Results 21 to 30 of about 1,032 (179)

Temporally consistent species differences in parasite infection but no evidence for rapid parasite-mediated speciation in Lake Victoria cichlid fish. [PDF]

J Evol Biol, 2020
Species composition of Cichlidogyrus infection was similar among the closely related cichlid species of the Lake Victoria radiation (in orange), but differed between this lineage and two distantly related species (belonging to nonradiating sister lineages, in blue).
Gobbin TP, Vanhove MPM, Pariselle A, Groothuis TGG, Maan ME, Seehausen O.   +5 more
europepmc   +2 more sources

Naupliar Stages of Hemicyclops japonicus (Copepoda: Poecilostomatoida) Reared in the Laboratory [PDF]

Journal of Crustacean Biology, 1997
ABSTRACT All 6 naupliar stages of Hemicyclops japonicus (Copepoda: Poecilostomatoida) are described on the basis of specimens reared in the laboratory. The appendages that are directly related to feeding, such as the coxa and basis of the second antenna and mandible, reach their final state of armature by the fourth naupliar stage.
Hiroshi Itoh, Shuhei Nishida
  +8 more sources

Phylogeny within the Chondracanthidae (Poecilostomatoida, Copepoda) [PDF]

Zoologica Scripta, 2003
The existing systematics of the Chondracanthidae is based predominantly on female characters and divides them into two subfamilies: Chondracanthinae and Lernentominae. Phylogenetic analyses using maximum parsimony were performed using 186 male and female characters. Different trees were generated when male and female characters were analysed separately.
Ostergaard, P, Boxshall, GA, Quicke, DLJ
openaire   +2 more sources

The ZooScan and the ZooCAM zooplankton imaging systems are intercomparable: A benchmark on the Bay of Biscay zooplankton

Limnology and Oceanography: Methods, Volume 21, Issue 11, Page 718-733, November 2023., 2023
ABSTRACT Zooplankton analysis represents a bottleneck in marine ecology studies due to the difficulty to obtain zooplankton data. The last decades have seen the intense development of zooplankton imaging systems, to increase the zooplankton data spatio‐temporal resolution as well as enabling the combination of size, taxonomy, and functional traits in ...
Nina Grandremy, Christine Dupuy, Pierre Petitgas, Sophie Le Mestre, Paul Bourriau, Antoine Nowaczyk, Bertrand Forest, Jean‐Baptiste Romagnan   +7 more
wiley   +1 more source

Dwarfs or giants? Sexual size dimorphism in Chondracanthidae (Copepoda, Poecilostomatoida) [PDF]

Crustaceana, 2005
Abstract in English: Sexual size dimorphism in the Chondracanthidae is very marked: whether it is a consequence of males being dwarfs or females becoming giants is investigated. Chondracanthid females are between two and 30 times larger than their conspecific males.
Ostergaard, P, Boxshall, GA, Quicke, DLJ
openaire   +3 more sources

Brasergasilus guaporensis sp. n. (COPEPODA: ERGASILIDAE) DAS BRÂNQUIAS DE Leporinus fasciatus (BLOCH, 1890) (CHARACIFORMES: ANOSTOMIDAE) DA AMAZÔNIA BRASILEIRA [PDF]

Acta Amazonica, 1993
Brasergasilus guaporensissp. n. (Copepoda, Poecilostomatoida, Ergasilidae) é proposta. Os espécimens foram coletados dos filamentos branquiais de Leporinus fasciatus(BLOCH, 1890) do Rio Guaporé, próximo a Pimenteiras, Rondônia, Brasil.
José Celso O. MALTA
doaj   +1 more source

Evaluation of marine zooplankton community structure through environmental DNA metabarcoding. [PDF]

Limnol Oceanogr Methods, 2018
Abstract Zooplankton dominate the abundance and biomass of multicellular animals in pelagic marine environments; however, traditional methods to characterize zooplankton communities are invasive and laborious. This study compares zooplankton taxonomic composition revealed through metabarcoding of the cytochrome oxidase I (COI) and 18S rRNA genes to ...
Djurhuus A, Pitz K, Sawaya NA, Rojas-Márquez J, Michaud B, Montes E, Muller-Karger F, Breitbart M.   +7 more
europepmc   +2 more sources

