On the Scyphozoa from East Coast of India, Including Andaman & Nicobar
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Medusa Catostylus Tagi: (I) Preliminary Studies on Morphology, Chemical Composition, Bioluminescence and Antioxidant Activity
MEDUSA CATOSTYLUS TAGI: (I) PRELIMINARY STUDIES ON MORPHOLOGY, CHEMICAL COMPOSITION, BIOLUMINESCENCE AND ANTIOXIDANT ACTIVITY Ana Maria PINTÃO, Inês Matos COSTA, José Carlos GOUVEIA, Ana Rita MADEIRA, Zilda Braga MORAIS Centro de Polímeros Biomédicos, Cooperativa Egas Moniz, Campus Universitário Quinta da Granja, 2829-511, Portugal, [email protected] The Portuguese continental coast, specially Tejo and Sado estuaries, is the habitat of Catostylus tagi [1]. This barely studied medusa was first described in 1869, by Haeckel, and is classified in the Cnidaria phylum, Scyphozoa class, Rhizostomeae order, Catostylidae family, Catostylus genus. According to the European Register of Marine Species, the referred medusa is the only species of the Catostylidae family found in the European continent [2]. C. tagi is particularly abundant during the summer. Several medusas from the Rhizostomae order are traditionally used as food in some oriental countries [3]. Simultaneously, modern medusa utilizations are related to bioluminescence [4], toxicology [5] and biopolymers [6]. The lack of information on this genus along with the recent discoveries of new marine molecules showing anti-arthritic, anti-inflammatory or antioxidant properties motivated our studies [7]. In addition, the abundant medusa biomass could be evaluated as another natural collagen source, alternative to bovine collagen, with its multiple cosmetic and surgical potential uses [8]. The capture and sample preparation methods were optimized in 2003 [9]. Results reported in this poster relate to 65 animals that were captured in the river Sado in August and September of 2004. Macroscopic aspects, like mass and dimensions, were evaluated as well as their C. tagi by J.Gouveia chemical characteristics. -
Role of Winds and Tides in Timing of Beach Strandings, Occurrence, And
Hydrobiologia (2016) 768:19–36 DOI 10.1007/s10750-015-2525-5 PRIMARY RESEARCH PAPER Role of winds and tides in timing of beach strandings, occurrence, and significance of swarms of the jellyfish Crambione mastigophora Mass 1903 (Scyphozoa: Rhizostomeae: Catostylidae) in north-western Australia John K. Keesing . Lisa-Ann Gershwin . Tim Trew . Joanna Strzelecki . Douglas Bearham . Dongyan Liu . Yueqi Wang . Wolfgang Zeidler . Kimberley Onton . Dirk Slawinski Received: 20 May 2015 / Revised: 29 September 2015 / Accepted: 29 September 2015 / Published online: 8 October 2015 Ó Springer International Publishing Switzerland 2015 Abstract Very large swarms of the red jellyfish study period, this result was not statistically significant. Crambione mastigophora in north-western Australia Dedicated instrument measurements of meteorological disrupt swimming on tourist beaches causing eco- parameters, rather than the indirect measures used in nomic impacts. In October 2012, jellyfish stranding on this study (satellite winds and modelled currents) may Cable Beach (density 2.20 ± 0.43 ind. m-2) was improve the predictability of such events and help estimated at 52.8 million individuals or 14,172 t wet authorities to plan for and manage swimming activity weight along 15 km of beach. Reports of strandings on beaches. We also show a high incidence of after this period and up to 250 km south of this location predation by C. mastigophora on bivalve larvae which indicate even larger swarm biomass. Strandings of may have a significant impact on the reproductive jellyfish were significantly associated with a 2-day lag output of pearl oyster broodstock in the region. in conditions of small tidal ranges (\5 m). -
Population Structures and Levels of Connectivity for Scyphozoan and Cubozoan Jellyfish
