Download or read book Phylogeny of Ophryotrocha Annelida Dorvilleidae Revisited with Description of Six New Species from Eastern Pacific Seeps and Whalefalls written by Jessica Pruitt and published by . This book was released on 2021 with total page 118 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dorvilleidae is a diverse group of annelids, well known from deep sea chemosynthetic environments. Of the dorvilleids, Ophryotrocha is the most speciose genus, but also contains several cryptic species and has been shown to be paraphyletic in many studies. Twenty-one new species of Ophryotrocha are recognized in this study from deep sea methane seep and whale fall environments in the northeast Pacific Ocean, six of which are being formally described. Eight previously known-to-science species were also recovered. The Ophryotrocha specimens were studied using morphology and phylogenetic analyses of DNA sequences from mitochondrial (cytochrome c oxidase subunit I, 16S rRNA, and cytochrome b) and nuclear (18S rRNA and histone 3) genes. The current Ophryotrocha phylogeny is examined and the issue of its paraphyly is addressed, but cannot be resolved in this study.
Download or read book Phylogeny Biogeography and Systematics of Pacific Vent Methane Seep and Whalefall Parougia Dorvilleidae Annelida with 8 New Species written by Nicole Kristi Yen and published by . This book was released on 2017 with total page 105 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dorvilleidae is a well-represented group of annelids that are commonly associated with chemosynthetic habitats. Currently, there are 11 described Parougia species, of which two are found at vents or seeps: Parougia wolfi and Parougia oregonensis. Eight new Parougia species are recognized and described in this study from collections in the Pacific Ocean, all from >586 m depth at whale-falls, hydrothermal vents, and/or methane seeps. The specimens were studied using morphology and phylogenetic analyses of DNA sequences from mitochondrial (cytochrome c oxidase subunit I, 16S rRNA, and cytochrome b) and nuclear genes (18S rRNA and Histone 3). We found six sympatric Parougia spp., from Hydrate Ridge, Oregon and four Parougia spp. capable of inhabiting different types of chemosynthetic habitats. Two new species had a most remarkable distributional range and depth, from Oregon to Costa Rica seeps (>5500 km; 587-1583m). The dorvilleid genus Ophryotrocha has previously been highlighted as diversifying in the deep-sea environment. Our results emphasize the hitherto unknown diversity of other taxa such as Parougia at these chemosynthetic systems.
Download or read book Ophryotrocha Dorvilleidae Polychaeta Annelida from Deep sea Hydrothermal Vents with the Description of Five New Species written by Dongsheng Zhang and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dorvilleids belonging to Ophryotrocha Claparède & Mecznikow, 1869 are known from deep-sea hydrothermal vents in the Pacific, Atlantic, Indian and Southern Oceans. However, how they colonized and diversified in these ecosystems has not been assessed in detail. Here, a collection of Pacific hydrothermal vent Ophryotrocha was examined using morphology and DNA markers (COI, 16S and H3). Five new species were revealed, largely expanding the diversity of the group at this habitat type. They are Ophryotrocha charlottae sp. nov., O. kailae sp. nov., O. marinae sp. nov., O. pruittae sp. nov. from eastern Pacific, and O. bohnorum sp. nov. from the western Pacific. Phylogenetic analyses based on the concatenated alignments of all three genes suggest vent habitants have been colonized several times independently within Ophryotrocha. One clade of six vent species was recovered, indicative of diversification following a colonization of hydrothermal vents, likely in the eastern Pacific. An Indian Ocean species, O. jiaolongi, was nested inside this clade and was closely related to one of the new species from the Gulf of California, diverging from it by less than 4% on COI.
