González-Ortegón
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Rio San Pedro, Avda. República Saharaui, 2, 11519, Cádiz, Puerto Real, Spain
- Unidad Asociada Crecimiento Azul CSIC-IFAPA, El Puerto de Santa María Spain, Spain
| | - Marta Perez-Miguel
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Rio San Pedro, Avda. República Saharaui, 2, 11519, Cádiz, Puerto Real, Spain
- Unidad Asociada Crecimiento Azul CSIC-IFAPA, El Puerto de Santa María Spain, Spain
| | - Jose I Navas
- Unidad Asociada Crecimiento Azul CSIC-IFAPA, El Puerto de Santa María Spain, Spain
- Instituto de Investigación y Formación Agraria y Pesquera, IFAPA – Centro Agua del Pino, Ctra. El Rompido-Punta Umbría, km 3.8, 21459 El Rompido, Huelva, Spain
| | - Pilar Drake
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Rio San Pedro, Avda. República Saharaui, 2, 11519, Cádiz, Puerto Real, Spain
- Unidad Asociada Crecimiento Azul CSIC-IFAPA, El Puerto de Santa María Spain, Spain
| | - Jose A Cuesta
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Rio San Pedro, Avda. República Saharaui, 2, 11519, Cádiz, Puerto Real, Spain
- Unidad Asociada Crecimiento Azul CSIC-IFAPA, El Puerto de Santa María Spain, Spain
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Mena F, González-Ortegón E, Solano K, Araújo CVM. The effect of the insecticide diazinon on the osmoregulation and the avoidance response of the white leg shrimp (Penaeus vannamei) is salinity dependent. Ecotoxicol Environ Saf 2020; 206:111364. [PMID: 32980654 DOI: 10.1016/j.ecoenv.2020.111364] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Revised: 09/09/2020] [Accepted: 09/14/2020] [Indexed: 06/11/2023]
Abstract
Diazinon is one of the insecticides that represent a high risk for Costa Rican estuarine environments due to its widespread use in pineapple plantations. In estuaries, organisms are frequently submitted to stress caused by natural factors (e.g., continuous changes in salinity levels) and, additionally, to stress due to contamination. Therefore, the driving question of this study was: will organisms be more susceptible to suffer the deleterious effects caused by diazinon because of the stress resulting from the salinity changes? The estuarine shrimp Penaeus vannamei was used as the model organism and two responses were measured: osmoregulation (the physiological effect after a forced and continuous 24 h-exposure) and avoidance [the behavioural effect after a short (3 h) non-forced, multi-compartmented exposure]. Juveniles were exposed to diazinon (0.1, 1, 10 and 100 μg/L) at three different salinities (10, 20 and 30). Disruption in the capacity to regulate the haemolymph osmotic pressure was observed at a salinity of 30 in individuals exposed to diazinon and methanol (used as vehicle). At that salinity, the ability of shrimps to detect and avoid the highest diazinon concentrations was impaired. P. vannamei juveniles inhabit environments with a high variation in salinity, but with an optimum osmotic point close to a salinity of 20; therefore, the higher the salinity, the greater the vulnerability of shrimps to the effects of diazinon. From an ecological point of view, this combined effect of salinity and contamination might also limit the spatial distribution of the organisms.
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Affiliation(s)
- Freylan Mena
- Instituto Regional de Estudios en Sustancias Tóxicas (IRET), Universidad Nacional, 86-3000, Heredia, Costa Rica.
| | - Enrique González-Ortegón
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalucía (CSIC), 11510, Puerto Real, Cádiz, Spain
| | - Karla Solano
- Instituto Regional de Estudios en Sustancias Tóxicas (IRET), Universidad Nacional, 86-3000, Heredia, Costa Rica
| | - Cristiano V M Araújo
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalucía (CSIC), 11510, Puerto Real, Cádiz, Spain
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10
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Araújo CVM, Laissaoui A, Silva DCVR, Ramos-Rodríguez E, González-Ortegón E, Espíndola ELG, Baldó F, Mena F, Parra G, Blasco J, López-Doval J, Sendra M, Banni M, Islam MA, Moreno-Garrido I. Not Only Toxic but Repellent: What Can Organisms' Responses Tell Us about Contamination and What Are the Ecological Consequences When They Flee from an Environment? Toxics 2020; 8:E118. [PMID: 33322739 PMCID: PMC7768353 DOI: 10.3390/toxics8040118] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/21/2020] [Revised: 12/02/2020] [Accepted: 12/10/2020] [Indexed: 01/04/2023]
Abstract
The ability of aquatic organisms to sense the surrounding environment chemically and interpret such signals correctly is crucial for their ecological niche and survival. Although it is an oversimplification of the ecological interactions, we could consider that a significant part of the decisions taken by organisms are, to some extent, chemically driven. Accordingly, chemical contamination might interfere in the way organisms behave and interact with the environment. Just as any environmental factor, contamination can make a habitat less attractive or even unsuitable to accommodate life, conditioning to some degree the decision of organisms to stay in, or move from, an ecosystem. If we consider that contamination is not always spatially homogeneous and that many organisms can avoid it, the ability of contaminants to repel organisms should also be of concern. Thus, in this critical review, we have discussed the dual role of contamination: toxicity (disruption of the physiological and behavioral homeostasis) vs. repellency (contamination-driven changes in spatial distribution/habitat selection). The discussion is centered on methodologies (forced exposure against non-forced multi-compartmented exposure systems) and conceptual improvements (individual stress due to the toxic effects caused by a continuous exposure against contamination-driven spatial distribution). Finally, we propose an approach in which Stress and Landscape Ecology could be integrated with each other to improve our understanding of the threat contaminants represent to aquatic ecosystems.
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Affiliation(s)
- Cristiano V. M. Araújo
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), Puerto Real, 11519 Cadiz, Spain; (E.G.-O.); (J.B.); (I.M.-G.)
| | - Abdelmourhit Laissaoui
- National Centre for Nuclear Energy, Science and Technology, BP 1381, Rabat RP 10001, Morocco;
| | - Daniel C. V. R. Silva
- Institute of Xingu Studies, Federal University of Southern and Southeastern Pará, São Félix do Xingu, PA 68507-590, Brazil;
| | - Eloisa Ramos-Rodríguez
- Department of Ecology and Institute of Water Research, University of Granada, 18010 Granada, Spain;
| | - Enrique González-Ortegón
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), Puerto Real, 11519 Cadiz, Spain; (E.G.-O.); (J.B.); (I.M.-G.)
| | - Evaldo L. G. Espíndola
- NEEA/CRHEA/SHS, São Carlos Engineering School, University of São Paulo, Av. Trabalhador São Carlense, 400, São Carlos, SP 13.560-970, Brazil;
| | - Francisco Baldó
- Instituto Español de Oceanografía (IEO), Centro Oceanográfico de Cádiz, 11006 Cádiz, Spain;
| | - Freylan Mena
- Regional Institute for Studies on Toxic Substances (IRET), Universidad Nacional, 86-3000 Heredia, Costa Rica;
| | - Gema Parra
- Animal Biology, Plant Biology and Ecology Department, University of Jaén, 23071 Jaén, Spain;
| | - Julián Blasco
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), Puerto Real, 11519 Cadiz, Spain; (E.G.-O.); (J.B.); (I.M.-G.)
| | - Julio López-Doval
- Catalan Institute for Water Research (ICRA), Scientific and Technological Park of the University of Girona, H2O Building, C/Emili Grahit, 101, 17003 Girona, Spain;
- Faculty of Sciences, University of Girona, Campus de Montilivi, 17003 Girona, Spain
| | - Marta Sendra
- Institute of Marine Research (IIM), National Research Council (CSIC), Eduardo Cabello 6, 36208 Vigo, Spain;
| | - Mohamed Banni
- Laboratory of Biochemistry and Environmental Toxicology, Higher Institute of Agronomy, 1349-017 Chott-Mariem, Tunisia;
| | - Mohammed Ariful Islam
- Department of Aquatic Resource Management, Faculty of Fisheries, Sylhet Agricultural University, Sylhet 3100, Bangladesh;
| | - Ignacio Moreno-Garrido
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), Puerto Real, 11519 Cadiz, Spain; (E.G.-O.); (J.B.); (I.M.-G.)
