DOCSLIB.ORG

A Biodiversity Survey of Scavenging Amphipods in a Proposed Marine Protected Area: the Filchner Area in the Weddell Sea, Antarctica

Total Page：16

File Type：pdf, Size：1020Kb

Download full-text PDF Read full-text
A Biodiversity Survey of Scavenging Amphipods in a Proposed Marine Protected Area: the Filchner Area in the Weddell Sea, Antarctica A biodiversity survey of scavenging amphipods in a proposed marine protected area: the Filchner area in the Weddell Sea, Antarctica Charlotte Havermans, Meike Anna Seefeldt & Christoph Held Polar Biology ISSN 0722-4060 Polar Biol DOI 10.1007/s00300-018-2292-7 1 23 Your article is protected by copyright and all rights are held exclusively by Springer- Verlag GmbH Germany, part of Springer Nature. 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 Polar Biology https://doi.org/10.1007/s00300-018-2292-7 ORIGINAL PAPER A biodiversity survey of scavenging amphipods in a proposed marine protected area: the Filchner area in the Weddell Sea, Antarctica Charlotte Havermans1,2 · Meike Anna Seefeldt2,3 · Christoph Held2 Received: 17 October 2017 / Revised: 23 February 2018 / Accepted: 24 February 2018 © Springer-Verlag GmbH Germany, part of Springer Nature 2018 Abstract An integrative inventory of the amphipod scavenging fauna (Lysianassoidea), combining morphological identifcations with DNA barcoding, is provided here for the Filchner area situated in the south-eastern Weddell Sea. Over 4400 lysianassoids were investigated for species richness and relative abundances, covering 20 diferent stations and using diferent sampling devices, including the southernmost baited traps deployed so far (76°S). High species richness was observed: 29 morphos- pecies of which 5 were new to science. Molecular species delimitation methods were carried out with 109 cytochrome c oxidase I gene (COI) sequences obtained during this study as well as sequences from specimens sampled in other Antarctic regions. These distance-based analyses (trees and the Automatic Barcode Gap Discovery method) indicated the presence of 42 lineages; for 4 species, several (cryptic) lineages were found. More than 96% of the lysianassoids collected with baited traps belonged to the species Orchomenella pinguides s. l. The diversity of the amphipod scavenger guild in this ice-bound ecosystem of the Weddell Sea is discussed in the light of bottom–up selective forces. In this southernmost part of the Weddell Sea, harbouring spawning and nursery grounds for silverfsh and icefshes, abundant fsh and mammalian food falls are likely to represent the major food for scavengers. Finally, the importance of biodiversity surveys in the context of the establishment of a marine protected area in this region (Weddell Sea MPA) is highlighted and how future studies can contribute to a better understanding the ecological role of scavengers in this system is discussed. Keywords Amphipoda · Lysianassoidea · Barcoding · COI gene · Taxonomy · Carrion-feeder · Food falls Introduction Electronic supplementary material The online version of this The exploitation of natural resources as well as rapid article (https​://doi.org/10.1007/s0030​0-018-2292-7) contains environmental changes, with their cascading conse- supplementary material, which is available to authorized users. quences such as community and regime shifts, are known to have major impacts on the stability of ecosystems and Charlotte Havermans and Meike Anna Seefeldt have contributed equally to this work. thus ecosystem function (Scheffer and Carpenter 2003; Worm et al. 2006; Harley 2011; Bellard et al. 2012). The * Charlotte Havermans resilience of an ecosystem is dependent on its response [email protected] to the loss and disturbances of critical key species and * Meike Anna Seefeldt communities. The prevention of this accelerating loss of [email protected] biodiversity in both coastal (e.g., Jackson