Download or read book Phylogeny Biogeography and Systematics of Branchipolynoe Polynoidae Annelida with Descriptions of Four New Species from Costa Rican Methane Seeps written by Johanna Irene Lindgren and published by . This book was released on 2017 with total page 67 pages. Available in PDF, EPUB and Kindle. Book excerpt: There are currently four named species of Branchipolynoe, all found living symbiotically in mytilid mussels in the genus Bathymodiolus, which all occur at hydrothermal vents or methane seeps. Here, phylogenetic analyses using mitochondrial (CO1 and 16S) and nuclear (ITS) genes, as well as morphological analysis were conducted on a collection of Branchipolynoe from Pacific Costa Rican methane seeps. This revealed four new species of Branchipolynoe and these are formally described here. These newly discovered species live in three different species of Bathymodiolus mussels (also new) at depths ranging from 1000 m to 1800 m. Branchipolynoe kajsae sp. nov. and Branchipolynoe halliseyae sp. nov. are found in hosts Bathymodiolus billschneideri, B. earlougheri, and B. nancyschneiderae. Branchipolynoe meridae sp. nov. is found in hosts Bathymodiolus earlougheri and B. billschneideri. Branchipolynoe eliseae sp. nov. is found in hosts Bathymodiolus billschneideri and B. nancyschneiderae. The phylogenetic and biogeographical implications of this high sympatric diversity of Branchipolynoe are discussed.
Download or read book New Species and Records of Deep water Orbiniidae Annelida Polychaeta from the Eastern Pacific Continental Slope Abyssal Pacific Ocean and the South China Sea written by James A. Blake and published by . This book was released on 2020 with total page 61 pages. Available in PDF, EPUB and Kindle. Book excerpt: "Abstract: Eighteen species of Orbiniidae, 15 new to science, are reported from deep-sea habitats in the Pacific Ocean and the South China Sea. The collection includes specimens from continental slope and abyssal soft sediments as well as hydrothermal vent and methane seep sites. New collections of Califia calida Hartman, 1957, Naineris uncinata Hartman, 1957, and Phylo nudus (Moore, 1911) allow redescription and new distributional records of these species to be documented. Five species of Leitoscoloplos: L., cliffordi n. sp., L. gordaensis n sp., L. lunulus n. sp., L. sahlingi n. sp., and L. williamsae n. sp. are described together with a new species of Berkeleyia, B. lelievre n. sp., two new species of Scoloplos: S. californiensis n. sp. and S. sparsaciculus n. sp., and a new species of Leodamas, L. bathyalis n. sp. In addition, six new species of Orbiniella are described: O. abyssalis n. sp., O. eugeneruffi n. sp., O. grasslei n. sp., O. longilobata n. sp., O. rugosa n. sp., and O. tumida n. sp. Keywords: Annelida, Gorda Ridge, East Pacific Rise, Cascadia Subduction Zone, Clarion-Clipperton Fracture Zone, hydrothermal vents, methane seeps, Berkeleyia, Califia, Leodamas, Leitoscoloplos, Naineris, Orbiniella, Phylo, Scoloplos"--Page 3.
Download or read book Morphology Molecules Evolution and Phylogeny in Polychaeta and Related Taxa written by Universität Osnabrück and published by Springer Science & Business Media. This book was released on 2006-03-30 with total page 391 pages. Available in PDF, EPUB and Kindle. Book excerpt: Recently, evidence has been accumulated which shows that some of the groups formerly regarded as independent "phyla" such as Pogonophora (now recognized as Siboglinidae), Echiura, Myzostomida and perhaps Sipuncula, are most probably nothing else than greatly modified Annelida. The extreme morphological diversity found especially in Polychaeta displays the plasticity of a simple segmented organisation that basically is nothing else but a serial repetition of identical units. Thus, annelids are highly important to our understanding of fundamental questions about morphological and adaptive diversity, as well as clarifying evolutionary changes and phylogenetic relationships. The book aims to summarize our knowledge on Polychaetes polychaetes and their allies and gives an overview of recent advances gained by studies that employed conventional and modern methods plus, increasingly and importantly, the use of molecular markers and computer-assisted kinship analyses. It also reflects the state of art in polychaete sciences and presents new questions and controversies. As such it will significantly influence the direction of research on Polychaeta and their related taxa.
