WSN Long Program 2014 FINAL
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Frontiers in Zoology Biomed Central
Frontiers in Zoology BioMed Central Research Open Access Functional chloroplasts in metazoan cells - a unique evolutionary strategy in animal life Katharina Händeler*1, Yvonne P Grzymbowski1, Patrick J Krug2 and Heike Wägele1 Address: 1Zoologisches Forschungsmuseum Alexander Koenig, Adenauerallee 160, 53113 Bonn, Germany and 2Department of Biological Sciences, California State University, Los Angeles, California, 90032-8201, USA Email: Katharina Händeler* - [email protected]; Yvonne P Grzymbowski - [email protected]; Patrick J Krug - [email protected]; Heike Wägele - [email protected] * Corresponding author Published: 1 December 2009 Received: 26 June 2009 Accepted: 1 December 2009 Frontiers in Zoology 2009, 6:28 doi:10.1186/1742-9994-6-28 This article is available from: http://www.frontiersinzoology.com/content/6/1/28 © 2009 Händeler et al; licensee BioMed Central Ltd. This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/2.0), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Abstract Background: Among metazoans, retention of functional diet-derived chloroplasts (kleptoplasty) is known only from the sea slug taxon Sacoglossa (Gastropoda: Opisthobranchia). Intracellular maintenance of plastids in the slug's digestive epithelium has long attracted interest given its implications for understanding the evolution of endosymbiosis. However, photosynthetic ability varies widely among sacoglossans; some species have no plastid retention while others survive for months solely on photosynthesis. We present a molecular phylogenetic hypothesis for the Sacoglossa and a survey of kleptoplasty from representatives of all major clades. We sought to quantify variation in photosynthetic ability among lineages, identify phylogenetic origins of plastid retention, and assess whether kleptoplasty was a key character in the radiation of the Sacoglossa. -
Marine Invertebrate Field Guide
Marine Invertebrate Field Guide Contents ANEMONES ....................................................................................................................................................................................... 2 AGGREGATING ANEMONE (ANTHOPLEURA ELEGANTISSIMA) ............................................................................................................................... 2 BROODING ANEMONE (EPIACTIS PROLIFERA) ................................................................................................................................................... 2 CHRISTMAS ANEMONE (URTICINA CRASSICORNIS) ............................................................................................................................................ 3 PLUMOSE ANEMONE (METRIDIUM SENILE) ..................................................................................................................................................... 3 BARNACLES ....................................................................................................................................................................................... 4 ACORN BARNACLE (BALANUS GLANDULA) ....................................................................................................................................................... 4 HAYSTACK BARNACLE (SEMIBALANUS CARIOSUS) .............................................................................................................................................. 4 CHITONS ........................................................................................................................................................................................... -
The Leptasterias (Echinodermata: Asteroidea) Species Complex: Variation in Reproductive Investment
