DOCSLIB.ORG

Copepoda (Crustacea) of Hydrothermal Ecosystems of Theworld Ocean

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
Copepoda (Crustacea) of Hydrothermal Ecosystems of Theworld Ocean Arthropoda Selecta 11 (2): 117134 © ARTHROPODA SELECTA, 2002 Copepoda (Crustacea) of hydrothermal ecosystems of theWorld Ocean Âåñëîíîãèå ðàêîîáðàçíûå (Crustacea: Copepoda) ãèäðîòåðìàëüíûõ ýêîñèñòåì Ìèðîâîãî Îêåàíà M.V. Heptner1, V.N. Ivanenko2 Ì.Â. Ãåïòíåð1, Â.Í. Èâàíåíêî2 1 () Zoological Museum, Moscow State University, Bolshaya Nikitskaya Str. 6, Moscow 125009 Russia. 1 () Çîîëîãè÷åñêèé ìóçåé ÌÃÓ, óë. Áîëüøàÿ Íèêèòñêàÿ 6, Ìîñêâà 125009 Ðîññèÿ. 2 Department of Invertebrate Zoology, Biology Faculty, Moscow State University, Moscow 119899 Russia; e-mail: [email protected] 2 Êàôåäðà çîîëîãèè áåñïîçâîíî÷íûõ, Áèîëîãè÷åñêèé ôàêóëüòåò ÌÃÓ, Ìîñêâà 119899 Ðîññèÿ. KEY WORDS: deep-sea hydrothermal vents and seeps, copepods, taxonomy, biology, functional morphology, distribution. ÊËÞ×ÅÂÛÅ ÑËÎÂÀ: ãëóáîêîâîäíûå ãèäðîòåðìû, õîëîäíûå âûñà÷èâàíèÿ, êîïåïîäû, òàêñîíîìèÿ, áèîëîãèÿ, ôóíêöèîíàëüíàÿ ìîðôîëîãèÿ, ðàñïðîñòðàíåíèå. ABSTRACT: Deep-sea hydrothermal ecosystems coida (8, 10, 11), Calanoida (2, 2, 2), Cyclopoida (1, 1, contain obligate taxa as well as species of oceanic 1) è Misophrioida (1, 1, 1). Îáëèãàòíî ãèäðîòåðìàëü- ecosystem. Thus ecological attribution of any species íûìè ÿâëÿþòñÿ ñåìåéñòâà Dirivultidae è Ecbathyrio- discovered in a hydrothermal biotope is a key task of ntidae (Siphonostomatoida) è íåêîòîðûå âèäû Poecilo- hydrothermal ecosystems investigation. 80 valid spe- stomatoida. Ôóíêöèîíàëüíî-ìîðôîëîãè÷åñêèé àíà- cies of 20 families from 6 orders of the 10 that form the ëèç ëîêîìîòîðíûõ è ðîòîâûõ êîíå÷íîñòåé ïîçâîëèë subclass Copepoda are discovered in deep-sea hydro- ñôîðìóëèðîâàòü ìîðôîëîãè÷åñêèå êðèòåðèè äëÿ thermal and seeping ecosystems. The most diverse order ïîíèìàíèÿ ñïåöèàëèçàöèè ãèäðîòåðìàëüíûõ êîïå- is Siphonostomatoida (4 families, 17 genera, 56 spe- ïîä. Dirivultidae íàèáîëåå ðàçíîîáðàçíû è ìíîãî÷èñ- cies), then Poecilostomatoida (4, 5, 9, respectively), ëåííû, ñïîñîáíû êàê ïëàâàòü, òàê è ïîëçàòü ïî ñóá- Harpacticoida (8, 10, 11), Calanoida (2, 2, 2), Cyclopoi- ñòðàòó, ïîãëîùàÿ áàêòåðèàëüíîå îáðàñòàíèå. ×àñòü da (1, 1, 1), and Misophrioida (1, 1, 1). Only Dirivultidae âèäîâ ñèìáèîíòû ãèäðîòåðìàëüíûõ áåñïîçâîíî÷- and Ecbathyriontidae (Siphonostomatoida) and some íûõ. Èõ áèîìàññà ïðåâîñõîäèò 2,85,8 ã/ì2 ïðè ÷èñ- species of Poecilostomatoida are interpreted as obligate ëåííîñòè áîëåå 64 000 ýêç/ì2.  öåëîì ôàóíà ãèäðî- for the deep-sea hydrothermal ecosystems. Functional òåðìàëüíûõ êîïåïîä èçó÷åíà íåäîñòàòî÷íî. analysis of locomotory and mouth limb morphology allows us to formulate morphological criteria for under- Introduction standing the specializations of hydrothermal copepods. Dirivultidae, the most abundant of these, are able to This paper is an improved English version of Copep- swim and crawl over the substrate, grazing on bacterial oda, a chapter of the monograph Biology of Hydro- films and mats. Some species are symbionts of hydro- thermal Systems edited by A. Gebruk [2002]. thermal invertebrates. Their biomass exceeds 2.85.8 g/ Copepods (subclass Copepoda Milne-Edwards, m2 with quantities of more than 64,000 ind/m2. As a 1840) are the most abundant animals living in diverse whole, the fauna of hydrothermal copepods is studied aquatic habitats, playing a significant role in marine life. insufficiently. In this paper we discuss the copepods of deep-sea hydrothermal fields and seeps, their taxonomic compo- ÐÅÇÞÌÅ: Ãëóáîêîâîäíûå ãèäðîòåðìàëüíûå ýêî- sition, distribution, morphological and biological traits, ñèñòåìû ñîäåðæàò êàê îáëèãàòíûå òàêñîíû, òàê è and the habitat specificity of obligate copepods [Hept- âèäû îêåàíè÷åñêîé ýêîñèñòåìû. Ò.