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Büchner-Miranda JA, Jaramillo HN, Ramírez-Kuschel EF, Salas-Yanquin LP, Pérez-Echeverría I, Paredes-Molina FJ, Sabja-Llanos EN, Cubillos VM, Montory JA, Chaparro OR. Volcanic ash in the water column: Cellular, physiological and anatomical implications for the gastropod suspension-feeder Crepipatella peruviana (Lamarck, 1822). CHEMOSPHERE 2024; 365:143294. [PMID: 39265734 DOI: 10.1016/j.chemosphere.2024.143294] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2024] [Revised: 09/02/2024] [Accepted: 09/05/2024] [Indexed: 09/14/2024]
Abstract
The influx of volcanic ash into seawater alters particle composition with implications for the cellular, physiological and anatomical response of suspension-feeding organisms. Adult females of Crepipatella peruviana were exposed to three diets consisting of a fixed concentration of 50,000 cells ml-1 of the microalga Isochrysis galbana plus different concentrations of ash particles (30, 90 and 150 mg L-1). The objective was to determine the cellular, physiological and anatomical responses. Mortality increased with ash concentrations, while feeding and respiration rates, tissue weight, and condition index decreased. The gills showed severe degradation of cilia and the presence of large mucous aggregates of cilia and ash. An increase in ash resulted in decreased lipid peroxidation and protein carbonyls, but increased total antioxidant capacity and phenols. Thus, volcanic ash particles may exert a high impact at both cellular and physiological levels for C. peruviana, where inhibition of gill function reduces the ability to acquire food.
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Affiliation(s)
| | - Hans N Jaramillo
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | | | - Luis P Salas-Yanquin
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | | | | | - Elayne N Sabja-Llanos
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Victor M Cubillos
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - Jaime A Montory
- Centro i∼mar, Universidad de Los Lagos, Casilla 557, Puerto Montt, Chile
| | - Oscar R Chaparro
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.
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Paredes-Molina FJ, Chaparro OR, Navarro JM, Cubillos VM, Paschke K, Márquez F, Averbuj A, Zabala MS, Bökenhans V, Pechenik JA. Upwelling as a stressor event during embryonic development: Consequences for encapsulated and early juvenile stages of the marine gastropod Acanthina monodon. MARINE ENVIRONMENTAL RESEARCH 2024; 193:106270. [PMID: 38011827 DOI: 10.1016/j.marenvres.2023.106270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 10/18/2023] [Accepted: 11/10/2023] [Indexed: 11/29/2023]
Abstract
Upwelling phenomena alter the physical and chemical parameters of the sea's subsurface waters, producing low levels of temperature, pH and dissolved oxygen, which can seriously impact the early developmental stages of marine organisms. To understand how upwelling can affect the encapsulated development of the gastropod Acanthina monodon, capsules containing embryos at different stages of development (initial, intermediate and advanced) were exposed to upwelling conditions (pH = 7.6; O2 = 3 mg L-1; T° = 9 °C) for a period of 7 days. Effects of treatment were determined by estimating parameters such as time to hatching, number of hatchlings per capsule, percentage of individuals with incomplete development, and shell parameters such as shell shape and size, shell strength, and the percentage of the organic/inorganic content. We found no significant impacts on hatching time, number of hatchlings per capsule, or percentage of incomplete development in either the presence or absence of upwelling, regardless of developmental stage. On the other hand, latent effects on encapsulated stages of A. monodon were detected in embryos that had been exposed to upwelling stress in the initial embryonic stage. The juveniles from this treatment hatched at smaller sizes and with higher organic content in their shells, resulting in a higher resistance to cracking 30 days after hatching, due to greater elasticity. Geometric morphometric analysis showed that exposure to upwelling condition induced a change in the morphology of shell growth in all post-hatching juveniles (0-30 days), regardless of embryonic developmental stage at the time of exposure. Thus, more elongated shells (siphonal canal and posterior region) and more globular shells were observed in newly hatched juveniles that had been exposed to the upwelling condition. The neutral or even positive upwelling exposure results suggests that exposure to upwelling events during the encapsulated embryonic phase of A. monodon development might not have major impacts on the future juvenile stages. However, this should be taken with caution in consideration of the increased frequency and intensity of upwelling events predicted for the coming decades.
