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Distribution of planktonic cnidarian assemblages in the southern Gulf of Mexico, during autumn RChHN
Martell-Hernandez,Luis F; Sanchez-Ramirez,Marina; Ocaña-Luna,Alberto.
BACKGROUND: Despite their ecological, economic and medical relevance, very little information is available on the distribution of planktonic cnidarians, this being particularly true for some regions of the ocean such as the Gulf of Mexico. In fact, the effect of locally important oceanographic features such as the offshore autumnal transport on the distribution of planktonic cnidarians has long been overlooked in this region. Because of this, the present study aimed to analyse the spatial patterns of planktonic cnidarian assemblages in the southern Gulf of Mexico during the autumn of 1998, when particularly intense conditions of convergence, offshore water transportation and productivity were recorded. The assemblages were described in terms of their...
Tipo: Journal article Palavras-chave: Campeche Bay; Gelatinous zooplankton; Medusae; Siphonophores; Surface circulation.
Ano: 2014 URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2014000100028
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Feeding behaviour of Caribbean Scyphomedusae: Cassiopea frondosa (Pallas) and Cassiopea xamachana Bigelow Naturalis
Larson, R.J..
LARSON, R.J., 1997. Feeding behaviour of Caribbean Scyphomedusae: Cassiopea frondosa (Pallas) and Cassiopea xamachana (Bigelow). Studies Nat. Hist. Caribbean Region 73, Amsterdam 1997: 43-54. Cassiopea frondosa and C. xamachana are carnivorous. Prey are filtered from the water by the pumping activity of the umbrella. Prey, predominantly small epibenthic crustaceans (0.2- 10 mm in length) are caught mostly by interception. However, some prey may impact on the oral surface through turbulence or by their own locomotion. Prey capture was essentially the same for both species, except that the vesicles take an active part in prey capture only in C. frondosa. Ingestion occurred after the digitate-fringed lips of the funnel-shaped oral ostia opened. The digitata...
Tipo: Article / Letter to the editor Palavras-chave: Feeding; Scyphomedusae; Prey selection; Puerto Rico.; Caribbean; Medusae; Cassiopea.
Ano: 1997 URL: http://www.repository.naturalis.nl/record/503184
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Molecular approach indicates consumption of jellyfish by commercially important fish species in a coastal Mediterranean lagoon ArchiMer
Marques, Raquel; Darnaude, Audrey M.; Crochemore, Sandrine; Bouvier, Corinne; Bonnet, Delphine.
Until recently, jellyfish have been ignored as an important source of food, due to their low nutritional value. Here, quantitative PCR was used to detect and quantify the DNA of the jellyfish Aurelia coerulea in the gut contents of commercially important fish species from the Thau Lagoon. Individuals from five fish species were collected during two different periods: the bloom period, when the pelagic stages of A. coerulea are abundant, and the post-bloom period, when only the benthic stage – polyps – is present in the lagoon. The DNA of A. coerulea was detected in the guts of 41.9% of the fish analysed, belonging to four different species. The eel Anguilla anguilla and the seabream Sparus aurata were important jellyfish consumers during the bloom and...
Tipo: Text Palavras-chave: Predation; Aurelia coerulea; Eel; Seabream; Polyps; Medusae; Quantitative PCR; Gut content; Thau lagoon.
Ano: 2019 URL: https://archimer.ifremer.fr/doc/00513/62469/66986.pdf
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