caa a22 4500 605509131 CHVBK 20210128100639.0 cr unu---uuuuu 210128e20150301xx s 000 0 eng 10.1007/s10452-015-9507-6 doi (NATIONALLICENCE)springer-10.1007/s10452-015-9507-6 Is ectoparasite burden related to host density? Evidence from nearshore fish larvae off the coast of central Chile [Elektronische Daten] [Pamela Palacios-Fuentes, Mauricio Landaeta, María González, Guido Plaza, F. Ojeda, Gabriela Muñoz] Variations in parasite populations may be temporal and/or spatial and can occur in relation to environmental factors. However, such changes may also occur due to differences in host population density, which is one of the main factors that affect the abundance of directly transmitted parasites. Fish larvae and their ectoparasites were collected via ichthyoplankton samplings during a 3-year survey near the coast of central Chile. To estimate the variations in ectoparasite abundance that occurred with fluctuations in host density, the prevalence and intensity of ectoparasites (copepods and isopods) were calculated and compared with the density (i.e., the larval fish abundance standardized to 1,000m−3) of six species of nearshore fish larvae that belonged to the families Gobiesocidae, Labrisomidae and Tripterygiidae. Copepods (Penellidae and Caligidae) and isopods (Cryptoniscidae) were found to be parasitizing the fish larvae. Pennellid copepods were the most prevalent ectoparasite, and the clingfish Gobiesox marmoratus (Gobiesocidae) was the most parasitized fish species (12.81%). The individual burdens of pennellid, caligid and isopod ectoparasites failed to exhibit any correlation with the larval densities of four fish species (i.e., Auchenionchus crinitus, Auchenionchus microcirrhis, Sicyases sanguineus and Helcogrammoides chilensis). Nonetheless, the prevalence and intensity of the pennellid copepods exhibited a significant and positive correlation with the density of a gobisesocid species. In contrast, the prevalence of pennellid copepods (5.10%) exhibited a significant but negative correlation with the density of tripterygid fish. Ectoparasite abundance is a result of a species-specific relationship with their hosts, but the evidence found suggests no correlation between ectoparasite burden and host density in larval fishes from coastal environments. Springer Science+Business Media Dordrecht, 2015 Host density nationallicence Tripterygiidae nationallicence Gobiesocidae nationallicence Prevalence nationallicence Pennellidae nationallicence Caligidae nationallicence Palacios-Fuentes Pamela Laboratorio de Ictioplancton (LABITI), Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut Landaeta Mauricio Laboratorio de Ictioplancton (LABITI), Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut González María Instituto de Ciencias Naturales "Alexander von Humboldt”, Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile aut Plaza Guido Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile aut Ojeda F. Departamento de Ecología, Pontificia Universidad Católica de Chile, Santiago de Chile, Chile aut Muñoz Gabriela Laboratorio de Parasitología Marina, Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Viña del Mar, Chile aut Aquatic Ecology Springer Netherlands 49/1(2015-03-01), 91-98 1386-2588 49:1<91 2015 49 10452 https://doi.org/10.1007/s10452-015-9507-6 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 brief-communication jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10452-015-9507-6 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Palacios-Fuentes Pamela Laboratorio de Ictioplancton (LABITI), Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut NATIONALLICENCE 700 1- Landaeta Mauricio Laboratorio de Ictioplancton (LABITI), Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Avenida Borgoño 16344, Reñaca, Viña del Mar, Chile aut NATIONALLICENCE 700 1- González María Instituto de Ciencias Naturales "Alexander von Humboldt”, Facultad de Ciencias del Mar y Recursos Biológicos, Universidad de Antofagasta, Antofagasta, Chile aut NATIONALLICENCE 700 1- Plaza Guido Escuela de Ciencias del Mar, Facultad de Recursos Naturales, Pontificia Universidad Católica de Valparaíso, Valparaíso, Chile aut NATIONALLICENCE 700 1- Ojeda F. Departamento de Ecología, Pontificia Universidad Católica de Chile, Santiago de Chile, Chile aut NATIONALLICENCE 700 1- Muñoz Gabriela Laboratorio de Parasitología Marina, Facultad de Ciencias del Mar y de Recursos Naturales, Universidad de Valparaíso, Viña del Mar, Chile aut NATIONALLICENCE 773 0- Aquatic Ecology Springer Netherlands 49/1(2015-03-01), 91-98 1386-2588 49:1<91 2015 49 10452