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Avendaño KA, Ponce-Jahen SJ, Valenzuela EI, Pajares S, Samperio-Ramos G, Camacho-Ibar VF, Cervantes FJ. Nitrogen loss in coastal sediments driven by anaerobic ammonium oxidation coupled to microbial reduction of Mn(IV)-oxide. Sci Total Environ 2024; 923:171368. [PMID: 38438040 DOI: 10.1016/j.scitotenv.2024.171368] [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: 01/12/2024] [Revised: 02/27/2024] [Accepted: 02/27/2024] [Indexed: 03/06/2024]
Abstract
Coastal sediments play a central role in regulating the amount of land-derived reactive nitrogen (Nr) entering the ocean, and their importance becomes crucial in vulnerable ecosystems threatened by anthropogenic activities. Sedimentary denitrification has been identified as the main sink of Nr in marine environments, while anaerobic ammonium oxidation with nitrite (anammox) has also been pointed out as a key player in controlling the nitrogen pool in these locations. Collected evidence in the present work indicates that the microbial biota in coastal sediments from Baja California (northwestern Mexico) has the potential to drive anaerobic ammonium oxidation linked to Mn(IV) reduction (manganammox). Unamended sediment showed ammonification, but addition of vernadite (δMnO2 with nano-crystal size ∼15 Å) as terminal electron acceptor fueled simultaneous ammonium oxidation (up to ∼400 μM of ammonium removed) and production of Mn(II) with a ratio ∆[Mn(II)]/∆[NH4+] of 1.8, which is very close to the stoichiometric value of manganammox (1.5). Additional incubations spiked with external ammonium also showed concomitant ammonium oxidation and Mn(II) production, accounting for ∼30 % of the oxidized ammonium. Tracer analysis revealed that the nitrogen loss associated with manganammox was 4.2 ± 0.4 μg 30N2/g-day, which is 17-fold higher than that related to the feammox process (anaerobic ammonium oxidation linked to Fe(III) reduction, 0.24 ± 0.02 μg 30N2/g-day). Taxonomic characterization based on 16S rRNA gene sequencing revealed the existence of several clades belonging to Desulfobacterota as potential microorganisms catalyzing the manganammox process. These findings suggest that manganammox has the potential to be an additional Nr sink in coastal environments, whose contribution to total Nr losses remains to be evaluated.
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Affiliation(s)
- Karen A Avendaño
- Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Campus Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 2001, 76230 Querétaro, Mexico
| | - Sergio J Ponce-Jahen
- Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Campus Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 2001, 76230 Querétaro, Mexico
| | - Edgardo I Valenzuela
- Escuela de Ingeniería y Ciencias, Tecnológico de Monterrey, Campus Puebla, Atlixcáyotl 5718, Reserva Territorial Atlixcáyotl, Puebla 72453, Mexico
| | - Silvia Pajares
- Unidad Académica de Ecología y Biodiversidad Acuática, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Guillermo Samperio-Ramos
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico
| | - Víctor F Camacho-Ibar
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico
| | - Francisco J Cervantes
- Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Campus Juriquilla, Universidad Nacional Autónoma de México, Blvd. Juriquilla 2001, 76230 Querétaro, Mexico.
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Samperio-Ramos G, Hernández-Sánchez O, Camacho-Ibar VF, Pajares S, Gutiérrez A, Sandoval-Gil JM, Reyes M, De Gyves S, Balint S, Oczkowski A, Ponce-Jahen SJ, Cervantes FJ. Ammonium loss microbiologically mediated by Fe(III) and Mn(IV) reduction along a coastal lagoon system. Chemosphere 2024; 349:140933. [PMID: 38092166 DOI: 10.1016/j.chemosphere.2023.140933] [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: 09/07/2023] [Revised: 11/17/2023] [Accepted: 12/08/2023] [Indexed: 12/17/2023]
Abstract
Anaerobic ammonium oxidation, associated with both iron (Feammox) and manganese (Mnammox) reduction, is a microbial nitrogen (N) removal mechanism recently identified in natural ecosystems. Nevertheless, the spatial distributions of these non-canonical Anammox (NC-Anammox) pathways and their environmental drivers in subtidal coastal sediments are still unknown. Here, we determined the potential NC-Anammox rates and abundance of dissimilatory metal-reducing bacteria (Acidomicrobiaceae A6 and Geobacteraceae) at different horizons (0-20 cm at 5 cm intervals) of subtidal coastal sediments using the 15N isotope-tracing technique and molecular analyses. Sediments were collected across three sectors (inlet, transition, and inner) in a coastal lagoon system (Bahia de San Quintin, Mexico) dominated by seagrass meadows. The positive relationship between 30N2 production rates and dissimilatory Fe and Mn reduction provided evidence for Feammox's and Mnammox's co-occurrence. N loss through NC-Anammox was detected in subtidal sediments, with potential rates of 0.07-0.62 μg N g-1 day-1. NC-Anammox process in vegetated sediments tended to be higher than those in adjacent unvegetated ones. NC-Anammox rates showed a subsurface peak (between 5 and 15 cm) in the vegetated sediments but decreased consistently with depth in the adjacent bare bottoms. Thus, the presence/absence of seagrasses and sediment characteristics, particularly the availability of organic carbon and microbiologically reducible Fe(III) and Mn(IV), affected the abundance of dissimilatory metal-reducing bacteria, which mediated NC-Anammox activity and the associated N removal. An annual loss of 32.31 ± 3.57 t N was estimated to be associated with Feammox and Mnammox within the investigated area, accounting for 2.8-4.7% of the gross total import of reactive N from the ocean into the Bahia de San Quintin. Taken as a whole, this study reveals the distribution patterns and controlling factors of the NC-Anammox pathways along a coastal lagoon system. It improves our understanding of the coupling between N and trace metal cycles in coastal environments.
