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Atlas of the Neuromuscular System in the Trachymedusa Aglantha Digitale: Insights from the Advanced Hydrozoan
Received: 11 September 2019 Revised: 17 November 2019 Accepted: 18 November 2019 DOI: 10.1002/cne.24821 RESEARCH ARTICLE Atlas of the neuromuscular system in the Trachymedusa Aglantha digitale: Insights from the advanced hydrozoan Tigran P. Norekian1,2,3 | Leonid L. Moroz1,4 1Whitney Laboratory for Marine Biosciences, University of Florida, St. Augustine, Florida Abstract 2Friday Harbor Laboratories, University of Cnidaria is the sister taxon to bilaterian animals, and therefore, represents a key refer- Washington, Friday Harbor, Washington ence lineage to understand early origins and evolution of the neural systems. The 3Institute of Higher Nervous Activity and Neurophysiology, Russian Academy of hydromedusa Aglantha digitale is arguably the best electrophysiologically studied jelly- Sciences, Moscow, Russia fish because of its system of giant axons and unique fast swimming/escape behaviors. 4 Department of Neuroscience and McKnight Here, using a combination of scanning electron microscopy and immunohistochemistry Brain Institute, University of Florida, Gainesville, Florida together with phalloidin labeling, we systematically characterize both neural and mus- cular systems in Aglantha, summarizing and expanding further the previous knowledge Correspondence Leonid L. Moroz, The Whitney Laboratory, on the microscopic neuroanatomy of this crucial reference species. We found that the University of Florida, 9505 Ocean Shore Blvd., majority, if not all (~2,500) neurons, that are labeled by FMRFamide antibody are dif- St. Augustine, FL. Email: [email protected] ferent from those revealed by anti-α-tubulin immunostaining, making these two neuro- nal markers complementary to each other and, therefore, expanding the diversity of Funding information National Science Foundation, Grant/Award neural elements in Aglantha with two distinct neural subsystems. -
Diversity and Community Structure of Pelagic Cnidarians in the Celebes and Sulu Seas, Southeast Asian Tropical Marginal Seas
Deep-Sea Research I 100 (2015) 54–63 Contents lists available at ScienceDirect Deep-Sea Research I journal homepage: www.elsevier.com/locate/dsri Diversity and community structure of pelagic cnidarians in the Celebes and Sulu Seas, southeast Asian tropical marginal seas Mary M. Grossmann a,n, Jun Nishikawa b, Dhugal J. Lindsay c a Okinawa Institute of Science and Technology Graduate University (OIST), Tancha 1919-1, Onna-son, Okinawa 904-0495, Japan b Tokai University, 3-20-1, Orido, Shimizu, Shizuoka 424-8610, Japan c Japan Agency for Marine-Earth Science and Technology (JAMSTEC), Yokosuka 237-0061, Japan article info abstract Article history: The Sulu Sea is a semi-isolated, marginal basin surrounded by high sills that greatly reduce water inflow Received 13 September 2014 at mesopelagic depths. For this reason, the entire water column below 400 m is stable and homogeneous Received in revised form with respect to salinity (ca. 34.00) and temperature (ca. 10 1C). The neighbouring Celebes Sea is more 19 January 2015 open, and highly influenced by Pacific waters at comparable depths. The abundance, diversity, and Accepted 1 February 2015 community structure of pelagic cnidarians was investigated in both seas in February 2000. Cnidarian Available online 19 February 2015 abundance was similar in both sampling locations, but species diversity was lower in the Sulu Sea, Keywords: especially at mesopelagic depths. At the surface, the cnidarian community was similar in both Tropical marginal seas, but, at depth, community structure was dependent first on sampling location Marginal sea and then on depth within each Sea. Cnidarians showed different patterns of dominance at the two Sill sampling locations, with Sulu Sea communities often dominated by species that are rare elsewhere in Pelagic cnidarians fi Community structure the Indo-Paci c. -
A Chymotrypsin from the Digestive Tract of California Spiny Lobster, Panulirus Interruptus: Purification and Biochemical Characterization
