دورية أكاديمية
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Impacts of a newly formed lava delta on the marine environment: Lava-induced upwelling and abrupt chlorophyll depletion during the Tajogaite eruption (La Palma, 2021).

التفاصيل البيبلوغرافية
العنوان: Impacts of a newly formed lava delta on the marine environment: Lava-induced upwelling and abrupt chlorophyll depletion during the Tajogaite eruption (La Palma, 2021).
المؤلفون: González-Vega A; Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 38180 Santa Cruz de Tenerife, Spain., Martín-Díaz JP; Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 38180 Santa Cruz de Tenerife, Spain; Universidad de La Laguna (ULL), 38200 San Cristóbal de La Laguna, Spain., Vázquez JT; Centro Oceanográfico de Málaga, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 29002 Málaga, Spain., Gómez-Ballesteros M; Servicios Centrales Madrid, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 28002 Madrid, Spain., Sánchez-Guillamón O; Centro Oceanográfico de Málaga, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 29002 Málaga, Spain., Lozano Rodríguez JA; Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 38180 Santa Cruz de Tenerife, Spain., Arrieta JM; Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 38180 Santa Cruz de Tenerife, Spain., Ferrera I; Centro Oceanográfico de Málaga, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 29002 Málaga, Spain., Huertas IE; Instituto de Ciencias Marinas de Andalucía, Consejo Superior de Investigaciones Científicas (ICMAN-CSIC), 11519 Puerto Real, Cádiz, Spain., Tovar-Sánchez A; Instituto de Ciencias Marinas de Andalucía, Consejo Superior de Investigaciones Científicas (ICMAN-CSIC), 11519 Puerto Real, Cádiz, Spain., Presas-Navarro C; Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 38180 Santa Cruz de Tenerife, Spain., Fraile-Nuez E; Centro Oceanográfico de Canarias, Instituto Español de Oceanografía, Consejo Superior de Investigaciones Científicas (IEO-CSIC), 38180 Santa Cruz de Tenerife, Spain. Electronic address: eugenio.fraile@ieo.csic.es.
المصدر: The Science of the total environment [Sci Total Environ] 2024 Sep 20; Vol. 944, pp. 173915. Date of Electronic Publication: 2024 Jun 11.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Elsevier Country of Publication: Netherlands NLM ID: 0330500 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1879-1026 (Electronic) Linking ISSN: 00489697 NLM ISO Abbreviation: Sci Total Environ Subsets: MEDLINE
أسماء مطبوعة: Original Publication: Amsterdam, Elsevier.
مواضيع طبية MeSH: Seawater*/chemistry , Chlorophyll*/analysis, Spain ; Environmental Monitoring ; Volcanic Eruptions ; Chlorophyll A ; Salinity ; Phytoplankton
مستخلص: The 2021 Tajogaite eruption in La Palma (Canary Islands, Spain) emitted vast volumes of lava during 85 days, which reached the ocean in several occasions at the western flank of the island. Most of these flows merged to create a primary lava delta, covering an area of 48 ha, with an additional 30 ha underwater. Here we characterize the effects of the lava-seawater interaction on the surrounding marine environment. The area was sampled during two multidisciplinary oceanographic cruises: the first one comprised the days before the lava reached the ocean and after the first contact; and the second took place a month later, when the lava delta was already formed but still receiving lava inputs. Physical-chemical anomalies were found in the whole water column at different depths up to 300 m in all measured parameters, such as turbidity (+9 NTU), dissolved oxygen concentration (-17.17 μmol kg -1 ), pH T25 (-0.1), and chlorophyll-a concentration (-0.33 mg m -3 ). Surface temperature increased up to +2.3 °C (28.5 °C) and surface salinity showed increases and decreases of -1.01 and +0.70, respectively, in a radius of 4 km around the lava delta. In the water column, the heated waters experimented a lava-induced upwelling, bringing deeper, nutrient-rich waters to shallower depths; however, this feature did not trigger any phytoplankton bloom. In fact, integrated chlorophyll-a showed an abrupt decrease of -41 % in just two days and -69 % a month later, compared to prior conditions. The chlorophyll-a depletion reached a distance larger than 2.5 km (not delimited).
Competing Interests: Declaration of competing interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2024 The Authors. Published by Elsevier B.V. All rights reserved.)
فهرسة مساهمة: Keywords: Chlorophyll-a; La Palma eruption; Lava delta; Lava-seawater interaction; Upwelling
المشرفين على المادة: 1406-65-1 (Chlorophyll)
YF5Q9EJC8Y (Chlorophyll A)
تواريخ الأحداث: Date Created: 20240613 Date Completed: 20240625 Latest Revision: 20240625
رمز التحديث: 20240625
DOI: 10.1016/j.scitotenv.2024.173915
PMID: 38871328
قاعدة البيانات: MEDLINE
الوصف
تدمد:1879-1026
DOI:10.1016/j.scitotenv.2024.173915