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Affiliation(s)
- F J Paredes-Molina
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.
| | - O R Chaparro
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - J M Navarro
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de Chile, Valdivia, Chile
| | - V M Cubillos
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - K Paschke
- Instituto de Acuicultura, Universidad Austral de Chile, Puerto Montt, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Universidad Austral de Chile, Valdivia, Chile; Millennium Institute Biodiversity of Antarctic and Subantarctic Ecosystems, BASE, Universidad Austral de Chile, Chile
| | - F Márquez
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina; Universidad Nacional de La Patagonia San Juan Bosco (UNPSJB), Puerto Madryn, Argentina
| | - A Averbuj
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina
| | - M S Zabala
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina
| | - V Bökenhans
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina
| | - J A Pechenik
- Biology Department, Tufts University, Medford, MA, 02155, USA
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Paredes-Molina FJ, Chaparro OR, Navarro JM, Cubillos VM, Montory JA, Pechenik JA. Embryonic encapsulated development of the gastropod Acanthina monodon is impacted by future environmental changes of temperature and pCO 2. MARINE ENVIRONMENTAL RESEARCH 2023; 187:105971. [PMID: 37004497 DOI: 10.1016/j.marenvres.2023.105971] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/25/2022] [Revised: 03/15/2023] [Accepted: 03/28/2023] [Indexed: 06/19/2023]
Abstract
Egg capsules of the gastropod Acanthina monodon were maintained during the entire period of encapsulated development at three temperatures (10, 15, 20 °C) and two pCO2 levels (400, 1200 μatm). Embryos per capsule, size at hatching, time to hatching, embryonic metabolic rates, and the resistance of juveniles to shell breakage were quantified. No embryos maintained at 20 °C developed to hatching. The combination of temperature and pCO2 levels had synergistic effects on hatching time and developmental success, antagonistic effects on number of hatchlings per capsule, resistance to juvenile shell cracking and metabolism, and additive effect on hatching size. Juveniles hatched significantly sooner at 15 °C, independent of the pCO2 level that they had been exposed to, while individuals hatched at significantly smaller sizes if they had been held under 15 °C/1200 μatm rather than at 10 °C/low pCO2. Embryos held at the higher pCO2 had a significantly greater percentage of abnormalities. For capsules maintained at low pCO2 and 15 °C, emerging juveniles had less resistance to shell breakage. Embryonic metabolism was significantly higher at 15 °C than at 10 °C, independent of pCO2 level. The lower metabolism occurred in embryos maintained at the higher pCO2 level. Thus, in this study, temperature was the factor that had the greatest effect on the encapsulated development of A. monodon, increasing the metabolism of the embryos and consequently accelerating development, which was expressed in a shorter intracapsular development time, but with smaller individuals at hatching and a lower resistance of their shells to breakage. On the other hand, the high pCO2 level suppressed metabolism, prolonged intracapsular development, and promoted more incomplete development of the embryos. However, the combination of the two factors can mitigate--to some extent--the adverse effects of both incomplete development and lower resistance to shell breakage.
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Affiliation(s)
- F J Paredes-Molina
- Instituto de Ciencias Marinas y Limnologicas, Universidad Austral de Chile, Valdivia, Chile.
