Please use this identifier to cite or link to this item:
DC FieldValueLanguage
dc.contributor.authorAriza, Alejandro V.en_US
dc.contributor.authorAguilar, Natachaen_US
dc.contributor.authorHernández-León, Santiagoen_US
dc.description.abstractDiel Vertical Migrants (DVMs) are mainly zooplankton and micronekton which migrate upward from 400-500 m depth every night to feed on the productive epipelagic zone, coming back at dawn to the mesopelagic zone, where they defecate, excrete, and respire the ingested carbon. DVMs should contribute to the biological pump in the ocean and, accordingly, to the global CO2 balance. Although those migrants are mainly small fishes, cephalopods and crustaceans, the lanternfishes (myctophidae) usually contribute up to 80% of total DVMs biomass. Thus, myctophids may represent a pathway accounting for a substantial export of organic carbon to the deep ocean. However, the magnitude of this transport is still poorly known. In order to assess this active flux of carbon, we performed a preliminary study of mesopelagic organisms around the Canary Islands. Here we present the results of diet, daily rations and feeding chronology of Lobianchia dofleini, Hygophum hygomii and Ceratoscopelus maderensis, 3 dominant species of myctophids performing diel vertical migrations in the Subtropical Eastern North Atlantic Ocean. Samples were obtained on board the RV La Bocaina during June 2009. Myctophids were sorted and fixed in 4% buffered formalin and the stomach contents of target species were examined and weighted. Feeding chronology was approached by studying stomach fullness and state of digestion of prey items in individuals from hauls performed at different times and depths. Our results provide further information about lanternfishes feeding ecology in relation to their vertical migration patterns as well as their contribution to the biological carbon pump.en_US
dc.source5th International Zooplankton Production Symposium (Pucón, Chile), 13-18 Marzo 2011en_US
dc.subject240106 Ecología animalen_US
dc.subject.otherDaily rationen_US
dc.subject.otherFeeding chronologyen_US
dc.subject.otherCarbon fluxen_US
dc.titleDaily ration and feeding chronology of dominant diel vertical migrant fishes in the Subtropical Eastern North Atlantic Oceanen_US
dc.typeConference posteren_US
dc.type2Póster de congresosen_US
item.fulltextCon texto completo-
item.grantfulltextopen- IOCAG: Oceanografía Biológica y Cambio Global- de Oceanografía y Cambio Global- de Biología- de Oceanografía y Cambio Global-ández León, Santiago Manuel-
Appears in Collections:Póster de congreso
Adobe PDF (4,65 MB)
Show simple item record

Page view(s)

checked on Sep 16, 2023


checked on Sep 16, 2023

Google ScholarTM



Export metadata

This item is licensed under a Creative Commons License Creative Commons