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11
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González-Ortegón E, Jenkins S, Galil BS, Drake P, Cuesta JA. Accelerated invasion of decapod crustaceans in the southernmost point of the Atlantic coast of Europe: A non-natives’ hot spot? Biol Invasions 2020. [DOI: 10.1007/s10530-020-02345-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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12
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González-Castellano I, Pons J, González-Ortegón E, Martínez-Lage A. Mitogenome phylogenetics in the genus Palaemon (Crustacea: Decapoda) sheds light on species crypticism in the rockpool shrimp P. elegans. PLoS One 2020; 15:e0237037. [PMID: 32810189 PMCID: PMC7444591 DOI: 10.1371/journal.pone.0237037] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Accepted: 07/17/2020] [Indexed: 12/24/2022] Open
Abstract
The genus Palaemon comprises worldwide marine and freshwater shrimps and prawns, and some of them are ecologically or commercially important species. Palaemon is not currently a monophyletic group, so phylogenetics and systematics are constantly changing. Species crypticism has been pointed out in several Palaemon species, being the clearest evidence in the European rockpool shrimp P. elegans. Here we sequenced and described seven European Palaemon mitochondrial genomes. The mitochondrial protein-coding genes were used, along with those of three other Palaemon species, to perform mitogenome phylogenetic analyses to clarify the evolutionary relationships within the genus, and particularly to shed light on the cryptic species found within P. elegans. The Messinian Salinity Crisis (5.3-5.9 Ma, late Miocene) was proposed to be the origin of this cryptic species and it was used as aged constraint for calibration analysis. We provide the largest and the first time-calibrated mitogenome phylogeny of the genus Palaemon and mitogenome substitution rate was estimated (1.59% per million years) in Decapoda for the first time. Our results highlighted the need for future systematics changes in Palaemon and crypticism in P. elegans was confirmed. Mitochondrial genome and cox1 (1.41%) substitution rate estimates matched those published elsewhere, arguing that the Messinian Salinity Crisis was a plausible event driving the split between P. elegans and its cryptic species. Molecular dating suggested that Pleistocene glaciations were likely involved in the differentiation between the Atlantic and Mediterranean populations of P. elegans. On the contrary, the divergence between the Atlantic and Mediterranean populations of the common littoral shrimp P. serratus was greater and dated to be much older (4.5-12.3 Ma, Plio-Miocene), so we considered that they could represent two separated species. Therefore, species crypticism in the genus Palaemon seems to be a common phenomenon.
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Affiliation(s)
- Inés González-Castellano
- Departamento de Biología and Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, A Coruña, Spain
| | - Joan Pons
- Instituto Mediterráneo de Estudios Avanzados (IMEDEA), Consejo Superior de Investigaciones Científicas (CSIC) and Universitat de les Illes Balears, Esporles, Spain
| | - Enrique González-Ortegón
- Instituto de Ciencias Marinas de Andalucía (ICMAN), Consejo Superior de Investigaciones Científicas (CSIC), Puerto Real, Spain
| | - Andrés Martínez-Lage
- Departamento de Biología and Centro de Investigaciones Científicas Avanzadas (CICA), Universidade da Coruña, A Coruña, Spain
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13
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Laiz I, Plecha S, Teles-Machado A, González-Ortegón E, Sánchez-Quiles D, Cobelo-García A, Roque D, Peliz A, Sánchez-Leal RF, Tovar-Sánchez A. The role of the Gulf of Cadiz circulation in the redistribution of trace metals between the Atlantic Ocean and the Mediterranean Sea. Sci Total Environ 2020; 719:134964. [PMID: 31837879 DOI: 10.1016/j.scitotenv.2019.134964] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/26/2019] [Revised: 10/11/2019] [Accepted: 10/11/2019] [Indexed: 06/10/2023]
Abstract
The GoC shelf waters present much higher concentrations of dissolved Cu, Cd, and Zn than other coastal areas, constituting an important source of these elements onto its neighbouring basins, i.e., the Atlantic Ocean and the Mediterranean Sea. In this study we assessed the role of the GoC surface currents in the trace metals transport. For this purpose, ten dissolved (<0.22 µm) trace metals were sampled (Ag, Cd, Co, Cu, Fe, Mo, Ni, Pb, Zn, V) along the GoC continental shelf, and their spatial and temporal distribution was interpreted according to the surface circulation. Results show that the complex surface circulation over the shelf confines the metals concentration mainly along the inner shelf and determines their transport patterns: under southeastward currents, Cd, Co, Cu, Ni, and Pb are transported toward the Mediterranean Sea; under northwestward countercurrents, Cd, Co, Cu, Fe, Ni, and Zn are transported toward the southern and, occasionally, the western Portuguese shelf; under variable currents, Ag, Cd, Co, Cu, Fe, Pb, and Zn tend to accumulate near their source. Considering that some of these metals have not been analysed before in this region (Ag, Mo, V), or that the spatial distribution of certain metals (Ag, Fe, Mo, Pb, V) has not been interpreted in terms of the ocean circulation, this work could be considered as a baseline study for future comparisons.
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Affiliation(s)
- I Laiz
- Department of Applied Physics, Instituto Universitario de Investigación Marina (INMAR), University of Cadiz, Campus de Excelencia Internacional/Global del Mar (CEI·MAR), E-11510 Puerto Real, Cadiz, Spain.
| | - S Plecha
- Instituto Dom Luiz, Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal.
| | - A Teles-Machado
- Instituto Dom Luiz, Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal.
| | - E González-Ortegón
- Instituto de Ciencias Marinas de Andalucía ICMAN-CSIC, E-11510 Puerto Real, Cadiz, Spain; Campus de Excelencia Internacional del Mar (CEIMAR), Spain.
| | - D Sánchez-Quiles
- Instituto de Ciencias Marinas de Andalucía ICMAN-CSIC, E-11510 Puerto Real, Cadiz, Spain.
| | - A Cobelo-García
- Instituto de Investigaciones Marinas IIM-CSIC, 36208 Vigo, Pontevedra, Spain.
| | - D Roque
- Instituto de Ciencias Marinas de Andalucía ICMAN-CSIC, E-11510 Puerto Real, Cadiz, Spain.
| | - A Peliz
- Instituto Dom Luiz, Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal.
| | - R F Sánchez-Leal
- Spanish Institute of Oceanography, Cadiz Oceanographic Centre, 11006 Cadiz, Spain.
| | - A Tovar-Sánchez
- Instituto de Ciencias Marinas de Andalucía ICMAN-CSIC, E-11510 Puerto Real, Cadiz, Spain.
