AMPHIPOD Newsletter 35 (2011)
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Benthic Amphipod (Crustacea) Fauna of the Bandırma and Erdek Gulfs and Some Environmental Factors Affecting Their Distribution
ISSN: 0001-5113 ACTA ADRIAT., ORIGINAL SCIENTIFIC PAPER AADRAY 56(2): 171 - 188, 2015 Benthic amphipod (Crustacea) fauna of the Bandırma and Erdek Gulfs and some environmental factors affecting their distribution Ayşegül MÜLAYİM*1, Hüsamettin BALKIS1 and Murat SEZGİN2 1 Istanbul University, Faculty of Science, Department of Biology, 34134 Istanbul,Turkey 2Sinop University, Fisheries Faculty, Department of Hydrobiology 57000 Sinop, Turkey *Corresponding author, e-mail: [email protected] This study aims to determine the environmental factors affecting the fauna and distribution of benthic amphipod species inhabiting in the Bandırma and Erdek Gulfs which are located on the south of the Marmara Sea. Total of 66 species belonging to 22 families were identified after analyzing the samples collected seasonally from the depths ranging between 1 and 30 m between 2007- 2008. According to the data gathered from the literature, it was determined that one species (Bathyporeia elegans Watkin, 1938) was a new record for the Turkish seas and 37 species for the Marmara Sea. In the Bandırma Gulf, of the ecological variables of the environment temperature was determined to range between 6.6-27°C, salinity between 21.32-36.03 psu, dissolved oxygen between 4.04-11.26 mg l-1and pH between 8.00-8.38. In the Erdek Gulf, temperature ranged between 6.7 and 27°C, salinity between 21.93-35.54‰, dissolved oxygen between 3.67-13.26 mg l-1and pH between 8.06-8.36. In the surface sediment at the sampling stations of the Bandırma Gulf, total organic carbon values were between 0.07-4.42%, total calcium carbonate between 0.88-84.82%, total phosphorus between 609-12740 μg g-1 and mud percentage between 1.38-79.93%. -
Zootaxa: Crangonyx Islandicus Sp. Nov., a Subterranean Freshwater
Zootaxa 1365: 1–17 (2006) ISSN 1175-5326 (print edition) www.mapress.com/zootaxa/ ZOOTAXA 1365 Copyright © 2006 Magnolia Press ISSN 1175-5334 (online edition) Crangonyx islandicus sp. nov., a subterranean freshwater amphipod (Crustacea, Amphipoda, Crangonyctidae) from springs in lava fields in Iceland JÖ R U N D U R S VAVA R S SO N 1 & BJARNI K. KRISTJÁNSSON2 1Institute of Biology, University of Iceland, Askja-Natural Science Building, Sturlugata 7, 101 Reykjavík, Ice- land. E-mail: [email protected] 2Holar University College, 551 Skagafjörður, Iceland. E-mail: [email protected] Abstract Crangonyx islandicus sp. nov. (Crustacea, Amphipoda, Crangonyctidae) is described from Iceland. This is the second species of freshwater, subterranean, gammaridean amphipods found in Iceland and the first species of the family Crangonyctidae. Crangonyx islandicus sp. nov. can be distinguished from other species of the genus Crangonyx by combination of the following characters: the number of spines on the outer and inner lobes of the maxillipedal palp, the presence of a spine at the base of the unguis of the dactylus of gnathopods 1 and 2, stout and short uropod 3, and by a short and wide telson. The species was recorded in South, Southwest, West and Northeast Iceland from numerous springs emerging from relatively young (<10 000 years), porous lavas. The species has apparently survived Pliocene and Pleistocene glaciations in groundwater of porous lava fields and may have persisted in Iceland for several million years. Key words: Amphipoda, Crangonyx, Crangonyctidae, Crangonyctoidea, Iceland, glaciations, subterranean, groundwater, subarctic Introduction Subterranean waters hold a variety of organisms of most animal phyla (see Botosaneanu 1986). -
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. -
Differential Impacts of Shared Parasites on Fitness Components Among Competing Hosts
Received: 23 November 2016 | Revised: 13 April 2017 | Accepted: 19 April 2017 DOI: 10.1002/ece3.3062 ORIGINAL RESEARCH Differential impacts of shared parasites on fitness components among competing hosts Olwyn C. Friesen | Robert Poulin | Clément Lagrue Department of Zoology, University of Otago, Dunedin, New Zealand Abstract Effects of parasites on individual hosts can eventually translate to impacts on host Correspondence Olwyn C. Friesen, Department of Zoology, communities. In particular, parasitism can differentially affect host fitness among sym- University of Otago, Dunedin, New Zealand. patric and interacting host species. We examined whether the impact of shared para- Email: [email protected] sites varied among host species within the same community. Specifically, we looked at Funding information the impacts of the acanthocephalan Acanthocephalus galaxii, the trematodes