î. äèàãíîñòèêà ner, Ivanenko, 2002]. ýêîëîãè÷åñêîé ïðèíàäëåæíîñòè ëþáûõ âèäîâ, îá- We believe that deep-sea hydrothermal ecosystems íàðóæåííûõ â ãèäðîòåðìàõ, ÿâëÿåòñÿ ïåðâîî÷åðåä- and deep-sea cold seeps related to them are immersed íîé çàäà÷åé ïðè èõ èññëåäîâàíèè.  ãëóáîêîâîäíûõ means in the ocean ecosystem and are ecosystems of ãèäðîòåðìàëüíûõ ýêîñèñòåìàõ îáíàðóæåíî 80 âè- the enclave type. Two biological consequences follow äîâ 20 ñåìåéñòâ 6 îòðÿäîâ èç 10, ñîñòàâëÿþùèõ from this: the influence of the hydrothermal systems on ïîäêëàññ Ñopepoda. Íàèáîëåå ðàçíîîáðàçíû Siphono- the oceanic ecosystem and vice versa. These influences stomatoida (4 ñåìåéñòâà, 17 ðîäîâ, 56 âèäîâ), çàòåì are important generally and for estimation of the role of Poecilostomatoida (ñîîòâåòñòâåííî 4, 5, 9), Harpacti- animals such as copepods that are not symbiotrophic, 118 M.V. Heptner, V.N. Ivanenko but consumers of the first order in hydrothermal eco- of ecological affiliation of the material collected from systems. hydrothermal biotopes. The first consequence is that some inhabitants of the hydrothermal zone and their developmental stages are Characteristics of the material and collec- carried away by currents. Vinogradov and Vinogradov [1998, 2002a,b] attempt to estimate the potential impact tion methods of the hydrothermal vent plume on the plankton above the Mid-Atlantic Ridge. They believe that the impact of At present, copepod species considered endemic to the hydrothermal plume on productivity of the ambient hydrothermal ecosystems are known from 20 areas in the oceanic water is negligible. However, planktonic hydro- Pacific and Atlantic oceans (Tables 1, 2). Hydrothermal thermal animals are distributed by the plume and are vents were discovered in over 40 localities and their recorded at a distance of up to 50100 km from a vent. number is still growing [Moskalev, 2002]. The source of Dispersal distances of vent fauna may be much greater the material is collections by expeditions of various than Vinogradov and Vinogradov [1968; 2002a,b] sug- countries. Most collections are from the Pacific Ocean, gest, as representatives of the obligate hydrothermal where initial investigations of the hydrothermal zone fauna are found in ephemeral habitats such as whale began. remains. At present, few such species are known, but their Interpretation of the available materials of copepods number is expected to increase [Tunnicliffe et al., 1998]. should include consideration of the fact that hydrother- There is a probability that a species described from mal ecosystems in the Pacific Ocean are entirely benthic non-vent habitat may eventually be recognized as an ones. The Atlantic hydrothermal zone is generally the obligate hydrothermal species. Until clear morphologi- same, but some bresiliid shrimps, principal components cal or other criteria are available, its ecological affilia- of ecosystems of the Mid-Atlantic Ridge, can be de- tion would remain questionable. Some indications of scribed as nektobenthic organisms. These shrimp may possible reproductive and physiological criteria may be be permanently in open water around a vent and/or at found in recent works [Vereshchaka et. al.,1998; Hour- some distance from it, and can withstand current drift up dez et al., 2000; Sell, 2000; Tsurumi et al., submitted]. to a rate of 17 cm/sec [Vinogradov, Vinogradov, 1998]. On the other hand, some widely distributed oceanic Among pelagic and benthic copepods, nektobenthic species may find favorable or more favorable conditions forms are unknown and unlikely, due to their small size in a hydrothermal ecosystem than in their original envi- (commonly 0.63.5 mm). Therefore, the whole list of ronment, and attain maximum abundance in the hydro- species known from hydrothermal vents is represented thermal zone. Such a phenomenon is described for some by either benthic or near-bottom forms, or by symbiotic oceanic species in the zone of an underwater mud species including parasites. volcano, Hokon