Amphipod Newsletter 24
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On the Current State of Taxonomy of the Baikal Lake Amphipods (Crustacea: Amphipoda) and the Typological Ways of Constructing Their System
Arthropoda Selecta 28(3): 374–402 © ARTHROPODA SELECTA, 2019 On the current state of taxonomy of the Baikal Lake amphipods (Crustacea: Amphipoda) and the typological ways of constructing their system Î ñîâðåìåííîì ñîñòîÿíèè òàêñîíîìèè áàéêàëüñêèõ àìôèïîä (Crustacea: Amphipoda) è òèïîëîãè÷åñêîì ñïîñîáå ïîñòðîåíèÿ èõ ñèñòåìû V.V. Takhteev1, 2 Â.Â. Òàõòååâ1, 2 1 Department of Biological and Soil Science at Irkutsk State University, Karl Marx St. 1, Irkutsk 664003, Russia. E-mail: [email protected] 1 Иркутский государственный университет, биолого-почвенный факультет, ул. К. Маркса, 1, Иркутск 664003, Россия. E-mail: [email protected] 2 Baikal Museum of Irkutsk Scientific Center SB RAS, Akademicheskaya St. 1, Listvyanka Settl., Irkutsk Region 664520, Russia. 2 Байкальский Музей Иркутского научного центра Сибирского отделения Российской академии наук, ул. Академическая, 1, пос. Листвянка Иркутской обл. 664520, Россия. KEY WORDS: amphipods, Lake Baikal, taxonomy, taxonomic inflation, archetype, core, deviations, estab- lishment of families. КЛЮЧЕВЫЕ СЛОВА: амфиподы, озеро Байкал, таксономия, таксономическая инфляция, архетип, ядро, отклонения, установление семейств. Editorial note On the publication “On the current state of taxonomy of the Baikal Lake amphipods (Crustacea, Amphipoda) and the typological ways of constructing their system” by V.V. Takhteev In this issue we present an extensive article prepared by Prof. Vadim V. Takhteev, which is based on his long time effort in the study of diversity of amphipods in Lake Baikal and its watershed. This paper is highly polemical and may even seem either archaic or heretical in the time of domination of the phylogenetic paradigms in systematics. The author advocates classical morphological taxonomy, which own tradition, methods (disregarding whether we call it typology or not) and the language are significantly older than the modern phylogenetic approach. -
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. -
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. -
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. -
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. -
Amphipod Newsletter 39 (2015)
AMPHIPOD NEWSLETTER 39 2015 Interviews BIBLIOGRAPHY THIS NEWSLETTER PAGE 19 FEATURES INTERVIEWS WITH ALICJA KONOPACKA AND KRZYSZTOF JAŻDŻEWSKI PAGE 2 MICHEL LEDOYER WORLD AMPHIPODA IN MEMORIAM DATABASE PAGE 14 PAGE 17 AMPHIPOD NEWSLETTER 39 Dear Amphipodologists, Statistics from We are delighted to present to you Amphipod Newsletter 39! this Newsletter This issue includes interviews with two members of our amphipod family – Alicja Konopacka and Krzysztof Jazdzewski. Both tell an amazing story of their lives and work 2 new subfamilies as amphipodologists. Sadly we lost a member of our amphipod 21 new genera family – Michel Ledoyer. Denise Bellan-Santini provides us with a fitting memorial to his life and career. Shortly many 145 new species members of the amphipod family will gather for the 16th ICA in 5 new subspecies Aveiro, Portugal. And plans are well underway for the 17th ICA in Turkey (see page 64 for more information). And, as always, we provide you with a Bibliography and index of amphipod publications that includes citations of 376 papers that were published in 2013-2015 (or after the publication of Amphipod Newsletter 38). Again, what an amazing amount of research that has been done by you! Please continue to notify us when your papers are published. We hope you enjoy your Amphipod Newsletter! Best wishes from your AN Editors, Wim, Adam, Miranda and Anne Helene !1 AMPHIPOD NEWSLETTER 39 2015 Interview with two prominent members of the “Polish group”. The group of amphipod workers in Poland has always been a visible and valued part of the amphipod society. They have organised two of the Amphipod Colloquia and have steadily provided important results in the world of amphipod science. -