A chymotrypsin from the Digestive Tract of California Spiny Lobster, Panulirus interruptus: Purification and Biochemical Characterization Betsaida Bibo-Verdugo, Liliana Rojo- Arreola, Maria A. Navarrete-del-Toro & Fernando García-Carreño Marine Biotechnology An International Journal Focusing on Marine Genomics, Molecular Biology and Biotechnology ISSN 1436-2228 Volume 17 Number 4 Mar Biotechnol (2015) 17:416-427 DOI 10.1007/s10126-015-9626-z 1 23 Your article is protected by copyright and all rights are held exclusively by Springer Science +Business Media New York. This e-offprint is for personal use only and shall not be self- archived in electronic repositories. If you wish to self-archive your article, please use the accepted manuscript version for posting on your own website. You may further deposit the accepted manuscript version in any repository, provided it is only made publicly available 12 months after official publication or later and provided acknowledgement is given to the original source of publication and a link is inserted to the published article on Springer's website. The link must be accompanied by the following text: "The final publication is available at link.springer.com”. 1 23 Author's personal copy Mar Biotechnol (2015) 17:416–427 DOI 10.1007/s10126-015-9626-z ORIGINAL ARTICLE A chymotrypsin from the Digestive Tract of California Spiny Lobster, Panulirus interruptus: Purification and Biochemical Characterization Betsaida Bibo-Verdugo1 & Liliana Rojo-Arreola1 & Maria A. Navarrete-del-Toro1 & Fernando García-Carreño1 Received: 13 August 2014 /Accepted: 31 January 2015 /Published online: 16 April 2015 # Springer Science+Business Media New York 2015 Abstract A chymotrypsin was purified from the gastric juice Introduction of California spiny lobster (Panulirus interrutpus), using pre- parative electrophoresis and affinity chromatography on aga- Proteolytic enzymes from the digestive system of crustacean rose-p-aminobenzamidine. -
HOMERIC-ILIAD.Pdf
Homeric Iliad Translated by Samuel Butler Revised by Soo-Young Kim, Kelly McCray, Gregory Nagy, and Timothy Power Contents Rhapsody 1 Rhapsody 2 Rhapsody 3 Rhapsody 4 Rhapsody 5 Rhapsody 6 Rhapsody 7 Rhapsody 8 Rhapsody 9 Rhapsody 10 Rhapsody 11 Rhapsody 12 Rhapsody 13 Rhapsody 14 Rhapsody 15 Rhapsody 16 Rhapsody 17 Rhapsody 18 Rhapsody 19 Rhapsody 20 Rhapsody 21 Rhapsody 22 Rhapsody 23 Rhapsody 24 Homeric Iliad Rhapsody 1 Translated by Samuel Butler Revised by Soo-Young Kim, Kelly McCray, Gregory Nagy, and Timothy Power [1] Anger [mēnis], goddess, sing it, of Achilles, son of Peleus— 2 disastrous [oulomenē] anger that made countless pains [algea] for the Achaeans, 3 and many steadfast lives [psūkhai] it drove down to Hādēs, 4 heroes’ lives, but their bodies it made prizes for dogs [5] and for all birds, and the Will of Zeus was reaching its fulfillment [telos]— 6 sing starting from the point where the two—I now see it—first had a falling out, engaging in strife [eris], 7 I mean, [Agamemnon] the son of Atreus, lord of men, and radiant Achilles. 8 So, which one of the gods was it who impelled the two to fight with each other in strife [eris]? 9 It was [Apollo] the son of Leto and of Zeus. For he [= Apollo], infuriated at the king [= Agamemnon], [10] caused an evil disease to arise throughout the mass of warriors, and the people were getting destroyed, because the son of Atreus had dishonored Khrysēs his priest. Now Khrysēs had come to the ships of the Achaeans to free his daughter, and had brought with him a great ransom [apoina]: moreover he bore in his hand the scepter of Apollo wreathed with a suppliant’s wreath [15] and he besought the Achaeans, but most of all the two sons of Atreus, who were their chiefs. -
The Evolution of Siphonophore Tentilla for Specialized Prey Capture in the Open Ocean
The evolution of siphonophore tentilla for specialized prey capture in the open ocean Alejandro Damian-Serranoa,1, Steven H. D. Haddockb,c, and Casey W. Dunna aDepartment of Ecology and Evolutionary Biology, Yale University, New Haven, CT 06520; bResearch Division, Monterey Bay Aquarium Research Institute, Moss Landing, CA 95039; and cEcology and Evolutionary Biology, University of California, Santa Cruz, CA 95064 Edited by Jeremy B. C. Jackson, American Museum of Natural History, New York, NY, and approved December 11, 2020 (received for review April 7, 2020) Predator specialization has often been considered an evolutionary makes them an ideal system to study the relationships between “dead end” due to the constraints associated with the evolution of functional traits and prey specialization. Like a head of coral, a si- morphological and functional optimizations throughout the organ- phonophore is a colony bearing many feeding polyps (Fig. 1). Each ism. However, in some predators, these changes are localized in sep- feeding polyp has a single tentacle, which branches into a series of arate structures dedicated to