A PDF of How Long Animals Live: the Life Spans of 50 Animals

Total Page:16

File Type:pdf, Size:1020Kb

A PDF of How Long Animals Live: the Life Spans of 50 Animals How Long Animals Live THE LIFE SPANS OF 50 ANIMALS Mammals Amphibians Reptiles Birds Fish Echinoderms Mollusks Worms Sponges Cnidarians Arthropods HOUSE MOUSE Mus musculus PIGEON FOWLER’S TOAD Columba livia Anaxyrus fowleri 1 (YEAR) 5 KANGAROO SQUIRREL (WESTERN GREY) (EASTERN GREY) Macropus Sciurus carolinensis fuliginosus RATTLESNAKE PRONGHORN EMU CHICKEN CHEETAH (EASTERN Antilocpra Dromaius Gallus gallus Acinonyx 6 DOG americana novaehollandiae domesticus jubatus Canis lupus DIAMONDBACK) familiaris Crotalus 10 adamanteus 13 15 COW AMERICAN BISON Bos taurus Bison bison SOUTHERN TWO-TOED SLOTH CHANNEL RED-CROWNED GRIZZLY BEAR BOBCAT Choloepus CATFISH CRANE Ursus arctos ssp. Lynx rufus 20 didactylus Ictalurus Grus japonensis punctatus TIGER Panthera tigris 30 25 POLAR BEAR HORSE Ursus maritimus Equus ferus caballus NAKED MOLE RAT BURMESE ROCK Heterocephalus glaber PYTHON ORANGUTAN Python molurus Pongo abelii, bivattatus 50 Pongo pygmaeus One New York Koi have been specimen, reported to live George, lived between 100 to be 140 and 200 years years old. in captivity. 45 LOBSTER AMERICAN ALLIGATOR KOI ASIAN ELEPHANT ANDEAN CONDOR Nephropidae Alligator mississippiensis Cyprinus Elephas maximus Vultur gryphus (family) rubrofuscus BALD EAGLE JAPANESE GIANT RADIATED TORTOISE TUATARA Haliaeetus SALAMANDER Geochelone radiata Sphenodon GREATER GREEN-WINGED Ieucocephalus Andrias japonicus 50 These blind punctatus FLAMINGO MACAW cave Phoenicopterus Ara chloroptera salamanders roseus can live to 100. OLM Proteus anguinus 60 58 The oldest recorded specimen lived to 122. HUMAN GALÁPAGOS RED SEA URCHIN Homo sapiens TORTOISE Mesocentrotus FRESHWATER Chelonoidis nigra franciscanus 79 PEARL MUSSEL 100 Margaritifera margaritifera 130 One geoduck lived to GEODUCK 168. Panopea 140 generosa BOWHEAD WHALE Balaena mysticetus 200 ROUGHEYE ROCKFISH Sebastes aleutianus ALDABRA 205 GIANT TORTOISE Aldabrachelys gigantea 255 Specimens studied were estimated to be between 272 and 512 years old. 250 A 507-year-old clam, DEEP-SEA TUBE WORM “Ming,” died in 2006. 272 Lamellibrachia luymesi GREENLAND SHARK OCEAN QUAHOG Somniosus microcephalus Arctica islandica 507 GIANT BARREL SPONGE Xestospongia muta 2,300 BLACK CORAL Leiopathes glaberrima 4,309 IMMORTAL JELLYFISH This species can revert Turritopsis dohrnii from sexual maturity to a sexually immature, colonial stage and repeat the process indefinitely. SOURCES: nationalzoo.si.edu https://www.darwinfoundation.org wikipedia.org https://www.nationalgeographic.com/news/2016/07/animals-oldest-sponges-whales-fish/ https://marinebio.org/ https://tpwd.texas.gov/publications/nonpwdpubs/young_naturalist/animals/animal_life_spans/.
