Regresar

Resumen del producto

Sarmiento-Lezcano, A.N., G., Busquets-Vass, U., Rubio-Rodríguez, M.P., Olivar, M., Peña, I., Medina-Suárez, E., Rodríguez-González, J., Gómez-Gutiérrez, C.J., Robinson & S., Hernández-León (2022). Active flux seasonality of the small dominant migratory crustaceans and mesopelagic fishes in the Gulf of California during June and October. Enrique Curchitser (Eds.), Progress in Oceanography. 208: 102894. DOI: 10.1016/j.pocean.2022.102894.

Active flux seasonality of the small dominant migratory crustaceans and mesopelagic fishes in the Gulf of California during June and October

Airam N. Sarmiento-Lezcano 1, Geraldine Busquets-Vass 2, Uriel Rubio-Rodríguez, M. Pilar Olivar 3, Marian Peña 4, Ione Medina-Suárez 5, Eduardo Rodríguez-González 2, Jaime Gómez-Gutiérrez 6, Carlos J. Robinson 7 y Santiago Hernández-León 5

1 Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria, Unidad Asociada ULPGC-CSIC, Campus de Taliarte, 35214 Telde, Gran Canaria, Canary Islands, Spain
2 Centro de Investigación Científica y de Educación Superior de Ensenada, Unidad La Paz, 23050 La Paz, BCS, Mexico
3 Institut de Ciencies del Mar-CSIC, Passeig Marítim 37-49, Barcelona 08003, Spain
4 Centro Oceanográfico de Baleares (IEO, CSIC), Muelle de Poniente s/n. Apdo. 291. 07015 Palma de Mallorca, Spain
5 Instituto de Oceanografía y Cambio Global, IOCAG, Universidad de Las Palmas de Gran Canaria, Unidad Asociada ULPGC-CSIC, Campus de Taliarte, Gran Canaria, Canary Islands, Spain
6 Instituto Politécnico Nacional, Centro Interdisciplinario de Ciencias Marinas
7 Centro de Investigaci ón Científica y Educaci ón Superior de Ensenada, Unidad UT3, Nayarit, Mexico

The biological carbon pump is the process that transports carbon vertically out of the mixed layer in the ocean.Besides the sinking flux of organic particles, active flux due to the daily vertical migration of zooplankton andmicronekton promotes a significant carbon transport not fully accounted for or understood in the world’s oceans.The diversity and abundance of epipelagic and mesopelagic species in the Gulf of California has been extensivelystudied, but the role of micronekton in carbon export has not yet been investigated. We studied the carbon fluxpromoted by juvenile and adult mesopelagic fishes and crustaceans (Decapoda and Euphausiidae) during thetransition from the cold to warm period (June) and the onset of the warm season (October) in 2018. We providethe first estimation of migrant biomass and respiratory flux of the most abundant migratory species of meso-pelagic fishes, decapods and euphausiids in the Gulf of California. The micronekton species collected accountedfor a large biomass of mesopelagic fishes and pelagic crustaceans. The average migrant biomass estimates were151.5 ± 101.2 mg C·m- 2 during June and 90.9 ± 75.3 mg C·m- 2 during October. The enzymatic activity of theelectron transfer system (ETS) was measured as an estimate of their respiratory rates. Average specific ETSactivity was significantly different between fishes and decapods, and between fishes and euphausiids (p < 0.05).The respiratory flux of fishes was predominant in the Gulf of California, followed by pelagic decapods and eu-phausiids. Seasonal changes in respiratory flux were observed for fishes (June: 6.1 ± 1.5 mg C·m- 2·d- 1; October:3.2 ± 1.8 mg C·m- 2·d- 1) and decapods (June: 0.4 mg C·m- 2·d- 1; October: 0.7 ± 0.05 mg C·m- 2·d- 1). Respi-ratory flux estimation by crustaceans (decapods and euphausiids) and fishes together was 6.86 mg C·m- 2·d- 1during June, and 4.21 mg C·m- 2·d- 1 during October 2018, suggesting a functional role of this large micro-nektonic fauna in the biological carbon export in this region.

Palabras clave: Active flux; Biological carbon pump; Diel vertical migration; Electron Transfer System; Mesopelagic organisms

Para obtener una copia del documento contacta la personal de la biblioteca a través del correo bibliocicimar{a}ipn.mx

Regresar