caa a22 4500 605509336 CHVBK 20210128100640.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s10452-015-9547-y doi (NATIONALLICENCE)springer-10.1007/s10452-015-9547-y Growth and condition of larval rockfish in a Patagonian fjord-type inlet: role of hydrographic conditions and food availability [Elektronische Daten] [Mauricio Landaeta, Jorge Contreras, Claudia Bustos, Alejandro Pérez-Matus] A field experiment was conducted for 4 consecutive days in December 2010 in Hornopirén inlet, a fjord from Chilean Patagonia, in order to determine the impact of marked environmental differences on fish larval distribution and growth (i.e., otolith microstructure) of the rockfish Sebastes oculatus. Two layers were noticeable: a surface one (0-10m depth), characterized by warmer temperature and lower salinity, separated by a strong thermo- and halocline from the deep layer (>10m depth), with lower temperature and saltier waters. As a prey field, nauplii showed similar abundances between strata, but calanoid copepodites were more abundant below the thermocline. Larval S. oculatus were more abundant in the deep stratum. Temperature was negatively correlated with calanoid copepodites as well as with S. oculatus abundances. Larval density was positively correlated with copepodites but not with nauplii abundance. S. oculatus larvae from the surface layer grew faster (0.137±0.006mmday−1) than those collected below the thermocline (0.103±0.012mmday−1). Otolith size (radius) as well as the recent otolith growth index was similar in individuals collected from both water parcels; however, linear mixed-effects models indicate that microincrement widths were slightly wider in older larvae occurring above the thermocline. Conclusions are that water temperature was more important than food availability for larval fish growth and recent hydrographic conditions are affecting the growth trajectories of larval rockfish in a Chilean fjord. Springer Science+Business Media Dordrecht, 2015 Otolith nationallicence Growth trajectory nationallicence Sebastes oculatus nationallicence Size-at-age nationallicence Hatch date nationallicence Zooplankton nationallicence Landaeta Mauricio Laboratorio de Ictioplancton (LABITI), Escuela de Biología Marina, Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut Contreras Jorge Laboratorio de Ictioplancton (LABITI), Escuela de Biología Marina, Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut Bustos Claudia Laboratorio de Ictioplancton (LABITI), Escuela de Biología Marina, Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut Pérez-Matus Alejandro Subtidal Ecology Laboratory & Marine Conservation Center, Estación Costera de Investigaciones Marinas, Pontificia Universidad Católica de Chile, Casilla-D, Santiago, Chile aut Aquatic Ecology Springer Netherlands 49/4(2015-12-01), 573-584 1386-2588 49:4<573 2015 49 10452 https://doi.org/10.1007/s10452-015-9547-y text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10452-015-9547-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Landaeta Mauricio Laboratorio de Ictioplancton (LABITI), Escuela de Biología Marina, Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut NATIONALLICENCE 700 1- Contreras Jorge Laboratorio de Ictioplancton (LABITI), Escuela de Biología Marina, Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut NATIONALLICENCE 700 1- Bustos Claudia Laboratorio de Ictioplancton (LABITI), Escuela de Biología Marina, Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut NATIONALLICENCE 700 1- Pérez-Matus Alejandro Subtidal Ecology Laboratory & Marine Conservation Center, Estación Costera de Investigaciones Marinas, Pontificia Universidad Católica de Chile, Casilla-D, Santiago, Chile aut NATIONALLICENCE 773 0- Aquatic Ecology Springer Netherlands 49/4(2015-12-01), 573-584 1386-2588 49:4<573 2015 49 10452