Results 71 to 80 of about 1,927 (207)

Communities of metazoan parasites in seven sympatric skate species (Elasmobranchii, Rajidae) from the English Channel and Celtic Sea differing in conservation status

Journal of Fish Biology, Volume 105, Issue 3, Page 975-987, September 2024.
Abstract Elasmobranch populations are in steep decline mainly due to overfishing bycatch, but parasites may accelerate the collapse of vulnerable and/or highly parasitized species. We therefore studied metazoan parasites of Rajidae from the northeast Atlantic: vulnerable Leucoraja fullonica, near‐threatened Raja brachyura, Raja clavata, Raja ...
Claudia Gérard, Caroline Trochard, Maxime R. Hervé, Héloïse Hamel, Mélanie Gay, Michel Barbier, Thomas Trancart, Thomas Barreau   +7 more
wiley   +1 more source

Parasitofauna de cachara cultivado em tanque-rede no rio Paraguai

Pesquisa Agropecuária Brasileira, 2013
O objetivo deste trabalho foi descrever a fauna parasitária de cachara (Pseudoplatystoma reticulatum) cultivado em tanque-rede, no rio Paraguai. Dez peixes com peso médio de 598,0±81,3 g e comprimento total médio de 38,6±1,6 cm foram examinados. Todos os
Gabriela Tomas Jeronimo, Arlene Sobrinho Ventura, Santiago Benites de Pádua, Fabiana Satake, Marcia Mayumi Ishikawa, Mauricio Laterça Martins   +5 more
doaj   +1 more source

Investigation on parasitic infestation of Labeo rohita (Hamilton, 1822) in the south‐western region of Bangladesh

Veterinary Medicine and Science, Volume 10, Issue 4, July 2024.
Over the study, 180 L. rohita specimens were examined,, revealing the presence of six distinct parasite species, consisting of endoparasites. Through microscopic examination, a total of 323 parasites were investigated, categories including Cestode, Nematode, Acanthocephala, Trematode and Digenia, predominantly residing in the intestines and liver of L.
Basir Ahammad, Bhaskar Chandra Majumdar, Angkur Chowdhury, Rasel Mia, MD Zobayer Rahman   +4 more
wiley   +1 more source

Microscopia eletrônica de varredura de parasitos branquiais de Piaractus mesopotamicus Holmberg, 1887 cultivados no Estado de São Paulo, Brasil

Acta Scientiarum: Biological Sciences, 2008
Foram coletados 15 exemplares de Piaractus mesopotamicus (pacu), medindo em torno de 15 cm de comprimento padrão, de tanques do Centro de Aqüicultura da Unesp, Jaboticabal, SP, Brasil.
Maria Luiza Rodrigues de Souza, Maurício Laterça Martins, Jaime Maia dos Santos   +2 more
doaj   +1 more source

Scientific history, biogeography, and biological traits predict presence of cryptic or overlooked species

Biological Reviews, Volume 99, Issue 2, Page 546-561, April 2024.
ABSTRACT Genetic data show that many nominal species are composed of more than one biological species, and thus contain cryptic species in the broad sense (including overlooked species). When ignored, cryptic species generate confusion which, beyond biodiversity or vulnerability underestimation, blurs our understanding of ecological and evolutionary ...
Abigail E. Cahill, Emese Meglécz, Anne Chenuil   +2 more
wiley   +1 more source

Transmission Biology of the Myxozoa

, 2012
Myxozoans are spore-forming parasites of both freshwater and marine fishes (Lom & Dykova, 1992, Kent et al., 2001; Feist & Longshaw, 2006). The Myxozoa were previously classified as protozoans, although the multicellular state and functional specialization of the cells composing spores were considered to exceed protozoan level (Lom & Dykova, 1992 ...
Hiroshi Yokoyama, Daniel Grabner, Sho Shirakashi   +2 more
openaire   +2 more sources

Re‐evaluation of certain aspects of the EFSA Scientific Opinion of April 2010 on risk assessment of parasites in fishery products, based on new scientific data. Part 1: ToRs1–3

EFSA Journal, Volume 22, Issue 4, April 2024.
Abstract Surveillance data published since 2010, although limited, showed that there is no evidence of zoonotic parasite infection in market quality Atlantic salmon, marine rainbow trout, gilthead seabream, turbot, meagre, Atlantic halibut, common carp and European catfish.
EFSA Panel on Biological Hazards (BIOHAZ), Konstantinos Koutsoumanis, Ana Allende, Avelino Alvarez‐Ordóñez, Sara Bover‐Cid, Marianne Chemaly, Alessandra De Cesare, Lieve Herman, Friederike Hilbert, Roland Lindqvist, Maarten Nauta, Romolo Nonno, Luisa Peixe, Giuseppe Ru, Marion Simmons, Panagiotis Skandamis, Elisabetta Suffredini, Kurt Buchmann, Mercedes Careche, Arne Levsen, Simonetta Mattiucci, Ivona Mladineo, Maria João Santos, Rubén Barcia‐Cruz, Alesandro Broglia, Kateryna Chuzhakina, Sonagnon Martin Goudjihounde, Beatriz Guerra, Winy Messens, Irene Muñoz Guajardo, Declan Bolton   +30 more
wiley   +1 more source