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Tovar-Sánchez A, González-Ortegón E, Duarte CM. Trace metal partitioning in the top meter of the ocean. Sci Total Environ 2019; 652:907-914. [PMID: 30380497 DOI: 10.1016/j.scitotenv.2018.10.315] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 10/22/2018] [Accepted: 10/23/2018] [Indexed: 06/08/2023]
Abstract
Understanding the biogeochemical cycles and distribution of trace elements in the marine environment is one of the main challenges in chemical oceanography. We describe herein the trace metal composition of the uppermost surface ocean of various oceanographic regions (Arctic and Southern Oceans, subtropical Atlantic Ocean, and Mediterranean Sea). Our results show that trace metals in the top meter of the ocean are found in two clearly differentiated layers according to metal abundance and stoichiometry, namely the surface microlayer (SML) and its underlying subsurface water (SSW). Although metal concentrations in the subsurface dissolved fractions vary regionally and globally, it shows a singular metal stoichiometric signature. This work emphasizes the need to study of the SML as unique compartment to improve our understanding of the biogeochemical cycle of trace metals in the surface ocean, especially for metals, such as Pb, Fe and Cu, which are abundant in the SML.
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Affiliation(s)
- Antonio Tovar-Sánchez
- ICMAN-Instituto de Ciencias Marinas de Andalucía (CSIC), Campus Universitario Río San Pedro, 11510, Puerto Real, Cádiz, Spain.
| | - Enrique González-Ortegón
- ICMAN-Instituto de Ciencias Marinas de Andalucía (CSIC), Campus Universitario Río San Pedro, 11510, Puerto Real, Cádiz, Spain; CEI-MAR International Campus of Excellence of the Sea, Campus Universitario Río San Pedro, 11510, Puerto Real, Cádiz, Spain
| | - Carlos M Duarte
- King Abdullah University of Science and Technology (KAUST), Red Sea Research Center (RSRC), Thuwal 23955-6900, Saudi Arabia
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15
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Araújo CVM, González-Ortegón E, Pintado-Herrera MG, Biel-Maeso M, Lara-Martín PA, Tovar-Sánchez A, Blasco J. Disturbance of ecological habitat distribution driven by a chemical barrier of domestic and agricultural discharges: An experimental approach to test habitat fragmentation. Sci Total Environ 2019; 651:2820-2829. [PMID: 30463135 DOI: 10.1016/j.scitotenv.2018.10.200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/07/2018] [Revised: 10/12/2018] [Accepted: 10/14/2018] [Indexed: 06/09/2023]
Abstract
Contamination is an important factor for determining the pattern of habitat selection by organisms. Since many organisms are able to move from contaminated to more favorable habitats, we aimed to: (i) verify if the contamination along the river Guadalete (Spain) could generate a chemical barrier, restricting the displacement of freshwater shrimps (Atyaephyra desmarestii) and (ii) discriminate the role of the contaminants concerning the preference response by the shrimps. A. desmarestii was experimentally tested in a multi-compartmented, non-forced exposure system, simulating the spatial arrangement of the samples just like their distribution in the environment. Water and sediment samples were chemically characterized by analyses of 98 chemical compounds and 19 inorganic elements. Shrimps selected the less contaminated water and sediment samples, with two marked preference patterns: (i) upstream displacement avoiding the sample located at the point of pollutant discharges and those samples downstream from this point and (ii) fragmentation of the population with spatial isolation of the upstream and downstream populations. The preference was related to the avoidance of artificial sweeteners, flame retardants, fragrances, PAHs, PCBs, pesticides, UV filters and some inorganic elements. The threat of contamination was related to its potential to isolate populations due to the chemical fragmentation of their habitat.
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Affiliation(s)
- Cristiano V M Araújo
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), 11510 Puerto Real, Cadiz, Spain.
| | - Enrique González-Ortegón
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), 11510 Puerto Real, Cadiz, Spain; CEIMAR International Campus of Excellence of the Sea, Spain
| | - Marina G Pintado-Herrera
- Department of Physical Chemistry, Faculty of Marine and Environmental Sciences, CEI-MAR, University of Cadiz, 11510 Puerto Real, Spain
| | - Miriam Biel-Maeso
- Department of Physical Chemistry, Faculty of Marine and Environmental Sciences, CEI-MAR, University of Cadiz, 11510 Puerto Real, Spain
| | - Pablo A Lara-Martín
- Department of Physical Chemistry, Faculty of Marine and Environmental Sciences, CEI-MAR, University of Cadiz, 11510 Puerto Real, Spain
| | - Antonio Tovar-Sánchez
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), 11510 Puerto Real, Cadiz, Spain
| | - Julián Blasco
- Department of Ecology and Coastal Management, Institute of Marine Sciences of Andalusia (CSIC), 11510 Puerto Real, Cadiz, Spain
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16
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González-Ortegón E, Laiz I, Sánchez-Quiles D, Cobelo-Garcia A, Tovar-Sánchez A. Trace metal characterization and fluxes from the Guadiana, Tinto-Odiel and Guadalquivir estuaries to the Gulf of Cadiz. Sci Total Environ 2019; 650:2454-2466. [PMID: 30293001 DOI: 10.1016/j.scitotenv.2018.09.290] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 09/21/2018] [Accepted: 09/22/2018] [Indexed: 06/08/2023]
Abstract
Metals transported into the coastal zone by the South Iberian rivers are key to understand the biogeochemical cycles and distribution of trace elements in the Gulf of Cadiz (GoC hereinafter) and the exchange with the Mediterranean Sea. Previous studies carried out in the 80s have suggested that metal enrichment in the Alboran Sea (Western Mediterranean) is related with fluvial inputs from acid mine drainage from the Tinto and Odiel rivers. The present study evaluates the contribution of dissolved trace metal concentrations (i.e. Cd, Co, Cu, Fe, Mo, Ni, Pb, V, Zn) from the three main rivers discharging into the GoC (i.e. Guadiana, Tinto-Odiel and Guadalquivir rivers). Our results show that the metal composition of water discharged from each river is impacted by the activities developed in the course of the rivers, which clearly influence the GoC coastal surface waters composition. Metal fluxes from the Guadalquivir river are quantitatively higher than those from the Tinto-Odiel (e.g. up to 73% and 19% higher for Ni and Cu, respectively). Although the metal concentrations spatial distributions in the GoC are dominated by the circulation pattern between the Atlantic and the Mediterranean Sea, the concentrations within the GoC continental shelf could be explained by a greater contribution from the Guadalquivir estuary (e.g. 80.5%, 54.6%, 56.5% and 56.6% for Ni, Cu, Mo, and V respectively).