Department of Zoology, University of Otago Coitocaecum parvum and Maritrema poulini, and the nematode Hedruris spinigera, on three host species: the amphipods, Paracalliope fluviatilis and Paracorophium excava- tum, and the isopod, Austridotea annectens. We assessed parasite infection levels in the three host species and tested for effects on host survival, behavior, probability of pairing, and fecundity. Maritrema poulini and C. parvum were most abundant in P. exca- vatum but had no effect on its survival, whereas they negatively affected the survival of P. fluviatilis, the other amphipod. Female amphipods carrying young had higher M. poulini and C. parvum abundance than those without, yet the number of young car- ried was not linked to parasite abundance. Behavior of the isopod A. annectens was affected by M. poulini infection; more heavily infected individuals were more active. Paracorophium excavatum moved longer distances when abundance of C. -
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. -
Ecotoxicology of Estuarine Amphipod Paracorophium Excavatum
E icolo fEstua ·ne Amphipod Paracorophium excavatum A thesis Submitted in partial fulfilment the requirements for Degree of Master of Science in Environmental Science at The University of Canterbury by Carol Wong Hee Ting University of Canterbury 1999 ABSTRACT The estuarine tube dwelling amphipod Paracorophium excavatum was investigated for its suitability as a bio-indicator and bio-monitor. Distribution patterns of P. excavatum were determined at 13 sites in the Canterbury region that differed in particle size distribution ranging from sandy to muddy sediment, with overall10w organic content. Low tide salinity ranged from 5 to 33 0/00 between sites and sediment moisture content ranged between 23 to 41 % moisture. Amphipods were absent from most sites within the Avon-Heathcote Estuary. The availability, life history and fecundity of P. excavatum were compared from intertidal mudflat sites in Brooklands Lagoon and Kairaki over a period of thirteen months. Four sediment core samples were collected at monthly intervals and P. excavatum IS population structure and life history pattern studied. The life history til· <: of P. excavatum can be characterised bY fast-growing, annual, iteroporous, bivoltine, females ovigerous throughout the year and thelygenous (female biased) population. P. excavatum showed relative consistency in abundance throughout the year with monthly densities ranging from 875.79 per 0.1 m-2 (July) to 1754.77 per 0.1 m-2 (December) at Brooklands Lagoon and 1031.83 per 0.1 m2 (November) to 1780.24 per 0.1 m2 (December) at Kairaki. There was a linear relationship between numbers of eggs per female and female length. -
Are Parasite Richness and Abundance Linked to Prey Species Richness and Individual Feeding Preferences in fish Hosts?
75 Are parasite richness and abundance linked to prey species richness and individual feeding preferences in fish hosts? ALYSSA R. CIRTWILL1, DANIEL B. STOUFFER1, ROBERT POULIN2 and CLÉMENT LAGRUE2* 1 Centre for Integrative Ecology, School of Biological Sciences, University of Canterbury, Private Bag 4800, Christchurch 8140, New Zealand 2 Department of Zoology, University of Otago, 340 Great King Street, PO Box 56, Dunedin 9054, New Zealand (Received 1 July 2015; revised 8 October 2015; accepted 9 October 2015; first published online 17 November 2015) SUMMARY Variations in levels of parasitism among individuals in a population of hosts underpin the importance of parasites as an evolutionary or ecological force. Factors influencing parasite richness (number of parasite species) and load (abundance and biomass) at the individual host level ultimately form the basis of parasite infection patterns. In fish, diet range (number of prey taxa consumed) and prey selectivity (proportion of a particular prey taxon in the diet) have been shown to influence parasite infection levels. However, fish diet is most often characterized at the species or fish population level, thus ignoring variation among conspecific individuals and its potential effects on infection patterns among indivi- duals. Here, we examined parasite infections and stomach contents of New Zealand freshwater fish at the individual level. We tested for potential links between the richness, abundance and biomass of helminth parasites and the diet range and prey selectivity of individual fish hosts. There was no obvious link between individual fish host diet and hel- minth infection levels. Our results were consistent across multiple fish host and parasite species and contrast with those of earlier studies in which fish diet and parasite infection were linked, hinting at a true disconnect between host diet and measures of parasite infections in our study systems. -