Recommended publications
  • The Zinc-Mediated Sulfide-Binding Mechanism of Hydrothermal Vent Tubeworm 400-Kda Hemoglobin
    Cah. Biol. Mar. (2006) 47 : 371-377 The zinc-mediated sulfide-binding mechanism of hydrothermal vent tubeworm 400-kDa hemoglobin Jason F. FLORES1* and Stéphane M. HOURDEZ2 (1) Department of Biology, The Pennsylvania State University *Corresponding author: The University of North Carolina at Charlotte, Department of Biology, 9201 University City Boulevard, Charlotte, NC 28223, USA, FAX: 704-687-3128, E-mail: [email protected] (2) Université Pierre & Marie Curie-Paris 6, CNRS-UMR 7144 AD2M, Equipe Ecophysiologie Adaptation et Evolution Moleculaires, Station Biologique de Roscoff, 29680 Roscoff, France Abstract: Hydrothermal vent and cold seep tubeworms possess two hemoglobin (Hb) types, a 3600-kDa hexagonal bilayer Hb as well as a 400-kDa spherical Hb. Both Hbs can reversibly and simultaneously bind and transport oxygen and hydrogen sulfide used by the worm’s endosymbiotic bacteria to fix carbon. The vestimentiferan 400-kDa Hb has been shown to consist of 24 polypeptide chains and 12 zinc ions that are bound to specific amino acids within the six A2 globin chains of the molecule. Flores et al. (2005) determined that the ligated zinc ions were directly involved in the sulfide binding mechanism of this Hb. This discovery contradicted previous work suggesting that free-cysteine residues were the sole sulfide binding mechanism of the 400-kDa Hb. In the present study, we investigated the effects of acidic pH pretreatment and zinc chelator concentrations on the binding of sulfide by the Hb. We show that acidic pH pretreatment, as well as NEM capping of free-cysteines, does not affect sulfide binding by the purified Hb.
    [Show full text]
  • Geo-Biological Coupling of Authigenic Carbonate Formation and Autotrophic Faunal Colonization at Deep-Sea Methane Seeps II. Geo-Biological Landscapes
    Chapter 3 Geo-Biological Coupling of Authigenic Carbonate Formation and Autotrophic Faunal Colonization at Deep-Sea Methane Seeps II. Geo-Biological Landscapes TakeshiTakeshi Naganuma Naganuma Additional information is available at the end of the chapter http://dx.doi.org/10.5772/intechopen.78978 Abstract Deep-sea methane seeps are typically shaped with authigenic carbonates and unique biomes depending on methane-driven and methane-derived metabolisms. Authigenic carbonates vary in δ13C values due probably to 13δC variation in the carbon sources (directly carbon dioxide and bicarbonate, and ultimately methane) which is affected by the generation and degradation (oxidation) of methane at respective methane seeps. Anaerobic oxidation of methane (AOM) by specially developed microbial consortia has significant influences on the carbonate13 δ C variation as well as the production of carbon dioxide and hydrogen sulfide for chemoautotrophic biomass production. Authigenesis of carbonates and faunal colonization are thus connected. Authigenic carbonates also vary in Mg contents that seem correlated again to faunal colonization. Among the colonizers, mussels tend to colonize low δ13C carbonates, while gutless tubeworms colonize high- Mg carbonates. The types and varieties of such geo-biological landscapes of methane seeps are overviewed in this chapter. A unique feature of a high-Mg content of the rock- tubeworm conglomerates is also discussed. Keywords: lithotrophy, chemoautotrophy, thiotrophy, methanotrophy, stable carbon isotope, δ13C, isotope fractionation, Δ13C, calcite, dolomite, anaerobic oxidation of methane (AOM), sulfate-methane transition zone (SMTZ), Lamellibrachia tubeworm, Bathymodiolus mussel, Calyptogena clam 1. Introduction Aristotle separated the world into two realms, nature and living things (originally animals), the latter having structures, processes, and functions of spontaneous formation and voluntary © 2016 The Author(s).