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Affiliation(s)
- E González-Ortegón
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain; Campus de Excelencia Internacional del Mar (CEIMAR), Spain.
| | - I Laiz
- Dept. of Applied Physics, University of Cadiz, Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain
| | - D Sánchez-Quiles
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain
| | - A Cobelo-Garcia
- Instituto de Investigaciones Marinas (IIM-CSIC), Vigo, Spain
| | - A Tovar-Sánchez
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain
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17
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González-Ortegón E, Amaral V, Baldó F, Sánchez-Leal RF, Bellanco MJ, Jiménez MP, Forja J, Vilas C, Tovar-Sanchez A. Sources and coastal distribution of dissolved organic matter in the Gulf of Cadiz. Sci Total Environ 2018; 630:1583-1595. [PMID: 29554775 DOI: 10.1016/j.scitotenv.2018.02.293] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Revised: 02/23/2018] [Accepted: 02/25/2018] [Indexed: 06/08/2023]
Abstract
Dissolved organic matter (DOM) is a major component of the organic matter pool, playing a key role in the global ocean functioning. However, studies on DOM in waters of many ocean regions, such as the Gulf of Cadiz (GoC), are poorly known. Advanced aquatic sensors enable autonomous for long-term deployments in situ collection of high frequency DOM data using fluorescent dissolved organic matter (FDOM) as a proxy. The present study evaluates the relevance of FDOM, the estuarine influence and the environmental factors that determine its spatial distribution in the GoC. Our results suggest that the GoC water mass, under the estuarine influence of three main rivers, is receiving large amounts of DOM transported mainly by Guadalquivir and Guadiana rivers and much less from Tinto-Odiel. Salinity is the main factor explaining the FDOM variability within the Guadalquivir and Guadiana rivers and in the inner shelf of the GoC. In the outer shelf of the GoC, plankton-produced DOM could explain the persistent spatial pattern of FDOM, playing an important role in the dynamics of FDOM from the North area of the GoC through the persistent low-salinity Eastern North Atlantic Central Water. The oceanographic dynamics and the spatial pattern of FDOM concentration in the continental shelf of the GoC suggest a net transport of FDOM through the GCC (Gulf of Cadiz Current) to the Mediterranean Sea.
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Affiliation(s)
- E González-Ortegón
- Instituto de Ciencias Marinas de Andalucía (CSIC), Campus Universitario Río San Pedro, 11519 Puerto Real, Cádiz, Spain; CEI-MAR International Campus of Excellence of the Sea, Spain.
| | - V Amaral
- Departamento de Química-Física, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Campus Río San Pedro s/n, Puerto Real, Cádiz 11510, Spain; Ecología Funcional de Sistemas Acuáticos, Centro Universitario Regional Este, Universidad de la República, Rocha, Uruguay
| | - F Baldó
- Instituto Español de Oceanografía, Centro Oceanográfico de Cádiz, Puerto Pesquero, Muelle de Levante s/n, 11006 Cádiz, Spain
| | - Ricardo F Sánchez-Leal
- Instituto Español de Oceanografía, Centro Oceanográfico de Cádiz, Puerto Pesquero, Muelle de Levante s/n, 11006 Cádiz, Spain
| | - María J Bellanco
- Instituto Español de Oceanografía, Centro Oceanográfico de Cádiz, Puerto Pesquero, Muelle de Levante s/n, 11006 Cádiz, Spain
| | - María P Jiménez
- Instituto Español de Oceanografía, Centro Oceanográfico de Cádiz, Puerto Pesquero, Muelle de Levante s/n, 11006 Cádiz, Spain
| | - J Forja
- Departamento de Química-Física, Facultad de Ciencias del Mar y Ambientales, Universidad de Cádiz, Campus Río San Pedro s/n, Puerto Real, Cádiz 11510, Spain
| | - César Vilas
- IFAPA Centro El Toruño, Camino Tiro de Pichón s/n, 11500 El Puerto de Santa María, Spain
| | - A Tovar-Sanchez
- Instituto de Ciencias Marinas de Andalucía (CSIC), Campus Universitario Río San Pedro, 11519 Puerto Real, Cádiz, Spain
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González-Ortegón E, Vay LL, Walton MEM, Giménez L. Maternal Trophic Status and Offpsring Phenotype in a Marine Invertebrate. Sci Rep 2018; 8:9618. [PMID: 29941878 PMCID: PMC6018471 DOI: 10.1038/s41598-018-27709-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Accepted: 05/27/2018] [Indexed: 11/17/2022] Open
Abstract
Offspring size variation in relation to maternal size and season is characteristic of a range of species living in seasonal environments. Little is known about the proximate mechanisms explaining the links between maternally driven variation in offspring phenotypes, for instance when mothers have different diets depending on their size or the season. Here, we use stable isotopes techniques to quantify size dependent and seasonal variations in diet in mothers of shrimp Palaemon serratus and explore possible links between maternal diet and phenotype of embryos and freshly hatched larvae. We found that larger females, which occur more frequently in winter, produce larvae with higher carbon and nitrogen content as well as higher percent carbon, than smaller mothers collected in winter. In addition, isotopic composition suggest that larger mothers collected in winter, were feeding at a higher trophic level, or on an enriched prey pool compared with smaller mothers collected in summer. Overall, there seems to be a strong association between offspring size and maternal diet, mediated by maternal size and/or season.
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Affiliation(s)
- Enrique González-Ortegón
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro, 11519, Puerto Real, Cádiz, Spain. .,School of Ocean Sciences, Bangor University, Menai Bridge, LL59 5AB, UK. .,CEI-MAR International Campus of Excellence of the Sea, Cádiz, Spain.
| | - Lewis Le Vay
- School of Ocean Sciences, Bangor University, Menai Bridge, LL59 5AB, UK
| | | | - Luis Giménez
- School of Ocean Sciences, Bangor University, Menai Bridge, LL59 5AB, UK
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Torrecilla Z, Martínez-Lage A, Perina A, González-Ortegón E, González-Tizón AM. Comparative cytogenetic analysis of marine Palaemon species reveals a X 1X 1X 2X 2/X 1X 2Y sex chromosome system in Palaemon elegans. Front Zool 2017; 14:47. [PMID: 29046707 PMCID: PMC5639736 DOI: 10.1186/s12983-017-0233-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2017] [Accepted: 10/02/2017] [Indexed: 12/01/2022] Open
Abstract
Background The maintenance of species and the promotion of speciation are closely related to chromosomal rearrangements throughout evolution. Decapoda represents the most species-rich order among crustaceans and, despite its ecological and economic importance, little is known about decapod karyology. We aim at cytogenetically characterizing two sympatric prawn species. Results Analysis of mitotic metaphases and meiotic diakinesis of the common prawn Palaemon serratus and the rockpool prawn P. elegans, revealed considerable differences between their karyotypes including chromosome numbers and sex determination systems. The cytogenetic data for P. serratus showed a diploid number of 56 and the putative absence of heteromorphic sex chromosomes. However, the diploid chromosome number in P. elegans was 90 for females and 89 for males. The karyotype of the females consisted of the three largest acrocentric pairs and 42 submetacentric and metacentric pairs, while the karyotype of the males comprised a clearly identifiable large metacentric chromosome and two acrocentric pairs as well as the smaller 42 pairs. These results highlight the presence of the X1X1X2X2/X1X2Y multiple sex chromosome system in P. elegans, which constitute the only sexual system for Decapoda reported cytogenetically using modern techniques. The origin of this sex chromosome system is discussed. We hypothesize that the chromosome evolution within the genus could involve several fusion events giving rise to a reduction on the chromosome number in P. serratus. In both species, the major ribosomal genes were located in two chromosome pairs and hybridization signals of the telomeric sequences (TTAGGG)n were visualized at the telomeres of all chromosomes. C-banding revealed that, when present, constitutive heterochromatin had a predominantly telomeric distribution and no centromeric constitutive heterochromatin was observed. Conclusions Although more comparative cytogenetic analyses are needed to clarify our hypotheses, the findings of this work indicate that the prawns of the genus Palaemon represent a promising model among Decapoda representatives to investigate the karyotype evolution and the patterns of sex chromosome differentiation.