Mosby, in the Norwegian Sea [Vino- We assume that all species of hydrothermal copep- gradov, Vinogradov, 1998]. If an undescribed animal is ods must be attached in some way to a substratum found with such a distribution, the problems are similar (either living or non-living); otherwise they would be as in the case of hydrothermal organisms found beyond swept away from their habitat. This general ecological the hydrothermal zone. For example, the family Erebon- requirement permits evaluation of available specimens asteridae (Copepoda: Poecilostomatoida) was discov- for their suitability to such a habitat and, in addition, of ered by Humes [1987] in mantle cavity of a protobranch the occurrence of appropriate substrata for coloniza- bivalve and termed endemic to the hydrothermal zone. tion by specialized hydrothermal copepods. Therefore, Subsequently, new species and genera of this family if new species that are typical planktonic forms are were found in other deep-sea biotopes [Huys, Boxshall, found in hydrothermal vents they can be inferred to 1990; Huys, 1991]. have drifted into the hydrothermal zone from an adja- One reason for both problems is paradoxical: the cent ecosystem. recently discovered hydrothermal zone has been more The vent copepod materials we consider here are thoroughly investigated than the adjacent non-vent oce- collected by three main methods. Copepods living in the anic benthic zone, although the non-vent benthic zone ground or on its surface are collected by a box corer. has been investigated for many decades. Moreover, the Species living among benthic animals are collected by a fauna of hydrothermal vents may be considered the best special sucking device a slurp gun. Commensal known of all deep-sea ecosystems; further exploration is species are washed off such principal substratum-form- constrained by insufficient knowledge of the adjacent ing species of the hydrothermal community as vestimen- benthic
Load more

Recommended publications
  • First Molecular Data and Morphological Re-Description of Two
    Journal of King Saud University – Science 33 (2021) 101290 Contents lists available at ScienceDirect Journal of King Saud University – Science journal homepage: www.sciencedirect.com Original article First molecular data and morphological re-description of two copepod species, Hatschekia sargi and Hatschekia leptoscari, as parasites on Parupeneus rubescens in the Arabian Gulf ⇑ Saleh Al-Quraishy a, , Mohamed A. Dkhil a,b, Nawal Al-Hoshani a, Wejdan Alhafidh a, Rewaida Abdel-Gaber a,c a Zoology Department, College of Science, King Saud University, Riyadh, Saudi Arabia b Department of Zoology and Entomology, Faculty of Science, Helwan University, Cairo, Egypt c Zoology Department, Faculty of Science, Cairo University, Cairo, Egypt article info abstract Article history: Little information is available about the biodiversity of parasitic copepods in the Arabian Gulf. The pre- Received 6 September 2020 sent study aimed to provide new information about different parasitic copepods gathered from Revised 30 November 2020 Parupeneus rubescens caught in the Arabian Gulf (Saudi Arabia). Copepods collected from the infected fish Accepted 9 December 2020 were studied using light microscopy and scanning electron microscopy and then examined using stan- dard staining and measuring techniques. Phylogenetic analyses were conducted based on the partial 28S rRNA gene sequences from other copepod species retrieved from GenBank. Two copepod species, Keywords: Hatschekia sargi Brian, 1902 and Hatschekia leptoscari Yamaguti, 1939, were identified as naturally 28S rRNA gene infected the gills of fish. Here we present a phylogenetic analysis of the recovered copepod species to con- Arabian Gulf Hatschekiidae firm their taxonomic position in the Hatschekiidae family within Siphonostomatoida and suggest the Marine fish monophyletic origin this family.
