Relevant bibliographies by topics / Physalia Jellyfishes

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Academic literature on the topic 'Physalia Jellyfishes'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Physalia Jellyfishes"

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Mujiono, Nova. "Jellyfish Sting: Sebuah studi Kasus Indonesia [Jellyfish Sting : An Indonesian Case Report]." Jurnal Ilmiah Perikanan dan Kelautan 2, no. 1 (January 25, 2019): 1. http://dx.doi.org/10.20473/jipk.v2i1.11673.

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AbstractJellyfish sting cases are reported between the years 2005 to 2009 from Indonesian waters. Three fatal cases occurred in Jebus and Situbondo in 2008 which predicted to be caused by Chrysaora quinquecirrha and Physalia physalis. Another species, Physalia utriculus is causing no fatality. Seasonality, treatment of the injury and prevention from the sting also discussed.
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Firdaus, Mochamad Ramdhan. "ASPEK BIOLOGI UBUR-UBUR API, Physalia physalis (LINNAEUS, 1758)." OSEANA 45, no. 2 (October 27, 2020): 50–68. http://dx.doi.org/10.14203/oseana.2020.vol.45no.2.94.

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Physalia physalis is one of the jellyfish believed to be responsible for a significant proportion of jellyfish attack cases in the world. As one of the most dangerous members of the Cnidarian in the sea, P. physalis has a sting that can paralyze their prey. To humans, the sting can cause cardiotoxic, neurotoxic, musculartoxic, and hemolytic effects. P. physalis has different biological characteristics than most organisms. For example, an individual of P. physalis actually is a colony consisting of four groups of individuals who have different structures and functions. The arrangement of the colony has a complex structure and shows a polymorphism. P. physalis is a pleustonic organism because they live on the surface of the water. P. physalis still leaves many mysteries to scientists. For example, the life cycle of a P. physalis is not yet fully known. Besides, the diversity of P. physalis also still leaves questions among scientists. Some believe that P. physalis is monotypic, while others suspect there is cryptic diversity. Therefore, the study of P. physalis is very interesting, especially under the issue of climate change. Many scientists believe that jellyfish get benefit from increasing sea temperatures, so the population is predicted to increase. The high population of P. physalis threatens the sustainability of fish stocks in the ocean, mainly due to P. physalis are productive predators of fish larvae. This paper aims to provide information on the biological aspects of P. physalis, which are still limited in Indonesia.
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De La Cruz -Francisco, Vicencio, and Liliana Flores -Galicia. "PRIMEROS REGISTROS DE MEDUSAS (CUBOZOA, SCYPHOZOA), SIFONÓFOROS (HYDROZOA) Y CTENÓFOROS (TENTACULATA) DEL SISTEMA ARRECIFAL LOBOS-TUXPAN, MÉXICO." CICIMAR Oceánides 33, no. 1 (April 18, 2018): 33. http://dx.doi.org/10.37543/oceanides.v33i1.222.