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Affiliation(s)
- Zeltia Torrecilla
- Grupo de Investigación en Biología Evolutiva (GIBE), Centro de Investigaciones Científicas Avanzadas (CICA), Departamento de Biología, Facultad de Ciencias, Universidade da Coruña, Campus A Zapateira, 15071 A Coruña, Spain
| | - Andrés Martínez-Lage
- Grupo de Investigación en Biología Evolutiva (GIBE), Centro de Investigaciones Científicas Avanzadas (CICA), Departamento de Biología, Facultad de Ciencias, Universidade da Coruña, Campus A Zapateira, 15071 A Coruña, Spain
| | - Alejandra Perina
- Grupo de Investigación en Biología Evolutiva (GIBE), Centro de Investigaciones Científicas Avanzadas (CICA), Departamento de Biología, Facultad de Ciencias, Universidade da Coruña, Campus A Zapateira, 15071 A Coruña, Spain
| | - Enrique González-Ortegón
- Instituto de Ciencias Marinas de Andalucía (ICMAN, CSIC), Campus Universitario Río San Pedro, 11510 Puerto Real, Cádiz, Spain.,International Campus of Excellence of the Sea (CEI-MAR), Edificio Hospital Real, 11003 Cádiz, Spain
| | - Ana M González-Tizón
- Grupo de Investigación en Biología Evolutiva (GIBE), Centro de Investigaciones Científicas Avanzadas (CICA), Departamento de Biología, Facultad de Ciencias, Universidade da Coruña, Campus A Zapateira, 15071 A Coruña, Spain
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20
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Giménez J, Marçalo A, Ramírez F, Verborgh P, Gauffier P, Esteban R, Nicolau L, González-Ortegón E, Baldó F, Vilas C, Vingada J, G. Forero M, de Stephanis R. Diet of bottlenose dolphins (Tursiops truncatus) from the Gulf of Cadiz: Insights from stomach content and stable isotope analyses. PLoS One 2017; 12:e0184673. [PMID: 28898268 PMCID: PMC5595343 DOI: 10.1371/journal.pone.0184673] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2017] [Accepted: 08/28/2017] [Indexed: 12/01/2022] Open
Abstract
The ecological role of species can vary among populations depending on local and regional differences in diet. This is particularly true for top predators such as the bottlenose dolphin (Tursiops truncatus), which exhibits a highly varied diet throughout its distribution range. Local dietary assessments are therefore critical to fully understand the role of this species within marine ecosystems, as well as its interaction with important ecosystem services such as fisheries. Here, we combined stomach content analyses (SCA) and stable isotope analyses (SIA) to describe bottlenose dolphins diet in the Gulf of Cadiz (North Atlantic Ocean). Prey items identified using SCA included European conger (Conger conger) and European hake (Merluccius merluccius) as the most important ingested prey. However, mass-balance isotopic mixing model (MixSIAR), using δ13C and δ15N, indicated that the assimilated diet consisted mainly on Sparidae species (e.g. seabream, Diplodus annularis and D. bellottii, rubberlip grunt, Plectorhinchus mediterraneus, and common pandora, Pagellus erythrinus) and a mixture of other species including European hake, mackerels (Scomber colias, S. japonicus and S. scombrus), European conger, red bandfish (Cepola macrophthalma) and European pilchard (Sardina pilchardus). These contrasting results highlight differences in the temporal and taxonomic resolution of each approach, but also point to potential differences between ingested (SCA) and assimilated (SIA) diets. Both approaches provide different insights, e.g. determination of consumed fish biomass for the management of fish stocks (SCA) or identification of important assimilated prey species to the consumer (SIA).
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Affiliation(s)
- Joan Giménez
- Departamento de Biología de la Conservación, Estación Biológica de Doñana - Consejo Superior de Investigaciones Científicas (EBD-CSIC), Isla de la Cartuja, Sevilla, Spain
- * E-mail:
| | - Ana Marçalo
- Centre for Environmental and Marine Studies (CESAM), Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
- Centro de Biologia Molecular e Ambiental (CBMA) / Sociedade Portuguesa de Vida Selvagem (SPVS), Departamento de Biologia, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Francisco Ramírez
- Departament de Biologia Evolutiva, Ecologia i Ciències Ambientals, Universitat de Barcelona, Barcelona, Catalonia, Spain
| | - Philippe Verborgh
- Conservation, Information and Research on Cetaceans (CIRCE), Algeciras-Pelayo, Cádiz, Spain
| | - Pauline Gauffier
- Conservation, Information and Research on Cetaceans (CIRCE), Algeciras-Pelayo, Cádiz, Spain
| | - Ruth Esteban
- Conservation, Information and Research on Cetaceans (CIRCE), Algeciras-Pelayo, Cádiz, Spain
| | - Lídia Nicolau
- Centre for Environmental and Marine Studies (CESAM), Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
- Centro de Biologia Molecular e Ambiental (CBMA) / Sociedade Portuguesa de Vida Selvagem (SPVS), Departamento de Biologia, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Enrique González-Ortegón
- Instituto de Ciencias Marinas de Andalucía - Consejo Superior de Investigaciones Científicas (ICMAN-CSIC), Campus Universitario Río San Pedro, Puerto Real, Cádiz, Spain
| | - Francisco Baldó
- Instituto Español de Oceanografía (IEO), Centro Oceanográfico de Cádiz, Cádiz, Spain
| | - César Vilas
- Instituto de Investigación y Formación Agraria y Pesquera, Consejería de Agricultura, Pesca y Desarrollo Local – Junta de Andalucía – IFAPA Centro El Toruño, El Puerto de Santa María, Cádiz, Spain
| | - José Vingada
- Centre for Environmental and Marine Studies (CESAM), Universidade de Aveiro, Campus Universitário de Santiago, Aveiro, Portugal
- Centro de Biologia Molecular e Ambiental (CBMA) / Sociedade Portuguesa de Vida Selvagem (SPVS), Departamento de Biologia, Universidade do Minho, Campus de Gualtar, Braga, Portugal
| | - Manuela G. Forero
- Departamento de Biología de la Conservación, Estación Biológica de Doñana - Consejo Superior de Investigaciones Científicas (EBD-CSIC), Isla de la Cartuja, Sevilla, Spain
| | - Renaud de Stephanis
- Conservation, Information and Research on Cetaceans (CIRCE), Algeciras-Pelayo, Cádiz, Spain
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Nieto E, Hampel M, González-Ortegón E, Drake P, Blasco J. Influence of temperature on toxicity of single pharmaceuticals and mixtures, in the crustacean A. desmarestii. J Hazard Mater 2016; 313:159-169. [PMID: 27060865 DOI: 10.1016/j.jhazmat.2016.03.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/21/2015] [Revised: 03/17/2016] [Accepted: 03/22/2016] [Indexed: 06/05/2023]
Abstract
Lethal and sublethal responses of the shrimp Atyaephyra desmarestii exposed to three pharmaceutical compounds, Diclofenac (DF), Ibuprofen (IB) and Carbamazepine (CBZ), individually and in mixtures, were evaluated under two temperature scenarios. LC50 (96h) values were obtained individually at 20° and 25°C. At 25°C, mortality in binary and ternary mixtures is higher than at 20°C. The toxicity of the mixtures was predicted on the basis of individual mortality data using two toxicity models: Concentration addition (CA) and Independent action (IA). Our results showed that neither CA nor IA unequivocally predicted the observed toxicity of binary and ternary mixtures. For sublethal toxicity, selected endpoints were: ingestion rate, osmoregulatory capacity and respiration rate. Regarding osmoregulatory capacity, no significant differences were found. The highest ingestion rates were recorded in organisms exposed at 25°C, irrespective of the compound, after 30 and 60min of exposure. At 20°C, there was a significant decrease in respiration rate (Dunnett́s test p<0.05) under conditions of severe anoxia (1mg O2L(-1)) in organisms exposed to 13.3μgL(-1) of DF. At 25°C a significantly lower respiration rate with respect to the control (Dunnett́s test p<0.05) was found in organisms exposed to 13.8μgL(-1) of CBZ under conditions of moderate hypoxia and well-oxygenated water (3 and 5mg O2L(-1), respectively). The respiratory independence of organisms exposed to the higher temperature (25°C) also decreased. This study shows that CBZ and DF individually, even at relatively low concentrations, may produce respiratory deficiencies in the freshwater shrimp, Atyaephyra desmarestii under certain temperature and water oxygenation conditions, thus reducing its ability to function.