    [Show full text]
  • Three New Genera and Species of Siphonostomatoid Copepods (Crustacea) Associated with Sponges from Samar Island in the Philippines, with a Proposal of a New Family
    Anim. Syst. Evol. Divers. Vol. 34, No. 2: 79-91, April 2018 https://doi.org/10.5635/ASED.2018.34.2.008 Review article Three New Genera and Species of Siphonostomatoid Copepods (Crustacea) Associated with Sponges from Samar Island in the Philippines, with a Proposal of a New Family Jimin Lee1, Il-Hoi Kim2,* 1Marine Ecosystem and Biological Research Center, Korea Institute of Ocean Science & Technology, Busan 49111, Korea 2Korea Institute of Coastal Ecology, Bucheon 14449, Korea ABSTRACT Three new genera and species of siphonostomatoid copepods are described as associates of sponges from shallow water of Samar Island in the Philippines: Samarus filipes n. gen., n. sp., Paurocheres dentatus n. gen., n. sp., and Platymyzon umbonatum n. gen., n. sp. A new family Samarusidae is proposed to accommodate Samarus n. gen. which has rudimentary legs 1-5 represented only by filiform setae. Paurocheres n. gen. is characterized by 2-segmented endopod of leg 4 and reduced setation of legs, and Platymyzon n. gen. by missing of mandibular gnathobase. Keywords: ‌Samarusidae n. fam., three new genera, Samarus, Paurocheres, Platymyzon, sponge hosts INTRODUCTION MATERIALS AND METHODS Siphonostomatoid copepods associated with invertebrates Studied copepod material was obtained from washings of are small copepod, mostly less than 2 mm in length (Humes, mixed species of sponges. These sponge hosts were collected 1997a). Although sponges in the tropical Indo-Pacific har- by SCUBA divers of KIOST in the depth of 15-25 m on Feb- bor numerous siphonostomatoid copepods (Humes, 1996), ruary 24, 2017. For microscopic study selected copepod spe- perhaps Lee and Kim (2017) was the only record on the co- cimens were dissected in lactic acid and observed using the pepods associated with sponges from the Philippines.
    [Show full text]
  • 166, December 2016
    PSAMMONALIA The Newsletter of the International Association of Meiobenthologists Number 166, December 2016 Composed and Printed at: Lab. Of Biodiversity Dept. Of Life Science, College of Natural Sciences, Hanyang University, 222 Wangsimni–ro, Seongdong-gu, Seoul, 04763, Korea. Remembering the good times. Season’s Greetings, and Happy New Year! (2017) DONT FORGET TO RENEW YOUR MEMBERSHIP IN IAM! THE APPLICATION CAN BE FOUND AT: http://www.meiofauna.org/appform.html This newsletter is mailed electronically. Paper copies will be sent only upon request This Newsletter is not part of the scientific literature for taxonomic purposes 1 The International Association of Meiobenthologists Executive Committee Vadim Mokievsky P.P. Shirshov Institute of Oceanology, Russian Academy of Sciences, Chairperson 36 Nakhimovskiy Prospect, 117218 Moscow, Russia [[email protected]] Wonchoel Lee Lab. of Biodiversity, (#505), Department of Life Science, Past Chairperson College of Natural Sciences, Hanyang University. [[email protected]] Ann Vanreusel Ghent University, Biology Department, Marine Biology Section, Gent, Treasurer B-9000, Belgium [[email protected]] Jyotsna Sharma Department of Biology, University of Texas at San Antonio, San Antonio, Asistant Treasurer TX 78249-0661, USA [[email protected]] Hanan Mitwally Faculty of Science, Oceanography, University of Alexandria, (Term expires 2019) Moharram Bay, 21151, Egypt. [[email protected]] Gustavo Fonseca Universidade Federal de São Paulo, Instituto do Mar, Av. AlmZ Saldanha (Term expires 2019) da Gama 89, 11030-400 Santos, Brazil. [[email protected]] Daniel Leduc National Institute of Water and Atmospheric Research, (Term expires 2022) Private Bag 14-901, Wellington, New Zealand [[email protected]] Nabil Majdi Bielefeld University, Animal Ecology, Konsequenz 45, 33615, Bielefeld, (Term expires 2022) Germany [[email protected]] Ex-Officio Executive Committee (Past Chairpersons) 1966-67 Robert Higgins (Founding Editor) 1987-89 John Fleeger 1968-69 W.