A Bioturbation Classification of European Marine Infaunal
A bioturbation classification of European marine infaunal invertebrates Ana M. Queiros 1, Silvana N. R. Birchenough2, Julie Bremner2, Jasmin A. Godbold3, Ruth E. Parker2, Alicia Romero-Ramirez4, Henning Reiss5,6, Martin Solan3, Paul J. Somerfield1, Carl Van Colen7, Gert Van Hoey8 & Stephen Widdicombe1 1Plymouth Marine Laboratory, Prospect Place, The Hoe, Plymouth, PL1 3DH, U.K. 2The Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, NR33 OHT, U.K. 3Department of Ocean and Earth Science, National Oceanography Centre, University of Southampton, Waterfront Campus, European Way, Southampton SO14 3ZH, U.K. 4EPOC – UMR5805, Universite Bordeaux 1- CNRS, Station Marine d’Arcachon, 2 Rue du Professeur Jolyet, Arcachon 33120, France 5Faculty of Biosciences and Aquaculture, University of Nordland, Postboks 1490, Bodø 8049, Norway 6Department for Marine Research, Senckenberg Gesellschaft fu¨ r Naturforschung, Su¨ dstrand 40, Wilhelmshaven 26382, Germany 7Marine Biology Research Group, Ghent University, Krijgslaan 281/S8, Ghent 9000, Belgium 8Bio-Environmental Research Group, Institute for Agriculture and Fisheries Research (ILVO-Fisheries), Ankerstraat 1, Ostend 8400, Belgium Keywords Abstract Biodiversity, biogeochemical, ecosystem function, functional group, good Bioturbation, the biogenic modification of sediments through particle rework- environmental status, Marine Strategy ing and burrow ventilation, is a key mediator of many important geochemical Framework Directive, process, trait. processes in marine systems. In situ quantification of bioturbation can be achieved in a myriad of ways, requiring expert knowledge, technology, and Correspondence resources not always available, and not feasible in some settings. Where dedi- Ana M. Queiros, Plymouth Marine cated research programmes do not exist, a practical alternative is the adoption Laboratory, Prospect Place, The Hoe, Plymouth PL1 3DH, U.K. -
Characteristics and Potential Causes of Declining Diporeia Spp
Characteristics and Potential Causes of Declining Diporeia spp. Populations in Southern Lake Michigan and Saginaw Bay, Lake Huron Thomas F. Nalepa1 Great Lakes Environmental Research Laboratory, NOAA 2205 Commonwealth Blvd. Ann Arbor, Michigan, U.S.A. 48105 David L. Fanslow Great Lakes Environmental Research Laboratory, NOAA 2205 Commonwealth Blvd. Ann Arbor, Michigan, U.S.A. 48105 Gretchen Messick Cooperative Oxford Laboratory, NOAA 904 S. Morris Street Oxford, Maryland, U.S.A. 21654 Abstract Populations of the amphipods Diporeia spp. are declining in all of the Great Lakes except Lake Superior. We examine characteristics and potential causes of declines in southern Lake Michigan and outer Saginaw Bay, Lake Huron. Amphipod populations began to decline within 3-4 years after zebra mussels (Dreissena polymorpha) colonized both areas. In Lake Michigan, which was better studied, the decline occurred first in shallow waters (<30 m) and then progressed deeper (51-90 m). Between 1980- 1981 (pre-Dreissena) and 1998-1999 (post-Dreissena), densities at sites in these two depth intervals declined 92% 1 Corresponding author: [email protected] 157 and 58%, respectively. At a 45-m site in southeastern Lake Michigan, densities of Diporeia spp. declined to near zero within six months even though mussels were never collected at the site itself. At a nearby 45-m site, densities declined gradually to zero over a six-year period and correlated with increased mussel densities. Although mussels are likely outcompeting Diporeia spp. populations for food, and food limitation is probably a contributing factor to population declines, populations show no physiological signs of starvation; lipid content is at a maximum as densities approach zero. -
A New Species of the Genus Pseudocrangonyx (Crustacea, Amphipoda, Pseudocrangonyctidae) from Korea
A peer-reviewed open-access journal ZooKeys 735: 27–44 (2018) New Pseudocrangonyx from Korea 27 doi: 10.3897/zookeys.735.21697 RESEARCH ARTICLE http://zookeys.pensoft.net Launched to accelerate biodiversity research A new species of the genus Pseudocrangonyx (Crustacea, Amphipoda, Pseudocrangonyctidae) from Korea Chi-Woo Lee1,*, Ko Tomikawa2,*, Takafumi Nakano2,3, Gi-Sik Min1 1 Department of Biological Sciences, Inha University, Incheon 22212, South Korea 2 Department of Science Edu- cation, Graduate School of Education, Hiroshima University, Higashihiroshima 739-8524, Japan 3 Present ad- dress: Department of Zoology, Graduate School of Science, Kyoto University, Kyoto 606-8502, Japan Corresponding author: Gi-Sik Min ([email protected]) Academic editor: A. Myers | Received 17 October 2017 | Accepted 22 January 2018 | Published 6 February 