et al. 2001) and 1 Marine Zoology, BreMarE Bremen Marine Ecology, open-ocean ecosystems (e.g., Worm et al. 2005), as well Universität Bremen, PO Box 330 440, 28334 Bremen, as ecosystem functioning and services (e.g., see Worm Germany et al. 2006) is one of major aims of global conservation 2 Alfred-Wegener-Institut Helmholtz-Zentrum für Polar- und organisations like the International Union for Conser- Meeresforschung, Am Handelshafen 12, 27568 Bremerhaven, vation for Nature (IUCN). One of the goals within the Germany Aichi biodiversity targets of the convention on biologi- 3 Department of Animal Ecology, Evolution and Biodiversity, cal diversity (CBD), which was later reaffirmed as Goal Ruhr-Universität Bochum, Universitätsstraße 150, 14 within the United Nations sustainable development 44801 Bochum, Germany Vol.:(0123456789)1 3 Author's personal copy Polar Biology goals (UNSDG), is to protect 10% of the worlds coastal the north-eastern Weddell Sea continental shelf (Grifths and marine areas (CBD 2010; UNSDG 2015). The estab- et al. 2010), and until recently, only a handful of stations has lishment of marine protected areas (MPAs) is considered been quantitatively sampled in the Filchner Trench (Knust a suitable tool that designates certain marine areas of and Schröder 2014). specific economic, biodiversity, and species conserva- Situated in the south-eastern Weddell Sea, the Filchner tion interest (CBD 2004). MPAs benefit from measures area is considered to be a key oceanographic region, char- preventing the exploitation of marine resources, e.g., by acterized by a complex system of formation and mixing of implementing a sustainable fishery or fishing prohibition water masses with various in- and outfows (Darelius et al. in no-take areas as well as tourism management. While 2014). The Filchner Trough, intersecting the continental nearly every coastal country has implemented an MPA- shelf break at 33°W, is bounded by the Filchner-Ronne like structure (Agardy et al. 2003), the Southern Ocean Ice Shelf, the world’s largest ice shelf by volume (Fox and has been long time neglected in this regard despite its Cooper 1994; Grosfeld et al. 2001). In this region, strong pristine character and large area. The Southern Ocean sea-ice formation creates brine rejection and dense saline (sensu lato, i.e., including sub-Antarctic areas sensu shelf water production (Haid and Timmermann 2013), whilst De Broyer et al. 2014, hereafter SO) harbours complex melting and freezing events at the base of the ice shelf are ecosystems and communities which can vary over small responsible for the production of ice shelf water, a precur- geographical scales (Gutt et al. 2013). Its marine fauna is sor of the Antarctic Bottom Water (Foldvik et al. 2004). rich in species, particularly in the benthos, with many rep- Hence, this area is of major importance for the global ocean resentatives in groups such as crustaceans, polychaetes, circulation and ventilation of the world’s abyss (Foldvik sponges, gastropods, and bryozoans (e.g., Arntz et al. et al. 2004). Changes in sea-ice conditions, warming surface 1994; Clarke 2008). Its unique features, e.g., geographic waters (Grosfeld and Gerdes 1998), and calving icebergs and climatic isolation, low and stable temperatures, and (Grosfeld et al. 2001) may have severe consequences for the an extreme seasonality, are thought to have contributed Filchner-Ronne ice shelf and the production of bottom water, to the evolution of a high endemicity, adaptive radiations, which are, however, difcult to predict due to the complex- and species flocks observed in several taxa (reviewed in ity of the regionally heterogeneous hydrographic conditions Chenuil et al. 2018). (Darelius et al. 2014) and the interplay between winds, eddy The Antarctic treaty signatory powers, through the con- processes, hydrographic forcing from precipitation, sea