    [Show full text]
  • Reproductive Ecology of Vestimentifera (Polychaeta: Siboglinidae) from Hydrothermal Vents and Cold Seeps
    University of Southampton Research Repository ePrints Soton Copyright © and Moral Rights for this thesis are retained by the author and/or other copyright owners. A copy can be downloaded for personal non-commercial research or study, without prior permission or charge. This thesis cannot be reproduced or quoted extensively from without first obtaining permission in writing from the copyright holder/s. The content must not be changed in any way or sold commercially in any format or medium without the formal permission of the copyright holders. When referring to this work, full bibliographic details including the author, title, awarding institution and date of the thesis must be given e.g. AUTHOR (year of submission) "Full thesis title", University of Southampton, name of the University School or Department, PhD Thesis, pagination http://eprints.soton.ac.uk University of Southampton Reproductive Ecology of Vestimentifera (Polychaeta: Siboglinidae) from Hydrothermal Vents and Cold Seeps PhD Dissertation submitted by Ana Hil´ario to the Graduate School of the National Oceanography Centre, Southampton in partial fulfillment of the requirements for the degree of Doctor of Philosophy June 2005 Graduate School of the National Oceanography Centre, Southampton This PhD dissertation by Ana Hil´ario has been produced under the supervision of the following persons Supervisors Prof. Paul Tyler and Dr Craig Young Chair of Advisory Panel Dr Martin Sheader Member of Advisory Panel Dr Jonathan Copley I hereby declare that no part of this thesis has been submitted for a degree to the University of Southampton, or any other University, at any time previously. The material included is the work of the author, except where expressly stated.
    [Show full text]
  • The First Record of the Genus Lamellibrachia (Siboglinidae
    J. Earth Syst. Sci. (2021) 130:94 Ó Indian Academy of Sciences https://doi.org/10.1007/s12040-021-01587-1 (0123456789().,-volV)(0123456789().,-volV) The Brst record of the genus Lamellibrachia (Siboglinidae) tubeworm along with associated organisms in a chemosynthetic ecosystem from the Indian Ocean: A report from the Cauvery–Mannar Basin 1, 1 1 1 AMAZUMDAR *, P DEWANGAN ,APEKETI ,FIROZ BADESAAB , 1,5 1,6 1 1,6 MOHD SADIQUE ,KALYANI SIVAN ,JITTU MATHAI ,ANKITA GHOSH , 1,6 1,5 2 1,6 1 AZATALE ,SPKPILLUTLA ,CUMA ,CKMISHRA ,WALSH FERNANDES , 3 4 ASTHA TYAGI and TANOJIT PAUL 1Gas Hydrate Research Group, CSIR-National Institute of Oceanography, Dona Paula, Goa 403 004, India. 2Kerala University of Fisheries and Ocean Studies, Kochi, Kerala 682 506, India. 3K.J. Somaiya College of Science and Commerce, University of Mumbai, Mumbai, Maharashtra 400 077, India. 4Manipal Institute of Technology, Manipal, Karnataka 576 104, India. 5School of Earth, Ocean, and Atmospheric Sciences, Goa University, Taleigao Plateau, Goa 403 001, India. 6Academy of ScientiBc and Innovative Research (AcSIR), Ghaziabad, Uttar Pradesh 201 002, India. *Corresponding author. e-mail: [email protected] MS received 2 October 2020; revised 23 January 2021; accepted 25 January 2021 Here, we report for the Brst time, the genus Lamellibrachia tubeworm and associated chemosynthetic ecosystem from a cold-seep site in the Indian Ocean. The discovery of cold-seep was made oA the Cauvery–Mannar Basin onboard ORV Sindhu Sadhana (SSD-070; 13th to 22nd February 2020). The chemosymbiont bearing polychaete worm is also associated with squat lobsters (Munidposis sp.) and Gastropoda belonging to the family Buccinidae.
