Sanderia malayensis is a scyphozoan species present in the Indian and Pacific Oceans, ranging from Suez Canal to Japan. Although this jellyfish commonly kept aquariums around world, there knowledge gap regarding its biology ecology, especially at polyp stage. In study, we tested asexual reproductive activity of S. three different temperatures: 10, 15 20 °C. Results showed significant increases ...

Jellyfish are of particular concern for marine finfish aquaculture. In recent years repeated mass mortality episodes of farmed fish were caused by blooms of gelatinous cnidarian stingers, as a consequence of a wide range of hemolytic, cytotoxic, and neurotoxic properties of associated cnidocytes venoms. The mauve stinger jellyfish Pelagia noctiluca (Scyphozoa) has been identified as direct caus...

Jellyfish are efficient predators which prey on crabs, fish larvae, and small fish. Their venoms consist of various toxins including neurotoxins that paralyse prey organisms immediately. One possible mode of action of neurotoxins is the blockage of voltage-gated sodium (Na(v)) channels. A novel polypeptide with Na(v) channel blocking activity was isolated from the northern Scyphozoa Cyanea capi...

Analysis of substances involved in light-emitting reactions among bioluminescent coelenterates has revealed a pronounced uniformity in the structural features of initial reactants, i.e., "luciferins" and photo-protein chromophores, as well as the light-emitter product. This product is structurally identical among the different classes of coelenterates: Hydrozoa (the jellyfish, Aequorea), Anthoz...

This manuscript presents four new observations of the jellyfish Mawia benovici in Adriatic Sea. species was recently identified as Pelagia by Piraino et al. (2014) and then placed genus Avian 2016. is rare almost exclusively observed Interestingly, majority refer to males only. Few studies have addressed issue sex determination Syphozoa particular, identity can only be determined at medusa stag...