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Affiliation(s)
- Elena Nieto
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro s/n, 11510 Puerto Real, Spain.
| | - Miriam Hampel
- Departamento de Química Física, Centro Andaluz de Ciencia y Tecnología Marinas (CACYTMAR), Universidad de Cádiz, Campus Universitario Río San Pedro s/n, 11510 Puerto Real, Spain
| | - Enrique González-Ortegón
- Instituto Español de Oceanografía, Centro Oceanográfico de Cádiz, Muelle de Levante, Apdo. 2609, 11006 Cádiz, Spain
| | - Pilar Drake
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro s/n, 11510 Puerto Real, Spain
| | - Julián Blasco
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Río San Pedro s/n, 11510 Puerto Real, Spain
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Almojil D, Arias MC, Beasley RR, Chen Y, Clark RW, Dong Y, Dong Z, Forsdick N, Françoso E, González-Ortegón E, González-Tizón AM, Gui L, Guo H, Guo H, Hale ML, Jiang S, Jones KL, Lance SL, Lei Y, Li J, Li X, Li H, Li C, Li X, Li J, Lian Z, Liang Z, Lindgreen S, Liu T, Liu M, Liu Z, Liu X, Lu Y, Lv T, Ma Q, Ma W, Martínez-Lage A, Massaro M, Niu D, Perina A, Ramalho M, Ricardo PC, Rice SE, Santos PKF, Sha W, Silva M, Song Z, Sun X, Vizcaíno A, Wang Y, Wang X, Wang C, Wang C, Wei D, Wu X, Wu B, Xiang X, Xue S, Yang A, Yuan X, Zan L, Zhan A, Zhang N, Zhang D, Zhang H, Zhang J, Zhang L, Zhang G, Zhang H, Zhang Z, Zhang G, Zhao C, Zhou Y, Zhou L, Zhu K, Zhu W. Microsatellite records for volume 8, issue 2. CONSERV GENET RESOUR 2016. [DOI: 10.1007/s12686-016-0549-4] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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González-Ortegón E, Blasco J, Nieto E, Hampel M, Le Vay L, Giménez L. Individual and mixture effects of selected pharmaceuticals on larval development of the estuarine shrimp Palaemon longirostris. Sci Total Environ 2016; 540:260-266. [PMID: 26163379 DOI: 10.1016/j.scitotenv.2015.06.081] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2015] [Revised: 06/20/2015] [Accepted: 06/20/2015] [Indexed: 06/04/2023]
Abstract
Few ecotoxicological studies incorporate within the experimental design environmental variability and mixture effects when assessing the impact of pollutants on organisms. We have studied the combined effects of selected pharmaceutical compounds and environmental variability in terms of salinity and temperature on survival, development and body mass of larvae of the estuarine shrimp Palaemon longirostris. Drug residues found in coastal waters occur as mixture, and the evaluation of combined effects of simultaneously occurring compounds is indispensable for their environmental risk assessment. All larval stages of P. longirostris were exposed to the nonsteroidal anti-inflammatory drug (NSAID) diclofenac sodium (DS: 40 and 750 μg L(-1)), the lipid regulator clofibric acid (CA: 17 and 361 μg L(-1)) and the fungicide clotrimazole (CLZ: 0.14 and 4 μg L(-1)). We observed no effect on larval survival of P. longirostris with the tested pharmaceuticals. However, and in contrast to previous studies on larvae of the related marine species Palaemon serratus, CA affected development through an increase in intermoult duration and reduced growth without affecting larval body mass. These developmental effects in P. longirostris larvae were similar to those observed in the mixture of DS and CA confirming the toxic effects of CA. In the case of CLZ, its effects were similar to those observed previously in P. serratus: high doses affected development altering intermoult duration, tended to reduce the number of larval instars and decreased significantly the growth rate. This study suggests that an inter-specific life histories approach should be taken into account to assess the effect of emergent compounds in coastal waters.
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Affiliation(s)
- Enrique González-Ortegón
- School of Ocean Sciences, College of Natural Sciences, Bangor University, Menai Bridge, UK; Instituto Español de Oceanografía, Centro Oceanográfico de Cádiz, Spain.
| | - Julian Blasco
- Instituto de Ciencias Marinas de Andalucía, CSIC, Puerto Real, Spain
| | - Elena Nieto
- Instituto de Ciencias Marinas de Andalucía, CSIC, Puerto Real, Spain
| | - Miriam Hampel
- Department of Physical Chemistry, Andalusian Centre for Marine Science and Technology (CACYTMAR), University of Cadiz, Spain
| | - Lewis Le Vay
- Centre for Applied Marine Sciences, College of Natural Sciences, Bangor University, Menai Bridge UK
| | - Luis Giménez
- School of Ocean Sciences, College of Natural Sciences, Bangor University, Menai Bridge, UK
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González-Ortegón E, Palero F, Lejeusne C, Drake P, Cuesta JA. A salt bath will keep you going? Euryhalinity tests and genetic structure of caridean shrimps from Iberian rivers. Sci Total Environ 2016; 540:11-19. [PMID: 26118862 DOI: 10.1016/j.scitotenv.2015.06.028] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2015] [Revised: 06/05/2015] [Accepted: 06/06/2015] [Indexed: 06/04/2023]
Abstract
We assessed the role of euryhalinity and life-history traits on the population genetic structure of the four main caridean shrimp species from the Iberian Peninsula (Atyaephyra desmarestii, Dugastella valentina, Palaemon varians and Palaemon zariquieyi) able to complete their life cycle in freshwater/oligohaline habitats. Seawater exposure experiments indicated that A. desmarestii, D. valentina and P. zariquieyi are more sensitive to high salinity waters than P. varians and confirm the relationship between osmolality regulation and spatial distribution of species. The limited or no survival in seawater could explain the restricted distributions observed in D. valentina and P. zariquieyi, whereas the current A. desmarestii distribution could be due to either past river dynamics and/or human-mediated water transfers. Conversely, the high tolerance of P. varians to a large salinity range (euryhalinity) could explain its capacity to colonize geographically distant estuaries. In agreement with osmoregulation results, the phylogeography patterns of the cytochrome oxidase 1 (Cox 1) gene fragment revealed significant genetic differentiation among river systems whatever the species considered. Atyidae species presented higher nucleotide diversity levels than Palaemonidae species, while isolation-by-distance patterns were only found for the latter. Our results have important implications for the management and conservation of freshwater species, since the inter-catchment connectivity may affect the speciation processes.
