Development of a Classification Scheme for the Marine Benthic Invertebrate Component, Water Framework Directive
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Of Oceanactis Diomedeae (Cnidaria: Actiniaria: Oractiidae) and Systematic Position of the Genera Oceanactis and Oractis
JapaneseJapaneseSociety Society ofSystematicZoologyof Systematic Zoology Species Diversity, 2003, 8, 93--101 New Record of Oceanactis diomedeae (Cnidaria: Actiniaria: Oractiidae) and Systematic Position of the Genera Oceanactis and Oractis N. P. Sanamyan Klrimchatka institute ofEcology and Environment, Ptxrtyzanskqya a Petrqpavlovsk-Ktzmchatslty, 683000, Russia E-niaiL' na([email protected] (Received 1 February 2002; Accepted 10 November 2002) The small, deep-water sea anemone Oceanactis diomedeae (McMurrich, 1893) is recorded for the first time since it was first described, living in muddy habitats of the Sea of Okhotsk. The genus Oceanactis Moseley, 1877 is considered synonymous with Oractts McMurrich, 1893 and is the only genus belonging to the family Oractiidae Riemann-ZUrneck, 2000. The invagina- "glandular tions of the oral dise or sacs", unique to the Oractiidae, are de- scribed and their possible function is discussed. Key Words: Actiniaria. Oractiidae, sea anemones, Sea of Okhotsk, taxon- omy. Introduction were Several specimens of Oceanactis diomedeae (McMurrich, 1893) found among other sea anemones collected in the Sea of Okhotsk. This species was de- scribed as Oractis diomedeae McMurrich, 1893 from several specimens collected in California (McMurrich 1893), The taxonomic status of Oractis McMurrich, 1893 was not clear for a long time: initially described as a fbrm related to Gonactinia Sars, 1851 (Gonactiniidae), it was referred to the Andresiidae by Carlgren (1931) and later to the Haloclavidae by Carlgren (1949). Stephenson (1935: 30) pointed out that Oractis is an unusual form, not fitting readily into any family. He considered "may it to be related to the Halcampoididae or it be an immature or aberrant Ilyan- thid." Recently Riemann-ZUrneck (2000) established a new family Oractiidae and described a second species belonging to this genus, Oractis bursijt?ra Riemann- ZUrneck, 20oo, based on a single specimen from the central Arctic deep sea in- (Amundsen Basin, 3ooOm). -
Interspecific Differences in the Reaction to Atropine and in the Histology of the Esophagi of the Common California Sea Hares of the Genus Aplysia
Interspecific Differences in the Reaction to Atropine and in the Histology of the Esophagi of the Common California Sea Hares of the Genus Aplysia LINDSAY R. WINKLER and BERNARD E. TILTON! DURING A STUDY of the effects of certain cho through two 5 gal. carboys maintained in a re linergic agents on the tissues of Aplysia, it was frigerator. It was thus possible to keep the water noted that the esophagi of the two California clean and cooled to approximately the tempera species (A. califarnica and A. vaccaria) reacted ture of the intertidal environment of these ani divergently to atropine. This is of interest to mals. Parsley obtained in the local market was both the taxonomy and physiology of the genus eaten in quantity by A. califarnica but was re as well as potentially to a better understanding fused by A. vaccaria. Consequently all speci of the mode of action of atropine. Other drugs mens of the latter were used as soon as prac commonly known to show activity on muscle ticable. tissue were also tested on the two species to Animals were sacrificed by incising the entire determine if any other interspecifically diver length of the foot, turning the animal inside out gent reactions existed. These pharmacological and removing the esophagus after tying it at reactions will be reported later. both ends. The esophagi were suspended from Botazzi (1898) observed the periodic con a plastic holder in conventional baths using 30 tractions of the esophagus of the European ml. of sea water. The movable end of the esoph Aplysia and made a thorough study of its phys agus was ligated to a Grass force-displacement iology. -