ice, vention for the conservation of Antarctic marine living and ice shelf melting (Hellmer et al. 2017). Nevertheless, resources (CCAMLR), have been working on the assign- certain simulations with IPCC-simulated scenarios, based ment of a network of MPAs across the SO. To do so, they on coupled ice-ocean models, project an increase in basal have agreed on a system, dividing the SO into nine marine melting and ice shelf thinning with a tipping point where large-scale planning domains covering convention areas in these changes will be irreversible with strong implications which both scientifc research as well as MPAs are planned on the Antarctic ice sheet (Hellmer et al. 2017). and considered (CCAMLR 2005, 2011, 2012). The South In addition, from a faunal point of view, the Filchner area Orkney Islands Southern Shelf MPA was the frst no-take has been referred to as a hotspot, both in terms of diversity area in the SO designated by CCAMLR (2009). The world’s and abundance of certain taxa, mainly fsh and marine mam- largest MPA, situated in the Ross Sea, was recently resolved mals (Knust and Schröder 2014). In the area, the outfow in October 2016 and will be taken into force in December of ice shelf water mixes with the oceanic deep waters of 2017 with 72% of its assigned area planned as a no-take the Weddell Gyre circulation, resulting in physical fronts. area (CCAMLR 2016). Since 2011, an MPA for the East This is believed to be the primary cause of this area being Antarctic domain is under negotiation, being proposed by a biological hotspot, where upper and intermediate trophic Australia and the European Union (CCAMLR 2011). The levels are maximized (Bornemann et al. 2014). This complex European Union recently submitted a further proposal, con- regional hydrography infuences the downward fux of sea- ceptualised by Germany, requesting the Weddell Sea as a ice algae, phytoplankton, and derived organic matter (Auel MPA covering eco-regions with characteristic biodiversity et al. 2014). Both meso- and macro-zooplankton appear to and biogeographic patterns (Teschke et al.
Load more

Recommended publications
  • Crustacea: Amphipoda: Cyphocarididae) from Japan
    Bull. Natl. Mus. Nat. Sci., Ser. A, Suppl. 3, pp. 37–46, March 22, 2009 A New Species of the Genus Cyphocaris (Crustacea: Amphipoda: Cyphocarididae) from Japan Ko Tomikawa Department of Science Education, Graduate School of Education, Hiroshima University, Higashi-Hiroshima 739–8524, Japan E-mail: [email protected] Abstract Cyphocaris ohtsukai, a new amphipod species belonging to the family Cyphocarididae from Japan, is described and illustrated. The new species is similar to C. anonyx, C. cornuta, and C. geyserensis in having a serrate ventral margin of the spur on the posterior margin of the basis of the pereopod 5. However, the new species is distinguished from them by the combination of the following characters: the eyes are incomplete; the ventral margin of the spur on the posterior mar- gin of the basis of the pereopod 5 is multi-dentate; the spur of the basis of the pereopod 5 is long; and the telson almost reaches the posterior end of the uropod 3. A key to species of the family Cyphocarididae is provided. Key words : Amphipoda, Cyphocarididae, Cyphocaris ohtsukai, new species, Japan, key to species. The amphipod family Cyphocarididae com- Materials and Methods prises two genera, Cyphocaris Boeck, 1871 and Amphipods were captured using a sledge net Procyphocaris Barnard, 1961. Members of the (mouth opening 145 cmϫ15 cm, mesh opening major genus, Cyphocaris, are pelagic or demersal 328 mm) at one station in the Nansei Islands, micropredators with cosmopolitan distributions southwestern Japan. The gear was towed along (Lowry and Stoddart, 2003). To date, 12 species the bottom at a speed of 2 knots for 20 minutes of the genus are known from the world oceans by the T/S Toyoshio-Maru.