    [Show full text]
  • Molecular Diversity, Phylogeny, and Biogeographic Patterns of Crustacean Copepods Associated with Scleractinian Corals of the Indo-Pacific
    Molecular Diversity, Phylogeny, and Biogeographic Patterns of Crustacean Copepods Associated with Scleractinian Corals of the Indo-Pacific Dissertation by Sofya Mudrova In Partial Fulfillment of the Requirements For the Degree of Doctor of Philosophy of Science King Abdullah University of Science and Technology, Thuwal, Kingdom of Saudi Arabia November, 2018 2 EXAMINATION COMMITTEE PAGE The dissertation of Sofya Mudrova is approved by the examination committee. Committee Chairperson: Dr. Michael Lee Berumen Committee Co-Chair: Dr. Viatcheslav Ivanenko Committee Members: Dr. James Davis Reimer, Dr. Takashi Gojobori, Dr. Manuel Aranda Lastra 3 COPYRIGHT PAGE © November, 2018 Sofya Mudrova All rights reserved 4 ABSTRACT Molecular diversity, phylogeny and biogeographic patterns of crustacean copepods associated with scleractinian corals of the Indo-Pacific Sofya Mudrova Biodiversity of coral reefs is higher than in any other marine ecosystem, and significant research has focused on studying coral taxonomy, physiology, ecology, and coral-associated fauna. Yet little is known about symbiotic copepods, abundant and numerous microscopic crustaceans inhabiting almost every living coral colony. In this thesis, I investigate the genetic diversity of different groups of copepods associated with reef-building corals in distinct parts of the Indo-Pacific; determine species boundaries; and reveal patterns of biogeography, endemism, and host-specificity in these symbiotic systems. A non-destructive method of DNA extraction allowed me to use an integrated approach to conduct a diversity assessment of different groups of copepods and to determine species boundaries using molecular and taxonomical methods. Overall, for this thesis, I processed and analyzed 1850 copepod specimens, representing 269 MOTUs collected from 125 colonies of 43 species of scleractinian corals from 11 locations in the Indo-Pacific.
    [Show full text]
  • Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans
    Molecular Species Delimitation and Biogeography of Canadian Marine Planktonic Crustaceans by Robert George Young A Thesis presented to The University of Guelph In partial fulfilment of requirements for the degree of Doctor of Philosophy in Integrative Biology Guelph, Ontario, Canada © Robert George Young, March, 2016 ABSTRACT MOLECULAR SPECIES DELIMITATION AND BIOGEOGRAPHY OF CANADIAN MARINE PLANKTONIC CRUSTACEANS Robert George Young Advisors: University of Guelph, 2016 Dr. Sarah Adamowicz Dr. Cathryn Abbott Zooplankton are a major component of the marine environment in both diversity and biomass and are a crucial source of nutrients for organisms at higher trophic levels. Unfortunately, marine zooplankton biodiversity is not well known because of difficult morphological identifications and lack of taxonomic experts for many groups. In addition, the large taxonomic diversity present in plankton and low sampling coverage pose challenges in obtaining a better understanding of true zooplankton diversity. Molecular identification tools, like DNA barcoding, have been successfully used to identify marine planktonic specimens to a species. However, the behaviour of methods for specimen identification and species delimitation remain untested for taxonomically diverse and widely-distributed marine zooplanktonic groups. Using Canadian marine planktonic crustacean collections, I generated a multi-gene data set including COI-5P and 18S-V4 molecular markers of morphologically-identified Copepoda and Thecostraca (Multicrustacea: Hexanauplia) species. I used this data set to assess generalities in the genetic divergence patterns and to determine if a barcode gap exists separating interspecific and intraspecific molecular divergences, which can reliably delimit specimens into species. I then used this information to evaluate the North Pacific, Arctic, and North Atlantic biogeography of marine Calanoida (Hexanauplia: Copepoda) plankton.