Nudipleura Bathydorididae Bathydoris Clavigera AY165754 2064 AY427444 1383 AF249222 445 AF249808 599
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`);D8D-S-"Q"'("%)D:":/)U&55/B.&%)&I)_"5/&%:&5&1K)"%7)</&5&1K,)</&V(&)U/%:/')\AP,) M(BC"'7S>"1%/'SD:'=)+a,)Xa333)A9%BC/%,)</'H"%K`)?>/#:/'%)4$#:'"5("%)A$#/$H,)\&BR/7)-"1);b,)>/5#CG&&5)FU,)_/':C,) >4)YbXY,)4$#:'"5("=))U&''/#G&%7/%B/)"%7)'/c$/#:#)I&')H":/'("5#)#C&$57)V/)"77'/##/7):&)!=*=)d/H"(5e)R"%&f"&'(=$S :&RK&="B=gGh) 7&33'+8+#1-.9)"#:/.8-;/#<) =-*'+)7>?)8$B5/&.7/)#/c$/%B/#)&I)G'(H/'#)$#/7)I&')"HG5(iB".&%)"%7)#/c$/%B(%1 =-*'+)7@?)<"#:'&G&7)#G/B(/#)"%7)#/c$/%B/#)$#/7)(%):C/)GCK5&1/%/.B)'/B&%#:'$B.&%)&I)/$:CK%/$'"%)B5"7/#)(%B5$7(%1) M(%1(B$5&(7/" A"$&.+)7>?)M46A\):'//#)V"#/7)&%)I&$'S1/%/)7":"#/:)T(:C&$:)&%/)&I):T&)H"g&')%$7(G5/$'"%)#$VB5"7/#e)d"h)8$7(V'"%BC(") d!"#$%&'()*+"%7),-.)/)&"h)"%7)dVh)_5/$'&V'"%BC&(7/")d0.-1('2("34$1*+"%7)5'/#$'/6*'3)"h= A"$&.+)7@?)O(H/SB"5(V'":/7)-J4DO):'//#)T(:C&$:)&%/)&I)I&$')B"5(V'".&%)G'(&'#e)d"h)i'#:)#G5(:)T(:C(%)J$&G(#:C&V'"%BC(")"%7) dVh)#G5(:#)V/:T//%)7"(%4$)1/)"%7)8/-"9'.)"%7)dBh)V/:T//%):)39)41.'6*)*)"%7):C'//)&:C/')'(%1(B$5(7#= A"$&.+)7B?)A'-"K/#):'//)V"#/7)&%)I&$'S1/%/)7":"#/:= -
Anuário Do Instituto De Geociências - UFRJ
Anuário do Instituto de Geociências - UFRJ www.anuario.igeo.ufrj.br As Famílias Veneridae, Trochidae, Akeridae e Acteonidae (Mollusca), na Formação Romualdo: Aspectos Paleoecológicos e Paleobiogeográicos no Cretáceo Inferior da Bacia do Araripe, NE do Brasil The Families Veneridae, Trochidae, Akeridae and Acteonidae (Mollusca), in the Romualdo Formation: Paleoecological and Paleobiogeographic Aspects in the Lower Cretaceous of the Araripe Basin, NE of Brazil Priscilla Albuquerque Pereira1; Rita de Cassia Tardin Cassab2 & Alcina Magnólia Franca Barreto1 1Universidade Federal de Pernambuco, Centro de Tecnologia e Geociências, Departamento de Geologia, Laboratório de Paleontologia, Av. Hélio Acadêmico Ramos, s/n, Cidade Universitária, 50740-533, Recife, PE, Brasil 2 Universidade Federal do Rio de Janeiro, Instituto de Geociências, Departamento de Geologia, Avenida Athos da Silveira Ramos, 274, 21910-900, Cidade Universitária, Ilha do Fundão, s/n, Rio de Janeiro, Rio de Janeiro-RJ, Brasil E-mail: [email protected]; [email protected]; [email protected] Recebido em: 18/07/2018 Aprovado em: 21/09/2018 DOI: http://dx.doi.org/10.11137/2018_3_137_152 Resumo Moluscos fósseis na Bacia Sedimentar do Araripe são relatados desde a década de 1960, com biválvios presentes nas forma- ções Crato, Romualdo e gastrópodos, restritos a Formação Romualdo. A identiicação e descrição desses moluscos tem auxiliado na reconstituição paleoambiental da Formação Romualdo (Aptiano-Albiano) e na interpretação da rota de incursão marinha que aponta para inluência do mar de Tétis na bacia. Este trabalho, descreve e ilustra fósseis coletados nas localidades de Zé Gomes, Cedro/ Tabuleiro e Santo Antônio município de Exu, Pernambuco, pontuando a paleoecologia e a distribuição paleogeográica dos gêneros, além de observar as ainidades faunísticas entre as formaçõe Romualdo e Riachuelo. -
Ultrastructure of the Sperm of Aplysia Californica Cooper
Medical Research Archives 2015 Issue 2 ULTRASTRUCTURE OF THE SPERM OF APLYSIA CALIFORNICA COOPER Jeffrey s. Prince1,2 and Brian Cichocki2 1 Department of Biology, University of Miami, Coral Gables, Florida, 33124 USA; 2Dauer Electron Microscopy Laboratory, University of Miami, Coral Gables, Florida, 33124 USA. Running Head: STRUCTURE OF APLYSIA SPERM Correspondence: J. S. Prince; e-mail: [email protected] Abstract—The structure of the sperm of Aplysia californica was studied by both transmission and scanning electron microscopy. Aplysia californica, a species with internal fertilization, has the modified type of molluscan sperm structure. Spermatids