    [Show full text]
  • Amphipoda of the NEP
    Amphipoda of the Northeast Pacific (Equator to Aleutians, intertidal to abyss): XVI. Stegocephaloidea - an expanded review Donald B. Cadien, LACSD 19 Oct 2006 (revised 23 Feb 2015) Preface The purpose of this review is to bring together information on all of the species reported to occur in the NEP fauna. It is not a straight path to the identification of your unknown animal. It is a resource guide to assist you in making the required identification in full knowledge of what the possibilities are. Never forget that there are other, as yet unreported species from the coverage area; some described, some new to science. The natural world is wonderfully diverse, and we have just scratched its surface. Andaniotes pseudolinearlis (photo Jørgen Berge) Introduction to the Stegocephaloidea The superfamily Stegocephaloidea consists of only the Family Stegocephalidae, and is distributed almost entirely in cold and/or deep waters. In the past, families now allocated to the Iphimedioidea were also included here (Bousfield 1977), but their removal in the last few years has left the Stegocephalidae the sole constituent member of the superfamily (Bousfield and Shih 1994). The superfamily then has the characters of the family. The superfamily is considered to be of moderate age, originating no earlier than the middle to upper Cretaceous (Bousfield 1982b). It currently consists of over 100 species distributed among 26 genera (Berge and Vader 2001b), and has enlarged significantly over the past century (12-14 species and nine genera in Stebbing 1906). In recent years there has been an intensive effort on the part of Jørgen Berge and Wim Vader to bring order to the nomenclatural chaos which has reigned for years in the Stegocephalidae.
    [Show full text]
  • The Crustacean Scavenger Guild in Antarctic Shelf, Bathyal and Abyssal Communities
    ARTICLE IN PRESS Deep-Sea Research II 51 (2004) 1733–1752 www.elsevier.com/locate/dsr2 The crustacean scavenger guild in Antarctic shelf, bathyal and abyssal communities Claude De Broyera,Ã, Fabienne Nyssena,b, Patrick Daubya,b aInstitut Royal des Sciences Naturelles de Belgique, rue Vautier 29, B-1000 Brussels, Belgium bMARE Centre – Oceanology, University of Lie`ge, Sart Tilman B6, B-4000 Lie`ge, Belgium Received 28 December 2003; received in revised form 7 June 2004; accepted 28 June 2004 Available online 21 October 2004 Abstract Peracarid crustaceans form a significant part of the macrobenthic community that is responsible for scavenging on large food falls onto the sea floor. Although several studies are available about scavengers from tropical and temperate seas, very little information has been published about such species living in Antarctic waters, particularly at greater depths. The present paper is based on a collection of 31 baited trap sets deployed in the Weddell Sea, Scotia Sea, and off the South Shetland Islands, and presents results on the geographical and bathymetric distribution of the different taxa and on the eco-functional role of scavengers. Some 68,000 peracarid crustaceans from 62 species were collected. About 98% of individuals belonged to the amphipod superfamily Lysianassoidea, and 2% to the isopod family Cirolanidae. Of these species, 31, including 26 lysianassoids (1400 individuals), were collected deeper than 1000 m. High species richness was discerned for the eastern Weddell Sea shelf compared with other Antarctic areas. The Antarctic slope also seems to be richer in species than other areas investigated in the world, while in the abyss, scavenger species richness appears to be lower in Antarctica.
    [Show full text]
  • Additions to and Revisions of the Amphipod (Crustacea: Amphipoda) Fauna of South Africa, with a List of Currently Known Species from the Region
    Additions to and revisions of the amphipod (Crustacea: Amphipoda) fauna of South Africa, with a list of currently known species from the region Rebecca Milne Department of Biological Sciences & Marine Research Institute, University of CapeTown, Rondebosch, 7700 South Africa & Charles L. Griffiths* Department of Biological Sciences & Marine Research Institute, University of CapeTown, Rondebosch, 7700 South Africa E-mail: [email protected] (with 13 figures) Received 25 June 2013. Accepted 23 August 2013 Three species of marine Amphipoda, Peramphithoe africana, Varohios serratus and Ceradocus isimangaliso, are described as new to science and an additional 13 species are recorded from South Africa for the first time. Twelve of these new records originate from collecting expeditions to Sodwana Bay in northern KwaZulu-Natal, while one is an introduced species newly recorded from Simon’s Town Harbour. In addition, we collate all additions and revisions to the regional amphipod fauna that have taken place since the last major monographs of each group and produce a comprehensive, updated faunal list for the region. A total of 483 amphipod species are currently recognized from continental South Africa and its Exclusive Economic Zone . Of these, 35 are restricted to freshwater habitats, seven are terrestrial forms, and the remainder either marine or estuarine. The fauna includes 117 members of the suborder Corophiidea, 260 of the suborder Gammaridea, 105 of the suborder Hyperiidea and a single described representative of the suborder Ingolfiellidea.
