Clave para la identificación de los estadíos de desarrollo (inmaduros IV-V y adultos VI) de copépodos (Crustacea, Copepoda) del sector nerítico bonaerense y norpatagónico.
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Date
2017
Metadata
Show full item recordAlternative Title
Key to identify the development stages (immature IV-V and adults VI) of copepods (Crustacea, copepoda) from the Buenos Aires and Northpatagonian neritic sectorAbstract
In this work compilation is made of the descriptions provided by different authors about the ontogenetic changes that occur along the vital cycle of a group of planktonic copepods from Argentine Sea. The list includes 17 species common to the Buenos Aires and northpatagonian neritic sector, namely: calanoids Calanus simillimus, C. australis, Calanoides carinatus, Neocalanus tonsus, Eucalanus monachus, Paracalanus parvus, Ctenocalanus vanus, Clausocalanus brevipes, Drepanopus forcipatus, Centropages brachiatus, Acartia tonsa, Labidocera fluviatilis and Temora stylifera; ciclopoids Oithona nana and O. helgolandica and harpacticoids Euterpina acutifrons and Microsetella norvegica. The ontogenetic descriptions correspond to copepodids development stages IV and V and adults (VI) with specification of the differences between sexes. Stages previous to IV were not included since they do not have the fifth pair of legs, element of an essential diagnostic value. The information, based on morphological and meristic details of the abdomen and fifth pair of legs, is presented through an algorithm with drawings and photomicrographies trying to avoid, as far as possible, the need for a previous dissection.En el presente trabajo se recopilan las descripciones efectuadas por distintos autores sobre los cambios ontogenéticos que se producen durante el ciclo vital de un grupo de copépodos planctónicos del Mar Argentino. La nómina incluye 17 especies comunes al sector nerítico bonaerense y norpatagónico, a saber: los calanoideos Calanus simillimus, C. australis, Calanoides carinatus, Neocalanus tonsus, Eucalanus monachus, Paracalanus parvus, Ctenocalanus vanus, Clausocalanus brevipes, Drepanopus forcipatus, Centropages brachiatus, Acartia tonsa, Labidocera fluviatilis y Temora stylifera; los ciclopoideos Oithona nana y O. helgolandica y los harpacticoideos Euterpina acutifrons y Microsetella norvegica. Las descripciones ontogenéticas corresponden a las etapas de desarrollo IV y V y adultos (VI) de copepoditos con especificación de las diferencias entre sexos. No se incluyen los estadios previos al IV dado que no cuentan con el quinto par de patas, elemento de valor diagnóstico esencial. La información, basada en detalles morfológicos y merísticos del abdomen y quinto par de patas se presenta a través de un algoritmo con dibujos y fotomicrografías buscando evitar, en lo posible, la necesidad de una disección previa.
Journal
Revista de Investigación y Desarrollo PesqueroVolume
31Page Range
19-40Collections