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https://www.readbyqxmd.com/read/29134016/a-new-species-of-notodiaptomus-from-the-ecuadorian-andes-copepoda-calanoida-diaptomidae
#1
Miguel Alonso, Edinaldo N Dos Santos-Silva, Damià Jaume
Notodiaptomus cannarensissp. n. is described from a reservoir on the Amazonian slope of the Ecuadorian Andes. The new species is unique among diaptomid calanoid copepods in the display of hypertrophied, symmetrical wing-like extensions at each side of the female composite genital somite. Furthermore, it displays a female urosome reduced to only two somites due to the incorporation of abdominal somites III and IV to the composite genital double-somite, and a male right fifth leg with the outer spine of second exopodal segment recurved and implanted proximally on margin...
2017: ZooKeys
https://www.readbyqxmd.com/read/29128528/amblyospora-khaliulini-microsporidia-amblyosporidae-investigations-on-its-life-cycle-and-ecology-in-aedes-communis-diptera-culicidae-and-acanthocyclops-vernalis-copepoda-cyclopidae-with-redescription-of-the-species
#2
Theodore G Andreadis, Michael C Thomas, John J Shepard
A multi-year study was conducted to examine the natural ecology of the microsporidium Amblyospora khaliulini and more fully characterize parasite development and histopathology in all stages of its primary mosquito host, Aedes communis and intermediate copepod host, Acanthocyclops vernalis with redescription of the species. A. khaliulini exhibits polymorphic development, produces three morphologically and functionally distinct spores, and is both horizontally and vertically transmitted. Development in A. vernalis is restricted to females, occurs within the ovaries and results in death of the host...
November 8, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/29118642/a-new-species-of-mongolodiaptomus-kiefer-1938-from-northeast-thailand-and-a-key-to-the-species-crustacea-copepoda-calanoida-diaptomidae
#3
Santi Watiroyram, La-Orsri Sanoamuang
This study describes the new species Mongolodiaptomus loeiensissp. n. collected from a temporary pond nearby a cave located in Loei Province, in northeastern Thailand. Mongolodiaptomus loeiensissp. n. is similar to M. calcarus (Shen & Tai, 1965) in the male but can be distinguished from its congeners by the following unique characteristics in the males: (1) the right caudal ramus has 3 ventral chitinous prominences; (2) intercoxal plate of P5 is produced into 2 spine-like lobes on distal margin; (3) the basis of right P5 has a subglobular chitinous prominence on mid-distal caudal surface; and (4) the principal lateral spine on the right Exp-2 P5 is extremely bent at its tip...
2017: ZooKeys
https://www.readbyqxmd.com/read/29118635/a-new-species-of-monstrillopsis-crustacea-copepoda-monstrilloida-from-the-lower-northwest-passage-of-the-canadian-arctic
#4
Aurélie Delaforge, Eduardo Suárez-Morales, Wojciech Walkusz, Karley Campbell, C J Mundy
A new species of monstrilloid copepod, Monstrillopsis planifronssp. n., is described from an adult female that was collected beneath snow-covered sea ice during the 2014 Ice Covered Ecosystem - CAMbridge bay Process Study (ICE-CAMPS) in Dease Strait of the Canadian Arctic Archipelago. Currently, up to six species of this order are known to occur in polar latitudes. The new species described herein shares similarities with Monstrillopsis dubia (Scott, 1904) but differs in its body proportions and cephalothorax ornamentation; the cephalothorax is covered by minute scattered papillae on dorsal and ventral surfaces; this species has a reduced fifth leg endopod, fifth leg exopod armed with three setae, antennule with fused segments 3-4, and the genital double-somite bears unique posterolateral processes...
2017: ZooKeys
https://www.readbyqxmd.com/read/29110106/diversity-and-distribution-of-heterotrophic-dinoflagellates-from-the-coastal-waters-of-port-blair-south-andaman
#5
S Sai Elangovan, G Padmavati
The interaction between the environment and heterotrophic dinoflagellates inhabiting coastal waters of South Andaman was studied based on year round collections made during September 2012-August 2013 in the bay, eastern, and western region of South Andaman. The distribution pattern of microzooplankton in South Andaman showed high abundance in eutrophic waters (bay region) and gradually decreased towards the off shore region. Microzooplankton community comprised of six different taxa, viz. tintinnids, heterotrophic dinoflagellates, non-loricate ciliates, Foraminifera, Rotifera, and Copepoda (nauplii)...