MARINE ECOLOGY PROGRESS SERIES Vol. 109: 95-98, 1994 Published June 9 Mar. Ecol. Prog. Ser. NOTE The Leptasterias (Echinodermata: Asteroidea) species complex: variation in reproductive investment Sophie B. George' Friday Harbor Laboratories, University of Washington. Friday Harbor. Washington 98250, USA ABSTRACT: Egg diameter, the amount of protein per egg, Egg size, egg numbers, and the organic content of and the number of eggs per individual produced did not differ the eggs may vary within a single spawn of a single between 2 morphologically and genetically distinct species individual, among individuals from the same popula- of seastars, Leptastenas epichlora (Brandt) and L. hexactis (Stimpson). In these 2 closely related sympatric species, vari- tion, and among individuals from different populations abll~tyin egg quality mght be mostly attributed to environ- or species (Emlet et al. 1987, McEdward & Carson 1987, mental factors rather than genetic constraints. George et al. 1990, McEdward & Chia 1991). Closely KEY WORDS Egg size. Egg number. Protein content. Seastar related species can have slmilar egg sizes or a broad range of egg sizes (Emlet et al. 1987). The present paper investigates the use of these reproductive para- The systematics of small six-rayed seastars of the meters to clarify the Leptasterias species complex. genus Leptasterias in the Puget Sound region (Wash- L, epichlora and L. hexactis were used because they ington, USA) has been controversial (Bush 1918, Fisher were the most abundant species in the Puget Sound 1930, Chia 1966a, Kwast et al. 1990). Chia (1966a), region. Kwast et al. (1990). and Stickle et al. (1992) identified 3 Materials and methods. -
JMS 70 1 031-041 Eyh003 FINAL
PHYLOGENY AND HISTORICAL BIOGEOGRAPHY OF LIMPETS OF THE ORDER PATELLOGASTROPODA BASED ON MITOCHONDRIAL DNA SEQUENCES TOMOYUKI NAKANO AND TOMOWO OZAWA Department of Earth and Planetary Sciences, Nagoya University, Nagoya 464-8602,Japan (Received 29 March 2003; accepted 6June 2003) ABSTRACT Using new and previously published sequences of two mitochondrial genes (fragments of 12S and 16S ribosomal RNA; total 700 sites), we constructed a molecular phylogeny for 86 extant species, covering a major part of the order Patellogastropoda. There were 35 lottiid, one acmaeid, five nacellid and two patellid species from the western and northern Pacific; and 34 patellid, six nacellid and three lottiid species from the Atlantic, southern Africa, Antarctica and Australia. Emarginula foveolata fujitai (Fissurellidae) was used as the outgroup. In the resulting phylogenetic trees, the species fall into two major clades with high bootstrap support, designated here as (A) a clade of southern Tethyan origin consisting of superfamily Patelloidea and (B) a clade of tropical Tethyan origin consisting of the Acmaeoidea. Clades A and B were further divided into three and six subclades, respectively, which correspond with geographical distributions of species in the following genus or genera: (AÍ) north eastern Atlantic (Patella ); (A2) southern Africa and Australasia ( Scutellastra , Cymbula-and Helcion)', (A3) Antarctic, western Pacific, Australasia ( Nacella and Cellana); (BÍ) western to northwestern Pacific (.Patelloida); (B2) northern Pacific and northeastern Atlantic ( Lottia); (B3) northern Pacific (Lottia and Yayoiacmea); (B4) northwestern Pacific ( Nipponacmea); (B5) northern Pacific (Acmaea-’ânà Niveotectura) and (B6) northeastern Atlantic ( Tectura). Approximate divergence times were estimated using geo logical events and the fossil record to determine a reference date. -
Feeding Mechanisms in the Gastropod Crepidula Fecunda*
MARINE ECOLOGY PROGRESS SERIES Vol. 234: 171–181, 2002 Published June 3 Mar Ecol Prog Ser Feeding mechanisms in the gastropod Crepidula fecunda* O. R. Chaparro1,**, R. J. Thompson2, S. V. Pereda1 1Instituto de Biología Marina ‘Dr. J. Winter’, Universidad Austral de Chile, Casilla 567, Valdivia, Chile 2Ocean Sciences Centre, Memorial University of Newfoundland, St. John’s, Newfoundland A1C 5S7, Canada ABSTRACT: The gastropod Crepidula fecunda feeds in 2 distinct ways: grazing of the substrate and suspension feeding. The taenioglossan radula plays a role in both processes. In the former, the radula rasps the surface, and the material is immediately ingested. This means of food acquisition is mainly used by motile individuals, i.e. juveniles and adult males. Adult females are sessile, and are only able to rasp the area beneath the head region, severely limiting the amount of food acquired. Females brooding egg capsules are even more restricted, since the area normally grazed is occupied by the capsule mass. The second mode of feeding, suspension feeding, is exhibited by late juveniles and all adults. Suspended particles are captured in mucous nets on the ventral and dorsal surfaces of the single gill lamella. The entrained particles, loosely bound in mucus, are transported by ciliary action to the distal tips of the filaments, which are bulbous. The material accumulates in 2 mucous strings which traverse the ventral surfaces of the filaments at right angles to the filaments along the entire length of the distal margin of the gill. These strings coalesce into a single, thicker string, which is transferred at intervals to a food canal in the neck, where it is twisted into a compact, mucous cord by a spiral action of the neck canal musculature. -