    [Show full text]
  • A Microbiological and Biogeochemical Investigation of the Cold Seep
    Deep Sea Research Part I: Oceanographic Archimer Research Papers http://archimer.ifremer.fr August 2014, Volume 90, Pages 105-114 he publisher Web site Webpublisher he http://dx.doi.org/10.1016/j.dsr.2014.05.006 © 2014 Elsevier Ltd. All rights reserved. A microbiological and biogeochemical investigation of the cold seep is available on t on available is tubeworm Escarpia southwardae (Annelida: Siboglinidae): Symbiosis and trace element composition of the tube Sébastien Duperrona, *, Sylvie M. Gaudrona, Nolwenn Lemaitreb, c, d, Germain Bayonb authenticated version authenticated - a Sorbonne Universités, Université Pierre et Marie Curie Paris 06, UMR7208 Laboratoire Biologie des Organismes Aquatiques et Ecosystèmes, 7 quai St Bernard, 75005 Paris, France b IFREMER, Unité de Recherche Géosciences Marines, F-29280 Plouzané, France c UEB, Université Européenne de Bretagne, F-35000 Rennes, France d IUEM, Institut Universitaire Européen de la Mer, Université de Bretagne Occidentale, CNRS UMS 3113, IUEM, F-29280 Plouzané, France *: Corresponding author : Sébastien Duperron, t el.: +33 0 1 44 27 39 95 ; fax: +33 0 1 44 27 58 01 ; email address : [email protected] Abstract: Tubeworms within the annelid family Siboglinidae rely on sulfur-oxidizing autotrophic bacterial symbionts for their nutrition, and are among the dominant metazoans occurring at deep-sea hydrocarbon seeps. Contrary to their relatives from hydrothermal vents, sulfide uptake for symbionts occurs within the anoxic subsurface sediment, in the posterior „root‟ region of the animal. This study reports on an integrated microbiological and geochemical investigation of the cold seep tubeworm Escarpia southwardae collected at the Regab pockmark (Gulf of Guinea). Our aim was to further constrain the links between the animal and its symbiotic bacteria, and their environment.
    [Show full text]
  • Genomic Adaptations to Chemosymbiosis in the Deep-Sea Seep-Dwelling Tubeworm Lamellibrachia Luymesi Yuanning Li1,2* , Michael G
    Li et al. BMC Biology (2019) 17:91 https://doi.org/10.1186/s12915-019-0713-x RESEARCH ARTICLE Open Access Genomic adaptations to chemosymbiosis in the deep-sea seep-dwelling tubeworm Lamellibrachia luymesi Yuanning Li1,2* , Michael G. Tassia1, Damien S. Waits1, Viktoria E. Bogantes1, Kyle T. David1 and Kenneth M. Halanych1* Abstract Background: Symbiotic relationships between microbes and their hosts are widespread and diverse, often providing protection or nutrients, and may be either obligate or facultative. However, the genetic mechanisms allowing organisms to maintain host-symbiont associations at the molecular level are still mostly unknown, and in the case of bacterial-animal associations, most genetic studies have focused on adaptations and mechanisms of the bacterial partner. The gutless tubeworms (Siboglinidae, Annelida) are obligate hosts of chemoautotrophic endosymbionts (except for Osedax which houses heterotrophic Oceanospirillales), which rely on the sulfide- oxidizing symbionts for nutrition and growth. Whereas several siboglinid endosymbiont genomes have been characterized, genomes of hosts and their adaptations to this symbiosis remain unexplored. Results: Here, we present and characterize adaptations of the cold seep-dwelling tubeworm Lamellibrachia luymesi, one of the longest-lived solitary invertebrates. We sequenced the worm’s ~ 688-Mb haploid genome with an overall completeness of ~ 95% and discovered that L. luymesi lacks many genes essential in amino acid biosynthesis, obligating them to products provided by symbionts. Interestingly, the host is known to carry hydrogen sulfide to thiotrophic endosymbionts using hemoglobin. We also found an expansion of hemoglobin B1 genes, many of which possess a free cysteine residue which is hypothesized to function in sulfide binding.
