Results 61 to 70 of about 2,165 (248)

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

open access: yesFreshwater 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   +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?

open access: yesBioMed 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   +3 more
wiley   +1 more source

Study of infection intensity of Copepods parasites from the genus (Ergasilus) on gills of carp fishes (Cyprinus carpio L) (endoparasites), and on fish's tail region (exoparasites) for big sizes and small sizes (Fingerlings) at three seasons (summer, winte

open access: yesInternational Journal of Health Sciences, 2022
This study was conducted to determine the infection intensity of Copepods parasites from the genus (Ergasilus) on gills of carp fishes (Cyprinus carpio L.)   (endoparasites), and on fish's tail region (exoparasites).
Saad M. Arif, Hussain A. Sheriff
semanticscholar   +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

open access: yesIntegrated 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   +2 more
wiley   +1 more source

Pathology caused by introduced Neoergasilus japonicus (Copepoda: Ergasilidae) to the skin of indigenous Tilapia sparrmanii in South Africa and scanning electron microscopy study of wound‐inflicting structures

open access: yesJournal of Fish Diseases, Volume 47, Issue 1, January 2024.
Abstract Neoergasilus japonicus, a fish ectoparasite indigenous to eastern and southern Asia, has been introduced to various regions, including Europe and North and South America, where it spreads at an alarming rate. The parasite is not host‐specific. It was also collected from the Vaal‐Orange and Limpopo river systems in South Africa.
Annemariè Avenant‐Oldewage   +3 more
wiley   +1 more source

Some parasitic Copepoda from Sri Lanka (Ceylon) with a synopsis of parasitic Crustacea from Ceylonese freshwater fishes [PDF]

open access: yes, 1973
This report comprises a summary of parasitic copepods from fishes in Ceylon, as isolated from the branchial material of fishes belonging to previous collections.
Fernando, C.H., Hanek, G.
core  

Mesozooplankton and Ichthyoplankton composition in two tropical estuaries of Bahia, Brazil [PDF]

open access: yesCheck List, 2010
The objective of this study was to describe the composition of two mesozooplankton and ichthyoplanktonestuarine communities in Jandaíra, Bahia (Tabatinga River), impacted by a shrimp farm; and in Conde, Bahia (ItapicuruRiver), a pristine estuary. Samples
Marcolin, C. R.   +4 more
doaj   +4 more sources

Parasites of native Cichlidae populations and invasive Oreochromis niloticus (Linnaeus, 1758) in tributary of Amazonas River (Brazil). [PDF]

open access: yes, 2019
This study provides the first investigation on acquisition of parasites in invasive O. niloticus by parasite species of native Cichlidae from the Igarapé Fortaleza basin, Northern Brazil. There were examined 576 specimens of 16 species of native cichlids
BITTENCOURT, L. S.   +4 more
core   +1 more source

Structure of the parasite infracommunity of Sciades proops from the Japaratuba River Estuary, Sergipe, Brazil

open access: yesBrazilian Journal of Biology
The catfish species Sciades proops inhabits muddy estuaries and shallow brackish lagoons, as well as freshwater. For these reasons, it is believed that this species may act as an intermediate, definitive and paratenic host in the life cycle of many ...
R. P. S. Carvallho   +4 more
doaj   +1 more source

Эколого-фаунистический анализ паразитов рыб Белгородского и Старооскольского водохранилищ [PDF]

open access: yes, 2017
Сравнительный анализ фауны паразитов рыб, оценка ее биологического разнообразия в Белгородском и Старооскольском водохранилищах, выявление эпизоотически значимых ...
Головин, П. П.   +2 more
core   +1 more source

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