November 6, 2017: Environmental Monitoring and Assessment
https://www.readbyqxmd.com/read/28921570/behavioural-responses-of-infective-stage-copepodids-of-the-salmon-louse-lepeophtheirus-salmonis-copepoda-caligidae-to-host-related-sensory-cues
#6
D M Fields, A B Skiftesvik, H I Browman
The salmon louse (Lepeophtheirus salmonis [Krøyer]) is an ectoparasitic copepod that causes disease in farmed Atlantic salmon (Salmo salar) and may play a role in the decline of some wild salmonid populations. Controlling lice infestations is a major cost for the salmon industry; this has stimulated the pursuit of alternative approaches to controlling them. One such approach involves determining, and then disrupting, the sensory cues used by the parasite to find its host. In this context, we examined the behavioural responses of lice copepodids to light flicker-simulating light reflecting from the sides of the salmon host and/or the shadows cast by fish passing overhead-and water-soluble chemicals released from the skin of the salmon...
September 17, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28895011/caligus-fajerae-n-sp-copepoda-caligidae-parasitic-on-the-pacific-sierra-scomberomurus-sierra-jordan-starks-actinopterygii-scombridae-in-the-pacific-ocean-off-mexico
#7
Francisco Neptalí Morales-Serna, Alejandro Oceguera-Figueroa, Danny Tang
A new species of parasitic copepod, Caligus fajerae n. sp. (Caligidae), is described from Scomberomorus sierra Jordan & Starks (Scombridae) caught off the northwestern coast of Mexico. The new species morphologically resembles Caligus cybii Bassett-Smith, 1898, Caligus kanagurta Pillai, 1961, Caligus pelamydis Krøyer, 1863 and Caligus robustus Bassett-Smith, 1898, all of which have been reported from scombrid hosts. Caligus fajerae n. sp. differs from these species by having spinules on the abdomen and caudal ramus, two processes on the proximal antennulary segment, fine striations on the claw of the antenna and maxilliped, a stouter and more recurved maxillulary dentiform process, shorter tines on the sternal furca, two additional patches of spinules on the distal endopodal segment of leg 2, a sclerotised lobe on the anteromedian surface of the leg 3 protopod and serrations on both margins of the first exopodal spine of leg 3...
October 2017: Systematic Parasitology
https://www.readbyqxmd.com/read/28831035/molecular-phylogeny-and-revision-of-copepod-orders-crustacea-copepoda
#8
Sahar Khodami, J Vaun McArthur, Leocadio Blanco-Bercial, Pedro Martinez Arbizu
For the first time, the phylogenetic relationships between representatives of all 10 copepod orders have been investigated using 28S and 18S rRNA, Histone H3 protein and COI mtDNA. The monophyly of Copepoda (including Platycopioida Fosshagen, 1985) is demonstrated for the first time using molecular data. Maxillopoda is rejected, as it is a polyphyletic group. The monophyly of the major subgroups of Copepoda, including Progymnoplea Lang, 1948 (=Platycopioida); Neocopepoda Huys and Boxshall, 1991; Gymnoplea Giesbrecht, 1892 (=Calanoida Sars, 1903); and Podoplea Giesbrecht, 1892, are supported in this study...
August 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28769694/a-new-species-of-notodiaptomus-from-the-amazon-basin-crustacea-copepoda-calanoida-diaptomidae
#9
Daniel Previattelli, Gilmar Perbiche-Neves, Carlos E F da Rocha
A new Diaptomidae species is presented from the Neotropical region. It was found in two Amazonian lakes, Ressaca and Arapujá, both in Pará State, Brazil. The lakes are 400 km apart and threatened by the building of reservoirs for hydropower generation and pollution by human settlements. The new species resembles N. paraensis Dussart & Robertson, 1984, but it can be distinguished from this species and other congeners in having a special process on the fifth leg basis of the male, by the place of insertion of lateral spine in the last segment of right P5 of male, the shape and relationship between length and width of segments of male and female P5 exopodite 2 with stout inner process bearing short setules and outer small spine, exopodite 3, with two terminal setae, outer smaller; endopodite 1-segmented with one subterminal seta and oblique comb of spinules, the presence of a line of dorsal spinules at the distal margin of thoracic somites in both sexes...
2017: ZooKeys
https://www.readbyqxmd.com/read/28769658/a-new-anchialine-stephos-scott-from-the-yucatan-peninsula-with-notes-on-the-biogeography-and-diversity-of-the-genus-copepoda-calanoida-stephidae
#10
Eduardo Suárez-Morales, Martha A Gutiérrez-Aguirre, Adrián Cervantes-Martínez, Thomas M Iliffe
Surveys of the anchialine crustacean fauna of the Yucatan Peninsula (YP), Mexico, have revealed the occurrence of calanoid copepods. The genus Stephos Scott, 1892, belonging to the family Stephidae is among the most frequent and widely distributed groups in anchialine caves but has not been hitherto recorded from the YP. Recent collections from an anchialine cave in an island off the northern coast of the YP yielded many specimens of a new species of Stephos. The new taxon, S. fernandoisp. n., is described here based on male and female specimens...