Tesis De Pablo David Vega García
Programa de Estudios de Posgrado CAMBIOS HISTÓRICOS EN LAS POBLACIONES DE ABULÓN AZUL Y AMARILLO EN LA PENÍNSULA DE BAJA CALIFORNIA TESIS Que para obtener el grado de Doctor en Ciencias Uso, Manejo y Preservación de los Recursos Naturales Orientación Biología Marina P r e s e n t a PABLO DAVID VEGA GARCÍA La Paz, Baja California Sur, febrero de 2016 COMITÉ TUTORIAL Dr. Salvador Emilio Lluch Cota Director de Tesis Centro de Investigaciones Biológicas del Noroeste. La Paz, BCS. México. Dra. Fiorenza Micheli Dr. Héctor Reyes Bonilla Co-Tutor Co-Tutor Hopkins Marine Station, Stanford Universidad Autónoma de Baja University. California Sur. Pacific Grove, CA. EEUU. La Paz, BCS. México. Dr. Eduardo Francisco Balart Páez Dr. Pablo Del Monte Luna Co-Tutor Co-Tutor Centro de Investigaciones Biológicas Centro de Interdisciplinario de del Noroeste. Ciencias Marinas. La Paz, BCS. México La Paz, BCS. México. COMITÉ REVISOR DE TESIS Dr. Salvador Emilio Lluch Cota Dra. Fiorenza Micheli Dr. Eduardo Francisco Balart Páez Dr. Héctor Reyes Bonilla Dr. Pablo Del Monte Luna JURADO DE EXAMEN Dr. Salvador Emilio Lluch Cota Dra. Fiorenza Micheli Dr. Eduardo Francisco Balart Páez Dr. Héctor Reyes Bonilla Dr. Pablo Del Monte Luna SUPLENTES Dr. Fausto Valenzuela Quiñonez Dr. Raúl Octavio Martínez Rincón RESUMEN El abulón es un importante recurso pesquero en México que en las últimas décadas ha presentado una importante disminución de sus poblaciones, a pesar de las estrictas regulaciones a las que está sometida su explotación. Si bien la tendencia general de las capturas de abulón indica una disminución de las dos principales especies que la conforman (Haliotis fulgens y H corrugata), a partir de su máximo histórico en 1950, esta tendencia no ha sido uniforme ni entre especies ni entre las regiones de donde se extrae. -
Smithsonian Miscellaneous Collections
SMITHSONIAN MISCELLANEOUS COLLECTIONS VOLUME 98. NUMBER 10 MOLLUSKS COLLECTED ON THE PRESIDENTIAL CRUISE OF 1938 (With Five Plates) BY PAUL BARTSGH Curator, Division of Mollusks, U. S. National Museum AND HARALD ALFRED REHDER Assistant Curator, Division of Mollusks, U. S. National Museum (Publication 3535) CITY OF WASHINGTON PUBLISHED BY THE SMITHSONIAN INSTITUTION JUNE 13, 1939 SMITHSONIAN MISCELLANEOUS COLLECTIONS VOLUME 98, NUMBER 10 MOLLUSKS COLLECTED ON THE PRESIDENTIAL CRUISE OF 1938 (With Five Plates) BY PAUL BARTSGH Curator, Division of Mollusks, U. S. National Museum AND HARALD ALFRED REHDER Assistant Curator, Division of Mollusks, U. S. National Museum (Publication 3535) CITY OF WASHINGTON PUBLISHED BY THE SMITHSONIAN INSTITUTION JUNE 13, 1939 BALTIMORE, MD., D. 8. A. MOLLUSKS COLLECTED ON THE PRESIDENTIAL CRUISE OF 1938 By PAUL BARTSCH Curator, Division of Mollusks, U. S. National Museum AND HARALD ALFRED REHDER Assistant Curator, Division of Mollusks, U. S. National Museum (With Five Plates) During President Franklin D. Roosevelt's cruise in the Pacific and Atlantic Oceans in 1938, on board the U.S.S. Houston, Dr. Waldo L. Schmitt, Curator of the Division of Marine Invertebrates of the LInited States National Museum, served as Naturalist. Among other things he made collections of mollusks in many rarely visited places, which resulted in the discovery of a new subgenus and a number of new species and subspecies, which are here described. We also give a list of all the species collected, believing this to be of especial interest, since little is known of the marine fauna of the places in which they were obtained. A particularly interesting fact presented by these collections is the Indo-Pacific relationship of the marine mollusks of Clipperton Island, which suggests a drift fauna. -
Miocene Vetigastropoda and Neritimorpha (Mollusca, Gastropoda) of Central Chile