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The Author(s) BMC Genomics 2016, 17(Suppl 14):1016 DOI 10.1186/s12864-016-3357-z RESEARCH Open Access Evolution of mitochondrial genomes in Baikalian amphipods Elena V. Romanova1, Vladimir V. Aleoshin2,3, Ravil M. Kamaltynov1, Kirill V. Mikhailov2,3, Maria D. Logacheva2,3,4, Elena A. Sirotinina1, Alexander Yu. Gornov5, Anton S. Anikin5 and Dmitry Yu. Sherbakov1,6* From The International Conference on Bioinformatics of Genome Regulation and Structure\Systems Biology (BGRS\SB-2016) Novosibirsk, Russia. 29 August-2 September 2016 Abstract Background: Amphipods (Crustacea) of Lake Baikal are a very numerous and diverse group of invertebrates generally believed to have originated by adaptive radiation. The evolutionary history and phylogenetic relationships in Baikalian amphipods still remain poorly understood. Sequencing of mitochondrial genomes is a relatively feasible way for obtaining a set of gene sequences suitable for robust phylogenetic inferences. The architecture of mitochondrial genomes also may provide additional information on the mechanisms of evolution of amphipods in Lake Baikal. Results: Three complete and four nearly complete mitochondrial genomes of Baikalian amphipods were obtained by high-throughput sequencing using the Illumina platform. A phylogenetic inference based on the nucleotide sequences of all mitochondrial protein coding genes revealed the Baikalian species to be a monophyletic group relative to the nearest non-Baikalian species with a completely sequenced mitochondrial genome - Gammarus duebeni.Thephylogeny of Baikalian amphipods also suggests that the shallow-water species Eulimnogammarus has likely evolved from a deep-water ancestor, however many other species have to be added to the analysis to test this hypothesis. The gene order in all mitochondrial genomes of studied Baikalian amphipods differs from the pancrustacean ground pattern. -
Population Genetic Structure of New Zealand's Endemic Corophiid
Blackwell Science, LtdOxford, UKBIJBiological Journal of the Linnean Society0024-4066The Linnean Society of London, 2003? 2003 811 119133 Original Article POPULATION GENETIC STRUCTURE OF NEW ZEALAND AQUATIC AMPHIPODS M. I. STEVENS and I. D. HOGG Biological Journal of the Linnean Society, 2004, 81, 119–133. With 3 figures Population genetic structure of New Zealand’s endemic corophiid amphipods: evidence for allopatric speciation MARK I. STEVENS* and IAN D. HOGG Centre for Biodiversity and Ecology Research, Department of Biological Sciences, University of Waikato, Private Bag 3105, Hamilton, New Zealand Received 2 January 2003; accepted for publication 28 July 2003 Allozyme electrophoresis was used to examine population genetic structure at inter- and intraspecific levels for the New Zealand endemic corophiid amphipods, Paracorophium lucasi and P. excavatum. Individuals were collected from estuarine and freshwater habitats from North, South and Chatham Islands. Analyses of genetic structure among interspecific populations indicated clear allelic differentiation between the two Paracorophium species (Nei’s genetic distance, D = 1.62), as well as considerable intraspecific substructuring (D = 0.15–0.65). These levels of diver- gence are similar to interspecific levels for other amphipods and it is proposed that at least two groups from the P. lucasi complex and three from the P. excavatum complex correspond to sibling species. In most cases allopatry can account for the differentiation among the putative sibling species. For populations that share a common coastline we found low levels of differentiation and little or no correlation with geographical distance, suggesting that gene flow is adequate to maintain homogeneous population genetic structure. By contrast, populations on separate coastlines (i.e. -
Molecular Data Suggest Multiple Origins and Diversification Times Of
www.nature.com/scientificreports OPEN Molecular data suggest multiple origins and diversifcation times of freshwater gammarids on the Aegean archipelago Kamil Hupało1,3*, Ioannis Karaouzas2, Tomasz Mamos1,4 & Michał Grabowski1 Our main aim was to investigate the diversity, origin and biogeographical afliations of freshwater gammarids inhabiting the Aegean Islands by analysing their mtDNA and nDNA polymorphism, thereby providing the frst insight into the phylogeography of the Aegean freshwater gammarid fauna. The study material was collected from Samothraki, Lesbos, Skyros, Evia, Andros, Tinos and Serifos islands as well as from mainland Greece. The DNA extracted was used for amplifcation of two mitochondrial (COI and 16S) and two nuclear markers (28S and EF1-alpha). The multimarker time- calibrated phylogeny supports multiple origins and diferent diversifcation