2017: ZooKeys
https://www.readbyqxmd.com/read/28769625/two-new-species-of-leptopsyllus-from-korea-copepoda-harpacticoida-paramesochridae
#11
Jinwook Back, Wonchoel Lee
Two new species of Leptopsyllus are described from the subtidal zone of Korea. Both species were assigned to the subgenus Leptopsyllus (Leptopsyllus) T. Scott, 1894, based on following three characters: two-segmented rami of P1, absence of endopod on P2 and P3, and presence of one-segmented endopod of P4. L. (L.) pundius sp. n. is most closely related to L. (L.) punctatus Mielke, 1894, however clearly distinguishable from it based on mandibular exopod with two setae, shape of P6, and caudal seta III ornamented with spinules in the new species...
2017: ZooKeys
https://www.readbyqxmd.com/read/28746553/gill-parasites-of-fish-from-two-estuaries-in-northeastern-brazil-new-hosts-and-geographical-records
#12
Jéssica E S A Golzio, Júlia M Falkenberg, Rayssa C G Praxedes, Anderson S Coutinho, Mylena K Laurindo, André Pessanha, Rubens R Madi, Joana Patrício, Ana L Vendel, Geza T R Souza, Cláudia M Melo, Ana Carolina F Lacerda
Parasites are important components of communities and constitute great part of the biological diversity found in ecosystems, providing valuable information about their hosts and the environment in which they live. However, despite its importance, parasitic diversity is still not well known in some regions of Brazil, especially with respect to fish parasites in the Northeast Region. The present study aims to perform the survey of gill parasites of fish from two tropical estuaries located in northeastern Brazil: Paraíba and Mamanguape rivers...
July 20, 2017: Anais da Academia Brasileira de Ciências
https://www.readbyqxmd.com/read/28677150/histopathological-changes-on-the-gills-of-asp-aspius-aspius-and-european-catfish-silurus-glanis-caused-by-lamproglena-pulchella-and-a-lamproglena-sp-copepoda-lernaeidae-respectively
#13
K Molnár, A Avenant-Oldewage, B Sellyei, Á Varga, C Székely
In a parasitology survey of Hungarian fishes, heavy infections of parasitic copepods Lamproglena pulchella and a Lamproglena sp. were found in the gills of the asp and the European catfish, respectively. Individuals of both fish species were emaciated and infected with hundreds of Lamproglena. Copepods located close to the tip of gill filaments and formed a depression at the attachment sites. In histological sections, cell degenerations and local haemorrhages were present adjacent to the maxillipeds and where the maxillary claws pierced the gill tissue...
July 5, 2017: Journal of Fish Diseases
https://www.readbyqxmd.com/read/28649318/zooplankton-communities-and-bythotrephes-longimanus-in-lakes-of-the-montane-region-of-the-northern-alps
#14
Zsófia Horváth, Csaba F Vad, Christian Preiler, Julia Birtel, Blake Matthews, Radka Ptáčníková, Robert Ptacnik
Lakes in the Alps represent a considerable fraction of nutrient-poor lakes in Central Europe, with unique biodiversity and ecosystem properties. Although some individual lakes are well-studied, less knowledge is available on large-scale patterns essential to generalise the understanding of their functioning. Here, we aimed to describe crustacean zooplankton communities (Cladocera, Copepoda) and identify their environmental drivers in the pelagic zone of 54 oligotrophic lakes in the montane region of the Alps (400-1200 m) in Austria, Germany, and Switzerland, covering a spatial scale of 650 km...
May 2, 2017: Inland Waters
https://www.readbyqxmd.com/read/28610128/review-of-i-pennella-i-oken-1816-copepoda-pennellidae-with-a-description-of-i-pennella-i-i-benzi-i-sp-nov-a-parasite-of-escolar-i-lepidocybium-i-i-flavobrunneum-i-pisces-in-the-northwest-atlantic-ocean
#15
W E Hogans
The genus Pennella Oken, 1816, mesoparasitic copepods from marine fish and mammals, is reviewed with the objective of determining the validity of members of the genus. Details of the external morphological structures of the adult female are presented. Pennella species are differentiated based on a combination of characters: the type of host parasitized, overall length of the parasite, shape, size and configuration of cephalothoracic papillae, segmentation of the first and second antenna, holdfast horn number, shape and configuration, and structure of the abdominal plumes...