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RESUMEN. Medusas, sifonóforos y ctenóforos son organismos ecológicamente importantes por su papel como depredadores voraces en la cadena trófica, ya que en altas densidades ocasionan problemas económicos. En las costas mexicanas del Golfo de México existe conocimiento de la riqueza taxonómica de estos animales macrozooplanctónicos, pero aún se desconoce qué especies se encuentran en los arrecifes coralinos del norte de Veracruz. Este estudio presenta los primeros registros de este grupo para el Sistema Arrecifal Lobos-Tuxpan. Se identificaron tres especies de medusas, un sifonóforo y dos especies de ctenóforos a partir de registros fotográficos obtenidos en los arrecifes Tuxpan, Enmedio, Tanhuijo, Oro Verde y Lobos. El taxón Cyanea sp. se registra por primera vez para el suroeste del Golfo de México y Cestum veneris es nuevo registro para el litoral veracruzano. Las especies Aurelia aurita (medusa), Physalia physalis (sifonóforo) y Mnemiopsis leidyi (ctenóforo) se observaron en la mayoría de los arrecifes estudiados. La información aquí presentada puede ser útil para el sector turístico al evitar las medusas y sifonóforos que son tóxicos.First records of jellyfish (Cubozoa, Scyphozoa), Siphonophores (Hydrozoa), and Ctenophores (Tentaculata) of the Lobos-Tuxpan Reef System, MexicoABSTRACT. Jellyfish, siphonophores and ctenophores are ecologically important organisms due to their role as voracious predators in the trophic chain, which in high densities may cause economic problems. There is knowledge of the taxonomic wealth of these macrozooplanktonic animals in the Mexican coasts of the Gulf of Mexico, but it is still unknown what species are found in the coral reefs from the north of Veracruz. This study presents the first records of this group for the Lobos-Tuxpan Reef System. Three species of jellyfish, one siphonophore and two ctenophores, were identified through photographic records belonging to the Tuxpan, Enmedio, Tanhuijo, Oro Verde and Lobos reefs. For the first time, the species Cyanea sp. for the South-West of the Gulf of Mexico and Cestum veneris for the Veracruz coast are recorded. The species Aurelia aurita (jellyfish), Physalia physalis (siphonophore) and Mnemiopsis leidyi (ctenephore) were observed in most of the studied reefs. The information provided here may be useful in the tourist sector to avoid toxic jellyfish and siphonophores.
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Dellanna, Leandro, Frank Hirche, and Vasile Capra. "Successful Treatment of Recurrent Dermatitis after Physalia physalis (Portuguese Man O’ War) Envenomation with Extracorporeal Shock Wave Therapy." Case Reports in Dermatology 13, no. 1 (April 7, 2021): 202–8. http://dx.doi.org/10.1159/000513367.

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For more than 3 decades, extracorporeal shock wave therapy (ESWT) has been clinically implemented in urologic and orthopaedic indications. Here, we present the case of a patient with envenomation from a highly toxic jellyfish-like siphonophore (<i>Physalia physalis</i>) with a toxic contact dermatitis resulting in chronic eruptive skin lesions. The skin lesions on the dorsal right hand lasted more than 16 weeks and were refractive to local cortisone treatment. They finally healed after 8 applications of low-energy planar/defocused ESWT over 4 weeks. In detail, the clinical course, ESWT specifications and the possible mechanisms of ESWT in the light of the current literature are discussed. Our case indicates that ESWT is an underestimated, promising non-invasive, non-immunosuppressive treatment for chronic eruptive skin lesions after jellyfish or related toxin envenomations.
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Winasis, Sarwendah Siswi, Al Munawir, and Adelia Handoko. "Potential of Cocoa Ethanol Extract Toward Nematocyst Tubul Firing Inhibition of Physalia Utriculus Toxin In Vitro." Journal of Agromedicine and Medical Sciences 5, no. 2 (July 1, 2019): 30. http://dx.doi.org/10.19184/ams.v5i2.9623.

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There was estimated 150 million envenomation cases due to jellyfish stings occur globally every year. 100 from 10,000 jellyfish species in the world known to be dangerous, one them is Physalia utriculus. The aim of this study was to determine the potential of cocoa (Theobroma cacao L.) ethanol extract toward nematocyst tubul firing inhibition of jellyfish (Physalia utriculus) toxin in vitro. The method was true experimental design with post test only control group design. The study divided into 8 groups: 1 normal control, 1 positive control, 1 negative control, and 5 treatments grups by giving cocoa ethanol extract with concentration 20%, 2%, 0.2%, 0.02%, 0.002%. The observation was made by calculating the percentage number of firing nematocysts. The result showed average percentage of firing nematocyst in the normal control group was 42.50 ± 3.18, positive control group was 37.97 ± 5.57, negative control group was 52.44 ± 2.98, and treatment group which given with cocoa ethanol extract 20%, 2%, 0.2%, 0.02%, 0.002% were 48.24 ± 5.37; 40.62 ± 7.10; 29.45 ± 5.39; 37.60 ± 9.78; 41.11 ± 3.92, respectively. The One Way Annova statistical results test show significance value 0.001 (p≤0.05). The conclusion of this study was the cocoa ethanol extract with concentration 0.2% has most potential to inhibit the jellyfish (P. utriculus) nematocyst tubule firing in vitro. Keywords: Physalia utriculus, cocoa, toxin, jellyfish
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Intansari, Adinningtyas, Al Munawir, and Laksmi Indreswari. "Potential of Cocoa Extract (Theobroma cacao) in Inhibiting Erythrocyte Damage Induced by Physalia utriculus Venom." Journal of Agromedicine and Medical Sciences 6, no. 3 (February 12, 2020): 157. http://dx.doi.org/10.19184/ams.v6i3.9661.