had a glycogen helix spiraled about the flagellum, both enclosed by a common microtubular basket. A second vacuole helix was periodically seen only in spermatids and absent in spermatozoa. An additional basket of microtubules appeared to direct the elongation and spiraling of the nucleus about the flagellum/glycogen helix. A flat acrosome was present while the centriolar derivative was embedded in a deep nuclear fossa with strands of heterochromatin arranged nearly perpendicular to its long axis. The mitochondrial derivative consisted of small, frequently electron dense, closely spaced rods but individual mitochondria were also seen surrounding the axoneme of spermatids. The axoneme consisted of dense fibers that appeared to have a "C" shape substructure with a central dense fiber thus providing a 9+1 arrangement of singlet units; the typical 9+2 microtubule arrangement of flagella was absent. Flagella with two axonemes were frequently seen as well as an extra axoneme within the head of immature sperm. Keywords—Aplysia californica; sperm; ultrastructure Copyright © 2015, Knowledge Enterprises Incorporated. -
Relative Biodiversity Trends of the Cenozoic Caribbean Region
University of Tennessee, Knoxville TRACE: Tennessee Research and Creative Exchange Doctoral Dissertations Graduate School 12-2003 Relative biodiversity trends of the Cenozoic Caribbean Region : investigations of possible causes and issues of scale using a biostratigraphic database of corals, echinoids, bivalves, and gastropods William Gray Dean Follow this and additional works at: https://trace.tennessee.edu/utk_graddiss Recommended Citation Dean, William Gray, "Relative biodiversity trends of the Cenozoic Caribbean Region : investigations of possible causes and issues of scale using a biostratigraphic database of corals, echinoids, bivalves, and gastropods. " PhD diss., University of Tennessee, 2003. https://trace.tennessee.edu/utk_graddiss/5124 This Dissertation is brought to you for free and open access by the Graduate School at TRACE: Tennessee Research and Creative Exchange. It has been accepted for inclusion in Doctoral Dissertations by an authorized administrator of TRACE: Tennessee Research and Creative Exchange. For more information, please contact [email protected]. To the Graduate Council: I am submitting herewith a dissertation written by William Gray Dean entitled "Relative biodiversity trends of the Cenozoic Caribbean Region : investigations of possible causes and issues of scale using a biostratigraphic database of corals, echinoids, bivalves, and gastropods." I have examined the final electronic copy of this dissertation for form and content and recommend that it be accepted in partial fulfillment of the equirr ements for -
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 Culture, Sexual and Asexual Reproduction, and Growth of the Sea Anemone Nematostella Vectensis
Reference: BiD!. Bull. 182: 169-176. (April, 1992) The Culture, Sexual and Asexual Reproduction, and Growth of the Sea Anemone Nematostella vectensis CADET HAND AND KEVIN R. UHLINGER Bodega Marine Laboratory, P.O. Box 247, Bodega Bay, California 94923 Abstract. Nematostella vectensis, a widely distributed, water at room temperatures (Stephenson, 1928), and un burrowing sea anemone, was raised through successive der the latter conditions some species produce numerous sexual generations at room temperature in non-circulating asexual offspring by a variety of methods (Cary, 1911; seawater. It has separate sexes and also reproduces asex Stephenson, 1929). More recently this trait has been used ually by transverse fission. Cultures of animals were fed to produce clones ofgenetically identical individuals use Artemia sp. nauplii every second day. Every eight days ful for experimentation; i.e., Haliplanella luciae (by Min the culture water was changed, and the anemones were asian and Mariscal, 1979), Aiptasia pulchella (by Muller fed