Journal of South American Earth Sciences 17 (2004) 73–88 www.elsevier.com/locate/jsames Miocene Vetigastropoda and Neritimorpha (Mollusca, Gastropoda) of central Chile Sven N. Nielsena,*, Daniel Frassinettib, Klaus Bandela aGeologisch-Pala¨ontologisches Institut und Museum, Universita¨t Hamburg, Bundesstrasse 55, 20146 Hamburg, Germany bMuseo Nacional de Historia Natural, Casilla 787, Santiago, Chile Abstract Species of Vetigastropoda (Fissurellidae, Turbinidae, Trochidae) and one species of Neritimorpha (Neritidae) from the Navidad area, south of Valparaı´so, and the Arauco Peninsula, south of Concepcio´n, are described. Among these, the Fissurellidae comprise Diodora fragilis n. sp., Diodora pupuyana n. sp., two additional unnamed species of Diodora, and a species resembling Fissurellidea. Turbinidae are represented by Cantrainea sp., and Trochidae include Tegula (Chlorostoma) austropacifica n. sp., Tegula (Chlorostoma) chilena n. sp., Tegula (Chlorostoma) matanzensis n. sp., Tegula (Agathistoma) antiqua n. sp., Bathybembix mcleani n. sp., Gibbula poeppigii [Philippi, 1887] n. comb., Diloma miocenica n. sp., Fagnastesia venefica [Philippi, 1887] n. gen. n. comb., Fagnastesia matanzana n. gen. n. sp., Calliostoma mapucherum n. sp., Calliostoma kleppi n. sp., Calliostoma covacevichi n. sp., Astele laevis [Sowerby, 1846] n. comb., and Monilea riorapelensis n. sp. The Neritidae are represented by Nerita (Heminerita) chilensis [Philippi, 1887]. The new genus Fagnastesia is introduced to represent low-spired trochoideans with a sculpture of nodes below the suture, angulated whorls, and a wide umbilicus. This Miocene Chilean fauna includes genera that have lived at the coast and in shallow, relatively warm water or deeper, much cooler water. This composition therefore suggests that many of the Miocene formations along the central Chilean coast consist of displaced sediments. -
2015 Clathromorphum.Pdf
J. Phycol. 51, 189–203 (2015) © 2014 Phycological Society of America DOI: 10.1111/jpy.12266 DNA SEQUENCING, ANATOMY, AND CALCIFICATION PATTERNS SUPPORT A MONOPHYLETIC, SUBARCTIC, CARBONATE REEF-FORMING CLATHROMORPHUM (HAPALIDIACEAE, CORALLINALES, RHODOPHYTA) Walter H. Adey,2 Jazmin J. Hernandez-Kantun Botany Department, National Museum of Natural History, Smithsonian Institution, Washington, D.C., USA Gabriel Johnson Laboratory of Analytical Biology, National Museum of Natural History, Smithsonian Institution, Washington, D.C., USA and Paul W. Gabrielson Department of Biology and Herbarium, University of North Carolina, Chapel Hill, North Carolina, USA For the first time, morpho-anatomical characters under each currently recognized species of that were congruent with DNA sequence data were Clathromorphum and Neopolyporolithon. used to characterize several genera in Hapalidiaceae Key index words: anatomy; Callilithophytum; ecology; — the major eco-engineers of Subarctic carbonate evolution; Leptophytum; Melobesioideae; Neopolypor- ecosystems. DNA sequencing of three genes (SSU, olithon; psbA; rbcL; SSU rbcL, ribulose-1, 5-bisphosphate carboxylase/ oxygenase large subunit gene and psbA, photosystem Abbreviations: BI, Bayesian inference; BP, bootstrap II D1 protein gene), along with patterns of cell value; GTR, general time reversible; MCMC, Mar- division, cell elongation, and calcification supported kov Chain Monte Carlo; ML, maximum likelihood; a monophyletic Clathromorphum. Two characters psbA, Photosystem II D1 protein gene; rbcL, ribu- were diagnostic for this genus: (i) cell division, lose-15-bisphosphate carboxylase/oxygenase large elongation, and primary calcification occurred only subunit gene in intercalary meristematic cells and in a narrow vertical band (1–2 lm wide) resulting in a “meristem split” and (ii) a secondary calcification of interfilament crystals was also produced. -
Tidal Dynamics, Topographic Orientation, and Temperature-Mediated Mass Mortalities on Rocky Shores
Vol. 371: 37–46, 2008 MARINE ECOLOGY PROGRESS SERIES Published November 19 doi: 10.3354/meps07711 Mar Ecol Prog Ser Tidal dynamics, topographic orientation, and temperature-mediated mass mortalities on rocky shores Christopher D. G. Harley* Bodega Marine Laboratory, PO Box 247, Bodega Bay, California 94923, USA Present address: University of British Columbia, Department of Zoology, 6270 University Blvd., Vancouver, British Columbia V6T1Z4, Canada ABSTRACT: Temperature is among the main structuring agents on rocky intertidal shores. Although infrequent mortality events associated with high temperatures have been observed in several inter- tidal taxa, careful documentation of these events is rare, and small-scale variability in mortality patterns remains poorly understood. In Bodega Bay, California, USA, 2 mortality events