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Affiliation(s)
- Guillermo Samperio-Ramos
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico.
| | - Oscar Hernández-Sánchez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico
| | - Víctor F Camacho-Ibar
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico
| | - Silvia Pajares
- Unidad Académica de Ecología y Biodiversidad Acuática, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Ciudad de México, Mexico
| | - Aaron Gutiérrez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico
| | - José Miguel Sandoval-Gil
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico
| | - Mauricio Reyes
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico
| | - Sebastian De Gyves
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Ensenada, Mexico; Instituto Potosino de Investigación Científica y Tecnológica (IPICYT), San Luis Potosí, Mexico
| | - Sawyer Balint
- ORISE Participant, Atlantic Coastal Environmental Sciences Division, US Environmental Protection Agency, Narragansett, RI, USA
| | - Autumn Oczkowski
- Atlantic Coastal Environmental Sciences Division, US Environmental Protection Agency, Narragansett, RI, USA
| | - Sergio J Ponce-Jahen
- Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Campus Juriquilla, Universidad Nacional Autónoma de México, Mexico
| | - Francisco J Cervantes
- Laboratory for Research on Advanced Processes for Water Treatment, Engineering Institute, Campus Juriquilla, Universidad Nacional Autónoma de México, Mexico
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Bonet-Melià P, Sandoval-Gil JM, Samperio-Ramos G, Vivanco-Bercovich M, Canino-Herrera SR, Durazo R, Camacho-Ibar VF, Alexandre A. Marine heatwaves can limit the role of surfgrasses as biofilters for wastewaters. Mar Pollut Bull 2023; 196:115651. [PMID: 37832497 DOI: 10.1016/j.marpolbul.2023.115651] [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: 04/20/2023] [Revised: 10/07/2023] [Accepted: 10/09/2023] [Indexed: 10/15/2023]
Abstract
Marine heatwaves (MHWs) can have detrimental effects on seagrasses, but knowledge about the impacts on their ecosystem services remains scarce. This work evaluated Phyllospadix scouleri (surgrass) as a biofilter for wastewater discharges, and how warming associated with MHW may affect this ecological function. The nitrogen uptake kinetics and assimilation abilities for ammonium, nitrate, and urea were examined under two different warming scenarios (single and repeated events) simulated in a mesocosm. N-uptake kinetics were related to urban sewage discharges close to surfgrass meadows. Our results revealed that surfgrasses can serve as effective biofilters because of their high nitrogen uptake rates and above-average canopy biomass. Nonetheless, exposure to both experimental warmings resulted in a significant decline in their ability to incorporate and assimilate nitrogen. Consequently, MHWs may reduce the capacity of surfgrasses to function as nitrogen sinks and green filters for sewage waters, jeopardizing their role as Blue Nitrogen systems.
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Affiliation(s)
- Paula Bonet-Melià
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Ensenada, Baja California, Mexico
| | - Jose Miguel Sandoval-Gil
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Ensenada, Baja California, Mexico.