    [Show full text]
  • Orden POECILOSTOMATOIDA Manual
    Revista IDE@ - SEA, nº 97 (30-06-2015): 1-15. ISSN 2386-7183 1 Ibero Diversidad Entomológica @ccesible www.sea-entomologia.org/IDE@ Clase: Maxillopoda: Copepoda Orden POECILOSTOMATOIDA Manual CLASE MAXILLOPODA: SUBCLASE COPEPODA: Orden Poecilostomatoida Antonio Melic Sociedad Entomológica Aragonesa (SEA). Avda. Francisca Millán Serrano, 37; 50012 Zaragoza [email protected] 1. Breve definición del grupo y principales caracteres diagnósticos El orden Poecilostomatoida Thorell, 1859 tiene una posición sistemática discutida. Tradicionalmente ha sido considerado un orden independiente, dentro de los 10 que conforman la subclase Copepoda; no obstante, algunos autores consideran que no existen diferencias suficientes respeto al orden Cyclopoida, del que vendrían a ser un suborden (Stock, 1986 o Boxshall & Halsey, 2004, entre otros). No obstante, en el presente volumen se ha considerado un orden independiente y válido. Antes de entrar en las singularidades del orden es preciso tratar sucintamente la morfología, ecolo- gía y biología de Copepoda, lo que se realiza en los párrafos siguientes. 1.1. Introducción a Copepoda Los copépodos se encuentran entre los animales más abundantes en número de individuos del planeta. El plancton marino puede alcanzar proporciones de un 90 por ciento de copépodos respecto a la fauna total presente. Precisamente por su número y a pesar de su modesto tamaño (forman parte de la micro y meiofauna) los copépodos representan una papel fundamental en el funcionamiento de los ecosistemas marinos. En su mayor parte son especies herbívoras –u omnívoras– y por lo tanto transformadoras de fito- plancton en proteína animal que, a su vez, sirve de alimento a todo un ejército de especies animales, inclu- yendo gran número de larvas de peces.
    [Show full text]
  • Ivanenko V.N. 2006. Copepoda (Introduction). In: D. DESBRYERES, M
    Ivanenko V.N. 2006. Copepoda (Introduction). In: D. DESBRYERES, M. SEGONZAC & M. BRIGHT (Eds.) Handbook of Deep-Sea Hydrothermal Vent Fauna. Second edition. DENISIA, 18: 316-317 Ivanenko V.N. & Defaye D. 2006. Copepoda. In: D. DESBRYERES, M. SEGONZAC & M. BRIGHT (Eds.) Handbook of Deep-Sea Hydrothermal Vent Fauna. Second edition. DENISIA, 18: 318-355 Viatcheslav N. IVANENKO, Ph.D. Department of Invertebrate Zoology Biological Faculty, Moscow State University Leninskie Gory, 1-12 Moscow 119992, Russia http://www.nature.ok.ru/invertebrates/cv.html Handbook of Deep-Sea Hydrothermal Vent Fauna D. DESBRYÈRES, M. SEGONZAC & M. BRIGHT (Eds.) Denisia 18, 544 pages (27 x 21 cm) ISSN: 1608-8700; ISBN: 10 3-85474-154-5 or ISBN: 13 978-3-85474-154-1 Ordering via e-mail: [email protected] Price: 49 € (excl. shipping) The second extensively expanded edition of the "Handbook of Deep-Sea Hydrothermal Vent Fauna" gives on overview of our current knowledge on the animals living at hydrothermal vents. The discovery of hydrothermal vents and progresses made during almost 30 years are outlined. A brief introduction is given on hydrothermal vent meiofauna and parasites. Geographic maps and a table of mid-ocean ridges and back-arc basins with the major known hydrothermal vent fields, their location and depth range and the most prominent vent sites are provided. Higher taxa are presented individually with information on the current taxonomic and biogeographic status, the number of species described, recommendations for fixation, and schematic drawings, which aim to help non-specialists to identify the animals. 86 authors contributed with their expertise to create a comprehensive database on animals living at hydrothermal vents, which contains information on the morphology, biology, and geographic distribution of more than 500 currently described species belonging to one protist and 12 animal phyla.