occurred on exposed rocky shores during the spring of 2004 when low tides occurred around mid-day. Limpets Lottia scabra were killed during unseasonably warm weather in mid-March. In late April, record- high temperatures resulted in widespread mortality of the mussel Mytilus californianus. Levels of mortality for both species were closely associated with small-scale variability in temperature, which in turn was closely associated with substratum orientation. Invertebrates occupying surfaces facing the sun when stress was most intense were much more likely to die than those living on surfaces angled ≥45° away. Because the within-day timing of thermal stress varied seasonally, the highest mortalities were recorded on southwest-facing surfaces on the March afternoon low tide and on southeast-facing surfaces on the April morning low tide. Limpets and mussels showed little mortality during the events that were harmful to the other taxon, suggesting that these different taxa respond to different aspects of their thermal environment. -
Kelp Forest Monitoring Handbook — Volume 1: Sampling Protocol
KELP FOREST MONITORING HANDBOOK VOLUME 1: SAMPLING PROTOCOL CHANNEL ISLANDS NATIONAL PARK KELP FOREST MONITORING HANDBOOK VOLUME 1: SAMPLING PROTOCOL Channel Islands National Park Gary E. Davis David J. Kushner Jennifer M. Mondragon Jeff E. Mondragon Derek Lerma Daniel V. Richards National Park Service Channel Islands National Park 1901 Spinnaker Drive Ventura, California 93001 November 1997 TABLE OF CONTENTS INTRODUCTION .....................................................................................................1 MONITORING DESIGN CONSIDERATIONS ......................................................... Species Selection ...........................................................................................2 Site Selection .................................................................................................3 Sampling Technique Selection .......................................................................3 SAMPLING METHOD PROTOCOL......................................................................... General Information .......................................................................................8 1 m Quadrats ..................................................................................................9 5 m Quadrats ..................................................................................................11 Band Transects ...............................................................................................13 Random Point Contacts ..................................................................................15 -
Biology 136L – Invertebrate Zoology Lab Molluscan Diversity Lab Guide Author: Allison J
Page 1 of 9 Biology 136L – Invertebrate zoology lab Molluscan diversity lab guide Author: Allison J. Gong Figure source: Brusca and Brusca, 2003. Invertebrates, 2nd edition. Sinauer Associates, Inc. The Mollusca comprise a huge taxon, second only to the Arthropoda in terms of number of extant species. They are successful in marine, freshwater, and terrestrial habitats. There are probably close to 100,000 species of living molluscs, including such diverse forms as snails, clams, slugs, and squids. There are also some 35,000 fossil species. You have already dissected two common local marine molluscs – a snail (Chlorostoma funebralis) and a bivalve (Mytilus californianus) – and should be familiar with their internal and external anatomy. This understanding will help you make sense of the diversity of body forms you will observe in representatives of other molluscan taxa. With any luck I will have specimens from four of the seven extant molluscan classes for you: Polyplacophora, Bivalvia, Cephalopoda, and Gastropoda. In strictly pedagogical terms, we can use a non-existent creature called a Hypothetical Ancestral Mollusc (HAM) as a starting point on which natural selection has acted to produce the variety of molluscan body plans that we see today. This HAM was a benthic animal adapted for life on hard surfaces, crawling around on its muscular ventral foot and using its radula to scrape algal and detrital films. It was poorly cephalized with an anterior head and had a single, cap-shaped shell that could be clamped down to protect the visceral mass and other soft body parts. The mantle cavity enclosed several pairs of bipectinate ctenidia, or gills.