Ergasilus triangularis sp. n. (COPEPODA: ERGASILIDAE) das BRÂNQUIAS de Laemolyta taeniata (KNER, 1859), (CHARACIFORMES: ANOSTOMIDAE) DA AMAZÔNIA BRASILEIRA [PDF]

Acta Amazonica, 1994
Ergasilus triangularis sp. nov. (Copepoda, Poecilostomatoida, Ergasilidae) é proposta. Os espécimens foram coletados dos filamentos branquiais de Laemolyta taeniata dos rios Jamari, Guaporé e Pacaás Novos do estado de Rondônia, Brasil. A nova espécie tem
José Celso O. MALTA
doaj   +1 more source

Testing the usefulness of optical data for zooplankton long‐term monitoring: Taxonomic composition, abundance, biomass, and size spectra from ZooScan image analysis

Limnology and Oceanography: Methods, Volume 20, Issue 7, Page 428-450, July 2022., 2022
Abstract The pelagic ecosystem of the Arctic Ocean is threatened by severe changes such as the reduction in sea‐ice coverage and increased inflow of warmer Atlantic water. The latter is already altering the zooplankton community, highlighting the need for monitoring studies.
Astrid Cornils, Karolin Thomisch, Joanna Hase, Nicole Hildebrandt, Holger Auel, Barbara Niehoff   +5 more
wiley   +1 more source

A molecular‐based identification resource for the arthropods of Finland

Molecular Ecology Resources, Volume 22, Issue 2, Page 803-822, February 2022., 2022
Abstract To associate specimens identified by molecular characters to other biological knowledge, we need reference sequences annotated by Linnaean taxonomy. In this study, we (1) report the creation of a comprehensive reference library of DNA barcodes for the arthropods of an entire country (Finland), (2) publish this library, and (3) deliver a new ...
Tomas Roslin, Panu Somervuo, Mikko Pentinsaari, Paul D. N. Hebert, Jireh Agda, Petri Ahlroth, Perttu Anttonen, Jouni Aspi, Gergin Blagoev, Santiago Blanco, Dean Chan, Tom Clayhills, Jeremy deWaard, Stephanie deWaard, Tyler Elliot, Riikka Elo, Sami Haapala, Eero Helve, Jari Ilmonen, Petri Hirvonen, Chris Ho, Juhani Itämies, Vladislav Ivanov, Jevgeni Jakovlev, Aino Juslén, Reijo Jussila, Jere Kahanpää, Lauri Kaila, Jari‐PekkaKaitila, Ari Kakko, Iiro Kakko, Ali Karhu, Sami Karjalainen, Jostein Kjaerandsen, Janne Koskinen, Erkki M. Laasonen, Leena Laasonen, Erkka Laine, Petri Lampila, Valerie Levesque‐Beaudin, Liuqiong Lu, Meri Lähteenaro, Pekka Majuri, Sampsa Malmberg, Ramya Manjunath, Petri Martikainen, Jaakko Mattila, Jaclyn McKeown, Petri Metsälä, Margarita Miklasevskaja, Meredith Miller, Renee Miskie, Arto Muinonen, Veli‐MattiMukkala, Suresh Naik, Nadia Nikolova, Kari Nupponen, Otso Ovaskainen, Ika Österblad, Lauri Paasivirta, Timo Pajunen, Petri Parkko, Juho Paukkunen, Ritva Penttinen, Kate Perez, Jaakko Pohjoismäki, Sean Prosser, Martti Raekunnas, Miduna Rahulan, Meeri Rannisto, Sujeevan Ratnasingham, Pekka Raukko, Aki Rinne, Teemu Rintala, Susana Miranda Romo, Jukka Salmela, Juha Salokannel, Riitta Savolainen, Leif Schulman, Pasi Sihvonen, Dina Soliman, Jayme Sones, Claudia Steinke, Gunilla Ståhls, Jukka Tabell, Mikko Tiusanen, Gergely Várkonyi, Eero J. Vesterinen, Esko Viitanen, Veli Vikberg, Matti Viitasaari, Jussi Vilen, Connor Warne, Catherine Wei, Kaj Winqvist, Evgeny Zakharov, Marko Mutanen   +96 more
wiley   +1 more source