pieces of Mytilus spp. tissue. This led to regular Parker, 1984), and Aiptasia pallida (by Clayton and Las spawning by both sexes at eight-day intervals. The cultures ker, 1984). We now add one more species to this list, remained reproductive throughout the year. Upon namely Nematostella vectensis Stephenson (1935), a small, spawning, adults release either eggs embedded in a gelat burrowing athenarian sea anemone synonymous with N. inous mucoid mass, or free-swimming sperm. In one ex pellucida Crowell (1946) (see Hand, 1957). periment, 12 female isolated clonemates and 12 male iso Nematostella vectensis is an estuarine, euryhaline lated clonemates were maintained on the 8-day spawning member ofthe family Edwardsiidae and has been recorded schedule for almost 8 months. -
THE OCCURRENCE of BRITISH APL YSIA by Ursula M
795 THE OCCURRENCE OF BRITISH APL YSIA By Ursula M. Grigg1 From the Plymouth Laboratory (Plates I and II and Text-figs. 1-3) INTRODUCTION On 13 November 1947 a specimen of the sea hare, Aplysia depilans L., which had been trawled in Babbacombe Bay, was sent to the Plymouth Laboratory. When it was realized that the animal was not the common A. punctata Cuv., collecting trips to likely places were undertaken in the hope of finding more. No others were found, but on one of the expeditions Dr D. P. Wilson picked up a specimen of A. limacina L. Both A. depilans and A. limacina are found in the Mediterranean and on the west coast of Europe: A. depilans has been found in British seas before, but so far as is known A. limacinahas not. These occurrences provide the main reason for publishing this study. The paper also includes an account of the distribution of aplysiidsin British waters and a review of the controversy over the identity of large specimens. As the animals are not usually described in natural history books, notes on the field characters are added. I would like to thank the Director of the Plymouth Laboratory for affording me laboratory and collecting facilities and for his interest in the work. I am most grateful to Dr G. Bacci, who went to much trouble to send me specimens from Naples; to Dr W. J. Rees, who arranged for me to have access to the British Museum collection; to Dr D. P. Wilson, who has provided the photographs of A. -
Biodiversity of Chilean Sea Anemones (Cnidaria: Anthozoa): Distribution Patterns and Zoogeographic Implications, Including New Records for the Fjord Region*
Invest. Mar., Valparaíso, 34(2): 23-35, 2006 Biogeography of Chilean sea anemones 23 Biodiversity of Chilean sea anemones (Cnidaria: Anthozoa): distribution patterns and zoogeographic implications, including new records for the fjord region* Verena Häussermann Fundación Huinay, Departamento de Biología Marina, Universidad Austral de Chile Casilla 567, Valdivia, Chile ABSTRACT. The present paper provides a complete zoogeographical analysis of the sea anemones (Actiniaria and Corallimorpharia) of continental Chile. The species described in the primary literature are listed, including depth and distribution records. Records and the taxonomic status of many eastern South Pacific species are doubtful and need revision and confirmation. Since 1994, we have collected more than 1200 specimens belonging to at least 41 species of Actiniaria and Corallimorpharia. We sampled more than 170 sites along the Chilean coast between Arica (18°30’S, 70°19’W) and the Straits of Magellan (53°36’S, 70°56’W) from the intertidal to 40 m depth. The results of three recent expeditions to the Guaitecas Islands (44°S) and the Central Patagonian Zone (48°-52°S) are included in this study. In the fjord Comau, an ROV was used to detect the bathymetrical distribution of sea anemones down to 255 m. A distribution map of the studied shallow water sea anemones is given. The northern part of the fjord region is inhabited by the most species (27). The results show the continuation of species characteristic for the exposed coast south of 42°S and the joining of typical fjord species at this latitude. This differs from the classical concept of an abrupt change in the faunal composition south of 42°S. -