times for the studied taxa. Three of the sampled insular populations most probably represent new, distinct species as supported by all the delimitation methods used in our study. Our results show that the evolution of freshwater taxa is associated with the geological history of the Aegean Basin. The biogeographic afliations of the studied insular taxa indicate its continental origin, as well as the importance of the land fragmentation and the historical land connections of the islands. Based on the fndings, we highlight the importance of studying insular freshwater biota to better understand diversifcation mechanisms in fresh waters as well as the origin of studied Aegean freshwater taxa. Te Mediterranean islands are considered natural laboratories of evolution, exhibiting high levels of diversity and endemism, making them a vital part of one of the globally most precious biodiversity hotspots and a model system for studies of biogeography and evolution1–4. -
Open Mcmullin-Phd-Thesis2.Pdf
The Pennsylvania State University The Graduate School Department of Biology PHYLOGEOGRAPHY OF DEEP-SEA VESTIMENTIFERANS AND A POPULATION GENETICS STUDY OF TWO SPECIES, LAMELLIBRACHIA LUYMESI AND SEEPIOPHILA JONESI, FROM THE GULF OF MEXICO A Thesis in Biology by Erin R. McMullin © 2003 Erin R. McMullin Submitted in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy August 2003 The thesis of Erin McMullin has been reviewed and approved* by the following: Charles R. Fisher Professor of Biology Thesis Co-Adviser Co-Chair of Committee Stephen W. Schaeffer Associate Professor of Biology Thesis Co-Adviser Co-Chair of Committee Andrew Clark Professor of Biology Lee Kump Professor of Geosciences Kimberlyn Nelson Forensic Examiner Mitotyping Technologies Special Signatory Douglas Cavener Professor of Biology Head of the Biology Department * Signatures are on file at the Graduate School iii ABSTRACT First discovered in 1977 on the Galapagos Rift, vestimentiferans are a group of deep-sea annelids found in a variety of environments worldwide. Vestimentiferan communities are isolated pockets of high biomass in the otherwise nutrient-poor deep-sea. Chemosynthesis, not photosynthesis, is the underlying energy source for vestimentiferans, which entirely lack a digestive tract and rely on internal sulfide-oxidizing symbionts for fixed carbon. Symbionts appear to be acquired by the motile vestimentiferan larvae before they settle and become sessile adults. The ability of both these organisms and their symbionts to disperse across the sometimes considerable distances between sulfidic environments has been a topic of study for over a decade. This study addresses the question of dispersal by two different methods, with a biogeographical approach of all vestimentiferan species, and through the population genetic analysis of two species within the Gulf of Mexico. -
Table of Contents
TABLE OF CONTENTS Table of Contents.................................................................................................................1 Introduction..........................................................................................................................3 Amphipod Superfamilies.....................................................................................................4 Index of Families.................................................................................................................7 I Suborder Ingolfiellidea....................................................................................................12 Suborder Senticaudata Infraorder Talitrida II. Superfamily Talitroidea........................................................................20 Infraorder Corophiida III. Superfamily Aoroidea.........................................................................65 IV. Superfamily Cheluroidea.....................................................................91 V. Superfamily Chevalioidea....................................................................96 VI. Superfamily Corophioidea.................................................................100 Infraorder Caprellida VII. Superfamily Caprelloidea................................................................142 VIII. Superfamily Neomegamphopoidea................................................191 IX. Superfamily Photoidea......................................................................199 Infraorder Hadziida X.