    [Show full text]
  • Copepoda, Siphonostomatoida, Asterocheridae)
    A peer-reviewed open-access journal ZooKeys 607:A new93–102 species (2016) of Monocheres Stock (Copepoda, Siphonostomatoida, Asterocheridae)... 93 doi: 10.3897/zookeys.607.9137 RESEARCH ARTICLE http://zookeys.pensoft.net Launched to accelerate biodiversity research A new species of Monocheres Stock (Copepoda, Siphonostomatoida, Asterocheridae) from shallow waters off Florida, USA: an unexpected discovery Eduardo Suárez-Morales1 1 El Colegio de la Frontera Sur (ECOSUR), Unidad Chetumal. A.P. 424, Av. Centenario Km 5.5, Chetumal, Quintana Roo 77014, Mexico Corresponding author: Eduardo Suárez-Morales ([email protected]) Academic editor: D. Defaye | Received 10 May 2016 | Accepted 13 July 2016 | Published 27 July 2016 http://zoobank.org/1B09E08D-457F-46AF-8AB1-06AC8D226814 Citation: Suárez-Morales E (2016) A new species of Monocheres Stock (Copepoda, Siphonostomatoida, Asterocheridae) from shallow waters off Florida, USA: an unexpected discovery. ZooKeys 607: 93–102.doi: 10.3897/zookeys.607.9137 Abstract The rare asterocherid copepod genus Monocheres, ectosymbionts of corals and sponges, contains only two species, one from Mauritius (Indian Ocean) and the other one from Brazil (western Atlantic). From the analysis of the digestive caecum contents of the benthic hesionid polychaete Hesione picta Müller, 1858, an adult female of an undescribed species of Monocheres was unexpectedly recovered; it is the third species of this rare asterocherid genus. The new species, M. sergioi sp. n., has the distinctive reduction of the fifth leg as a process with a single seta. It differs from its two other congeners by several characters including the presence of an inner basipodal spine, the armature details of the third exopodal segment of leg 1, the shape of the cephalosome and pedigerous somites 3 and 4, and the ornamentation of the postero-lateral corners of the genital double-somite.
    [Show full text]
  • Trabajo De Grado Para Optar Al Título De Biólogo Marino
    ESTRUCTURA DEL ZOOPLANCTON Y SU RELACIÓN CON LAS CONDICIONES MARINAS EN EL CARIBE NORTE COLOMBIANO LEIDY JOHANNA HERNÁNDEZ RIVERA Tesis de maestría para optar al título de Magíster en Ciencias Marinas Director ADOLFO SANJUAN MUÑOZ Profesor Asociado Biólogo Marino Magíster en Gestión Ambiental en Zonas Costeras Máster en Biodiversidad Animal Codirector ANDRÉS FRANCO HERRERA Director Departamento de Ciencias Biológicas y Ambientales Biólogo Marino Doctor en Oceanografía PROGRAMA DE MAESTRÍA EN CIENCIAS MARINAS DEPARTAMENTO DE CIENCIAS BIOLÓGICAS Y AMBIENTALES FACULTAD DE CIENCIAS NATURALES E INGENIERÍA UNIVERSIDAD DE BOGOTÁ JORGE TADEO LOZANO SANTA MARTA 2019 ESTRUCTURA DEL ZOOPLANCTON Y SU RELACIÓN CON LAS CONDICIONES MARINAS EN EL CARIBE NORTE COLOMBIANO Hernández Rivera, L. Programa de Maestría en Ciencias Marinas. Departamento de ciencias biológicas y ambientales. facultad de Ciencias Naturales e Ingeniería. Universidad de Bogotá Jorge Tadeo Lozano. RESUMEN Con el objetivo de determinar la estructura en términos de abundancia, biomasa, composición y diversidad del ensamblaje zooplanctónico en la costa del Caribe norte colombiano y relacionarla con las condiciones del agua, se llevaron a cabo dos cruceros de investigación en las dos épocas climáticas típicas de la región (seca y lluviosa). Las estaciones fueron ubicadas en dos de las provincias fisicoquímicas determinadas en el Caribe colombiano; grupo 2: río Magdalena-CGSM (región 1) y grupo 6: PNN Tayrona-Guajira (región 2). Estos se realizaron sobre una grilla de 16 estaciones, donde se efectuaron arrastres circulares superficiales. Se encontraron 87 familias-morfotipos encontrándose la mayor riqueza de familias en la región 1 en la época seca, mientras que las mayores contribuciones en abundancias y biomasas se obtuvieron en época lluviosa en la región PNN Tayrona-Guajira.