Utility of H3-Genesequences for Phylogenetic Reconstruction – a Case Study of Heterobranch Gastropoda –*
Bonner zoologische Beiträge Band 55 (2006) Heft 3/4 Seiten 191–202 Bonn, November 2007 Utility of H3-Genesequences for phylogenetic reconstruction – a case study of heterobranch Gastropoda –* Angela DINAPOLI1), Ceyhun TAMER1), Susanne FRANSSEN1), Lisha NADUVILEZHATH1) & Annette KLUSSMANN-KOLB1) 1)Department of Ecology, Evolution and Diversity – Phylogeny and Systematics, J. W. Goethe-University, Frankfurt am Main, Germany *Paper presented to the 2nd International Workshop on Opisthobranchia, ZFMK, Bonn, Germany, September 20th to 22nd, 2006 Abstract. In the present study we assessed the utility of H3-Genesequences for phylogenetic reconstruction of the He- terobranchia (Mollusca, Gastropoda). Therefore histone H3 data were collected for 49 species including most of the ma- jor groups. The sequence alignment provided a total of 246 sites of which 105 were variable and 96 parsimony informa- tive. Twenty-four (of 82) first base positions were variable as were 78 of the third base positions but only 3 of the se- cond base positions. H3 analyses showed a high codon usage bias. The consistency index was low (0,210) and a substitution saturation was observed in the 3r d codon position. The alignment with the translation of the H3 DNA sequences to amino-acid sequences had no sites that were parsimony-informative within the Heterobranchia. Phylogenetic trees were reconstructed using maximum parsimony, maximum likelihood and Bayesian methodologies. Nodilittorina unifasciata was used as outgroup. The resolution of the deeper nodes was limited in this molecular study. The data themselves were not sufficient to clar- ify phylogenetic relationships within Heterobranchia. Neither the monophyly of the Euthyneura nor a step-by-step evo- lution by the “basal” groups was supported. -
Marine Drugs ISSN 1660-3397
Mar. Drugs 2004, 2, 123-146 Marine Drugs ISSN 1660-3397 www.mdpi.net/marinedrugs/ Review Biomedical Compounds from Marine organisms Rajeev Kumar Jha 1,* and Xu Zi-rong 2 1 Ph. D. scholar, College of Animal Sciences, Zhejiang University, Hangzhou-310029, P. R. of China, Tel. (+86) 571-86091821, Fax. (+86) 571-86091820 2 Director, College of Animal Sciences, Zhejiang University, Hangzhou-310029, P.R. of China * Author to whom all correspondence should be addressed: e-mail: [email protected], [email protected] Received: 17 May 2004 / Accepted: 1 August 2004 / Published: 25 August 2004 Abstract: The Ocean, which is called the ‘mother of origin of life’, is also the source of structurally unique natural products that are mainly accumulated in living organisms. Several of these compounds show pharmacological activities and are helpful for the invention and discovery of bioactive compounds, primarily for deadly diseases like cancer, acquired immuno-deficiency syndrome (AIDS), arthritis, etc., while other compounds have been developed as analgesics or to treat inflammation, etc. The life- saving drugs are mainly found abundantly in microorganisms, algae and invertebrates, while they are scarce in vertebrates. Modern technologies have opened vast areas of research for the extraction of biomedical compounds from oceans and seas. Key Words: Biomedical compounds, ocean, anti-cancer metabolite, anti-HIV metabolite Mar. Drugs 2004, 2 124 Introduction Marine biotechnology is the science in which marine organisms are used in full or partially to make or modify products, to improve plants or animals or to develop microorganisms for specific uses. With the help of different molecular and biotechnological techniques, humans have been able to elucidate many biological methods applicable to both aquatic and terrestrial organisms.