Download or read book An Integrative Reassessment of Hesionidae Annelida Phyllodocida Phylogeny with Revision of Hesiospina Annelida Hesionidae New Deep sea Genus and Species and New Mitochondrial Genomes written by Tiffany Yin Wong and published by . This book was released on 2023 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Most phylogenetic relationships within Hesionidae remain unresolved to this day. The integrative study herein reassessed the phylogeny of Hesionidae by combining molecular data from Sanger sequencing, morphology, and mitogenomic data from whole genome sequencing. In Chapter 1, we presented the most comprehensive phylogenetic analysis combining molecular and morphological data of Hesionidae to date. Results from our concatenated maximum likelihood analysis of four genes (COI, 16S, 18S, and 28S) recovered Hesiospina--a genus known for their emergent notopodial spines not found in any other hesionids--as non-monophyletic, and the generic diagnosis was emended to include only the shallow water taxa H. aurantiaca and H. similis. To retain monophyly in Hesiospina, we introduced Psamathispina gen. nov. to represent another hesionid group with emergent notopodial spines exclusive to the deep-sea. Psamathispina gen. nov. includes two previously described species transferred from Hesiospina--P. legendrei comb. nov. and P. vestimentifera comb. nov.--and four new species described herein--P. nathani sp. nov., P. raymondi sp. nov., P. tustisonorum sp. nov., and P. yingyiae sp. nov. In Chapter 2, we constructed the first six complete mitochondrial genomes for Amphiduros pacificus, Gyptis cf. robertscrippsi, Hesiolyra bergi, Hesiospina cf. similis 2, Leocrates rousei, and Micropodarke dubia, and also the first three partial mitochondrial genomes for Hesiospina aurantiaca, Psamathe fusca, and Psamathispina raymondi. Our phylogenomic analyses, which used a multi-loci dataset of dataset of 13 protein-coding genes (PCGs) and four ribosomal RNA genes (12S, 16S, 18S, and 28S) yielded strong support for the erection of Psamathispina in Chapter 1.
Download or read book Systematics and Diversity of Annelids written by Maria Capa and published by MDPI. This book was released on 2021-08-18 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: In this Special Issue, we address the state of the art of the systematics of the main annelid groups and the improvements in the diversity they hold, with special emphasis on the latest discoveries in well-studied areas, expeditions to unsurveyed areas or environments, or the use of novel techniques that allow for the improvement of biodiversity knowledge. We are hoping that this Special Issue will provide a platform facilitating a review of current knowledge on the subject, identifying current research problems, as well as indicating directions and research trends for the future.
Download or read book Brazilian Deep Sea Biodiversity written by Paulo Yukio Gomes Sumida and published by Springer Nature. This book was released on 2020-10-27 with total page 273 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book presents the biodiversity of the Brazilian deep-sea and its many unique geological and biological features, as well as a review of its ecology, conservation, and future research needs. The deep-sea Brazilian margin has an incredible geological heterogeneity with numerous characteristic seafloor features, and latitudinal changes in marine productivity, oceanographic conditions and biological communities have resulted in very distinct biological assemblages at regional and bathymetric scales. It is a tremendously rich ecosystem in terms of living species, from which many well-known historical tales have originated, and with unique importance for the global climate and humanity. Nevertheless, vast areas of the Brazilian margin have been explored for fishing, oil and gas, and other commodities, likely impacting a variety of deep-sea habitats at scales and intensities yet undetermined. This book is intended for students, scholars, professionals and a wide audience interested in the deep-sea in general and, more specifically, in the South Atlantic deep-sea.
Download or read book Advances in Polychaete Research written by Elin Sigvaldadottir and published by Springer Science & Business Media. This book was released on 2013-06-29 with total page 387 pages. Available in PDF, EPUB and Kindle. Book excerpt: In July 2001 experts from all around the world met in Reykjavik, Iceland to discuss various issues of polychaete biology. In particular the latest developments in cladistic inference of polychaete phylogeny were presented. Some studies applied recent molecular techniques, revealing unknown genetic relationships between the different families of polychaetous annelids. This volume is of interest to specialists and students seeking an introduction to the latest developments in the field of systematics and ecology of polychaetous annelids. This book is one in a series presenting results from the International Polychaete conferences.