    [Show full text]
  • Biodiversity of the Gammaridea and Corophiidea (Crustacea
    Biodiversity of the Gammaridea and Corophiidea (Crustacea: Amphipoda) from the Beagle Channel and the Straits of Magellan: a preliminary comparison between their faunas Ignacio L. Chiesa1,2 & Gloria M. Alonso2 1 Laboratorio de Artrópodos, Departamento de Biodiversidad y Biología Experimental, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, C1428EHA, Buenos Aires, Argentina; ichiesa@ bg.fcen.uba.ar 2 Museo Argentino de Ciencias Naturales “Bernardino Rivadavia”, Div. Invertebrados, Av. Ángel Gallardo 470, C1405DJR, Buenos Aires, Argentina; [email protected] Received 10-XI-2005. Corrected 25-IV-2006. Accepted 16-III-2007. Abstract: Gammaridea and Corophiidea amphipod species from the Beagle Channel and the Straits of Magellan were listed for the first time; their faunas were compared on the basis of bibliographic information and material collected in one locality at Beagle Channel (Isla Becasses). The species Schraderia serraticauda and Heterophoxus trichosus (collected at Isla Becasses) were cited for the first time for the Magellan region; Schraderia is the first generic record for this region. A total of 127 species were reported for the Beagle Channel and the Straits of Magellan. Sixty-two species were shared between both passages (71.3 % similarity). The amphipod species represented 34 families and 83 genera. The similarity at genus level was 86.4 %, whereas 23 of the 34 families were present in both areas. For all species, 86 had bathymetric ranges above 100 m and only 12 species ranged below 200 m depth. In the Beagle Channel, only one species had a depth record greater than 150 m, whereas in the Straits of Magellan, 15 had such a record.
    [Show full text]
  • The 17Th International Colloquium on Amphipoda
    Biodiversity Journal, 2017, 8 (2): 391–394 MONOGRAPH The 17th International Colloquium on Amphipoda Sabrina Lo Brutto1,2,*, Eugenia Schimmenti1 & Davide Iaciofano1 1Dept. STEBICEF, Section of Animal Biology, via Archirafi 18, Palermo, University of Palermo, Italy 2Museum of Zoology “Doderlein”, SIMUA, via Archirafi 16, University of Palermo, Italy *Corresponding author, email: [email protected] th th ABSTRACT The 17 International Colloquium on Amphipoda (17 ICA) has been organized by the University of Palermo (Sicily, Italy), and took place in Trapani, 4-7 September 2017. All the contributions have been published in the present monograph and include a wide range of topics. KEY WORDS International Colloquium on Amphipoda; ICA; Amphipoda. Received 30.04.2017; accepted 31.05.2017; printed 30.06.2017 Proceedings of the 17th International Colloquium on Amphipoda (17th ICA), September 4th-7th 2017, Trapani (Italy) The first International Colloquium on Amphi- Poland, Turkey, Norway, Brazil and Canada within poda was held in Verona in 1969, as a simple meet- the Scientific Committee: ing of specialists interested in the Systematics of Sabrina Lo Brutto (Coordinator) - University of Gammarus and Niphargus. Palermo, Italy Now, after 48 years, the Colloquium reached the Elvira De Matthaeis - University La Sapienza, 17th edition, held at the “Polo Territoriale della Italy Provincia di Trapani”, a site of the University of Felicita Scapini - University of Firenze, Italy Palermo, in Italy; and for the second time in Sicily Alberto Ugolini - University of Firenze, Italy (Lo Brutto et al., 2013). Maria Beatrice Scipione - Stazione Zoologica The Organizing and Scientific Committees were Anton Dohrn, Italy composed by people from different countries.
