Hydrobiological Research

Infection and treatment of Vibrio aestuarianus rainbow trout (Oncorhynchus mykiss) fry in Kahramanmaraş

2025-04-22T11:25:22+03:00

An infection with a high mortality rate was observed in fry weighing between 5-25 g in 10 different rainbow trout (Oncorhynchus mykiss Walbaum, 1792) farms in the Kahramanmaraş province. Liver, spleen, kidney, intestinal, and skin tissue samples were obtained from fish exhibiting symptoms of the disease and subsequently cultured on both general and special media. These samples were then incubated in an incubator at temperatures ranging from 15 to 24°C for a period of 24 to 72 hours. Subsequent biochemical identification tests were performed on pure strains obtained from these samples taken from trout farms, as well as 94 biochemical tests for the identification of Gram-negative and Gram-positive bacteria at the species level on The Biolog GEN III MicroPlate plates. The identification process yielded the detection of 10 strains of Vibrio aestuarianus, and subsequent antibiogram analysis was conducted.

A comprehensive study on the diatom flora of Anasagar Lake, Ajmer, Rajasthan

2025-06-22T23:34:16+03:00

Freshwater diatoms of Anasagar Lake, Ajmer was investigated between July 2023 to June 2024. Samples were collected on the interval of for months and variation in flora was analyzed seasonally, including monsoon, post-monsoon, winter, and summer seasons. The range of Shannon diversity indices was found between 1.60 and 3.84, the species evenness between 0.37 and 0.66, and the Simpson’s diversity index between 0.022 and 0.22. The diversity indices indicated that there is light to moderate level of pollution in the studied sites, with moderate diversity level. This study suggested that the post-monsoon was more favorable for diatom growth, possibly due to nutrient availability. Sixty-two species of diatom were identified. Twenty-seven genera and sixty-two species represented these species.

Life Near Water: The Importance of Riparian Woody Plants

2025-06-12T14:29:31+03:00

Woody plants growing along streambanks play a critical role in maintaining ecosystem health and biodiversity. This article focuses on the ecological functions, environmental contributions, and conservation importance of woody plants found near water bodies and within streambeds. Additionally, recommendations are provided for the conservation of riparian zones based on case studies from Turkey and findings from international literature. In this study, five active streambeds located in rural areas of Bingöl Province were examined over a 12-month period to identify plant species. The elevation of these streambeds ranged from 1087 to 1813 meters. While Salix species were found in all of the streambeds, the presence of other species varied. The identified taxa included: Alnus sp., Crataegus sp., Pyrus sp., Prunus sp., Cerasus sp., Malus sp., Tamarix sp., Morus sp., Rosa sp., Rubus sp., and Platanus sp.

A Systematic and Bibliometric Review of Garra rufa (Doctor Fish): Therapeutic Use, Research Landscape, and Knowledge Gaps (1993–2025)

2025-07-18T12:10:45+03:00

This study presents a systematic and bibliometric analysis of Garra rufa (doctor fish) literature from 1993 to 2025, integrating PRISMA-guided review and science mapping via Bibliometrix. Covering 46 peer-reviewed publications, the findings reveal multidisciplinary interest in ecology, ichthyotherapy, aquaculture, and conservation. Key trends include increasing attention to zoonotic risks, biodiversity, and climate resilience. Despite biomedical promise, genetic and biosafety research remains limited. Türkiye and Iran dominate scholarly output, though international collaboration is sparse. This review provides a foundational reference for future research on G. rufa's therapeutic applications, environmental challenges, and sustainable use.