    [Show full text]
  • Phylogenomics of Tubeworms (Siboglinidae, Annelida) and Comparative Performance of Different Reconstruction Methods
    Zoologica Scripta Phylogenomics of tubeworms (Siboglinidae, Annelida) and comparative performance of different reconstruction methods YUANNING LI,KEVIN M. KOCOT,NATHAN V. WHELAN,SCOTT R. SANTOS,DAMIEN S. WAITS, DANIEL J. THORNHILL &KENNETH M. HALANYCH Submitted: 28 January 2016 Li, Y., Kocot, K.M., Whelan, N.V., Santos, S.R., Waits, D.S., Thornhill, D.J. & Halanych, Accepted: 18 June 2016 K.M. (2016). Phylogenomics of tubeworms (Siboglinidae, Annelida) and comparative perfor- doi:10.1111/zsc.12201 mance of different reconstruction methods. —Zoologica Scripta, 00: 000–000. Deep-sea tubeworms (Annelida, Siboglinidae) represent dominant species in deep-sea chemosynthetic communities (e.g. hydrothermal vents and cold methane seeps) and occur in muddy sediments and organic falls. Siboglinids lack a functional digestive tract as adults, and they rely on endosymbiotic bacteria for energy, making them of evolutionary and physi- ological interest. Despite their importance, inferred evolutionary history of this group has been inconsistent among studies based on different molecular markers. In particular, place- ment of bone-eating Osedax worms has been unclear in part because of their distinctive biol- ogy, including harbouring heterotrophic bacteria as endosymbionts, displaying extreme sexual dimorphism and exhibiting a distinct body plan. Here, we reconstructed siboglinid evolutionary history using 12 newly sequenced transcriptomes. We parsed data into three data sets that accommodated varying levels of missing data, and we evaluate effects of miss- ing data on phylogenomic inference. Additionally, several multispecies-coalescent approaches and Bayesian concordance analysis (BCA) were employed to allow for a compar- ison of results to a supermatrix approach. Every analysis conducted herein strongly sup- ported Osedax being most closely related to the Vestimentifera and Sclerolinum clade, rather than Frenulata, as previously reported.
    [Show full text]
  • Depth-Dependent Gene Flow in Gulf of Mexico Cold Seep Lamellibrachia
    Hydrobiologia Archimer September 2014, Volume 736, Issue 1, pp 139-154 http://dx.doi.org/10.1007/s10750-014-1900-y http://archimer.ifremer.fr © Springer International Publishing Switzerland 2014 The original publication is available at http://www.springerlink.com is available on the publisher Web site Webpublisher the on available is Depth-dependent gene flow in Gulf of Mexico cold seep Lamellibrachia tubeworms (Annelida, Siboglinidae) Dominique A. Cowart1, 2, *, Kenneth M. Halanych3, Stephen W. Schaeffer1, Charles R. Fisher1 authenticated version authenticated - 1 Department of Biology, The Pennsylvania State University, 208 Erwin W. Mueller Laboratory, University Park, PA, 16801, USA 2 Unité Environnement Profond - DEEP du, Département des Ressources physiques et Ecosystèmes de Fond de mer (REM), IFREMER - Institut Français de Recherche pour l’Exploitation de la MER, B.P. 70, 29280, Plouzané, finitive publisher finitive France 3 Department of Biological Sciences, Auburn University, 101 Rouse Life Sciences Building, Auburn, AL, 36849, USA *: Corresponding author : Dominique A. Cowart, email address : [email protected] Abstract: Lamellibrachia vestimentiferan tubeworms form aggregations at hydrocarbon cold seeps in the deep Gulf of Mexico (GoM), creating structures that provide living space for other fauna. In the GoM, three Lamellibrachia taxa vary in morphology and depth ranges: Lamellibrachia luymesi (300–950 m), Lamellibrachia sp. 1 (950–2,604 m), and Lamellibrachia sp. 2 (1,175–3,304 m). While Lamellibrachia sp. 2 is consistently identified as a separate species, L. luymesi and sp. 1 cannot be discriminated using barcoding markers cytochrome oxidase subunit 1 (COI) and large ribosomal subunit rDNA (16S). To determine if limited gene flow was a factor in the formation of these taxa, we employed more quickly evolving markers, including mitochondrial cytochrome B (CYTB), hemoglobin subunit B2 intron (HbB2i), and six polymorphic microsatellites; microsatellites were amplified across 45 L.