diversity Review Population Structures and Levels of Connectivity for Scyphozoan and Cubozoan Jellyfish Michael J. Kingsford * , Jodie A. Schlaefer and Scott J. Morrissey Marine Biology and Aquaculture, College of Science and Engineering and ARC Centre of Excellence for Coral Reef Studies, James Cook University, Townsville, QLD 4811, Australia; [email protected] (J.A.S.); [email protected] (S.J.M.) * Correspondence: [email protected] Abstract: Understanding the hierarchy of populations from the scale of metapopulations to mesopop- ulations and member local populations is fundamental to understanding the population dynamics of any species. Jellyfish by definition are planktonic and it would be assumed that connectivity would be high among local populations, and that populations would minimally vary in both ecological and genetic clade-level differences over broad spatial scales (i.e., hundreds to thousands of km). Although data exists on the connectivity of scyphozoan jellyfish, there are few data on cubozoans. Cubozoans are capable swimmers and have more complex and sophisticated visual abilities than scyphozoans. We predict, therefore, that cubozoans have the potential to have finer spatial scale differences in population structure than their relatives, the scyphozoans. Here we review the data available on the population structures of scyphozoans and what is known about cubozoans. The evidence from realized connectivity and estimates of potential connectivity for scyphozoans indicates the following. Some jellyfish taxa have a large metapopulation and very large stocks (>1000 s of km), while others have clade-level differences on the scale of tens of km. Data on distributions, genetics of medusa and Citation: Kingsford, M.J.; Schlaefer, polyps, statolith shape, elemental chemistry of statoliths and biophysical modelling of connectivity J.A.; Morrissey, S.J. -
Apresentação Do Powerpoint
PRELIMINARY SEM STUDIES ON NORMAL AND ALTERED GONADS OF CATOSTYLUS TAGI Raquel Lisboa 1, 2, Isabel Nogueira 3, Fátima Gil 4, Paulo Mascarenhas 2, Zilda Morais 2 1 Departamento de Biologia, Universidade de Aveiro - Campus Universitário de Santiago, 3810-193 Aveiro 2 CiiEM, Egas Moniz Cooperativa de Ensino Superior - Campus Universitário, Quinta da Granja, 2829 - 511 Monte de Caparica, Almada 3 Microlab, Instituto Superior Técnico - Av. Rovisco Pais 1, 1049-001 Lisboa 4 Aquário Vasco da Gama - R. Direita do Dafundo, 1495-718 1495-154 Algés [email protected] Introduction Methods It is known that according to the life stage, an Eighty exemplars (61 males and 19 interaction of organisms can change from females) were collected in mutualism to commensalism and vice-versa; September 2016. even parasitism can be shared. Recent studies The gonads (Fig.2) were removed have shown a close interaction among jellyfish, and placed in five fixative solvents fishes and other taxa [1]. (Hollande, Gendre, Bouin, ethanol Catostylus tagi (Fig.1), the sole European and formaldehyde) to prevent Catostylidae, is an edible Scyphozoa which tissue degradation. occurs in summer at Tagus and Sado estuaries. SEM Preparation Fig. 2- C. tagi gonads (photo by R. Lisboa). Some aspects of its application in health Fig. 1- Catostylus tagi sciences have already been studied [2]. (photo by R. Lisboa). Experiments were conducted by depositing the fixed gonads on a metal stub, in which a thin film of a conducting metal was To start the study of its life cycle, the characterization of gonads sputtered. Samples were imaged with JEOL Field Emission regarding size and sex were carried out by optical (OM) and Scanning Electron Microscope JSM-7001F [3]. -
Cnidarian Immunity and the Repertoire of Defense Mechanisms in Anthozoans
biology Review Cnidarian Immunity and the Repertoire of Defense Mechanisms in Anthozoans Maria Giovanna Parisi 1,* , Daniela Parrinello 1, Loredana Stabili 2 and Matteo Cammarata 1,* 1 Department of Earth and Marine Sciences, University of Palermo, 90128 Palermo, Italy; [email protected] 2 Department of Biological and Environmental Sciences and Technologies, University of Salento, 73100 Lecce, Italy; [email protected] * Correspondence: [email protected] (M.G.P.); [email protected] (M.C.) Received: 10 August 2020; Accepted: 4 September 2020; Published: 11 September 2020 Abstract: Anthozoa is the most specious class of the phylum Cnidaria that is phylogenetically basal within the Metazoa. It is an interesting group for studying the evolution of mutualisms and immunity, for despite their morphological simplicity, Anthozoans are unexpectedly immunologically complex, with large genomes and gene families similar to those of the Bilateria. Evidence indicates that the Anthozoan innate immune system is not only involved in the disruption of harmful microorganisms, but is also crucial in structuring tissue-associated microbial communities that are essential components of the cnidarian holobiont and useful to the