    [Show full text]
  • Greater Amphipod Diversity Associated with Environmental Heterogeneity in Deep-Sea Habitats……………………………………………………………
    http://researchcommons.waikato.ac.nz/ Research Commons at the University of Waikato Copyright Statement: The digital copy of this thesis is protected by the Copyright Act 1994 (New Zealand). The thesis may be consulted by you, provided you comply with the provisions of the Act and the following conditions of use: Any use you make of these documents or images must be for research or private study purposes only, and you may not make them available to any other person. Authors control the copyright of their thesis. You will recognise the author’s right to be identified as the author of the thesis, and due acknowledgement will be made to the author where appropriate. You will obtain the author’s permission before publishing any material from the thesis. Diversity of New Zealand Deep-sea Amphipoda A thesis submitted in fulfilment of the requirements for the degree of Doctor of Philosophy at The University of Waikato by MATTHEW ANDREW KNOX 2012 i ABSTRACT Biodiversity and the ecological and evolutionary processes which influence faunal distributions are poorly understood in deep-sea habitats. This thesis assesses diversity of deep-sea amphipod crustaceans at three taxonomic levels (family, species, genetic) on continental margins of New Zealand relative to environmental variables. Sampling was undertaken at 20 stations located on Chatham Rise and Challenger Plateau, two major geomorphic features with contrasting environmental conditions. In Chapter 1, total diversity of the >12,500 amphipods assessed at the family-level revealed high abundance (range: 44 – 2074 individuals 1000 m-2) and taxonomic richness (27 families). Amphipod assemblages at all stations were largely dominated by the same families.
    [Show full text]
  • (Crustacea : Amphipoda) of the Lower Chesapeake Estuaries
    W&M ScholarWorks Reports 1971 The distribution and ecology of the Gammaridea (Crustacea : Amphipoda) of the lower Chesapeake estuaries James Feely Virginia Institute of Marine Science Marvin L. Wass Virginia Institute of Marine Science Follow this and additional works at: https://scholarworks.wm.edu/reports Part of the Marine Biology Commons, Oceanography Commons, Terrestrial and Aquatic Ecology Commons, and the Zoology Commons Recommended Citation Feely, J., & Wass, M. L. (1971) The distribution and ecology of the Gammaridea (Crustacea : Amphipoda) of the lower Chesapeake estuaries. Special papers in marine science No.2. Virginia Institute of Marine Science, College of William and Mary. http://doi.org/10.21220/V5H01D This Report is brought to you for free and open access by W&M ScholarWorks. It has been accepted for inclusion in Reports by an authorized administrator of W&M ScholarWorks. For more information, please contact [email protected]. THE DISTRIBUTION AND ECOLOGY OF THE GAMMARIDEA (CRUSTACEA: AMPHIPODA) OF THE LOWER CHESAPEAKE ESTUARIES James B. Feeley and Marvin L. Wass SPECIAL PAPERS IN MARINE SCIENCE NO. 2 VIRGIN IA INSTITUTE OF MARINE SC IE NCE Gloucester Point, Virginia 23062 1971 THE DISTRIBUTION AND ECOLOGY OF THE GAMMARIDEA (CRUSTACEA: AMPHIPODA) OF THE LOWER 1 CHESAPEAKE ESTUARIES James B. Feeley and Marvin L. Wass SPECIAL PAPERS IN MARINE SCIENCE NO. 2 1971 VIRGINIA INSTITUTE OF MARINE SCIENCE Gloucester Point, Virginia 23062 This document is in part a thesis by James B. Feeley presented to the School of Marine Science of the College of William and Mary in Virginia in partial fulfillment of the requirements for the degree of Master of Arts.
