Effect of different diets on growth and survival of the White-Spotted Jellyfish, Phyllorhiza punctata

Event Abstract Back to Event Effect of different diets on growth and survival of the White-Spotted Jellyfish, Phyllorhiza punctata Fábio Alexandre S. Miranda1*, João Chambel1, 2, Catarina Almeida1, Damiana Pires1, Inês Duarte1, Liliana Esteves1 and Paulo Maranhão1 1 Escola Superior de Turismo e Tecnologias do Mar, Portugal 2 AQUASPROSEA, Lda, Portugal In recent decades we have seen a large increase in the market of ornamental organisms gaining importance in the world economy. The jellyfishes as ornamental organisms have a wide margin of progression, and they are considered an emerging group in the ornamental industry. In the present study, we hypothesize that diet can influence the survival and growth of ephyra to juvenile jellyfish of the species Phyllorhiza punctata, in captivity. Six diets were tested: (A) Artemia naupli (10 Ind/ml), (B) rotifers (20 Ind/ml), (C) mix of Artemia (5 Ind/ml) and rotifers (10 Ind/ml), (D) microalgae (Nannochloropsis sp., 5*105cells/ml), (E) mix of Artemia (10 Ind /ml) and microalgae(Nannochloropsis sp., 5*105cells/ml) and (F) mix of rotifers (20 Ind /ml) and microalgae(Nannochloropsis sp., 5*105cells/ml). The ephyra were obtained by strobilation of a population of polyps maintained in captivity at our facilities. 450 ephyra were collected and were randomly distributed into eighteen cilyndroconic tanks at stocking density of 24 ephyra.L-1 (3 replicates for treatment), maintained in a controlled room temperature (22ºC±1ºC). Ephyra were fed every two days during the 24 days of the experiment. Every two days the survival was monitored and nine ephyra of each treatment were collected in order to measure its diameter. After 24 days the survival varied from 27.8±11.1% to 93.1±1.4% on treatments A and F, respectively. The ephyra feed with Artemia naupli (diet A) showed the poorest survival compared with others diets (p-value<0.05). Moreover the growth were significantly affected by the diet (p-value<0.05) and varied between 1.59±1.14 mm on diet A to 6.93±0.38 mm on diet F. The present results showed the importance of choosing the first food for rearing ephyra of P. puntacta. In general, the survival and growth were best when ephyra were feed with diet of rotifers and microalgae. Keywords: Phyllorhiza punctata, Aquaculture Research, Ephyra, DIETS, Growth Conference: IMMR | International Meeting on Marine Research 2016, Peniche, Portugal, 14 Jul - 15 Jul, 2016. Presentation Type: Poster presentation Topic: Aquaculture Citation: Miranda FS, Chambel J, Almeida C, Pires D, Duarte I, Esteves L and Maranhão P (2016). Effect of different diets on growth and survival of the White-Spotted Jellyfish, Phyllorhiza punctata. Front. Mar. Sci. Conference Abstract: IMMR | International Meeting on Marine Research 2016. doi: 10.3389/conf.FMARS.2016.04.00042 Copyright: The abstracts in this collection have not been subject to any Frontiers peer review or checks, and are not endorsed by Frontiers. They are made available through the Frontiers publishing platform as a service to conference organizers and presenters. The copyright in the individual abstracts is owned by the author of each abstract or his/her employer unless otherwise stated. Each abstract, as well as the collection of abstracts, are published under a Creative Commons CC-BY 4.0 (attribution) licence (https://creativecommons.org/licenses/by/4.0/) and may thus be reproduced, translated, adapted and be the subject of derivative works provided the authors and Frontiers are attributed. For Frontiers’ terms and conditions please see https://www.frontiersin.org/legal/terms-and-conditions. Received: 14 May 2016; Published Online: 13 Jul 2016. * Correspondence: Mr. Fábio Alexandre S Miranda, Escola Superior de Turismo e Tecnologias do Mar, Peniche, Leiria, 2520-641, Portugal, fabio.s.miranda@hotmail.com Login Required This action requires you to be registered with Frontiers and logged in. To register or login click here. Abstract Info Abstract The Authors in Frontiers Fábio Alexandre S Miranda João Chambel Catarina Almeida Damiana Pires Inês Duarte Liliana Esteves Paulo Maranhão Google Fábio Alexandre S Miranda João Chambel Catarina Almeida Damiana Pires Inês Duarte Liliana Esteves Paulo Maranhão Google Scholar Fábio Alexandre S Miranda João Chambel Catarina Almeida Damiana Pires Inês Duarte Liliana Esteves Paulo Maranhão PubMed Fábio Alexandre S Miranda João Chambel Catarina Almeida Damiana Pires Inês Duarte Liliana Esteves Paulo Maranhão Related Article in Frontiers Google Scholar PubMed Abstract Close Back to top Javascript is disabled. Please enable Javascript in your browser settings in order to see all the content on this page.