| | - Guillermo Samperio-Ramos
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Ensenada, Baja California, Mexico
| | - Manuel Vivanco-Bercovich
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Ensenada, Baja California, Mexico
| | - Sergio R Canino-Herrera
- Universidad Autónoma de Baja California (UABC), Facultad de Ciencias Marinas, Ensenada, Baja California, Mexico
| | - Reginaldo Durazo
- Universidad Autónoma de Baja California (UABC), Facultad de Ciencias Marinas, Ensenada, Baja California, Mexico
| | - Víctor F Camacho-Ibar
- Universidad Autónoma de Baja California (UABC), Instituto de Investigaciones Oceanológicas (IIO), Ensenada, Baja California, Mexico
| | - Ana Alexandre
- Universidade do Algarve, Marine Plant Ecology Research Group, CCMAR, Centre of Marine Sciences, Faro, Portugal
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Orozco-Durán A, Daesslé LW, Camacho-Ibar VF, Ortiz-Campos E, Barth JAC. Turnover and release of P-, N-, Si-nutrients in the Mexicali Valley (Mexico): interactions between the lower Colorado River and adjacent ground- and surface water systems. Sci Total Environ 2015; 512-513:185-193. [PMID: 25617998 DOI: 10.1016/j.scitotenv.2015.01.016] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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: 11/11/2014] [Revised: 01/08/2015] [Accepted: 01/08/2015] [Indexed: 06/04/2023]
Abstract
A study on dissolved nitrate, ammonium, phosphate and silicate concentrations was carried out in various water compartments (rivers, drains, channels, springs, wetland, groundwater, tidal floodplains and ocean water) in the Mexicali Valley and the Colorado River delta between 2012 and 2013, to assess modern potential nutrient sources into the marine system after river damming. While nitrate and silicate appear to have a significant input into the coastal ocean, phosphate is rapidly transformed into a particulate phase. Nitrate is, in general, rapidly bio-consumed in the surface waters rich in micro algae, but its excess (up to 2.02 mg L(-1) of N from NO3 in winter) in the Santa Clara Wetland represents a potential average annual source to the coast of 59.4×10(3)kg N-NO3. Despite such localized inputs, continuous regional groundwater flow does not appear to be a source of nitrate to the estuary and coastal ocean. Silicate is associated with groundwaters that are also geothermally influenced. A silicate receiving agricultural drain adjacent to the tidal floodplain had maximum silicate concentrations of 16.1 mg L(-1) Si-SiO2. Seepage of drain water and/or mixing with seawater during high spring tides represents a potential source of dissolved silicate and nitrate into the Gulf of California.
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Affiliation(s)
- A Orozco-Durán
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Transpeninsular Tijuana-Ensenada No. 3917, Fraccionamiento Playitas, CP 22860 Ensenada, Baja California, Mexico
| | - L W Daesslé
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Transpeninsular Tijuana-Ensenada No. 3917, Fraccionamiento Playitas, CP 22860 Ensenada, Baja California, Mexico; University of Erlangen-Nuremberg (FAU), Department of Geography and Geosciences, GeoZentrumNordbayern, Schlossgarten 5, 91054 Erlangen, Germany.
| | - V F Camacho-Ibar
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Transpeninsular Tijuana-Ensenada No. 3917, Fraccionamiento Playitas, CP 22860 Ensenada, Baja California, Mexico
| | - E Ortiz-Campos
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Transpeninsular Tijuana-Ensenada No. 3917, Fraccionamiento Playitas, CP 22860 Ensenada, Baja California, Mexico
| | - J A C Barth
- University of Erlangen-Nuremberg (FAU), Department of Geography and Geosciences, GeoZentrumNordbayern, Schlossgarten 5, 91054 Erlangen, Germany
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Del Toro L, Heckel G, Camacho-Ibar VF, Schramm Y. California sea lions (Zalophus californianus californianus) have lower chlorinated hydrocarbon contents in northern Baja California, México, than in California, USA. Environ Pollut 2006; 142:83-92. [PMID: 16297516 DOI: 10.1016/j.envpol.2005.09.019] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/10/2005] [Revised: 09/23/2005] [Accepted: 09/23/2005] [Indexed: 05/05/2023]
Abstract
Chlorinated hydrocarbons (CHs) were determined in blubber samples of 18 California sea lions (Zalophus californianus californianus) that stranded dead along Todos Santos Bay, Ensenada, Baja California, México, January 2000-November 2001. Summation operatorDDTs were the dominant group (geometric mean 3.8 microg/g lipid weight), followed by polychlorinated biphenyls ( summation operatorPCBs, 2.96 microg/g), chlordanes (0.12 microg/g) and hexachlorocyclohexanes (0.06 microg/g). The summation operatorDDTs/ summation operatorPCBs ratio was 1.3. We found CH levels more than one order of magnitude lower than those reported for California sea lion samples collected along the California coast, USA, during the same period as our study. This sharp north-south gradient suggests that Z. californianus stranded in Ensenada (most of them males) would probably have foraged during the summer near rookeries 500-1000 km south of Ensenada and the rest of the year migrate northwards, foraging along the Baja California peninsula, including Ensenada, and probably farther north.
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Affiliation(s)
- Ligeia Del Toro
- Universidad Autónoma de Baja California (UABC), Facultad de Ciencias Marinas, Ensenada, Baja California, México
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Camacho-Ibar VF, Carriquiry JD, Smith SV. Non-conservative P and N fluxes and net ecosystem production in San Quintin Bay, México. ACTA ACUST UNITED AC 2003. [DOI: 10.1007/bf02803626] [Citation(s) in RCA: 34] [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: 11/30/2022]
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