animal’s health for several functions including metabolism, immune defense, development, and behavior. Here, we report on the current state of the art of Anthozoan immunity. Like other invertebrates, Anthozoans possess immune mechanisms based on self/non-self-recognition. Although lacking adaptive immunity, they use a diverse repertoire of immune receptor signaling pathways (PRRs) to recognize a broad array of conserved microorganism-associated molecular patterns (MAMP). The intracellular signaling cascades lead to gene transcription up to endpoints of release of molecules that kill the pathogens, defend the self by maintaining homeostasis, and modulate the wound repair process. -
First Records of Three Cepheid Jellyfish Species from Sri Lanka With
Sri Lanka J. Aquat. Sci. 25(2) (2020): 45-55 http://doi.org/10.4038/sljas.v25i2.7576 First records of three cepheid jellyfish species from Sri Lanka with redescription of the genus Marivagia Galil and Gershwin, 2010 (Cnidaria: Scyphozoa: Rhizostomeae: Cepheidae) Krishan D. Karunarathne and M.D.S.T. de Croos* Department of Aquaculture and Fisheries, Faculty of Livestock, Fisheries and Nutrition, Wayamba University of Sri Lanka, Makandura, Gonawila (NWP), 60170, Sri Lanka. *Correspondence ([email protected], [email protected]) https://orcid.org/0000-0003-4449-6573 Received: 09.02.2020 Revised: 01.08.2020 Accepted: 17.08.2020 Published online: 15.09.2020 Abstract Cepheid medusae appeared in great numbers in the northeastern coastal waters of Sri Lanka during the non- monsoon period (March to October) posing adverse threats to fisheries and coastal tourism, but the taxonomic status of these jellyfishes was unknown. Therefore, an inclusive study on jellyfish was carried out from November 2016 to July 2019 for taxonomic identification of the species found in coastal waters. In this study, three species of cepheid mild stingers, Cephea cephea, Marivagia stellata, and Netrostoma setouchianum were reported for the first time in Sri Lankan waters. Moreover, the diagnostic description of the genus Marivagia is revised in this study due to the possessing of appendages on both oral arms and arm disc of Sri Lankan specimens, comparing with original notes and photographs of M. stellata. Keywords: Indian Ocean, invasiveness, medusae, morphology, taxonomy INTRODUCTION relationships with other fauna (Purcell and Arai 2001), and even dead jellyfish blooms can The class Scyphozoa under the phylum Cnidaria transfer mass quantities of nutrients into the sea consists of true jellyfishes. -
CNIDARIA Corals, Medusae, Hydroids, Myxozoans
FOUR Phylum CNIDARIA corals, medusae, hydroids, myxozoans STEPHEN D. CAIRNS, LISA-ANN GERSHWIN, FRED J. BROOK, PHILIP PUGH, ELLIOT W. Dawson, OscaR OcaÑA V., WILLEM VERvooRT, GARY WILLIAMS, JEANETTE E. Watson, DENNIS M. OPREsko, PETER SCHUCHERT, P. MICHAEL HINE, DENNIS P. GORDON, HAMISH J. CAMPBELL, ANTHONY J. WRIGHT, JUAN A. SÁNCHEZ, DAPHNE G. FAUTIN his ancient phylum of mostly marine organisms is best known for its contribution to geomorphological features, forming thousands of square Tkilometres of coral reefs in warm tropical waters. Their fossil remains contribute to some limestones. Cnidarians are also significant components of the plankton, where large medusae – popularly called jellyfish – and colonial forms like Portuguese man-of-war and stringy siphonophores prey on other organisms including small fish. Some of these species are justly feared by humans for their stings, which in some cases can be fatal. Certainly, most New Zealanders will have encountered cnidarians when rambling along beaches and fossicking in rock pools where sea anemones and diminutive bushy hydroids abound. In New Zealand’s fiords and in deeper water on seamounts, black corals and branching gorgonians can form veritable trees five metres high or more. In contrast, inland inhabitants of continental landmasses who have never, or rarely, seen an ocean or visited a seashore can hardly be impressed with the Cnidaria as a phylum – freshwater cnidarians are relatively few, restricted to tiny hydras, the branching hydroid Cordylophora, and rare medusae. Worldwide, there are about 10,000 described species, with perhaps half as many again undescribed. All cnidarians have nettle cells known as nematocysts (or cnidae – from the Greek, knide, a nettle), extraordinarily complex structures that are effectively invaginated coiled tubes within a cell. -