prey capture. One of the most extreme tentilla. Like other cnidarians, siphonophores capture prey with cases of this modularity can be observed in siphonophores, a clade of nematocysts, harpoon-like stinging capsules borne within special- pelagic colonial cnidarians that use tentilla (tentacle side branches ized cells known as cnidocytes. Unlike the prey-capture apparatus of armed with nematocysts) exclusively for prey capture. Here we study most other cnidarians, siphonophore tentacles carry their cnidocytes how siphonophore specialists and generalists evolve, and what mor- in extremely complex and organized batteries (3), which are located phological changes are associated with these transitions. -
A Systematic and Experimental Analysis of Their Genes, Genomes, Mrnas and Proteins; and Perspective to Next Generation Sequencing
Crustaceana 92 (10) 1169-1205 CRUSTACEAN VITELLOGENIN: A SYSTEMATIC AND EXPERIMENTAL ANALYSIS OF THEIR GENES, GENOMES, MRNAS AND PROTEINS; AND PERSPECTIVE TO NEXT GENERATION SEQUENCING BY STEPHANIE JIMENEZ-GUTIERREZ1), CRISTIAN E. CADENA-CABALLERO2), CARLOS BARRIOS-HERNANDEZ3), RAUL PEREZ-GONZALEZ1), FRANCISCO MARTINEZ-PEREZ2,3) and LAURA R. JIMENEZ-GUTIERREZ1,5) 1) Sea Science Faculty, Sinaloa Autonomous University, Mazatlan, Sinaloa, 82000, Mexico 2) Coelomate Genomic Laboratory, Microbiology and Genetics Group, Industrial University of Santander, Bucaramanga, 680007, Colombia 3) Advanced Computing and a Large Scale Group, Industrial University of Santander, Bucaramanga, 680007, Colombia 4) Catedra-CONACYT, National Council for Science and Technology, CDMX, 03940, Mexico ABSTRACT Crustacean vitellogenesis is a process that involves Vitellin, produced via endoproteolysis of its precursor, which is designated as Vitellogenin (Vtg). The Vtg gene, mRNA and protein regulation involve several environmental factors and physiological processes, including gonadal maturation and moult stages, among others. Once the Vtg gene, mRNAs and protein are obtained, it is possible to establish the relationship between the elements that participate in their regulation, which could either be species-specific, or tissue-specific. This work is a systematic analysis that compares the similarities and differences of Vtg genes, mRNA and Vtg between the crustacean species reported in databases with respect to that obtained from the transcriptome of Callinectes arcuatus, C. toxotes, Penaeus stylirostris and P. vannamei obtained with MiSeq sequencing technology from Illumina. Those analyses confirm that the Vtg obtained from selected species will serve to understand the process of vitellogenesis in crustaceans that is important for fisheries and aquaculture. RESUMEN La vitelogénesis de los crustáceos es un proceso que involucra la vitelina, producida a través de la endoproteólisis de su precursor llamado Vitelogenina (Vtg). -
Provided by the Internet Classics Archive. See Bottom for Copyright
Provided by The Internet Classics Archive. See bottom for copyright. Available online at http://classics.mit.edu//Homer/iliad.html The Iliad By Homer Translated by Samuel Butler ---------------------------------------------------------------------- BOOK I Sing, O goddess, the anger of Achilles son of Peleus, that brought countless ills upon the Achaeans. Many a brave soul did it send hurrying down to Hades, and many a hero did it yield a prey to dogs and vultures, for so were the counsels of Jove fulfilled from the day on which the son of Atreus, king of men, and great Achilles, first fell out with one another. And which of the gods was it that set them on to quarrel? It was the son of Jove and Leto; for he was angry with the king and sent a pestilence upon the host to plague the people, because the son of Atreus had dishonoured Chryses his priest. Now Chryses had come to the ships of the Achaeans to free his daughter, and had brought with him a great ransom: moreover he bore in his hand the sceptre of Apollo wreathed with a suppliant's wreath and he besought the Achaeans, but most of all the two sons of Atreus, who were their chiefs. "Sons of Atreus," he cried, "and all other Achaeans, may the gods who dwell in Olympus grant you to sack the city of Priam, and to reach your homes in safety; but free my daughter, and accept a ransom for her, in reverence to Apollo, son of Jove." On this the rest of the Achaeans with one voice were for respecting the priest and taking the ransom that he offered; but not so Agamemnon, who spoke fiercely to him and sent him roughly away. -
