Results 51 to 60 of about 1,725 (183)

Ecología, cariología y anatomía de la planaria Pentacoelum hispaniense Sluys, 1989 (Platyhelmintes, Tricladida)

open access: yesGraellsia, 2008
Basándonos en las nuevas poblaciones descubiertas del tríclado Pentacoelum hispaniense aportamos nuevos datos ecológicos, reproductivos, cariológicos y anatómicos de la especie, incluyendo la primera descripción de la anatomía externa.
M. Vila-Farré   +5 more
doaj   +1 more source

New records of Lubens lubens (Braun, 1901) and Pojmanskia riosae Zamparo, Brooks & Causey, 2003 (Digenea) in Taraba major (Vieillot) (Aves: Thamnophilidae) from Argentina [PDF]

open access: yesCheck List, 2014
Pojmanskia riosae (Digenea: Leucochloridiidae) and Lubens lubens (Digenea: Dicrocoeliidae) are described from the intestine and cloaca of the Chororó or Great Antshrike, Taraba major (Passeriformes: Thamnophilidae) from Formosa Province, Argentina.
Lía Lunaschi   +2 more
doaj   +3 more sources

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

Elevated fish growth yet postponed maturation during intense marine heatwaves

open access: yesEcological Applications, Volume 35, Issue 4, June 2025.
Abstract In the last decade, the northeast Pacific Ocean has experienced new climatic extremes with the occurrence of several marine heatwaves (MHWs), prolonged periods of warmer‐than‐normal ocean temperatures, likely as a result of anthropogenic climate change.
R. Claire Rosemond   +2 more
wiley   +1 more source

Digenean species diversity in teleost fishes from the Gulf of Gabes, Tunisia (Western Mediterranean)

open access: yesParasite, 2012
This study is the first attempt to survey the diversity of fish digeneans in the Gulf of Gabes (southern coast of Tunisia). A total of 779 fishes belonging to 32 species were sampled. 53 species of Digenea belonging to 15 families were recorded.
Derbel H., Châari M., Neifar L.
doaj   +1 more source

Metabarcoding Unveils the Diversity and Dynamics of In Situ Diet and Symbionts Associated With Copepods in Chinese Coastal Waters

open access: yesDiversity and Distributions, Volume 31, Issue 6, June 2025.
ABSTRACT Aim Copepods are the key secondary producers in marine ecosystems, yet their in situ diet and symbionts remain underexplored due to technical challenges, limiting our understanding of their population dynamics and ecological functions. Using DNA metabarcoding, we jointly characterised the natural diet and symbionts of copepods across Chinese ...
Yu Zang   +9 more
wiley   +1 more source

Slow Invaders Going Fast: New Data of Exotic Slugs (Gastropoda: Eupulmonata) From Spain

open access: yesEcology and Evolution, Volume 15, Issue 5, May 2025.
Morphological and genetical confirmation of the occurrence of two non‐native terrestrial slugs in the Iberian Peninsula (northern Spain): Ambigolimax parvipenis and Boettgerilla pallens. ABSTRACT Invasive species are a major concern in the current scenario of biodiversity loss. Most studies focus on vertebrates and insects, while other groups have been
Omar Sánchez   +3 more
wiley   +1 more source

Evaluating the In Vitro Anthelmintic Activity of Zinc Oxide Nanoparticles (ZnO‐NPs) Against the Adult Stages of Fasciola hepatica

open access: yesVeterinary Medicine and Science, Volume 11, Issue 1, January 2025.
Resistance to currently deployed flukicide is a growing health problem. This study evaluated the in vitro anthelmintic activity of zinc oxide nanoparticles (ZnO‐NPs) at 0.05, 0.10 and 0.12 mg/mL against Fasciola hepatica. The fastest mortality and paralysis rates of flukes were obtained at 0.12 mg/mL of ZnO‐NPs. Furthermore, SEM results showed complete
Mahmoud Abdelhamid   +10 more
wiley   +1 more source

Modifications of Prenyl Side Chains in Natural Product Biosynthesis

open access: yesAngewandte Chemie, Volume 136, Issue 52, December 20, 2024.
This review summarizes the unique modifications of prenyl side chains involved in natural product biosynthesis, including epoxidation, dehydrogenation, oxidation of methyl groups to carboxyl groups, C−C bond cleavage and oxidative cyclization. Abstract In recent years, there has been a growing interest in understanding the enzymatic machinery ...
Huibin Wang, Yi Yang, Ikuro Abe
wiley   +1 more source

Oogenesis in the hermaphroditic Digenea (Trematoda)

open access: yesParasitology, 1964
During the present century oogenesis and maturation have been extensively studied in the Digenea. The earlier observations, however, were based on limited methods of histological and cytological techniques and were concerned principally with the general features of the germ-cells and with their chromosomes.
openaire   +1 more source

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