| | - O R Chaparro
- Instituto de Ciencias Marinas y Limnologicas, Universidad Austral de Chile, Valdivia, Chile
| | - J M Navarro
- Instituto de Ciencias Marinas y Limnologicas, Universidad Austral de Chile, Valdivia, Chile; Centro FONDAP de Investigación de Ecosistemas Marinos de Altas Latitudes (IDEAL), Valdivia, Chile
| | - V M Cubillos
- Instituto de Ciencias Marinas y Limnologicas, Universidad Austral de Chile, Valdivia, Chile
| | - J A Montory
- Centro i∼mar, Universidad De Los Lagos, Casilla 557, Puerto Montt, Chile
| | - J A Pechenik
- Biology Department, Tufts University, Medford, MA, 02155, USA
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Cubillos VM, Salas-Yanquin LP, Büchner-Miranda JA, Ramírez F, Zabala MS, Averbuj A, Márquez F, Jaramillo HN, Chaparro OR. UV-R mitigation strategies in encapsulated embryos of the intertidal gastropod Acanthina monodon: A way to compensate for lack of parental care. MARINE ENVIRONMENTAL RESEARCH 2022; 180:105711. [PMID: 35933825 DOI: 10.1016/j.marenvres.2022.105711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 07/22/2022] [Accepted: 07/23/2022] [Indexed: 06/15/2023]
Abstract
Intracapsular embryonic development in the intertidal zone exposes embryos to various stress sources characteristic of this environment, including UV-R. They require defensive mechanisms to mitigate its adverse effects. The presence of total carotenoids (TC), and mycosporine-like amino acids (MAAs) was studied in adults, in encapsulated embryos, and in the egg capsule walls of the intertidal gastropod Acanthina monodon. Oxygen consumption rates (OCR) were determined in encapsulated and excapsulated embryos exposed to photosynthetically active radiation (PAR) and PAR + UV-A + UV-B to understand if the capsule wall is a protective structure for encapsulated embryos. The results showed the presence of TC in adult pedal and gonad tissues, and in all encapsulated stages. MAAs were not detected. The physical structure of the capsule wall retained most wavelengths, being particularly efficient in the UV-B range. Excapsulated embryos exposed to PAR + UV-A + UV-B radiation increased its OCR compared to encapsulated embryos, indicating the protective character of the capsule wall.
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Affiliation(s)
- V M Cubillos
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile; Laboratorio Costero de Recursos Acuáticos de Calfuco, Universidad Austral de Chile, Valdivia, Chile
| | - L P Salas-Yanquin
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - J A Büchner-Miranda
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - F Ramírez
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - M S Zabala
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina
| | - A Averbuj
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina
| | - F Márquez
- Laboratorio de Reproducción y Biología Integrativa de Invertebrados Marinos (LARBIM)-IBIOMAR, CCT, CONICET-CENPAT, Puerto Madryn, Chubut, Argentina; Universidad Nacional de la Patagonia San Juan Bosco (UNPSJB), Puerto Madryn, Argentina
| | - H N Jaramillo
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile
| | - O R Chaparro
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, Valdivia, Chile.
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Riedemann-Saldivia B, Büchner-Miranda JA, Salas-Yanquin LP, Valdivia N, Catalán AM, Scrosati RA, Chaparro OR. Non-consumptive effects of a predatory snail (Acanthina monodon) on a dominant habitat-forming mussel species (Perumytilus purpuratus). MARINE ENVIRONMENTAL RESEARCH 2022; 175:105573. [PMID: 35134640 DOI: 10.1016/j.marenvres.2022.105573] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/16/2021] [Revised: 01/28/2022] [Accepted: 01/30/2022] [Indexed: 06/14/2023]
Abstract
Predators can influence prey through direct consumption as well as through non-consumptive effects (NCEs). NCEs usually occur mediated by behavioral changes in the prey upon detection of predator cues. Such changes may involve reduction of feeding with a variety of physiological consequences. We evaluated NCEs from an intertidal predatory snail (Acanthina monodon) on a dominant habitat-forming mussel species (Perumytilus purpuratus) from the southeastern Pacific coast. We tested whether A. monodon exerts negative NCEs on clearance rate, oxygen consumption rate, biodeposit production, and between-valve gap size in P. purpuratus. We found that waterborne predator cues triggered a decrease in these variables except biodeposit production. However, the organic content of the biodeposits increased in the presence of predator cues. The snail's physical contact with the mussels strengthened the negative NCEs on between-valve gap size. Since P. purpuratus is a dominant filter-feeder and foundation species in rocky intertidal habitats, predator NCEs on this species might indirectly influence ecosystem-level processes and community structure.
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Affiliation(s)
| | | | - Luis P Salas-Yanquin
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, 5090000, Valdivia, Chile
| | - Nelson Valdivia
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, 5090000, Valdivia, Chile; Centro FONDAP de Investigación de Dinámicas de Ecosistemas Marinos de Altas Latitudes (IDEAL), 5090000, Valdivia, Chile
| | - Alexis M Catalán
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, 5090000, Valdivia, Chile
| | - Ricardo A Scrosati
- Department of Biology, St. Francis Xavier University, Antigonish, Nova Scotia, B2G 2W5, Canada
| | - Oscar R Chaparro
- Instituto de Ciencias Marinas y Limnológicas, Universidad Austral de Chile, 5090000, Valdivia, Chile.
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