Part I. an Annotated Checklist of Extant Brachyuran Crabs of the World
THE RAFFLES BULLETIN OF ZOOLOGY 2008 17: 1–286 Date of Publication: 31 Jan.2008 © National University of Singapore SYSTEMA BRACHYURORUM: PART I. AN ANNOTATED CHECKLIST OF EXTANT BRACHYURAN CRABS OF THE WORLD Peter K. L. Ng Raffles Museum of Biodiversity Research, Department of Biological Sciences, National University of Singapore, Kent Ridge, Singapore 119260, Republic of Singapore Email: [email protected] Danièle Guinot Muséum national d'Histoire naturelle, Département Milieux et peuplements aquatiques, 61 rue Buffon, 75005 Paris, France Email: [email protected] Peter J. F. Davie Queensland Museum, PO Box 3300, South Brisbane, Queensland, Australia Email: [email protected] ABSTRACT. – An annotated checklist of the extant brachyuran crabs of the world is presented for the first time. Over 10,500 names are treated including 6,793 valid species and subspecies (with 1,907 primary synonyms), 1,271 genera and subgenera (with 393 primary synonyms), 93 families and 38 superfamilies. Nomenclatural and taxonomic problems are reviewed in detail, and many resolved. Detailed notes and references are provided where necessary. The constitution of a large number of families and superfamilies is discussed in detail, with the positions of some taxa rearranged in an attempt to form a stable base for future taxonomic studies. This is the first time the nomenclature of any large group of decapod crustaceans has been examined in such detail. KEY WORDS. – Annotated checklist, crabs of the world, Brachyura, systematics, nomenclature. CONTENTS Preamble .................................................................................. 3 Family Cymonomidae .......................................... 32 Caveats and acknowledgements ............................................... 5 Family Phyllotymolinidae .................................... 32 Introduction .............................................................................. 6 Superfamily DROMIOIDEA ..................................... 33 The higher classification of the Brachyura ........................ -
Larval Development of Shallow Water Barnacles of the Carolinas (Cirripedia
421 NOAA Technical Report Circular 421 OF <•*>" *o, Larval Development of / Shallow Water Barnacles of the Carolinas (Cirripedia: Sr V/ *TES O* Thoracica) With Keys to Naupliar Stages William H. Lang February 1979 U.S. DEPARTMENT OF COMMERCE National Oceanic and Atmospheric Administration National Marine Fisheries Service NOAA TECHNICAL REPORTS National Marine Fisheries Service, Circulars The major responsibilities of the National Marine Fisheries Service (NMFS) are to monitor and assess the abundance and geographic distribution of fishery resources, to understand and predict fluctuations in the quantity and distribution of these resources, and to establish levels for optimum use of the resources. NMFS is also charged with the development and implementation of policies for managing national fishing grounds, development and enforcement of domestic fisheries regulations, surveillance of foreign fishing off United States coastal waters, and the development and enforcement of international fishery agreements and policies. NMFS also assists the fishing industry through marketing service and economic analysis programs, and mortgage insurance and vessel construction subsidies. It collects, analyzes, and publishes statistics on various phases of the industry. The NOAA Technical Report NMFS Circular series continues a series that has been in existence since 1941. The Circulars are technical publications of general interest intended to aid conservation and management. Publications that review in considerable detail and at a high technical level certain broad areas of research appear in this series. Technical papers originating in economics studies and from management in- vestigations appear in the Circular series. NOAA Technical Report NMFS Circulars are available free in limited numbers to governmental agencies, both Federal and State. -
South Carolina Department of Natural Resources
