Results 121 to 130 of about 386 (149)
Journal of Experimental Biology, 2018 Jellyfish are a successful and diverse class of animals that swim via jet propulsion, with swimming performance and propulsive efficiency being related to the animal's feeding ecology and body morphology.
Thomas R Neil +2 more
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Der Zoologische Garten, 2016
Abstract Despite the ecological and socio-economical importance of Rhizostomeae jellyfishes little is known about their feeding strategies and diet. We described the consumption of different ephyrae species by different developmental stages of Lychnorhiza lucerna medusae in laboratory conditions.
Agustin Schiariti +2 more
exaly +2 more sources
Abstract Despite the ecological and socio-economical importance of Rhizostomeae jellyfishes little is known about their feeding strategies and diet. We described the consumption of different ephyrae species by different developmental stages of Lychnorhiza lucerna medusae in laboratory conditions.
Agustin Schiariti +2 more
exaly +2 more sources
On the occurrence of scyphozoan ephyrae (Cnidaria, Scyphozoa, Semaeostomeae and Rhizostomeae) in the southeastern Brazilian coast [PDF]
Biota Neotropica, 2002 The occurrence of ephyrae of the scyphozoan orders Semaeostomeae and Rhizostomeae is reported for the first time for the Brazilian coast. The specimens, caught in plankton tows in the São Sebastião Channel and the Cananéia lagoon estuarine system, are: Chrysaora lactea (Semaeostomeae), Phyllorhiza punctata (Rhizostomeae), and an unidentified species of
André C Morandini, Alvaro E Migotto
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Life cycles and reproduction of Rhizostomeae
Advances in Marine BiologyIn the present study we reviewed the life cycles and reproduction strategies of the order Rhizostomeae. We found 28 species with described life cycles representing ∼30% of the valid species. The metagenetic life cycle of most scyphozoans, which includes the benthic asexually-reproducing polyp and the pelagic sexually-reproducing medusa, is exhibited by
Agustin Schiariti +2 more
exaly +4 more sources
Life cycle of the jellyfish Lychnorhiza lucerna (Scyphozoa: Rhizostomeae)
Marine Biology, 2008The life cycle of Lychnorhiza lucerna (Scyphozoa: Rhizostomeae) and the settlement preferences of its larvae were studied using laboratory-based rearing experiments. Mature medusae of L. lucerna were collected from the beach of the Rio de la Plata estuary, Argentina. This species displayed the typical metagenetic, (i.e.
A. Schiariti +3 more
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Cytotoxicity and hemolytic activity of jellyfish Nemopilema nomurai (Scyphozoa: Rhizostomeae) venom
Comparative Biochemistry and Physiology Part C: Toxicology & Pharmacology, 2009The recent bloom of a giant jellyfish Nemopilema nomurai has caused a danger to sea bathers and fishery damages in the waters of China, Korea, and Japan. The present study investigated the cytotoxic and hemolytic activities of crude venom extract of N. nomurai using a number of in vitro assays.
Changkeun Kang +8 more
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Morphology of Rhizostomeae jellyfishes: What is known and what we advanced since the 1970s
Advances in Marine BiologyThe morphology of members of the order Rhizostomeae is revisited considering all life cycle stages, but with emphasis on the medusa. The current classification of the group is presented, and some aspects of species diversity are discussed. The main issues investigated since the 1970s are briefly presented by decade.
André C Morandini
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Journal of Morphology, 1995
AbstractRhopilema nomadica—a recently discovered scyphomedusa in the eastern Mediterranean—is considered a lessepsian migrant. Its nematocysts were extracted from the scapular and mouth‐arm tentacles and examined using light and electron microscopy techniques.
AVIAN, MASSIMO, E. SPANIER, B. GALIL
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AbstractRhopilema nomadica—a recently discovered scyphomedusa in the eastern Mediterranean—is considered a lessepsian migrant. Its nematocysts were extracted from the scapular and mouth‐arm tentacles and examined using light and electron microscopy techniques.
AVIAN, MASSIMO, E. SPANIER, B. GALIL
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Ocean Science Journal, 2008
Feeding apparatus, mechanism and passage of ingested prey were described forNemopilema nomurai (Scyphozoa: Rhizostomeae).N. nomurai medusae without central mouths have developed complicated canal systems connecting the tip of the tentacle and oral arm to the gut cavity. The number of junctions in the canal system increases with the bell diameter.
Hye Eun Lee, Won Duk Yoon, Donghyun Lim
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Feeding apparatus, mechanism and passage of ingested prey were described forNemopilema nomurai (Scyphozoa: Rhizostomeae).N. nomurai medusae without central mouths have developed complicated canal systems connecting the tip of the tentacle and oral arm to the gut cavity. The number of junctions in the canal system increases with the bell diameter.
Hye Eun Lee, Won Duk Yoon, Donghyun Lim
openaire +1 more source
Ocean Science Journal, 2017
Asexual reproduction of polyps of Nemopilema nomurai, of which massive blooms have occurred in Korean waters every summer since 2003, were tested under 20 combinations of temperature (10, 15, 20, and 25°C) and salinity (12, 17, 22, 27, and 32 psu).
Hye Eun Lee +3 more
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Asexual reproduction of polyps of Nemopilema nomurai, of which massive blooms have occurred in Korean waters every summer since 2003, were tested under 20 combinations of temperature (10, 15, 20, and 25°C) and salinity (12, 17, 22, 27, and 32 psu).
Hye Eun Lee +3 more
openaire +1 more source