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Affiliation(s)
| | - Ferran Palero
- INRA, Univ. Nice Sophia Antipolis, CNRS, UMR 1355-7254 Institut Sophia Agrobiotech, 06900 Sophia Antipolis, France
| | - Christophe Lejeusne
- Sorbonne Universités, UPMC University Paris 06, Laboratory "Adaptation and Diversity in the Marine Environment", Team "Diversity and Connectivity in Coastal Marine Landscapes", UMR 7144, Station Biologique de Roscoff, F-29680 Roscoff, France; Centre National de la Recherche Scientifique (CNRS), Laboratory "Adaptation and Diversity in the Marine Environment", Team "Diversity and Connectivity in Coastal Marine Landscapes", UMR 7144, Station Biologique de Roscoff, F-29680 Roscoff, France
| | - Pilar Drake
- Instituto de Ciencias Marinas de Andalucía (CSIC), Avda. República Saharaui, 2, 11519 Puerto Real, Cádiz, Spain
| | - Jose A Cuesta
- Instituto de Ciencias Marinas de Andalucía (CSIC), Avda. República Saharaui, 2, 11519 Puerto Real, Cádiz, Spain
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González-Ortegón E, Baldó F, Arias A, Cuesta JA, Fernández-Delgado C, Vilas C, Drake P. Freshwater scarcity effects on the aquatic macrofauna of a European Mediterranean-climate estuary. Sci Total Environ 2015; 503-504:213-221. [PMID: 25005237 DOI: 10.1016/j.scitotenv.2014.06.020] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2014] [Revised: 05/23/2014] [Accepted: 06/06/2014] [Indexed: 06/03/2023]
Abstract
In the Mediterranean-climate zone, recurrent drought events and increasing water demand generally lead to a decrease in freshwater input to estuaries. This water scarcity may alter the proper function of estuaries as nursery areas for marine species and as permanent habitat for estuarine species. A 12-year data set of the aquatic macrofauna (fish, decapod and mysid crustaceans) in a Mediterranean estuary (Guadalquivir estuary, South Spain) was analysed to test if water scarcity favours the nursery function of regional estuaries to the detriment of permanent estuarine inhabitants. Target species typically displayed a salinity-related distribution and estuarine salinisation in dry years resulted in a general upstream community displacement. However, annual densities of marine species were neither consistently higher in dry years nor estuarine species during wet years. Exceptions included the estuarine mysid Neomysis integer and the marine shrimp Crangon crangon, which were more abundant in wet and dry years, respectively. High and persistent turbidity, a collateral effect of water scarcity, altered both the structural (salinity-related pattern) and functional (key prey species and predator density) community characteristics, chiefly after the second drought period of the analysis. The observed high inter-year environmental variability, as well as species-specific effects of water scarcity, suggests that exhaustive and long-term sampling programmes will be required for rigorously monitoring the estuarine communities of the Mediterranean-climate region.
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Affiliation(s)
| | - Francisco Baldó
- Instituto Español de Oceanografía, Apartado 2609, 11006 Cádiz, Spain
| | - Alberto Arias
- Instituto de Ciencias Marinas de Andalucía (CSIC), Avda. República Saharaui 2, 11519 Puerto Real, Cádiz, Spain
| | - Jose A Cuesta
- Instituto de Ciencias Marinas de Andalucía (CSIC), Avda. República Saharaui 2, 11519 Puerto Real, Cádiz, Spain
| | - Carlos Fernández-Delgado
- Departamento Biología Animal, Edificio C-1, Campus Universitario de Rabanales, Universidad de Córdoba, 14071 Córdoba, Spain
| | - César Vilas
- IFAPA Centro El Toruño, Camino Tiro de Pichón s/n, 11500 El Puerto de Santa María, Spain
| | - Pilar Drake
- Instituto de Ciencias Marinas de Andalucía (CSIC), Avda. República Saharaui 2, 11519 Puerto Real, Cádiz, Spain
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González-Ortegón E, Walton MEM, Moghaddam B, Vilas C, Prieto A, Kennedy HA, Pedro Cañavate J, Le Vay L. Flow regime in a restored wetland determines trophic links and species composition in the aquatic macroinvertebrate community. Sci Total Environ 2015; 503-504:241-250. [PMID: 25242150 DOI: 10.1016/j.scitotenv.2014.09.002] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 09/01/2014] [Accepted: 09/01/2014] [Indexed: 06/03/2023]
Abstract
In a restored wetland (South of Spain), where different flow regimes control water exchange with the adjacent Guadalquivir estuary, the native Palaemon varians coexists with an exotic counterpart species Palaemon macrodactylus. This controlled m\acrocosm offers an excellent opportunity to investigate how the effects of water management, through different flow regimes, and the presence of a non-native species affect the aquatic community and the trophic niche (by gut contents and C-N isotopic composition) of the native shrimp Palaemon varians. We found that increased water exchange rate (5% day(-1) in mixed ponds vs. 0.1% day(-1) in extensive ponds) modified the aquatic community of this wetland; while extensive ponds are dominated by isopods and amphipods with low presence of P. macrodactylus, mixed ponds presented high biomass of mysids, corixids, copepods and both shrimp species. An estuarine origin of nutrients and primary production might explain seasonal and spatial differences found among ponds of this wetland. A combined analysis of gut contents and isotopic composition of the native and the exotic species showed that: (1) native P. varians is mainly omnivorous (2) while the non-native P. macrodactylus is more zooplanktivorous and (3) a dietary overlap occurred when both species coexist at mixed ponds where a higher water exchange and high abundance of mysids and copepods diversifies the native species' diet. Thus differences in the trophic ecology of both species are clearly explained by water management. This experimental study is a valuable tool for integrated management between river basin and wetlands since it allows quantification of wetland community changes in response to the flow regime.
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Affiliation(s)
- E González-Ortegón
- School of Ocean Sciences, Bangor University, Menai Bridge LL59 5AB, UK; IFAPA Centro El Toruño, Camino Tiro de Pichón s/n, 11500 El Puerto de Santa María, Spain.
| | - M E M Walton
- School of Ocean Sciences, Bangor University, Menai Bridge LL59 5AB, UK
| | - B Moghaddam
- School of Ocean Sciences, Bangor University, Menai Bridge LL59 5AB, UK
| | - C Vilas
- IFAPA Centro El Toruño, Camino Tiro de Pichón s/n, 11500 El Puerto de Santa María, Spain
| | - A Prieto
- IFAPA Centro El Toruño, Camino Tiro de Pichón s/n, 11500 El Puerto de Santa María, Spain
| | - H A Kennedy
- School of Ocean Sciences, Bangor University, Menai Bridge LL59 5AB, UK
| | - J Pedro Cañavate
- IFAPA Centro El Toruño, Camino Tiro de Pichón s/n, 11500 El Puerto de Santa María, Spain
| | - L Le Vay
- School of Ocean Sciences, Bangor University, Menai Bridge LL59 5AB, UK
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González-Ortegón E, Giménez L, Blasco J, Le Vay L. Effects of food limitation and pharmaceutical compounds on the larval development and morphology of Palaemon serratus. Sci Total Environ 2015; 503-504:171-178. [PMID: 25240506 DOI: 10.1016/j.scitotenv.2014.08.118] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 08/29/2014] [Accepted: 08/30/2014] [Indexed: 06/03/2023]
Abstract
Few ecotoxicological studies consider the roles of maternal influences and suboptimal environmental conditions when assessing the impact of pollutants on organisms. We studied the combined effects of pharmaceutical compounds, food condition and maternal body size on growth, development, body mass and morphology of larvae of the marine shrimp Palaemon serratus. Limited food availability is considered a factor leading to reduced survival and growth in marine crustacean larvae. It is known that P. serratus responses to food limitation vary among larvae hatched from females of different body length. The pharmaceuticals tested were the anti-inflammatory and analgesic diclofenac sodium (DS: at 77 μg L-1 and 720 μg L-1) the lipid regulator clofibric acid (CA: at 42 μg L-1 and 394 μg L-1) and the fungicide clotrimazole (CLZ: at 0.07 μg L-1 and 3.16 μg L-1). We observed morphological abnormalities in larvae exposed to CLZ. In addition, effects of this compound were stronger under food limitation leading to (1) reduced survival by 30%, (2) reduced juvenile body mass (22%) and (3) reduction in the number of molt stages (from 13 to 9) during larval development. This latter effect may indicate that CLZ reduced the larval capacity to respond to food limitation because development through a longer route, with additional stages, is considered an adaptive response to prioritize maintenance over morphogenesis. CA and DS affected developmental rate under food limitation but not growth or body mass. The toxic effects of CLZ, at lower concentrations than CA and DS, were stronger in larvae with higher body mass, hatched from the largest females. This suggests that maternal influences and suboptimal environmental conditions should be further studied to inform modeling of the effects of emergent compounds on larvae of marine coastal species.
