Reappearance and seasonality of Phyllorhiza punctata von Lendenfeld (Cnidaria, Scyphozoa, Rhizostomeae) medusae in southern Brazil
نویسندگان
چکیده
منابع مشابه
First record of Phyllorhiza punctata von Lendenfeld, 1884 (Scyphozoa: Rhizostomeae: Mastigiidae) from Turkey
The Australian spotted jellyfish Phyllorhiza punctata has been reported from several locations in the Mediterranean, but the present report is the first record from Turkish waters. Juveniles of the Erythrean alien shrimp scad, Alepes djedaba, were observed nestling among its tentacles. Possible vectors are mentioned.
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Polyps of Aurelia aurita can transform into several medusae (jellyfish) in a process of sequential subdivision. During this transformation, two processes take place which are well known to play a key role in the formation of various higher metazoa: segmentation and metamorphosis. In order to compare these processes in bilaterians and cnidarians we studied the control and the kinetics of these p...
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Catostylus mosaicus (Quoy & Gaimard, 1824) is a rhizostome jellyfish endemic to eastern Australia. Originally described from Port Jackson (Sydney) in New South Wales (Quoy & Gaimard, 1824), the species is thought to range from Port Phillip (Melbourne) in Victoria to the Torres Strait (Kramp, 1965; Southcott, 1982), i.e. across three biogeographic boundaries. Given recent reports of multiple cry...
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Metacercaria specimens of the genus Opechona (Trematoda: Digenea: Lepocreadiidae) are described parasitizing “coelenterates” (scyphomedusae and ctenophores) from Southeastern Brazil (São Paulo state). The worms are compared to other Opechona species occurring on the Brazilian coast, but no association has been made because only adult forms of these species have been described. Suppositions as t...
متن کاملLife Cycle Reversal in Aurelia sp.1 (Cnidaria, Scyphozoa)
The genus Aurelia is one of the major contributors to jellyfish blooms in coastal waters, possibly due in part to hydroclimatic and anthropogenic causes, as well as their highly adaptive reproductive traits. Despite the wide plasticity of cnidarian life cycles, especially those recognized in certain Hydroza species, the known modifications of Aurelia life history were mostly restricted to its p...
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ژورنال
عنوان ژورنال: Revista Brasileira de Zoologia
سال: 2006
ISSN: 0101-8175
DOI: 10.1590/s0101-81752006000300030