Results 51 to 60 of about 751 (125)

Under Pressure: Macroinvertebrate Community Responses to Agriculture in Temporary Streams

Freshwater Biology, Volume 70, Issue 5, May 2025.
ABSTRACT Temporary streams dominate global river networks and thus often occur in catchments dominated by agricultural land uses. Drying and agriculture can exert similar stressors on aquatic communities, for example, by decreasing dissolved oxygen concentrations and increasing fine sediment deposition.
Kieran J. Gething, Romain Sarremejane, Andy House, Judy England, Tim Sykes, Rachel Stubbington   +5 more
wiley   +1 more source

Primer registro de la sanguijuela introducida Barbronia weberi (Annelida: Clitellata) en Nuevo León, México

Revista Mexicana de Biodiversidad, 2016
Se documenta la presencia de la sanguijuela introducida Barbronia weberi en el río San Juan, Monterrey, Nuevo León, México, que corresponde al segundo registro de esta especie de agua dulce en el país.
Uriel Garduño-Montes de Oca, Gisela Martínez-Flores, Samantha Contreras-Mirón, Jossué Jiménez-Armenta, Alejandro Oceguera-Figueroa   +4 more
doaj   +1 more source

Seasonal Evaluation of Ephemeroptera (Insecta) Fauna of Eastern Mediterranean Basin and Determination of Water Quality With Physicochemical Parameters and Benthic Metrics

Ecohydrology, Volume 18, Issue 3, April‐May 2025.
ABSTRACT This study evaluates the Ephemeroptera fauna and water quality in the Eastern Mediterranean Basin using physicochemical variables and benthic metrics, offering an ecological water quality analysis. Fieldwork conducted during the spring, summer and autumn of 2019 across 20 localities revealed 965 individuals belonging to 17 species from seven ...
Selda Öztürk, Erdoğan Çiçek, Mehmet Güvenç Negiz   +2 more
wiley   +1 more source

Approaches to Pollution in Lake Ecosystems, the Library of Life: An Example From Uzungöl (Trabzon, Türkiye)

Ecohydrology, Volume 18, Issue 2, March 2025.
ABSTRACT Lakes are vital ecosystems serving as reservoirs of biodiversity and are key indicators of environmental changes. This study examined the macroinvertebrate community structure and environmental parameters of Lake Uzungöl, a Special Environmental Protection Area in Türkiye, over a 10‐year period (2012–2022).
Deniz Mercan
wiley   +1 more source

Registros de sanguijuelas de Costa Rica y clave para la identificación de las especies con redescripción de Cylicobdella costaricae Records of leeches from Costa Rica and taxonomic key for species identification with a redescription of Cylicobdella costaricae

Revista Mexicana de Biodiversidad, 2012
En contraste con los enormes esfuerzos realizados por caracterizar la fauna y flora de Costa Rica, con excepción de algunos registros aislados, muy poco se sabe sobre las sanguijuelas (Annelida: Clitellata) en este país.
Alejandro Oceguera-Figueroa, Bernald Pacheco-Chaves   +1 more
doaj  

The marine leech Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), parasitic on the angel shark Squatina spp. and sandtiger shark Carcharias taurus Rafinesque, 1810 (Chondrichthyes: Squatinidae, Carchariidae) in Southern Brazilian waters

Brazilian Journal of Biology
The presence of the marine leech, Stibarobdella loricata (Harding, 1924) (Hirudinea, Piscicolidae), is reported on the southern coast of Brazil, based on seven lots with 47 specimens, between 71 and 182 mm in total length, collected on the dorsal region ...
J. M. R. Soto
doaj   +1 more source

A checklist of the protozoan and metazoan parasites of ruff (Gymnocephalus cernuus) [PDF]

Журнал Сибирского федерального университета: Серия Биология, 2010
The present paper summarizes data on parasites of ruff from all its area, based on published reviewed journals, scientific reports, conference contributions, PhD theses.
Alexander E. Zhokhov
doaj  

Leech Infestation Presenting as Severe Rectal Bleeding

Journal of Digestive Endoscopy, 2017
Leech or Hirudinea is a major parasite in rural India. Normally, the leech attacks the skin and exposed areas. An 18‑year‑old child presented with bleeding per rectum for 1 day along with giddiness.
Jimmy Narayan, Preetam Nath, Ayaskanta Singh, Pradeep Kumar Padhi, Prasanta Kumar Parida, Girish Kumar Pati, Shivaram Prasad Singh   +6 more
doaj   +1 more source

Ectoparasites as numerical dominant species in parasite community of Trachelyopterus striatulus (Siluriformes: Auchenipteridae) from Guandu River, southeastern Brazil Ectoparasitos como espécies numericamente dominantes na comunidade parasitária de Trachelyopterus striatulus (Siluriformes: Auchenipteridae) do rio Guandu, Sudeste do Brasil

Brazilian Journal of Biology, 2011
Sixty specimens of singing catfish Trachelyopterus striatulus (Steindachner, 1877) (Siluriformes: Auchenipteridae) collected from Guandu River (22º 48' 32" S and 43º 37' 35" W), in the state of Rio de Janeiro, Brazil from October 2006 to March 2009, were
RLB. Mesquita, RK. Azevedo, VD. Abdallah, JL. Luque   +3 more
doaj   +1 more source

Çubuk Çayında Ankara Bentik Makro Omurgasızların Yapısı

Journal of Agricultural Sciences, 2001
Bu çal ışmada Çubuk Çayı 'ndaki Ankara organik kirlenmeye ba ğ l ı olarak bentik makro omurgas ı zlar ı n organizma çeşitliliği ve bolluk durumu incelenmi ştir. Araşt ı rmada Tubificidae Annelidae , Chironomidae Diptera , Erpobdellidae Hirudinea ,
Hijran Yavuzcan Yıldız
doaj   +1 more source