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Affiliation(s)
- Enrique González-Ortegón
- School of Ocean Sciences, College of Natural Sciences, Bangor University, Menai Bridge, LL59 5AB, UK; IFAPA Centro El Toruño, Camino Tiro de Pichón s/n, 11500 El Puerto de Santa María, Spain.
| | - Luis Giménez
- School of Ocean Sciences, College of Natural Sciences, Bangor University, Menai Bridge, LL59 5AB, UK
| | - Julian Blasco
- Instituto de Ciencias Marinas de Andalucía, CSIC, 11519 Puerto Real, Spain
| | - Lewis Le Vay
- Centre for Applied Marine Sciences, College of Natural Sciences, Bangor University, Menai Bridge, LL59 5AB, UK
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Nieto E, Blasco J, González-Ortegón E, Drake P, Hampel M. Is Atyaephyra desmarestii a useful candidate for lethal and sub-lethal toxicity tests on pharmaceutical compounds? J Hazard Mater 2013; 263 Pt 1:256-265. [PMID: 24034897 DOI: 10.1016/j.jhazmat.2013.08.035] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/20/2013] [Revised: 08/13/2013] [Accepted: 08/14/2013] [Indexed: 06/02/2023]
Abstract
Single and mixture toxicity tests on three pharmaceutical compounds, Diclofenac (DF), Ibuprofen (IB) and Carbamazepine (CBZ), were carried out with the freshwater shrimp Atyaephyra desmarestii. Lethal and sublethal responses were analyzed for single compounds. Lethal concentrations (LC50) obtained for each individual compound, after 96 h of exposure, were 6.3 mg L(-1) for DF, 13.3 mg L(-1) for IB and 94.3 mg L(-1) for CBZ. The selected sublethal endpoints of food ingestion, osmoregulatory capacity and respiration rates were not affected by the exposures to environmentally-relevant concentrations. Based on mortality data obtained, the predictive no effect concentration (PNEC) was calculated for each of the compounds, and compared with predicted environmental concentrations (PEC) reported in surface waters. The environmental risk of each compound was estimated as the ratio between PEC/PNEC, and indicated that IB could represent a medium risk in freshwater environments. Additionally, binary and ternary mixture toxicity assays of the selected compounds were carried out. The data obtained was applied to two predictive toxicity models: Concentration Addition (CA) and Independent Action (IA). Finally, risk assessment was estimated using risk quotients (RQ) for the compound mixtures based on EC50 and LC50 values.
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Affiliation(s)
- Elena Nieto
- Instituto de Ciencias Marinas de Andalucía (ICMAN-CSIC), Campus Universitario Rio San Pedro, 11510 Puerto Real, Spain.
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González-Ortegón E, Blasco J, Le Vay L, Giménez L. A multiple stressor approach to study the toxicity and sub-lethal effects of pharmaceutical compounds on the larval development of a marine invertebrate. J Hazard Mater 2013; 263 Pt 1:233-238. [PMID: 24209509 DOI: 10.1016/j.jhazmat.2013.09.041] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/08/2013] [Revised: 09/13/2013] [Accepted: 09/16/2013] [Indexed: 06/02/2023]
Abstract
We studied the effects of three common pharmaceutical compounds on growth, development and body mass of larval stages of the marine shrimp Palaemon serratus at different temperatures and salinities. The pharmaceuticals compounds tested were the anti-inflammatory and analgesic diclofenac sodium, the lipid regulator clofibric acid and the fungicide clotrimazole. Neither diclofenac nor clofibric acid had any effect on growth, development or survival, although the maximum concentrations tested were 40 times higher than those observed in European coastal waters. Clotrimazole had significant effects at the higher concentration (2.78 μg L(-1)) when larvae were reared in full salinity sea water (32 PSU) and at the lower concentration (0.14 μg L(-1)) when larvae were reared at 20PSU. Changes in body mass at larval stage resulted from effects of these compounds on growth and developmental rates, specifically the changes in intermoult duration and in the number of larval instars required to reach the juvenile stage. The results demonstrate that the effects of emergent compounds on growth and development may be stronger when organisms are under some additional stress.
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Affiliation(s)
- E González-Ortegón
- School of Ocean Sciences, College of Natural Sciences, Bangor University, Menai Bridge, UK.
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González-Ortegón E, Subida MD, Arias AM, Baldó F, Cuesta JA, Fernández-Delgado C, Vilas C, Drake P. Nekton response to freshwater inputs in a temperate European estuary with regulated riverine inflow. Sci Total Environ 2012; 440:261-271. [PMID: 22795595 DOI: 10.1016/j.scitotenv.2012.06.061] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/17/2012] [Revised: 06/15/2012] [Accepted: 06/15/2012] [Indexed: 06/01/2023]
Abstract
The aim of this 12-year study was to assess the nekton (fish, decapod crustaceans) response to freshwater inputs (rainfall, dam discharges) in a temperate estuary with regulated riverine inflow. Although interannual variability in river discharges to the Guadalquivir estuary has been extremely high since the construction of a dam in 1930, a significant decreasing trend in the dam's discharges has been observed in the last 80 years. During this study, an alternation of wet, standard and dry years occurred in the estuarine area but no significant long-term trend was observed. River discharge, in turn, showed a considerable interannual variability and a significantly decreasing long-term trend. Freshwater inputs had an immediate effect on estuarine salinity and turbidity, and consequently on prey availability (mysids). Although 124 nektonic species were collected, only 47 of them (adding up to 99.7% of total abundance) were regularly present in the estuary: 32 marine migrants, 13 estuarine species and 2 diadromous species. Well-defined temporal changes in species composition and abundance yielded clear seasonal patterns in the estuarine nektonic community. Considerable intermonth and interannual changes were occasionally observed relating to freshwater inputs, mainly in winter/autumn of wet years. Thus, within each two-month period, some significant interannual differences in the nektonic community were also observed, with marine migrants tending to be more abundant in dry years. However, changes in the studied nektonic community did not show long-term trends. In conclusion, natural and human-controlled freshwater inputs currently play a significant role in determining the physicochemical conditions and the biota of the Guadalquivir estuary. However, although freshwater input seemed to transitorily affect the estuarine nekton, either directly (flushing out) or indirectly (through changes in salinity, turbidity and prey availability), a quick reestablishment of the estuarine nekton (strong resilience) was observed following freshwater inputs together with the recovery of environmental conditions within the estuary.
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Affiliation(s)
- E González-Ortegón
- Instituto de Ciencias Marinas de Andalucía (CSIC), Avda. República Saharaui 2, 11519 Puerto Real, Cádiz, Spain
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