Thus, the knowledge, not only about plankton biodiversity, but also on the patterns of biogeographic distribution of several species is limited.Īppendicularians are one of the most common groups in zooplankton samples, widely distributed in all oceans ( Esnal 1981).
In spite of the valuable contributions made in past decades, there are several deficiencies in the taxonomy of groups, such as the appendicularians, polychaetes and microcrustaceans (amphipods, ostracods and cladocerans). The marine zooplankton of Chilean waters poses a wide perspective of study, because of the persistent lack of taxonomic knowledge of several groups that constitute this community. The primary production is channeled through the trophic web, sustaining the high production in waters off the northern coast of Chile and southern Peru. Among them, the Humboldt Current System is considered as one of the most productive of the world ( Barber & Chávez 1983). The southeast margins of the ocean are zones of high marine productivity because of oceanographic conditions associated with cold currents flowing parallel to the coast ( Cushing 1969, Barber et al. Palabras clave: Apendicularia, larváceos, taxonomía, nuevos registros, norte de Chile. venusta (4,1 %), mientras que las ocho especies restantes constituyeron el 8,6 % del total de apendicularias colectadas. gracilis (10,4 %), Fritillaria pellucida typica (6,7 %) O. Las especies más abundantes fueron Oikopleura longicauda (56,1 %), O.
Todas las especies identificadas se registran por primera vez para aguas del norte de Chile y se amplía su distribución en esta área del Pacífico Suroriental. gracilis and Megalocercus abyssorum) y Fritillariidae ( Fritillaria pellucida typica, F. Se identificaron 15 especies de apendicularias pertenecientes a las familias Oikopleuridae ( Oikopleura longicauda, O. Key words: Appendicularia, larvaceans, taxonomy, new record, northern Chile.Įl presente trabajo proporciona una primera descripción taxonómica de las apendicularias colectadas durante septiembre y agosto de 1995 en la costa norte de Chile (18✢3'-31✠0' S). venusta (4.1 %), whereas the eight remaining species, constituted 8.6 % of the total appendicularians collected. gracilis (10.4 %), Fritillaria pellucida typica (6.7 %) O. The most abundant species were Oikopleura longicauda (56.1 %), O. All the species are first records for waters of northern Chile, thus broadening their previous distribution in the southeast Pacific. gracilis and Megalocercus abyssorum), and Fritillariidae (Fritillaria pellucida typica, F. They belong to the families Oikopleuridae ( Oikopleura longicauda, O. La zona norte de Chile (Tunicata, Appendicularia)Įscuela de Ciencias del Mar, Universidad Católica de Valparaíso, Casilla 1020 Valparaíso, Chile Į-mail: 1 2 work provides a first taxonomic description of appendicularians collected during September and August of 1995 in the north coast of Chile (18✢3'-31✠0' S). Waters off northern Chile (Tunicata, Appendicularia) Identificación taxonómica de las apendicularias capturadas en aguas epipelágicas de
Travellers returning from malarious areas should seek prompt medical advice if they develop a fever during travel or on their return, ensuring they highlight their potential exposure to malaria.įurther advice and information on malaria is available on the TRAVAX (for health professionals) and fitfortravel (for the general public) websites.Taxonomic identification of appendicularians collected in the epipelagic
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