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Physalia utriculus is one of the invertebrate marine biota that is often found in Indonesia. Some symptoms of venoming due to jellyfish stings cause pain, itching, and hemolysis. In Indonesia, 13 cases of jellyfish stings were reported in 2005-2009 with three people dying in Java, Bali, and Bangka. Cocoa beans (Theobroma cacao L.) contain fat, carbohydrates, proteins, and polyphenol compounds that are useful as antioxidants. Polyphenols in the form of epicathechins, catechins, and procyanidins serve to provide protection to hemolysis. The purpose of this study was to determine the potential of ethanol extract of cacao (Theobroma cacao L.) in inhibiting the damage of erythrocyte induced by Physalia utriculus in vitro. This study used 28 samples of erythrocytes divided into seven groups, namely the normal control group, negative controls, and treatment with cocoa ethanol extract 0.2%, 0.1%, 0.04%, and 0.02%. Each subsequent group induced venom Physalia utriculus. The results showed that the average speed of erythrocyte lysis in the treatment group by giving cocoa ethanol extract 0.2%, 0.1%, 0.04%, and 0.02% respectively (seconds ± standard deviation) was 858,25 ± 94,44; 1.000,5 ± 159,93; 678,5 ± 19,71; and 1.006 ± 159,50. The mean speed of erythrocyte lysis in the negative control group was 1,025 ± 164.63 and the positive control group with the administration of N-Acetylcystein can last up to one hour after administration of venoms. Test for normality and homogeneity shows that data is normally distributed and homogeneous. One Way Annova analysis shows the significance value of p <0.05, then a post hoc analysis test was performed with the Bonferoni method to find out the differences in significance in each group. In this study it can be concluded that the administration of cocoa ethanol extract has no potential to inhibit erythrocyte damage that has been venomed by Physalia utriculus in vitro. Keywords: Physalia utriculus, cacao, erythrocyte damage
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Mandojana, R. M. "Granuloma annulare following bluebottle jellyfish (Physalia utriculus) sting." Journal of Wilderness Medicine 1, no. 4 (November 1990): 220–24. http://dx.doi.org/10.1580/0953-9859-1.4.220.

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Haddad Junior, Vidal, Fábio Lang da Silveira, and Álvaro Esteves Migotto. "Skin lesions in envenoming by cnidarians (Portuguese man-of-war and jellyfish): etiology and severity of accidents on the Brazilian coast." Revista do Instituto de Medicina Tropical de São Paulo 52, no. 1 (February 2010): 47–50. http://dx.doi.org/10.1590/s0036-46652010000100008.

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This work attempts to establish dermatological identification patterns for Brazilian cnidarian species and a probable correlation with envenoming severity. In an observational prospective study, one hundred and twenty-eight patients from the North Coast region of São Paulo State, Brazil were seen between 2002 and 2008. About 80% of these showed only local effects (erythema, edema, and pain) with small, less than 20 cm, oval or round skin marks and impressions from small tentacles. Approximately 20% of the victims had long, more than 20 cm, linear and crossed marks with frequent systemic phenomena, such as malaise, vomiting, dyspnea, and tachycardia. The former is compatible with the common hydromedusa from Southeast and Southern Brazil (Olindias sambaquiensis). The long linear marks with intense pain and systemic phenomena are compatible with envenoming by the box jellyfish Tamoya haplonema and Chiropsalmus quadrumanus and the hydrozoan Portuguese man-of-war (Physalis physalis). There was an association between skin marks and probable accident etiology. This simple observation rule can be indicative of severity, as the Cubozoa Class (box jellyfish) and Portuguese man-of-war cause the most severe accidents. In such cases, medical attention, including intensive care, is important, as the systemic manifestations can be associated with death.
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Burnett, Joseph W. "Lack of Efficacy of a Combination Sunblock and “Jellyfish Sting Inhibitor” Topical Preparation against Physalia Sting." Dermatitis 16, no. 3 (September 2005): 151. http://dx.doi.org/10.1097/01206501-200509000-00016.

