Results 41 to 50 of about 286 (165)

Preliminary survey on parasite fauna of pumpkinseed sunfish, Lepomis gibbosus (Linnaeus, 1758) (Pisces, Teleostei, Centrarchidae) from warm-water discharge canal of the "Pomorzany" power plant in Szczecin, Poland [PDF]

Acta Ichthyologica et Piscatoria, 1994
A total of 103 pumpkinseed sunfish L. gibbosus was surveyed for parasites. Fourteen parasite species representing six higher taxa were recovered. Of the fish examined, 72.8 % were found to harbour parasites. The most prevalent were glochidia of Unio sp. (
W. Piasecki, M. Falandysz
doaj   +3 more sources

Ergasilus urupaensis sp. n. (COPEPODA: ERGASILIDAE) das brânquias de Prochilodus nigricans AGASSIZ, 1829 (CHARACIFORMES: PROCHILODONTIDAE) da Amazônia Brasileira [PDF]

Acta Amazonica, 1993
Ergasilus urupaensissp. n. (Copepoda, Poecilostomatoida, Ergasilidae) é proposta. Os espécimens foram coletados dos filamentos branquiais de Prochilodus nigricansAgassiz, 1829 do Rio Urupá (afluente do rio Jiparaná), Estado de Rondônia, Brasil.
Jose Celso O. MALTA
doaj   +1 more source

Ergasilus yumaricussp. n. (COPEPODA: ERGASILIDAE) DAS BRÂNQUIAS DE Pygocentrus nattereri (KNER, 1860), Serrasalmus rhombeus (LINNAEUS, 1819) E Pristobrycon eigenmanni (NORMAN, 1929) (CHARACIFORMES : SERRASALMIDAE) DA AMAZÔNIA BRASILEIRA [PDF]

Acta Amazonica, 1995
Ergasilus yumaricussp. n. (Copepoda, Poecilostomatoida, Ergasilidae) é proposta. Os espécimens foram coletados dos filamentos branquiais de Pygocentrus nattereri, Serrasalmus rhombeuse Pristobrycon eigenmannido Rio Guaporé próximo à Pimenteiras, rios ...
José Celso O. MALTA, Angela Μ. VARELLA
doaj   +1 more source

First record of an epibiont protozoan Epistylis sp. (Ciliophora, Peritrichia) attached to Ergasilus chelangulatus (Ergasilidae) in Brazil

Brazilian Journal of Biology
In the present paper, we described the first record of an epibiont protozoan Epistylis sp. Ehrenberg, 1830 (Ciliophora, Peritrichia) attached to Ergasilus chelangulatus Thatcher and Brasil-Sato, 2008, parasite of Pimelodus maculatus Lacépède, 1803 in ...
RK. Azevedo, H. Brandão, VD. Abdallah, RJ. Silva   +3 more
doaj   +1 more source

Communities of parasite metazoans in Piaractus brachypomus (Pisces, Serrasalmidae) in the lower Amazon River (Brazil)

Revista Brasileira de Parasitologia Veterinária, 2016
The aim of this study was to investigate the component community of parasite metazoans of Piaractus brachypomus in the lower Amazon River, northern Brazil.
Marcos Sidney Brito Oliveira, Marcos Tavares-Dias   +1 more
doaj   +1 more source

Zooplankton Community Composition in the White and Blue Niles Near Khartoum: Combining Molecular and Morphological Approaches

Environmental DNA, Volume 7, Issue 6, November–December 2025.
Environmental DNA (eDNA) metabarcoding of bulk zooplankton from the White and Blue Nile near Khartoum recovered 40 genus/species‐level taxa belonging to Cladocera, Copepoda, and Rotifera, representing 53%–72% of ASVs. Rotifers were the most diverse group, and low Cladocera read counts likely reflect primer mismatch despite similar morphological ...
Samah Elhussein Mohammedahmed Makawi, Michael T. Monaghan   +1 more
wiley   +1 more source

Antagonistic Rewiring and Turnover Patterns in a Neotropical Fish–Parasite Metanetwork

Freshwater Biology, Volume 70, Issue 7, July 2025.
ABSTRACT Integrating beta‐diversity and network analyses is an emerging approach for understanding the spatial structure of species communities. For instance, although the presence of hosts affects parasite species distribution, environmental factors can either restrict or promote the occurrence of certain parasite species by changing the abundance of ...
Ana Paula Lula Costa, Paulo R. Guimarães, Andre A. Padial   +2 more
wiley   +1 more source

A Long Temporal Study of Parasitism in Asexual‐Sexual Populations of Carassius gibelio: Does the Parasite Infection Support Coevolutionary Red Queen Dynamics?

BioMed Research International, Volume 2018, Issue 1, 2018., 2018
Carassius gibelio is an extraordinary cyprinid species exhibiting both sexual and asexual reproduction. We hypothesized that parasitism selection is one of the potential mechanisms contributing to the coexistence of the two reproductive forms of C. gibelio living in the same habitat.
Tomáš Pakosta, Lukáš Vetešník, Andrea Šimková, Yann Quilichini   +3 more
wiley   +1 more source

FINE STRUCTURES OF ADULT FEMALE OF ERGASILUS SIEBOLDI (COPEPODA: POECILOSTOMATOIDEA) FROM EGYPTIAN FRESHWATER FISH (BAGRUS BAYAD) [PDF]

Assiut Veterinary Medical Journal, 2005
Detailed fine structures of Ergasilus sieboldi female from Egypt was studied using both Light microscopy (LM) and Scanning electron microscopy (SEM). The results demonstrated that adult female is cyclopiform with 10 segments measuring 1.4 ± 0.05 mm in ...
NADIA M.T. ABU EL-EZZ, A.A. ZAYED, OLFAT A. MAHDY   +2 more
doaj   +1 more source

Effects of water quality on fish parasite biodiversity and physiological responses in the host fish Clarias gariepinus from a eutrophic lake subjected to acid mine drainage in South Africa

Integrated Environmental Assessment and Management, Volume 20, Issue 5, Page 1539-1553, September 2024.
Abstract Elevated concentrations of contaminants have negative impacts on aquatic organisms and their parasites. Changes in parasite infections have been proposed as a technique for monitoring the health of aquatic ecosystems. Furthermore, alterations in physiological responses (biomarkers) of organisms have also been used to delineate ecosystem ...
Lutfiyya Latief, Beric M. Gilbert, Annemariè Avenant‐Oldewage   +2 more
wiley   +1 more source