Download or read book The Ecology of Deep sea Hydrothermal Vents written by Cindy Van Dover and published by Princeton University Press. This book was released on 2000-03-26 with total page 474 pages. Available in PDF, EPUB and Kindle. Book excerpt: Teeming with weird and wonderful life--giant clams and mussels, tubeworms, "eyeless" shrimp, and bacteria that survive on sulfur--deep-sea hot-water springs are found along rifts where sea-floor spreading occurs. The theory of plate tectonics predicted the existence of these hydrothermal vents, but they were discovered only in 1977. Since then the sites have attracted teams of scientists seeking to understand how life can thrive in what would seem to be intolerable or extreme conditions of temperature and fluid chemistry. Some suspect that these vents even hold the key to understanding the very origins of life. Here a leading expert provides the first authoritative and comprehensive account of this research in a book intended for students, professionals, and general readers. Cindy Lee Van Dover, an ecologist, brings nearly two decades of experience and a lively writing style to the text, which is further enhanced by two hundred illustrations, including photographs of vent communities taken in situ. The book begins by explaining what is known about hydrothermal systems in terms of their deep-sea environment and their geological and chemical makeup. The coverage of microbial ecology includes a chapter on symbiosis. Symbiotic relationships are further developed in a section on physiological ecology, which includes discussions of adaptations to sulfide, thermal tolerances, and sensory adaptations. Separate chapters are devoted to trophic relationships and reproductive ecology. A chapter on community dynamics reveals what has been learned about the ways in which vent communities become established and why they persist, while a chapter on evolution and biogeography examines patterns of species diversity and evolutionary relationships within chemosynthetic ecosystems. Cognate communities such as seeps and whale skeletons come under scrutiny for their ability to support microbial and invertebrate communities that are ecologically and evolutionarily related to hydrothermal faunas. The book concludes by exploring the possibility that life originated at hydrothermal vents, a hypothesis that has had tremendous impact on our ideas about the potential for life on other planets or planetary bodies in our solar system.
Download or read book Oceanography and Marine Biology written by R. N. Gibson and published by CRC Press. This book was released on 2005-06-24 with total page 534 pages. Available in PDF, EPUB and Kindle. Book excerpt: Written by experts actively engaged in the field, . Oceanography and Marine Biology: An Annual Review explores the physical, chemical, and biological aspects of marine science. An essential reference for researchers and students in all fields of marine science, the text contains analyses on cold sleep sediments, unburnt coal in the marine environment, biofiltration and biofouling on artificial structures in Europe, ecology of rafting in marine ecosystems, effects of globalisation in marine environments, and much more. Its consistent presentation and timely topics make it a perennial favorite among researchers and students in all fields of marine science.
Download or read book The Emergence of Whales written by J.G.M. Thewissen and published by Springer Science & Business Media. This book was released on 2013-11-11 with total page 480 pages. Available in PDF, EPUB and Kindle. Book excerpt: Research in whale origins is now in an explosive phase, with a cascade of discoveries adding to our understanding of the evolutionary pattern and a suite of new techniques being applied to address new questions. The objective of this volume is to provide a snapshot of this explosion. The volume paints the scene with a broad brush. Taken together the chapters clearly indicate that cetacean origins is a field that is dynamic, multidisciplinary, and that the end of the explosive phase is not in sight.
Download or read book Secondary Adaptation of Tetrapods to Life in Water written by Jean-Michel Mazin and published by . This book was released on 2001 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Hydrothermal Vents and Processes written by Lindsay Murray Parson and published by Geological Society Publishing House. This book was released on 1995 with total page 430 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Face of the Deep written by Bruce C. Heezen and published by . This book was released on 1971 with total page 694 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Aphroditoidea Annelida Polychaeta of the Mediterranean Sea written by Ruth Barnich and published by . This book was released on 2003 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