March 17, 2017: Zootaxa
https://www.readbyqxmd.com/read/28610056/a-new-asterocherid-genus-copepoda-siphonostomatoida-associated-with-i-callyspongia-i-duchassaing-amp-michelotti-and-reassessment-of-six-species-of-i-asterocheres-i-boeck
#16
Roberta Canário, Carlos Eduardo Falavigna DA Rocha, Elizabeth Neves, Rodrigo Johnsson
The family Asterocheridae Giesbrecht has several genera associated with sponges including Asterocheres Boeck, 1859. The type genus is commonly found in sponges but it is also recorded in echinoderms, bryozoans, and corals. A revision of the diagnosis of Asterocheres conducted in 2010 was the beginning of a reorganization process, culminating in the present status of 63 valid species. This study describes a new species and genus of the Asterocheridae. Neoasterocheres gen. nov. shares many characteristics with Asterocheres sensu stricto, except for the antennule segmentation which shows ancestral segments IX-XII fused to segment XIII...
March 27, 2017: Zootaxa
https://www.readbyqxmd.com/read/28609898/fauna-of-cladocera-and-copepoda-from-xinjiang-uyghur-autonomous-region-china
#17
Elena S Chertoprud, Artem Y Sinev, Inta Dimante-Deimantovica
This study evaluates the species composition of Cladocera and Copepoda in the five lakes of the Bogda-Shan Mountain range and in the floodplain of the Tarim and Konchedarya rivers located in the Xinjiang Uygur Autonomous Region of China (Xinjiang). We collected seven species of Cladocera and six species of Copepoda. Seven species were identified as new for Xinjiang fauna, and two species (Cyclops cf. herberti Einsle, 1996, and Eucyclops roseus Ishida, 1997) were first records for China. Herein, we characterize the distribution ranges for the detected species and provide taxonomic remarks...
May 3, 2017: Zootaxa
https://www.readbyqxmd.com/read/28603248/revision-of-the-i-remaneicaris-i-i-argentina-i-group-copepoda-harpacticoida-parastenocarididae-supplementary-description-of-species-and-description-of-the-first-semi-terrestrial-i-remaneicaris-i-from-the-tropical-forest-of-southeast-mexico
#18
Paulo Henrique C Corgosinho, Nancy F Mercado-Salas, Pedro Martínez Arbizu, Edinaldo Nelson Dos Santos Silva, Terue C Kihara
Remaneicaris is a species-rich Neotropical monophyletic group, easily recognized by the synapomorphic position of the outer seta of the third exopodite of leg 4, localized at 2/3 of the outer margin. The genus, comprising 35 species in five monophyletic groups, plus R. ignotus and R. meyerabichi, retains an unusual set of plesiomorphic characters. Herein we supplement the descriptions of the species belonging to the Remaneicaris argentina-group, and describe a new species from the tropical forest of Southeast Mexico...
March 6, 2017: Zootaxa
https://www.readbyqxmd.com/read/28582411/ionotropic-receptors-signal-host-recognition-in-the-salmon-louse-lepeophtheirus-salmonis-copepoda
#19
Anna Z Komisarczuk, Sindre Grotmol, Frank Nilsen
A remarkable feature of many parasites is a high degree of host specificity but the mechanisms behind are poorly understood. A major challenge for parasites is to identify and infect a suitable host. Many species show a high degree of host specificity, being able to survive only on one or a few related host species. To facilitate transmission, parasite's behavior and reproduction has been fine tuned to maximize the likelihood of infection of a suitable host. For some species chemical cues that trigger or attract the parasite in question have been identified but how metazoan parasites themselves receive these signals remains unknown...
2017: PloS One
https://www.readbyqxmd.com/read/28573548/redescription-of-tripaphylus-musteli-van-beneden-1851-copepoda-sphyriidae-and-the-relegation-of-paeon-wilson-1919-to-synonymy-with-tripaphylus-richiardi-in-anonymous-1878
#20
George W Benz, Geoffrey A Boxshall
Tripaphylus musteli (van Beneden, 1851) (Copepoda, Siphonostomatoida, Sphyriidae) is redescribed from an adult female collected from the branchial chamber of a starry smooth-hound, Mustelus asterias Cloquet (Carcharhiniformes, Triakidae), captured in the English Channel off Portland, UK. The new account of T. musteli is the first based on a complete adult female and highlighted the lack of a robust distinction separating Tripaphylus Richiardi, in Anonymous, 1878 and Paeon Wilson, 1919 prompting us to relegate Paeon to a junior subjective synonym of Tripaphylus...
July 2017: Systematic Parasitology
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