Contrasting patterns in the vertical distribution of decapod crustaceans throughout ontogeny
| Autor: | Manuel Hidalgo, Patricia Reglero, Francisco Alemany, Enric Massutí, Pere Abelló, Antonina Dos Santos, Asvin P. Torres, Daniela S. Simão |
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| Přispěvatelé: | European Commission, Govern de les Illes Balears, Molinero, J.C. (Juan Carlos) |
| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
010504 meteorology & atmospheric sciences biology Mesopelagic zone Ecology 010604 marine biology & hydrobiology Ontogeny Pelagic zone Aquatic Science Mediterranean biology.organism_classification 01 natural sciences Crustacean Centro Oceanográfico de Baleares Water column Mediterranean sea Larvae Diel vertical distribution Marine ecosystem Medio Marino Hydrography Shrimps 0105 earth and related environmental sciences |
| Zdroj: | Digital.CSIC. Repositorio Institucional del CSIC instname e-IEO: Repositorio Institucional Digital de Acceso Abierto del Instituto Español de Oceanografía Instituto Español de Oceanografía e-IEO. Repositorio Institucional Digital de Acceso Abierto del Instituto Español de Oceanografía |
| Popis: | 16 pages, 5 figures, 2 tables In marine ecosystems, the most significant migration observed in terms of biomass distribution is the one connected with the vertical movements in the water column. In the present study, the vertical profiles of the mesopelagic shrimps Gennadas elegans, Eusergestes arcticus, Sergia robusta, and the epipelagic Parasergestes vigilax in the Balearic Sea (western Mediterranean), during the stratified (summer) and non-stratified (autumn) hydrographic conditions, were investigated through their ontogeny, from the larval to adult stages. The mesopelagic adults were observed to move down to the deeper layers during the night more than during the daylight hours. Most larvae aggregated within the limits of the upper water column. The P. vigilax larvae were collected only during the stratified period. The first two larval stages vertical distribution indicates that the mesopelagic crustacean spawning could occur at greater depths. During the non-stratified period, the larvae of the mesopelagic species tended to remain at about 500 m depth at night, rising towards the upper layers at sunrise. Vertical patterns are discussed, as strategies associated with predator–prey trade-offs. To our knowledge, the present study is the first such attempt to jointly analyze the vertical migrations of the developmental stages of the pelagic shrimps in the Mediterranean Sea The research was performed within the framework of the IDEADOS (CTM2008-04489-C03-01) project, funded by the National Plan I + D+i. A. P. Torres and M. Hidalgo were funded by a pre-doctoral FPI Fellowship and a post-doctoral contract, respectively, bestowed by the regional government of the Balearic Islands, Conselleria d’Educació, Cultura i Universitats, and selected as part of an operational program co-financed by the European Social Fund |
| Databáze: | OpenAIRE |
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