The First Record of the White-Spotted Australian Jellyfish Phyllorhiza
BioInvasions Records (2017) Volume 6, Issue 2: 119–124 Open Access DOI: https://doi.org/10.3391/bir.2017.6.2.05 © 2017 The Author(s). Journal compilation © 2017 REABIC Rapid Communication The first record of the white-spotted Australian jellyfish Phyllorhiza punctata von Lendenfeld, 1884 from Maltese waters (western Mediterranean) and from the Ionian coast of Italy Alan Deidun1,*, Jeffrey Sciberras2, Arnold Sciberras2, Adam Gauci1, Paolo Balistreri3, Angelo Salvatore3 and Stefano Piraino4 1Physical Oceanography Research Group, Department of Geosciences, University of Malta, Msida, Malta MSD 2080 2Animal Kingdom Limited, 136, Ditch Street, Paola, Malta 3Vicolo Giotto 6, 91023 Favignana, Italy 4Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, via per Monteroni, 73100, Lecce, Italy *Corresponding author E-mail: [email protected] Received: 18 January 2017 / Accepted: 4 April 2017 / Published online: 17 April 2017 Handling editor: Michal Grabowski Abstract The occurrence of the white-spotted Australian jellyfish Phyllorhiza punctata Lendenfeld, 1884, an Indo-Pacific scyphozoan species mainly restricted to the Levantine Basin, is hereby reported for the first time from Maltese waters (western Mediterranean) and from the Ionian coast of Italy. Considerations on possible vectors of introduction of the jellyfish species to this part of the Mediterranean are made. Key words: scyphozoan, new introduction, citizen science Introduction across vast tracts of the Atlantic, edging progressively north within the Gulf of Mexico in the At least five non-indigenous species of scypho- summer of 2000 and up to the coasts of Florida (as medusae of Erythraean or Indo-Pacific origin have summarised in Galil et al. -
Variability and Plasticity of the Nutrition of Zooxanthellate Jellyfishes : Insights from Experimental and Field Studies Nicolas Djeghri
Variability and plasticity of the nutrition of zooxanthellate jellyfishes : insights from experimental and field studies Nicolas Djeghri To cite this version: Nicolas Djeghri. Variability and plasticity of the nutrition of zooxanthellate jellyfishes : insights from experimental and field studies. Ecosystems. Université de Bretagne occidentale - Brest, 2019. English. NNT : 2019BRES0061. tel-02524884 HAL Id: tel-02524884 https://tel.archives-ouvertes.fr/tel-02524884 Submitted on 30 Mar 2020 HAL is a multi-disciplinary open access L’archive ouverte pluridisciplinaire HAL, est archive for the deposit and dissemination of sci- destinée au dépôt et à la diffusion de documents entific research documents, whether they are pub- scientifiques de niveau recherche, publiés ou non, lished or not. The documents may come from émanant des établissements d’enseignement et de teaching and research institutions in France or recherche français ou étrangers, des laboratoires abroad, or from public or private research centers. publics ou privés. THESE DE DOCTORAT DE L'UNIVERSITE DE BRETAGNE OCCIDENTALE COMUE UNIVERSITE BRETAGNE LOIRE ECOLE DOCTORALE N° 598 Sciences de la Mer et du littoral Spécialité : Ecologie Marine Par Nicolas DJEGHRI Variability and Plasticity of the Nutrition of Zooxanthellate Jellyfishes Insights from experimental and field studies. Variabilité et Plasticité de la Nutrition des Méduses à Zooxanthelles Apports expérimentaux et de terrain. Thèse présentée et soutenue à Plouzané, le 2 décembre 2019 Unité de recherche : Lemar Rapporteurs -
Five New Subspecies of Mastigias (Scyphozoa: Rhizostomeae: Mastigiidae) from Marine Lakes, Palau, Micronesia
J. Mar. Biol. Ass. U.K. (2005), 85, 679–694 Printed in the United Kingdom Five new subspecies of Mastigias (Scyphozoa: Rhizostomeae: Mastigiidae) from marine lakes, Palau, Micronesia Michael N Dawson Coral Reef Research Foundation, Koror, Palau. Present address: Section of Evolution and Ecology, Division of Biological Sciences, Storer Hall, University of California at Davis, One Shields Avenue, Davis, CA 95616, USA. E-mail: [email protected] Published behavioural, DNA sequence, and morphologic data on six populations of Mastigias, five from marine lakes and one from the lagoon, in Palau are summarized. Each marine lake popula- tion is distinguished from the lagoon population and from other lake populations by an unique suite of characteristics. Morphological differences among Mastigias