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Registros recuperados: 5
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First report of the invasive jellyfish Gonionemus vertens A. Agassiz, 1862 in the Berre Lagoon, southeast France ArchiMer
Marchessaux, Guillaume; Gadreaud, Justine; Martin-garin, Bertrand; Thiery, Alain; Ourgaud, Melanie; Belloni, Bruno; Thibault, Delphine.
The hydromedusa Gonionemus vertens A. Agassiz, 1862 was first detected in the Berre Lagoon, south of France, in July 2016. Early June 2017, following an early rise in temperature, much higher numbers of specimens were reported leading to several beach goers being stung and one going into anaphylactic shock. Effort to rehabilitate this highly anthropogenically altered lagoon has led to the redevelopment of the Zostera meadows, which might be favoring the clinging jellyfish. Developmental aberrations of specimens were noted, which could be linked to the remaining presence of chemicals from the industrial development period. Impact of this predator species on the functioning of the lagoon ecosystem should also be studied.
Tipo: Text Palavras-chave: Hydromedusae; Mediterranean lagoon; Occurrence; Invasive species; Human's health impacts.
Ano: 2017 URL: https://archimer.ifremer.fr/doc/00422/53346/74874.pdf
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Medusivorous fishes, a review Naturalis
Ates, R.M.L..
A preliminary review is presented of fish species having consumed pelagic Cnidaria (Scyphozoa and Hydrozoa) as well as Ctenophora. Quantitative data are scarce. Knowledge of morphological and physiological adaptations of fishes foraging on gelatinous plankton is almost non-existent. Many fish species consume medusae and some reasons to suspect that there are even more that do so, are discussed.
Tipo: Article / Letter to the editor Palavras-chave: Hydromedusae; Scyphozoa; Ctenophora; Jellyfish; Fishes; Prey; 42.81.
Ano: 1988 URL: http://www.repository.naturalis.nl/record/318428
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A study on the Gut contents of live Juvenile Loggerhead Turtles, Caretta Caretta (Linnaeus) (Reptilia, Cheloniidae), from the South-Eastern part of the North Atlantic Ocean, with emphasis on Coelenterate Identification Naturalis
Nierop, M.M. van; Hartog, J.C. den.
The gut contents of five juvenile individuals of the loggerhead turtle Caretta caretta (L.) from waters around Madeira, Selvagem Grande (Selvagens Islands) and São Miguel (Azores) were analysed macro- and microscopically. Macroscopic investigations showed that epipelagic salps (e.g., Pyrosoma atlanticum Péron) and gastropods (e.g., Ianthina spp. and Pterotrachea spp.) constituted an important part of the food remains present in these loggerheads. To a lesser extent this also holds for organisms such as goose-barnacles (Lepas spp.). and Idotea metallica Bosc, which live on drifting materials, including algae. Microscopic examination revealed the presence in all turtles of large numbers of nematocysts, deriving mainly from Siphonophora and to a lesser extent...
Tipo: Article / Letter to the editor Palavras-chave: Cheloniidae; Caretta caretta; Food; Nematocysts; Siphonophora; Hydromedusae; Scyphozoa; Crustacea; Mollusca; Tunicata; South-eastern North Atlantic; 42.82.
Ano: 1984 URL: http://www.repository.naturalis.nl/record/319311
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Deep-water Hydromedusae from the Lacaze-Duthiers submarine canyon (Banyuls, northwestern Mediterranean) and description of two new genera (<i>Guillea</i> and <i>Parateclaia</i>) OMA
Bouillon, J.; Pagès, F.; Gili, J.-M.; Palanques, A.; Puig, P.; Heussner, S..
Several species of hydromedusae are reported from material collected by sediment traps placed in the Lacaze-Duthiers submarine canyon, off Banyuls (north-western Mediterranean). Two new taxa <i>Guillea canyonincolae</i> gen. nov. et sp. nov, and <i>Parateclaia euromarge</i> fam. nov., gen. nov. et sp. nov., are described. The existence of highly-specific hydromedusa populations in other Mediterranean canyons which appear to be related via geological history, topography, hydrographic and ecological features peculiar to each canyon, is discussed in relation to these new records.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Guillea canyonincolae; Hydromedusae; Parateclaia euromarge.
Ano: 2000 URL: http://www.vliz.be/imisdocs/publications/232623.pdf
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First record of the invasive medusa Blackfordia virginica (Hydrozoa: Leptomedusae) in the Río de la Plata estuary, Argentina-Uruguay RChHN
GENZANO,GABRIEL; MIANZAN,HERMES; ACHA,EDUARDO M; GAITÁN,ESTEBAN.
Blackfordia virginica is a well-known invasive medusa inhabiting estuarine areas. It was recently detected in northern Argentina, constituting the first record of invasive hydromedusa for the Argentine Sea. In this work more than 1,500 plankton samples in the southwestern Atlantic Ocean (34-55º S) from 1983 to 2000 were analyzed. More than 5,000 specimens per sample of B. virginica were found in Río de la Plata estuary for the first time in February 2000. This river is one of the large waterways of South America with an intense nautical traffic and several exotic species has been recorded here, mainly due to trans-oceanic shipping traffic. It is important to point out that we found medusae of both sexes (therefore this species could be introduced in either...
Tipo: Journal article Palavras-chave: Hydromedusae; Invasive species; Estuary; South western Atlantic Ocean.
Ano: 2006 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2006000200011
Registros recuperados: 5
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