Results 61 to 70 of about 1,508 (193)

Remobilisation of fine sediment from chalk stream gravel beds under flushing flows: A flume experiment

Earth Surface Processes and Landforms, Volume 51, Issue 3, March 2026.
Through progressive flume experiments, this study demonstrated that increased bed shear stresses corresponded with increased cohesive fine sediment (<62‐μm) remobilisation depths from a representative chalk stream gravel bed. This represents some of the first scientifically robust data, which can direct revised and targeted fine sediment management in ...
Beth Mondon, David A. Sear, Hachem Kassem, Adrian L. Collins, Peter J. Shaw, Tim Sykes   +5 more
wiley   +1 more source

Crayfish distribution updating in central Italy [PDF]

Knowledge and Management of Aquatic Ecosystems, 2009
Introductions of non-indigenous crayfish have received great attention from biologists and policy makers during the last decade. Purposes of this study are to update the knowledge about the crayfish distribution in Latium (central Italy), and to show how
M. Scalici, M. Pitzalis, G. Gibertini
doaj  

Stress Nutrition in Aquatic Animals: From Definition to Practice

Reviews in Aquaculture, Volume 18, Issue 1, January 2026.
ABSTRACT Aquaculture faces numerous challenges, with stress being one of the major issues that lead to growth loss, metabolic disorders, weakened immunity, redox imbalance, and organ damage in aquatic animals. Nutritional intervention is one of the effective strategies to address these problems. Traditional research has primarily focused on the impacts
Jian Zhang, Qianwen Ding, Ruobing Lou, Yuanpei Zhang, Yuanyuan Yao, Yalin Yang, Zhen Zhang, Chao Ran, Zhigang Zhou   +8 more
wiley   +1 more source

Fine-tuning of a COI PCR-RFLP assay for fast genetic characterization of Spanish white-clawed crayfish

Knowledge and Management of Aquatic Ecosystems, 2016
The white-clawed crayfish is endemic to western and southern Europe and its population has dramatically decreased in the last few decades.
Matallanas B., Ochando M. D., Callejas C.   +2 more
doaj   +1 more source

Optimal Dietary Dunaliella salina Supplementation Enhances Growth, Antioxidant Capacity, Immune Response, Stress Tolerance, and Carotenoid‐Based Pigmentation in Juvenile Red Swamp Crayfish (Procambarus clarkii)

Aquaculture Nutrition, Volume 2026, Issue 1, 2026.
To meet the growing market demand for high‐quality red swamp crayfish (Procambarus clarkii), nutritional strategies are needed to improve both health and visual traits. The microalga Dunaliella salina, renowned for its rich natural β‐carotene content, presents a promising solution.
Chen Qian, Jinghao Li, Yawen Zhang, Yongxu Cheng, Jiayao Li, J. C. Chen   +5 more
wiley   +1 more source

Metabolic Responses to Cyclic Fasting in Juvenile Turbot (Scophthalmus maximus)

Aquaculture Nutrition, Volume 2026, Issue 1, 2026.
Feed accounts for the majority of aquaculture production costs, making strategies that reduce feed input without compromising growth economically attractive. This 72‐day study evaluated the effects of cyclic fasting regimens on growth, body composition, and liver transcriptome in juvenile turbot (initial body weight 5.54 g).
Haiyan Xiong, Zhengwei Ye, Chenchen Bian, Yanjiao Zhang, Jiahao Liu, Qiang Ma, Yuliang Wei, Mengqing Liang, Houguo Xu, Noah Esmaeili   +9 more
wiley   +1 more source

Recent changes in distribution pattern of freshwater crayfish in Croatia − threats and perspectives

Knowledge and Management of Aquatic Ecosystems, 2018
Analysis of Croatian freshwater crayfish populations, aiming to gather new distributional data and complement previous surveys (2005–2011), was performed during 2014–2016, within the frame of Natura 2000 Integration Project.
Maguire Ivana, Klobučar Göran, Žganec Krešimir, Jelić Mišel, Lucić Andreja, Hudina Sandra   +5 more
doaj   +1 more source

The ‘Pritchard Trap’: A novel quantitative survey method for crayfish

Ecological Solutions and Evidence, 2021
As crayfish invasions continue to threaten native freshwater biota, a detailed understanding of crayfish distribution and population structure becomes imperative. Nonetheless, most current survey methods provide inadequate demographic data.
Eleri G. Pritchard, Daniel D. A. Chadwick, Ian R. Patmore, Michael A. Chadwick, Paul Bradley, Carl D. Sayer, Jan C. Axmacher   +6 more
doaj   +1 more source

Drivers Behind Spatiotemporal Variation in Environmental DNA: An Assessment Using a Rare Aquatic Salamander, the Eastern Hellbender (Cryptobranchus alleganiensis alleganiensis)

Environmental DNA, Volume 7, Issue 6, November–December 2025.
We examined the seasonal and fine‐scale spatial variability of eDNA in situ for a rare aquatic salamander, the Eastern Hellbender (Cryptobranchus alleganiensis alleganiensis), and identified physical and hydrological stream characteristics that impact both eDNA concentration estimates and detection rates.
Sarah A. Tomke, Steven J. Price
wiley   +1 more source

Spatial patterns of habitat use by white clawed crayfish (Austropotamobius pallipes) on the River Wansbeck [PDF]

, 2011
The white clawed crayfish (Austropotamobius pallipes) is a freshwater crustacean at imminent risk of extinction, largely due to the introduction of American signal crayfish (Pacifastacus leniusculus) to Britain.
PEARSON, CAITLIN,ELIZABETH
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