Results 11 to 20 of about 266 (125)

Parasitic Infections of Freshwater Fish in Kenya: Prevalence Patterns, Ecological Drivers, and Implications for Aquaculture Sustainability [PDF]

open access: yesJournal of Parasitology Research, Volume 2026, Issue 1, 2026.
Fish parasitic infections present a growing threat to freshwater aquaculture in Kenya, affecting fish health, reducing productivity, and limiting the economic potential of small‐scale and commercial farms. This review provides the first consolidated national checklist of freshwater fish parasites in Kenya, synthesizing evidence from lakes, rivers, and ...
Robert M. Waruiru   +13 more
wiley   +2 more sources

Peritrichs (Ciliophora, Peritrichia) in the Danube: Keystone Organisms in the Formation of Diverse Protist Biofilms [PDF]

open access: yesEnvironmental Microbiology Reports, Volume 17, Issue 5, October 2025.
Colonial peritrichs act as physical ecosystem engineers in middle Danube biofilms, generating three‐dimensional structures during 1–28 days of colonisation. Their surfaces host filter feeder epibionts (choanoflagellates, other peritrichs, rotifers), expanding filtration capacity and promoting functional group establishment including swimming and ...
Álmos Becz, Júlia Katalin Török
wiley   +2 more sources

From Mud to Meat: Comparative Metabarcoding Reveals Two Different Evolutionary Paths to Carnivory in a Group of Meiofaunal Annelids [PDF]

open access: yesMolecular Ecology, Volume 34, Issue 22, November 2025.
ABSTRACT Evolutionary transitions to carnivory represent profound shifts in feeding mode that are often accompanied by widespread changes in organismal function, behaviour and ecology. Such transitions have evolved numerous times among animals, and predator–prey interactions have been major drivers of animal evolution.
Joseph M. Mack, Alexandra E. Bely
wiley   +2 more sources

Medicinal and Aromatic Plant Oils in Aquafeeds: Mechanistic Perspectives on Growth Promotion, Immunomodulation, and Stress Resilience [PDF]

open access: yesAquaculture Nutrition, Volume 2026, Issue 1, 2026.
The aquaculture industry is increasingly transitioning toward sustainable aquafeeds, driven by the economic and environmental necessity to replace marine‐derived fishmeal and fish oil with plant‐ and insect‐based alternatives. This nutritional shift introduces physiological challenges, accelerating the search for natural, sustainable functional ...
Mustafa Öz   +3 more
wiley   +2 more sources

Morphological and molecular identification of epibiontic sessilid Epistylis semiciculus n. sp. (ciliophora, Peritrichia) from Procambarus clarkia (Crustacea, Decapoda) in China [PDF]

open access: yesInternational Journal for Parasitology: Parasites and Wildlife, 2019
Data on sessilinasis from Procambarus clarkia are limited. This study investigates sessilid diversity in Hubei Province, China in 2016. Procambarus clarkia pereopods were covered by two sessilid morphotypes in April and May, and the gills were adhered by
Tong Zhou, Zhe Wang, Hao Yang, Zemao Gu
doaj   +2 more sources

New record of Epistylis hentscheli (Ciliophora, Peritrichia) as an epibiont of Procambarus (Austrocambarus) sp. (Crustacea, Decapoda) in Chiapas, Mexico [PDF]

open access: yesZooKeys, 2018
Epibiosis is very common between crustaceans and ciliates where the calcified surface of the crustacean body provides a suitable substrate for ciliate colonization.
Mireya Ramírez-Ballesteros   +2 more
doaj   +4 more sources

A Reassessment of Phylogenetic Relationships in Class Oligohymenophorea (Protista, Ciliophora) Based on Updated Multigene Data [PDF]

open access: yesEcology and Evolution, Volume 15, Issue 2, February 2025.
We report 97 new sequences, including SSU‐rRNA, ITS1‐5.8S‐ITS2 rRNA, LSU‐rRNA, mitochondrial cytochrome oxidase c subunit I, and mitochondrial small subunit ribosomal RNA genes of 30 oligohymenophorean populations. A comprehensive analysis of class Oligohymenophorea is conducted, encompassing 250 populations.
Bailin Li   +7 more
wiley   +2 more sources

Retention of microplastics by biofilms and their ingestion by protists in rivers [PDF]

open access: yesEnvironmental Microbiology Reports, Volume 16, Issue 5, October 2024.
Biofilms, which are ubiquitous in aquatic ecosystems such as rivers, may play an essential role in the fate of microplastics (MPs) and their ingestion by biofilm protists. A combination of field and laboratory experiments shows that riverine biofilms contain up to 10 times more MPs than ambient water and retain 6–12 times more MPs than surfaces without
Leandra Hamann   +8 more
wiley   +2 more sources

Influence of Buffer‐Protected Sodium Butyrate Supplementation in the Diet of Penaeus vannamei [PDF]

open access: yesAquaculture Nutrition, Volume 2025, Issue 1, 2025.
This study aimed to determine the optimal inclusion level of protected sodium butyrate (PSB) in diets for Penaeus vannamei during the postlarvae to grow‐out phase. A completely randomized design was used with four dietary treatments: 0, 2, 4, and 8 kg/t of PSB (54% sodium butyrate). The PSB product (Novation SL 2002, Spain) contains 54% sodium butyrate
Maria Érica da Silva Oliveira   +13 more
wiley   +2 more sources

CARD‐FISH and prey tracer techniques reveal the role of overlooked flagellate groups as major bacterivores in freshwater hypertrophic shallow lakes

open access: yesEnvironmental Microbiology, Volume 24, Issue 9, Page 4256-4273, September 2022., 2022
Summary Heterotrophic nanoflagellates (HNF) and ciliates are major protistan planktonic bacterivores. The term HNF, however, describes a functional guild only and, in contrast to the morphologically distinguishable ciliates, does not reflect the phylogenetic diversity of flagellates in aquatic ecosystems.
Karel Šimek   +6 more
wiley   +1 more source

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