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Exton, David R., Peter J. Fenner, and John A. Williamson. "Cold packs: effective topical analgesia in the treatment of painful stings by Physalia and other jellyfish (for editorial comment, see page 610; see also pages 621, 626 and 708)." Medical Journal of Australia 151, no. 11-12 (December 1989): 625–26. http://dx.doi.org/10.5694/j.1326-5377.1989.tb139632.x.

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Dissertations / Theses on the topic "Physalia Jellyfishes"

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Pontin, David R. "Factors influencing the occurrence of stinging jellyfish (Physalia spp.) at New Zealand beaches." Lincoln University, 2009. http://hdl.handle.net/10182/1580.

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Individuals of the cnidarian genus Physalia are a common sight at New Zealand beaches and are the primary cause of jellyfish stings to beachgoers each year. The identity of the species and the environmental factors that determine its presence are unknown. Lack of knowledge of many marine species is not unusual, as pelagic invertebrates often lack detailed taxonomic descriptions as well as information about their dispersal mechanisms such that meaningful patterns of distribution and dispersal are almost impossible to determine. Molecular systematics has proven to be a powerful tool for species identification and for determining geographical distributions. However, other techniques are needed to indicate the causal mechanisms that may result in a particular species distribution. The aim of this study was to apply molecular techniques to the cnidarian genus Physalia to establish which species occur in coastal New Zealand, and to apply models to attempt to forecast its occurrence and infer some mechanisms of dispersal. Physalia specimens were collected from New Zealand, Australia and Hawaii and sequenced for Cytochrome c oxidase I (COI) and the Internal transcribed spacer 1 (ITS1). Three clans were found: a Pacific-wide clan, an Australasian clan and New Zealand endemic clan with a distribution confined to the Bay of Plenty and the East Coast of the North Island. Forecasting Physalia occurrence directly from presence data using artificial neural networks (ANN) proved unsuccessful and it was necessary to pre-process the presence data using a variable sliding window to reduce noise and improve accuracy. This modelling approach outperformed the time lagged based networks giving improved forecasts in both regions that were assessed. The ANN models were able to indicated significant trends in the data but would require more data at higher resolution to give more accurate forecasts of Physalia occurrence suitable for decision making on New Zealand beaches. To determine possible causal mechanisms of recorded occurrences and to identify possible origins of Physalia the presence and absence of Physalia on swimming beaches throughout the summer season was modelled using ANN and Naϊve Bayesian Classifier (NBC). Both models were trained on the same data consisting of oceanographic variables. The modelling carried out in this study detected two dynamic systems, which matched the distribution of the molecular clans. One system was centralised in the Bay of Plenty matching the New Zealand endemic clan. The other involved a dynamic system that encompassed four other regions on both coasts of the country that matched the distribution of the other clans. By combining the results it was possible to propose a framework for Physalia distribution including a mechanism that has driven clan divergence. Moreover, potential blooming areas that are notoriously hard to establish for jellyfish were hypothesised for further study and/or validation.
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Conference papers on the topic "Physalia Jellyfishes"

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Pontin, David R., Michael J. Watts, and S. P. Worner. "Using Multi-Layer Perceptrons to predict the presence of jellyfish of the genus Physalia at New Zealand beaches." In 2008 IEEE International Joint Conference on Neural Networks (IJCNN 2008 - Hong Kong). IEEE, 2008. http://dx.doi.org/10.1109/ijcnn.2008.4633947.

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