2018 http://zoobank.org/502338A6-6CF7-4D4E-9B54-8B3615053149 Citation: Lee C-W, Tomikawa K, Nakano T, Min G-S (2018) A new species of the genus Pseudocrangonyx (Crustacea, Amphipoda, Pseudocrangonyctidae) from Korea. ZooKeys 735: 27–44. https://doi.org/10.3897/zookeys.735.21697 Abstract A new subterranean species of pseudocrangonyctid amphipod, Pseudocrangonyx daejeonensis sp. n. is de- scribed from the interstitial waters in Daejeon, Korea. Pseudocrangonyx daejeonensis sp. n. is distinguished from three morphologically similar congeners, P. coreanus Uéno, 1966, P. febras Sidorov, 2009, and P. gudariensis Tomikawa & Sato, 2016, by the characteristics of antenna 1, antenna 2, mandible, gnathopod 2, pleopods, uropods 1–2, and telson. Molecular phylogenetic analyses based on nuclear 28S rRNA and histone H3, and mitochondrial cytochrome c oxidase subunit I and 16S rRNA genes revealed that P. dae- jeonensis is a sister species of the unnamed Pseudocrangonyx sp. -
New Zealand Freshwater Sciences Society Newsletter Number 41
New Zealand Freshwater Sciences Society Newsletter Number 41 November 2005 New Zealand Freshwater Sciences Society Newsletter No. 41 November 2005 Contents Introduction to the Society ....................................................................... 3 Editorial ............................................................................................. 4 President’s comment ................................................................................ 5 Research news ...................................................................................... 6 Freshwater Sciences Society Conference, Rotorua, 26 – 30 November 2006 ...............34 S.I.L. 1987 Trust Fund Awards .................................................................35 New Zealand Freshwater Sciences Society Medal and Honorary Membership ...............38 Minutes of the 37th Annual General Meeting ....................................................39 of the New Zealand Limnological Society Inc. (2004) .........................................39 Conference prizes 2004...........................................................................47 Conference Prizes, 2005..........................................................................48 Special Publications................................................................................50 Publications and theses ...........................................................................50 Membership list....................................................................................61 How do I join?.....................................................................................78 -
Updates to the Sporadic Knowledge On
A peer-reviewed open-access journal SubterraneanUpdates Biology to 33:the 71–85 sporadic (2020) knowledge on microsporidian infections in groundwater amphipods 71 doi: 10.3897/subtbiol.33.48633 RESEARCH ARTICLE Subterranean Published by http://subtbiol.pensoft.net The International Society Biology for Subterranean Biology Updates to the sporadic knowledge on microsporidian infections in groundwater amphipods (Crustacea, Amphipoda, Niphargidae) Daniel Grabner1, Dieter Weber2, Alexander M. Weigand3 1 University of Duisburg-Essen, Aquatic Ecology and Centre for Water and Environmental Research, Univer- sitätsstr. 5, 45141 Essen, Germany 2 Université Libre de Bruxelles, Evolutionary Biology & Ecology group, Avenue F.D. Roosevelt 50, B-1050 Brussels, Belgium 3 Musée National d'Histoire Naturelle Luxembourg, 25 Rue Munster, 2160 Luxembourg, Luxembourg Corresponding author: Alexander M. Weigand ([email protected]) Academic editor: O. T. Moldovan | Received 20 November 2019 | Accepted 20 January 2020 | Published 13 February 2020 http://zoobank.org/78CFBE17-0918-455A-8813-C92324DBFCFE Citation: Grabner D, Weber D, Weigand AM (2020) Updates to the sporadic knowledge on microsporidian infections in groundwater amphipods (Crustacea, Amphipoda, Niphargidae). Subterranean Biology 33: 71–85. https://doi. org/10.3897/subtbiol.33.48633 Abstract A set of 69 specimens from 19 groundwater species of the genera Niphargus, Niphargellus, Microniphargus and Crangonyx was genetically screened for microsporidian infections. Samples mostly originated from groundwater-dependent spring environments (71%), natural caves (9%) and artificial caverns/tunnels (13%). Amphipod hosts were identified by morphology and/or molecular data, whereas microsporidian parasites were characterised by a genetic screening assay targeting a section of the small subunit rRNA gene. Five microsporidian species (Dictyocoela duebenum; Nosema sp.; Hyperspora aquatica and two unde- scribed Microsporidium spp.) were revealed from 13 host specimens (Niphargus schellenbergi; N.