This is an individual case report on envenoming caused by the cnidarian Portuguese man-of-war. The reported local reactions and the clinical symptoms are similar to those already known for Portuguese man-of-war envenoming. As far as we know it is the first clinical case documented for the Brazilian shores.
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http://dx.doi.org/10.1016/0041-0101(95)00027-j | DOI Listing |
Biodivers Data J
January 2025
University of Córdoba, Faculty of Basic Sciences, Department of Biology, Natural Products Chemistry Research Group (PRONAT), Montería, Colombia University of Córdoba, Faculty of Basic Sciences, Department of Biology, Natural Products Chemistry Research Group (PRONAT) Montería Colombia.
Background: Hydromedusae are a group of planktonic cnidarians that represent the medusoid phase in the life cycle of most members of the class Hydrozoa, whose primary function is to produce and release gametes. These organisms are generally small and translucent, with slight pigmentation, except for those that inhabit great depths and exhibit the typical body shape of a jellyfish. In Colombia, studies on this group are limited due to the scarcity of updated taxonomic information and the small number of expert scientists.
View Article and Find Full Text PDFBiology (Basel)
January 2025
Departamento de Sistemática y Ecología Acuática, El Colegio de la Frontera Sur (ECOSUR), Av. Centenario km 5.5, Pacto Obrero, Chetumal 77014, Quintana Roo, Mexico.
This study provides a detailed analysis of the community of hydrozoan epibionts of in La Paz Bay, Baja California Sur. The investigation was carried out in two season periods, corresponding to the warm and cold seasons on the pier of the Autonomous University of Baja California Sur (UABCS) Pichilingue research station. The percentage of epibiont coverage was calculated and analyzed.
View Article and Find Full Text PDFMar Drugs
January 2025
A.V. Zhirmunsky National Scientific Center of Marine Biology, Far Eastern Branch, Russian Academy of Sciences, ul. Palchevskogo 17, Vladivostok 690041, Russia.
The phylum Cnidaria comprises five main classes-Hydrozoa, Scyphozoa, Hexacorallia, Octocorallia and Cubozoa-that include such widely distributed and well-known animals as hard and soft corals, sea anemones, sea pens, gorgonians, hydroids, and jellyfish. Cnidarians play a very important role in marine ecosystems. The composition of their fatty acids (FAs) depends on food (plankton and particulate organic matter), symbiotic photosynthetic dinoflagellates and bacteria, and de novo biosynthesis in host tissues.
View Article and Find Full Text PDFSci Adv
January 2025
Department of Biochemistry, Université de Genève, CH-1211 Genève, Switzerland.
regenerates one head when cut, but how forces shaping the head are coordinated remains unclear. Soft compression of 's head-regenerating tissues induces the formation of viable, two-headed animals. Compression creates new topological defects in the supracellular orientational order of muscular actin fibers, associated with additional heads.
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January 2025
Department of Zoology, Institute of Biosciences, University of São Paulo, São Paulo, Brazil.
The taxonomic complexity of the families Clathrozoidae and Clathrozoellidae, rooted in early 20th-century hydroid descriptions, highlights the need for comprehensive and detailed morphological analyses. This study aimed to elucidate the histology of the polypoid stage of Peña Cantero, Vervoort & Watson, 2003, with a particular emphasis on its exoskeletal structure. Specimens from the National Museum of Natural History were examined histologically using different staining techniques.
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