    [Show full text]
  • Open SLP Final Dissertation.Pdf
    The Pennsylvania State University The Graduate School Intercollege Graduate Degree Program in Ecology THE INFLUENCE OF HABITAT-MODIFYING FAUNA ON THE COMMUNITY ECOLOGY AT DEEP COLD-SEEPS IN THE GULF OF MEXICO A Dissertation in Ecology by Stephanie A. Lessard-Pilon © 2010 Stephanie A. Lessard-Pilon Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy December 2010 The dissertation of Stephanie A. Lessard-Pilon was reviewed and approved* by the following: Charles R. Fisher Professor of Biology Dissertation Advisor Chair of Committee Iliana Baums Assistant Professor of Biology Denice Wardrop Associate Professor of Ecology and Geography Alexander Klippel Assistant Professor of Geographical Information Sciences David Eissenstat Professor of Woody Plant Physiology Chair of the Intercollege Graduate Degree Program in Ecology *Signatures are on file in the Graduate School ii ABSTRACT Cold seeps commonly occur on continental margins worldwide where hydrocarbons and reduced chemicals emerge from the seafloor. In the Gulf of Mexico, habitat-modifying fauna frequently dominate cold seep communities. Examples of these fauna include large aggregations of mussels and tubeworms as well as mobile animals such as burrowing spatangoid urchins. As seepage declines, cold-water corals settle on authigenic carbonate rock and eventually form large, long-lasting coral reefs that support diverse coral-associated fauna. In this dissertation, physical collections and non- destructive sampling tools such as image and GIS analyses were used to characterize newly discovered cold seep and coral communities as well as examine the mechanisms that influence the ecology of deep seeps. Chapters 2 and 3 examine interspecific interactions and habitat provision and modification by different foundation fauna, such as tubeworms, mussels and corals, which harbor unique communities.
    [Show full text]
  • Geophysical and Geochemical Controls on the Megafaunal Community of a High Arctic Cold Seep
    Biogeosciences, 15, 4533–4559, 2018 https://doi.org/10.5194/bg-15-4533-2018 © Author(s) 2018. This work is distributed under the Creative Commons Attribution 4.0 License. Geophysical and geochemical controls on the megafaunal community of a high Arctic cold seep Arunima Sen1, Emmelie K. L. Åström1, Wei-Li Hong1,2, Alexey Portnov1,3, Malin Waage1, Pavel Serov1, Michael L. Carroll1,4, and JoLynn Carroll4 1Centre for Arctic Gas Hydrate, Environment and Climate (CAGE), Department of Geosciences, UiT The Arctic University of Norway, Tromsø, 9037, Norway 2Geological Survey of Norway (NGU), Trondheim, 7491, Norway 3School of Earth Sciences, Ohio State University, Columbus, Ohio, 43210, USA 4Akvaplan-niva, FRAM – High North Research Centre for Climate and the Environment, Tromsø, 9296, Norway Correspondence: Arunima Sen ([email protected]) Received: 15 December 2017 – Discussion started: 11 January 2018 Revised: 5 July 2018 – Accepted: 6 July 2018 – Published: 25 July 2018 Abstract. Cold-seep megafaunal communities around gas sediment methanotrophic community that maintains high hydrate mounds (pingos) in the western Barents Sea sulfide fluxes and serves as a carbon source for frenulate (76◦ N, 16◦ E, ∼ 400m depth) were investigated with high- worms. The pingo currently lacking a large subsurface gas resolution, geographically referenced images acquired with source and lower methane concentrations likely has lower an ROV and towed camera. Four pingos associated with sulfide flux rates and limited amounts of carbon, insufficient seabed methane release hosted diverse biological commu- to support large populations of frenulates. Two previously nities of mainly nonseep (background) species including undocumented behaviors were visible through the images: commercially important fish and crustaceans, as well as grazing activity of snow crabs on bacterial mats, and seafloor a species new to this area (the snow crab Chionoecetes crawling of Nothria conchylega onuphid polychaetes.
