0000000000778237
AUTHOR
Wolf Isbert
Ophichthids (Ophichthidae: Anguilliformes) within the body cavity of marine fishes: pseudoparasites?
4 pages, 2 figures, 1 table
Metazoan parasite communities and diet of the velvet belly lantern shark Etmopterus spinax (Squaliformes: Etmopteridae): a comparison of two deep-sea ecosystems
By combining an examination of stomach contents yielding a snapshot of the most recent trophic niche and the structure of parasite communities reflecting a long-term feeding niche, this study aimed at gaining more comprehensive information on the role of the small-sized deep-water velvet belly lantern shark Etmopterus spinax in the local food webs of the Galicia Bank and the canyon and valley system of the Aviles Canyon, which have been both proposed for inclusion in the Natura 2000 network of protected areas. As far as is known, this study provides the first comparative parasite infracommunity data for a deep-sea shark species. Component parasite communities in E. spinax were relatively ri…
Parasite fauna and community structure of bathydemersal fishes: Notacanthus bonaparte (Osteichthyes), Etmopterus spinax and Deania profundorum (Chondrichthyes)
Resumen El mar profundo es el mayor bioma de la tierra y el menos estudiado (Ramirez-Llodra et al. 2010). Si bien inicialmente el mar profundo se consideró como un ambiente muy estable con variaciones muy leves por debajo de la termoclina permanente, los estudios realizados en las últimas décadas indican que el mar profundo es un ambiente más dinámico de lo que se pensaba (Gage 2003, Ramirez-Llodra et al. 2010). La variabilidad natural de los procesos que tiene lugar en los hábitats del mar profundo tiene su origen en diferentes factores entre los que se encuentran las corrientes horizontales de masas de agua de grandes dimensiones dirigidas por las corrientes circunglobales, las cuales pue…
Seasonal and depth related variation of parasite communities of Notacanthus bonaparte Risso, 1840 (Notacanthiformes: Notacanthidae) over the northwest Mediterranean slope
Abstract In the last decades fishing activities have spread from coastal to deeper waters with serious effects on the deep-sea ecosystems and its fauna, which are considered to be highly susceptible to these impacts. The implementation of protection measures is necessary, but the knowledge on this biome is scant, and often limited to species of commercial value. To the best of our knowledge, this study is the first survey to describe and analyse parasite infracommunities of the deep-sea fish Notacanthus bonaparte sampled from three bathymetric strata between the upper and lower slope in the western Mediterranean Sea (Balearic Sea, Spain). The aim of this work was to assess the effect of hos…