FOREWORD Abundant fish and wildlife, unbroken coastal vistas, miles of scenic rivers, swamps and mountains open to exploration, and well-tended forests and fields…these resources enhance the quality of life that makes South Carolina a place people want to call home. We know our state’s natural resources are a primary reason that individuals and businesses choose to locate here. They are drawn to the high quality natural resources that South Carolinians love and appreciate. The quality of our state’s natural resources is no accident. It is the result of hard work and sound stewardship on the part of many citizens and agencies. The 20th century brought many changes to South Carolina; some of these changes had devastating results to the land. However, people rose to the challenge of restoring our resources. Over the past several decades, deer, wood duck and wild turkey populations have been restored, striped bass populations have recovered, the bald eagle has returned and more than half a million acres of wildlife habitat has been conserved. We in South Carolina are particularly proud of our accomplishments as we prepare to celebrate, in 2006, the 100th anniversary of game and fish law enforcement and management by the state of South Carolina. Since its inception, the South Carolina Department of Natural Resources (SCDNR) has undergone several reorganizations and name changes; however, more has changed in this state than the department’s name. According to the US Census Bureau, the South Carolina’s population has almost doubled since 1950 and the majority of our citizens now live in urban areas. -
Pelagic Deep-Sea Fauna Observed on Video Transects in The
Polar Biology (2021) 44:887–898 https://doi.org/10.1007/s00300-021-02840-5 ORIGINAL PAPER Pelagic deep‑sea fauna observed on video transects in the southern Norwegian Sea Philipp Neitzel1 · Aino Hosia2 · Uwe Piatkowski1 · Henk‑Jan Hoving1 Received: 15 June 2020 / Revised: 24 February 2021 / Accepted: 2 March 2021 / Published online: 22 March 2021 © The Author(s) 2021 Abstract Observations of the diversity, distribution and abundance of pelagic fauna are absent for many ocean regions in the Atlan- tic, but baseline data are required to detect changes in communities as a result of climate change. Gelatinous fauna are increasingly recognized as vital players in oceanic food webs, but sampling these delicate organisms in nets is challenging. Underwater (in situ) observations have provided unprecedented insights into mesopelagic communities in particular for abundance and distribution of gelatinous fauna. In September 2018, we performed horizontal video transects (50–1200 m) using the pelagic in situ observation system during a research cruise in the southern Norwegian Sea. Annotation of the video recordings resulted in 12 abundant and 7 rare taxa. Chaetognaths, the trachymedusa Aglantha digitale and appendicularians were the three most abundant taxa. The high numbers of fshes and crustaceans in the upper 100 m was likely the result of vertical migration. Gelatinous zooplankton included ctenophores (lobate ctenophores, Beroe spp., Euplokamis sp., and an undescribed cydippid) as well as calycophoran and physonect siphonophores. We discuss the distributions of these fauna, some of which represent the frst record for the Norwegian Sea. Keywords Norwegian Sea · Zooplankton · Micronekton · Macroplankton · In situ observations · Vertical migration · Aglantha Introduction 2006). -
Clas109.04 Rebirth Demeter & Hades
CLAS109.04 REBIRTH M Maurizio ch.4.1 HISTORY—Homeric Hymn to Demeter before class: skim HISTORY context; refer to leading questions; focus on ancient texts Active Reading FOCUS • H.Hom.2 & Plut.Mor. cf. CR04 H.Hom.Cer. G. Nagy trans. (Maurizio p.163‐174 is fine) use CR04 Plutarch Moralia: Isis & Osiris 15‐16 (Plut.Mor.357A‐D) NB read for one hour, taking notes (fill in worksheets) RAW notes & post discussion question @11h00 W Maurizio ch.4.3 COMPARE—In the Desert by the Early Grass before class: skim COMPARE context; refer to leading questions; focus on ancient text Active Reading FOCUS • Early Grass (edin‐na u2 saĝ‐ĝa2‐ke4) use CR04 Jacobsen 1987 translation (Maurizio p.188‐194 is NOT fine) NB read for one hour, taking notes; finish previous as necessary RAW notes & post discussion question @12h00 F Maurizio ch.4.2 THEORY—Foley 1994 before class: skim also modern 4.4 RECEPTION paragraph synopsis of Foley, H. 1994. “Question of Origins.” Womens Studies 23.3:193‐215 NB read for one hour, practice summarizing; finish previous as necessary tl; dr & post discussion responses @11h00 Q04 • QUOTE QUIZ Gen.6‐11, Aesch.Prom., H.Hom.Cer., Plut.Mor.357A‐D; Early Grass FINAL notes @23h59 DRAFT 01 @23h59 • following guidelines DEMETER & HADES How does myth represent the natural world (e.g. pre‐scientific explanation)? How does myth represent religious ritual? How does myth represent social order? Homeric Hymn to Demeter1 G. Nagy 1 I begin to sing of Demeter, the holy goddess with the beautiful hair.