    [Show full text]
  • AMPHIPODA: GAMMARIDEA: LYSIANASSOIDEA) in the CARIBBEAN SEA Correo Carlos Varela1 & Heather D
    16 NOVITATES CARIBAEA 11: 16-20, 2017 FIRST FINDING OF THE FAMILY TRISCHIZOSTOMATIDAE LILLJEBORG, 1865 (AMPHIPODA: GAMMARIDEA: LYSIANASSOIDEA) IN THE CARIBBEAN SEA Correo Carlos Varela1 & Heather D. Bracken-Grissom Department of Biological Sciences, Biscayne Bay Campus, Florida International University. USA. [email protected] 1 ABSTRACT The first record of an amphipod belonging to the family Trischizostomatidae from the Caribbean Sea is presented. Keywords: Crustacea, Amphipoda, Gammaridea, Trischizostomatidae, Trischizostoma, ectoparasites. PRIMER HALLAZGO DE LA FAMILIA TRISCHIZOSTOMATIDAE LILLEBORG, 1865 (AMPHIPODA: GAMMARIDEA: LYSIANASSOIDEA) EN EL MAR CARIBE RESUMEN Se presenta el primer registro para el Mar Caribe de una especie de la familia Trischizostomatidae. Palabras clave: Crustacea, Amphipoda, Gammaridea, Trischizostomatidae, Trischizostoma, ectoparasitos. INTRODUCTION The family Trischizostomatidae contains only the genus Trischizostoma Boeck, 1861, which has 18 species of pelagic or bathypelagic amphipods inhabiting depths ranging from 22 to 3 655 meters. This group of amphipods is characterized by its stiliform mouthparts and the first gnathopod with the propodus inverted in the adult state for attachment as ectoparasites of fish and sharks| (Freire and Serejo, 2004; Winfield et al., 2016). The distribution of these species includes the Pacific Ocean, with 8 species, Indian Ocean with 5 species and Atlantic Ocean with 8 species, of which only Trischizostoma richeri Lowry and Stoddart, 1994 and T. denticulatum Ledoyer,
    [Show full text]
  • The Occurrence of the Parasitic Amphipod Trischizostoma Crosnieri
    Latin American Journal of Aquatic Research, 49(2): 365-368, 2021 Trischizostoma at a methane seep of southeastern Pacific 365 DOI: 10.3856/vol49-issue2-fulltext-2536 Short Communication The occurrence of the parasitic amphipod Trischizostoma crosnieri Lowry & Stoddart, 1993 (Amphipoda: Amphilochidea: Lysianassida) in a methane seep site in the southeastern Pacific Jorge Pérez-Schultheiss1 & Javier Sellanes2 1Área Zoología de Invertebrados, Museo Nacional de Historia Natural, Santiago, Chile 2Departamento de Biología Marina & Núcleo Milenio “Ecología y manejo sustentable de islas oceánicas” Facultad de Ciencias del Mar, Universidad Católica del Norte, Coquimbo, Chile Corresponding author: Jorge Pérez-Schultheiss ([email protected]) ABSTRACT. The genus Trischizostoma Boeck, 1861 is a cosmopolitan group of parasitic and symbiotic aristoidean amphipods whose distribution is poorly known, with scarce specimens reported principally from pelagic environments until 3655 m depth. In this note, Trischizostoma crosnieri Lowry & Stoddart, 1993, a species described for the southwest Pacific, is recorded for the first time in the southeast Pacific. The species was known previously only from a female specimen, described from the Philippines, with two additional unpublished records from the east coast of Australia and Tasmania. The specimens studied herein were obtained at 874 m depth, 36 nm to the northwest of Concepción, Biobío Region, in a methane seep site. However, the relationship between this species with this particular habitat is still uncertain. The genus Trischizostoma has been cited for the Nazca and Salas y Gómez ridges; nevertheless, our finding constitutes the first record of a species at the continental margin off Chile, raising to four the known species of the genus for Chilean waters.