populations in Palau are greater than those recorded between any previously described species of Mastigias, whereas molecular differences are far less (≤2.2% in COI and ITS1) than those found between medusae identified in the field as Mastigias papua (>6% in COI and ITS1). Thus, each marine lake population in Palau is described as a new subspecies of Mastigias cf. papua: remengesaui (in Uet era Ongael), nakamurai (in Goby Lake), etpisoni (in Ongeim’l Tketau), saliii (in Clear Lake), and remeliiki (in Uet era Ngermeuangel). INTRODUCTION recorded between many previously described nomi- nal species of Mastigias (M. albipunctata Stiasny, 1920; To some naturalists, Mastigias medusae in marine M. andersoni Stiasny, 1926; M. gracilis (Vanhöffen, lakes, Palau, symbolize the evolutionary process 1888); M. ocellatus (Modeer, 1791); M. pantherinus (Faulkner, 1974). In the first scientific publication on Haeckel, 1880; M. papua (Lesson, 1830); M. -
(Scyphozoa: Rhizostomeae: Cepheidae), Another Alien Jellyfish from the Mediterranean Coast of Israel
Aquatic Invasions (2010) Volume 5, Issue 4: 331–340 doi: 10.3391/ai.2010.5.4.01 Open Access © 2010 The Author(s). Journal compilation © 2010 REABIC Research article Marivagia stellata gen. et sp. nov. (Scyphozoa: Rhizostomeae: Cepheidae), another alien jellyfish from the Mediterranean coast of Israel Bella S. Galil1*, Lisa-Ann Gershwin2, Jacob Douek1 and Baruch Rinkevich1 1National Institute of Oceanography, Israel Oceanographic & Limnological Research, POB 8030, Haifa 31080, Israel 2Queen Victoria Museum and Art Gallery, Launceston, Tasmania, 7250, Australia, and South Australian Museum, North Terrace, Adelaide, South Australia, 5000 E-mails: [email protected] (BSG), [email protected] (LAG), [email protected] (JD), [email protected] (BR) *Corresponding author Received: 6 August 2010 / Accepted: 15 September 2010 / Published online: 20 September 2010 Abstract Two specimens of an unknown jellyfish species were collected in Bat Gallim and Beit Yannai, on the Mediterranean coast of Israel, in June and July 2010. Morphological characters identified it as a cepheid (Cnidaria, Scyphozoa, Rhizostomeae). However, the specimens showed remarkable differences from other cepheid genera; unlike Cephea and Netrostoma it lacks warts or knobs centrally on the exumbrella and filaments on oral disk and between mouths, and it differs from Cotylorhiza in its proximally loose anastomosed radial canals and in lacking stalked suckers and filaments on the moutharms. We thus describe it herein as Marivagia stellata gen. et sp. nov. We also present the results of molecular analyses based on mitochondrial cytochrome oxidase I (COI) and 28S ribosomal DNA, which support its placement among the Cepheidae and also provide its barcode signature. -
Jellyfish Gone Wild
NSF - Jellyfish Gone Wild Special Report Text-only Jellyfish Gone Wild HOME Enviromental Change and Jellyfish Swarms 1. 1/3 of the total weight of all life in Monterey Bay is from gelatinous animals. Jellyfish Gone Wild — Home 2. 3 minutes after a person is stung by a deadly box jellyfish, s/he may be dead. Introduction 3. 8 years after fast-reproducing comb jellies invaded in the Black Sea, they dominated it. Biology 4. 20 to 40 people are killed annually from box jellyfish stings in the Philippines alone. Ecology 5. 100 foot-long tentacles may dangle from the lion’s mane jelly. Swarms 6. 400 vast Dead Zones in world oceans are too polluted for almost all life except jellyfish. Locations 7. 1,000+ fist-sized comb jellies filled each cubic meter of water in Black Sea jelly blooms. Gallery 8. 45,000 eggs may be released daily by a single jellyfish. Resources 9. 500,000 people are stung by jellyfish in the Chesapeake Bay annually. 10. 500 million refrigerator-sized jellyfish float into the Sea of Japan daily during blooms. NSF - Jellyfish Gone Wild Special Report Text-only Introduction When distributed in reasonable numbers, native jellyfish play important ecological roles. But when jellyfish populations run wild, they may jam hundreds and perhaps even thousands of square miles with their pulsating, gelatinous bodies. Jellyfish Gone Wild — Home In recent years, massive blooms of stinging jellyfish and jellyfish-like creatures have overrun some of the world’s most important fisheries and tourist destinations--even Introduction transforming large swaths of them into veritable jellytoriums.