    [Show full text]
  • The Pennsylvania State University the Graduate School Department of Biology the ECOLOGY of SEEP COMMUNITIES in the GULF of MEXIC
    The Pennsylvania State University The Graduate School Department of Biology THE ECOLOGY OF SEEP COMMUNITIES IN THE GULF OF MEXICO: BIODIVERSITY AND ROLE OF LAMELLIBRACHIA LUYMESI A Thesis in Biology by Erik E. Cordes Copyright 2004 Erik E. Cordes Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy December 2004 The thesis of Erik E. Cordes was reviewed and approved* by the following: Chuck Fisher Professor of Biology Thesis Advisor Chair of Committee Katriona Shea Assistant Professor of Biology Peter Hudson Willaman Professor of Biology Michael Arthur Professor of Geosciences Doug Cavener Professor of Biology Head of the Department of Biology *Signatures are on file in the Graduate School iii ABSTRACT Cold seeps are common habitats along the continental margin in all the world’s oceans. In the Gulf of Mexico, they occur in the salt dome province of the upper Louisiana slope, and along the base of the continental rise from Florida to Texas. Some of the most common inhabitants of cold seeps are vestimentiferan tubeworms which are entirely reliant on internal sulfide-oxidizing chemoautotrophic symbionts for their nutrition. The most common vestimentiferan tubeworm of the upper Louisiana slope is Lamellibrachia luymesi. This, and other species of tubeworms, form aggregations of hundreds to thousands of individuals which harbor a diverse community. In this study, a total of 40 tubeworm aggregation and mussel bed samples containing at least 171 macrofaunal species were collected at seeps from 520 to 3300 m depth. The upper Louisiana slope communities progress through a predictable sequence of successional stages. The youngest aggregations contain high biomass communities dominated by endemic species, with biomass decreasing over time as the relative abundance of non- endemic fauna in upper trophic levels increases.
    [Show full text]
  • Open Thesis.Pdf
    The Pennsylvania State University The Graduate School The Eberly College of Science ECOLOGICAL PHYSIOLOGY AND BIOCHEMISTRY OF SULFIDE ACQUISITION BY TWO HYDROCARBON SEEP VESTIMENTIFERANS, LAMELLIBRACHIA LUYMESI AND SEEPIOPHILA JONESI A Thesis in Biology by John Karl Freytag 2003 John Karl Freytag Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy December 2003 The thesis of John Karl Freytag has been reviewed and approved* by the following: Charles R. Fisher Professor of Biology Thesis Adviser Chair of Committee James Marden Associate Professor of Biology Roger Koide Professor of Horticultural Ecology Michael A. Arthur Professor of Geosciences James J. Childress Professor Ecology, Evolution, and Marine Biology The University of California Santa Barbara Special Signatory Douglas R. Cavenar Professor of Biology Head of the Department of Biology *Signatures are on file in the Graduate School. iii Abstract Two species of vestimentiferan tubeworm, Lamellibrachia luymesi and Seepiophila jonesi, co-occur in aggregations at northern Gulf of Mexico cold hydrocarbon seep sites. Like all vestimentiferans, L. luymesi and S. jonesi obtain nutrition from sulfide-oxidizing chemoautotrophic bacterial endosymbionts that must be supplied with sulfide, oxygen, and carbon dioxide. Results from previous studies that examined the environmental sulfide chemistry of northern Gulf of Mexico hydrocarbon seeps suggested that the ecological physiology of seep tubeworms was not analogous to that of the hydrothermal vent tubeworm, Riftia pachyptila, which obtains sulfide, oxygen, and carbon dioxide across the anterior plume portion of its body. The focus of this study was to better understand the physiological ecology of environmental sulfide acquisition of L. luymesi and S.
    [Show full text]