Results 71 to 80 of about 20,715 (225)

Comparative Assessment of Freshwater Biodiversity in Los Morales Reservoir (Madrid) Using eDNA Collected From Sponges and Water Filtration

open access: yesEnvironmental DNA, Volume 8, Issue 3, May–June 2026.
Filters and freshwater sponge tissue recover a comparable number of taxa through eDNA metabarcoding. Filters detect more taxa, followed by sponge tissue when host‐blocking primers are used. Each method reveals different community compositions, so combining both approaches is recommended to achieve a more realistic representation of the metazoan ...
Andrea Corral‐Lou   +8 more
wiley   +1 more source

Feasibility studies in relation to the IMO Ballast Water Convention [PDF]

open access: yes, 2009
This project is aimed to develop possibilities to overcome the difficulties which arise from the implementation of the Ballast Water Convention (IMO 2004).
Kaag, N.H.B.M.   +2 more
core   +1 more source

Assessment of Preservation and Extraction Methods for Environmental DNA in Sediments

open access: yesEnvironmental DNA, Volume 8, Issue 3, May–June 2026.
We assessed how different preservation methods (freezing, room temperature, silica gel, Longmire buffer) affect eDNA metabarcoding results for bacterial, fungal, microeukaryotic, and metazoan communities in marine and freshwater sediments. Results demonstrate taxonomic‐ and habitat‐specific responses to preservation methods, providing evidence‐based ...
Alessia Guerrieri   +6 more
wiley   +1 more source

On the phylogenetic position of Myzostomida: can 77 genes get it wrong? [PDF]

open access: yes, 2009
Background Phylogenomic analyses recently became popular to address questions about deep metazoan phylogeny. Ribosomal proteins (RP) dominate many of these analyses or are, in some cases, the only genes included.
Halanych Kenneth M   +6 more
core   +3 more sources

From Nest Box to Neighborhood: Patterns of Island Biodiversity Characterized Through eDNA From Little Blue Penguin (Eudyptula minor) Nest Boxes

open access: yesEnvironmental DNA, Volume 8, Issue 3, May–June 2026.
There are many environmental DNA (eDNA) sources within and around a seabird nest. These DNA traces from soil, plant material, feathers, feces, and other nest components enable detection of a wide range of taxa, including plants, fungi, insects, arachnids, mollusks, reptiles, and other vertebrates. Here, we used DNA from nest box feces to obtain signals
Ashleigh Stanners, Angela McGaughran
wiley   +1 more source

Helminths of the Eurasian marsh frog, Pelophylax ridibundus (Pallas, 1771) (Anura: Ranidae), from the Shiraz region, southwestern Iran

open access: yesHelminthologia, 2019
Fourty seven specimens of Pelophylax ridibundus were collected in the vicinity of Shiraz, Fars Province, Iran in 1972. Fourteen helminth species were found, eight digeneans (Diplodiscus subclavatus, Halipegus alhaussaini, Haematoloechus similis ...
León-Règagnon V.
doaj   +1 more source

Host–Parasite Interaction Networks of Helminths of Sigmodontine Rodents in Two Different Areas of the Brazilian Atlantic Forest

open access: yesEcological Research, Volume 41, Issue 3, May 2026.
Two helminth‐rodent networks were analyzed for two distinct areas. Network modularity, nestedness, and degree of specialization were calculated for each network. Higher network modularity than nestedness and high network specialization were observed in both networks, suggesting functional and/or taxonomic specialization between helminth species and ...
Thiago dos Santos Cardoso   +7 more
wiley   +1 more source

Physiological evaluation of the behavior and epidermis of freshwater planarians (Girardia tigrina and Girardia sp.) exposed to stressors

open access: yesBiology Open, 2018
Planarians are metazoan freshwater flatworms which are free-living organisms. Their body has pluripotent stem cell promoters of tissue regeneration capacity.
Matheus Salgado de Oliveira   +4 more
doaj   +1 more source

Air drying technique for cytogenetic studies in freshwater planarians (Platyhelminthes) [PDF]

open access: yes, 1997
Fil: Margaría, Cecilia Beatriz. Facultad de Ciencias Naturales y Museo; Universidad Nacional de La PlataFil: Dulout, F.N.. Ctro. Invest. Genet.
Dulout, F.N., Margaría, Cecilia Beatriz
core   +1 more source

Drivers of Microbiome Composition Among Helminth Parasites Sharing the Same Insectivorous Bat Host

open access: yesMolecular Ecology, Volume 35, Issue 10, May 2026.
ABSTRACT Parasitic metazoans are increasingly recognised to form close associations with microbial taxa. Under the holobiont concept, these associations are an eco‐evolutionary unit under joint selection. However, for most parasitic helminth species and particularly those associated with wildlife, these interactions and their effect on parasite ...
Nallely G. Ruiz‐Torres   +8 more
wiley   +1 more source

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