    [Show full text]
  • Amphipod Newsletter 23
    −1− NEW AMPHIPOD TAXA IN AMPHIPOD NEWSLETTER 23 Wim Vader, XII-2001 All references are to papers found in the bibliography in AN 23 A. Alphabetic list of new taxa 1. New subfamilies Andaniexinae Berge & Vader 2001 Stegocephalidae AndaniopsinaeBerge & Vader 2001 Stegocephalidae Bathystegocephalinae Berge & Vader 2001 Stegocephalidae Parandaniinae Berge & Vader 2001 Stegocephalidae 2. New genera Alania Berge & Vader 2001 Stegocephalidae Apolochus Hoover & Bousfield 2001 Amphilochidae Austrocephaloides Berge & Vader 2001 Stegocephalidae Austrophippsia Berge & Vader 2001 Stegocephalidae Bouscephalus Berge & Vader 2001 Stegocephalidae Exhyalella (rev.)(Lazo-Wasem & Gable 2001) Hyalellidae Gordania Berge & Vader 2001 Stegocephalidae Hourstonius Hoover & Bousfield 2001 Amphilochidae Marinohyalella Lazo-Wasem & Gable 2001 Hyalellidae Mediterexis Berge & Vader 2001 Stegocephalidae Metandania (rev.) (Berge 2001) Stegocephalidae Miramarassa Ortiz, Lalana & Lio 1999 Aristiidae Othomaera Krapp-Schickel, 2001 Melitidae Parafoxiphalus Alonso de Pina 2001 Phoxocephalidae Pseudo Berge & Vader 2001 Stegocephalidae Schellenbergia Berge & Vader 2001 Stegocephalidae Stegomorphia Berge & Vader 2001 Stegocephalidae Stegonomadia Berge & Vader 2001 Stegocephalidae Zygomaera Krapp-Schickel 2001 Melitidae 3. New species and subspecies abei (Anonyx) Takakawa & Ishimaru 2001 Uristidae abyssorum (rev.) (Andaniotes) (Berge 2001 ) Stegocephalidae −2− africana (Andaniopsis) Berge, Vader & Galan 2001 Stegocephalidae amchitkana (Anisogammarus) Bousfield 2001 Anisogammaridae
    [Show full text]
  • First Record of the Genus Lepidepecreum (Amphipoda: Lysianassidae: Tryphoinae) from Korean Waters
    ISSN 1226-9999 (print) ISSN 2287-7851 (online) Korean J. Environ. Biol. 33(2) : 119~125 (2015) http://dx.doi.org/10.11626/KJEB.2015.33.2.119 First Record of the Genus Lepidepecreum (Amphipoda: Lysianassidae: Tryphoinae) from Korean Waters Tae Won Jung, Hyun Ki Choi1 and Seong Myeong Yoon2,* National Science Museum, Daejeon 305-705, Korea 1Department of Biotechnology, Chosun University, Gwangju 501-759, Korea 2Department of Biology, Chosun University, Gwangju 501-759, Korea Abstract - Despite the worldwide distributions of genus Lepidepecreum and the previous reports from China and Japan, this genus has not yet been recorded in Korean waters. In this study, Korean materials of lysianassid amphipods are assigned readily to the genus Lepidepecreum and identified as L. vitjazi Gurjanova, 1962 based on the following features: well-developed dorsal keels of the pleonite 3 and urosimite 1; unconcaved palmer margin of ganthopod 1; hooked locking spines of propodus on pereopods 3 and 4; and the shape of coxa 4. We also provide the description and illustrations of this species. Key words: Lepidepecreum‌ vitjazi, lysianassid, amphipod, taxonomy, Korea 2015), and none have been reported from Korean waters until INTRODUCTION now. In this study, the genus Lepidepecreum is first reported Lysianassidae Dana, 1849 is a very large group in gam- in Korean waters by the discovery of L. vitjazi Gurjanova, marideans, consisted of 86 genera, and might be divided into 1962, and we provide the description and illustrations. three subfamilies by various taxonomic concerns; Conic- ostomatinae Lowry and Stoddart, 2012, Lysianassinae Dana, 1849 and Tryphosinae Lowry and Stoddart, 1997 (Barnard MATERIALS AND METHODS and Karaman 1991; Lowry and Stoddart 1997; Wikispecies 2015; WoRMS 2015).
    [Show full text]