    [Show full text]
  • (Gulf Watch Alaska) Final Report the Seward Line: Marine Ecosystem
    Exxon Valdez Oil Spill Long-Term Monitoring Program (Gulf Watch Alaska) Final Report The Seward Line: Marine Ecosystem monitoring in the Northern Gulf of Alaska Exxon Valdez Oil Spill Trustee Council Project 16120114-J Final Report Russell R Hopcroft Seth Danielson Institute of Marine Science University of Alaska Fairbanks 905 N. Koyukuk Dr. Fairbanks, AK 99775-7220 Suzanne Strom Shannon Point Marine Center Western Washington University 1900 Shannon Point Road, Anacortes, WA 98221 Kathy Kuletz U.S. Fish and Wildlife Service 1011 East Tudor Road Anchorage, AK 99503 July 2018 The Exxon Valdez Oil Spill Trustee Council administers all programs and activities free from discrimination based on race, color, national origin, age, sex, religion, marital status, pregnancy, parenthood, or disability. The Council administers all programs and activities in compliance with Title VI of the Civil Rights Act of 1964, Section 504 of the Rehabilitation Act of 1973, Title II of the Americans with Disabilities Action of 1990, the Age Discrimination Act of 1975, and Title IX of the Education Amendments of 1972. If you believe you have been discriminated against in any program, activity, or facility, or if you desire further information, please write to: EVOS Trustee Council, 4230 University Dr., Ste. 220, Anchorage, Alaska 99508-4650, or [email protected], or O.E.O., U.S. Department of the Interior, Washington, D.C. 20240. Exxon Valdez Oil Spill Long-Term Monitoring Program (Gulf Watch Alaska) Final Report The Seward Line: Marine Ecosystem monitoring in the Northern Gulf of Alaska Exxon Valdez Oil Spill Trustee Council Project 16120114-J Final Report Russell R Hopcroft Seth L.
    [Show full text]
  • Data Sources the Next 64 Pages Comprise a Reference List
    SUPPORTING INFORMATION APPENDIX 1: Data Sources The next 64 pages comprise a reference list for all literary sources given as references for trait scores and/or comments in the sFDvent raw (marked with an asterisk (*) if not then included in recommended) and/or recommended datasets (Tables S4.3 and S4.2, respectively). These references are not in alphabetical order, as the database is a ‘living’ record, so new references will be added and a new number assigned. In the recommended dataset (Table S4.2), the references are recorded according to the numbers listed below (and in Table S1.1), to ensure that citations are relatively easy for users to carry through when conducting analyses using subsets of the data, for example. If a score in the recommended dataset is supported by more than one reference, multiple reference identifiers are provided and separated by a semi-colon (;). The references are not provided as numbers / identifiers in the other versions of the dataset, as information is lost during this processing step (e.g., ‘expert opinion’, or 66, replaces comments made by experts in each reference column regarding additional observations, rationale for certainty scores, etc.), which may prove useful for some users. Other versions of the dataset thus maintain raw reference entries for transparency and as potentially useful metadata. We provide a copy of the recommended dataset without the references as numbers (Table S4.2A), in case it is easier for users to cross-reference between the two sheets to seek additional comments for a given data subset of interest. 1. Aguado, M.
    [Show full text]
  • Southeastern Regional Taxonomic Center South Carolina Department of Natural Resources
    Southeastern Regional Taxonomic Center South Carolina Department of Natural Resources http://www.dnr.sc.gov/marine/sertc/ Southeastern Regional Taxonomic Center Invertebrate Literature Library (updated 9 May 2012, 4056 entries) (1958-1959). Proceedings of the salt marsh conference held at the Marine Institute of the University of Georgia, Apollo Island, Georgia March 25-28, 1958. Salt Marsh Conference, The Marine Institute, University of Georgia, Sapelo Island, Georgia, Marine Institute of the University of Georgia. (1975). Phylum Arthropoda: Crustacea, Amphipoda: Caprellidea. Light's Manual: Intertidal Invertebrates of the Central California Coast. R. I. Smith and J. T. Carlton, University of California Press. (1975). Phylum Arthropoda: Crustacea, Amphipoda: Gammaridea. Light's Manual: Intertidal Invertebrates of the Central California Coast. R. I. Smith and J. T. Carlton, University of California Press. (1981). Stomatopods. FAO species identification sheets for fishery purposes. Eastern Central Atlantic; fishing areas 34,47 (in part).Canada Funds-in Trust. Ottawa, Department of Fisheries and Oceans Canada, by arrangement with the Food and Agriculture Organization of the United Nations, vols. 1-7. W. Fischer, G. Bianchi and W. B. Scott. (1984). Taxonomic guide to the polychaetes of the northern Gulf of Mexico. Volume II. Final report to the Minerals Management Service. J. M. Uebelacker and P. G. Johnson. Mobile, AL, Barry A. Vittor & Associates, Inc. (1984). Taxonomic guide to the polychaetes of the northern Gulf of Mexico. Volume III. Final report to the Minerals Management Service. J. M. Uebelacker and P. G. Johnson. Mobile, AL, Barry A. Vittor & Associates, Inc. (1984). Taxonomic guide to the polychaetes of the northern Gulf of Mexico.
    [Show full text]