Results 111 to 120 of about 41,462 (237)

Fish Assemblages Associated With Multiscale Environmental Variables in Agriculturally Impacted Streams

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 3, March 2026.
ABSTRACT Agricultural development is a global wide‐spread alteration to natural landscapes that can impact stream fish assemblages at multiple scales. Knowing how environmental variables affect stream fish diversity and abundance is important for the conservation and management of stream fish assemblages.
Eli J. Lagacy, Michael J. Weber
wiley   +1 more source

Modeling Trophic Structure and Ecosystem Functioning of the Small Fish‐Dominated Largest Lake of Bangladesh

Ecology and Evolution, Volume 16, Issue 3, -Not available-.
Kaptai Lake is a developing ecosystem with a linear food web and thereby vulnerable to external influences. The apex predator, Catfish (TL‐3.364), occupied the top trophic niches, while the overabundant (B: 3.264 t/km2) Clupeid (TL‐2.56) dominated the lower trophic level in the food web. The higher values of ecotrophic efficiency for most of the groups
Debashis Kumar Mondal, Chengjie Yin, Kangshun Zhao, Muhammad Farooq, Md. Abdul Halim, Ruilong Wang, Jun Xu   +6 more
wiley   +1 more source

Comparison of Environmental DNA Metabarcoding and Trawl Data Highlights Gear Selectivity of Marine Demersal Fish Surveys on the Faroese Plateau

Environmental DNA, Volume 8, Issue 2, March/April 2026.
The study compared trawl and eDNA metabarcoding of demersal fish communities in an open ocean environment around the Faroe Islands. eDNA provided a comparable assessment of demersal species biomass and revealed additional spatial information on keystone species known to be under‐sampled by demersal trawls due to size and behavioral traits.
I. Salter, M. Brandner, A. Djurhuus, K. Præbel, O. Wangensteen   +4 more
wiley   +1 more source

Environmental Enrichment in Aquaculture: Linking Welfare Goals to Practical Applications

Reviews in Aquaculture, Volume 18, Issue 2, March 2026.
ABSTRACT Aquaculture is the fastest growing food production sector globally, comprising freshwater and marine species reared under highly variable farming contexts, ranging from extensive earthen ponds to intensive recirculating and sea‐based systems. Together with growth, production has also intensified, and the welfare of fish farmed in these systems
Olivia Spiliopoulos, Sunil Kadri, Michelle Sinclair, Myriam Vanderzwalmen, Culum Brown   +4 more
wiley   +1 more source

Ocular Morphology and Clinical Ophthalmic Parameters of Nile Tilapia Oreochromis niloticus

Veterinary Ophthalmology, Volume 29, Issue 2, March 2026.
ABSTRACT Objective To describe the ocular morphological characteristics and establish clinical and ophthalmic reference standards for Nile tilapia. Animals Studied Fresh carcasses were used for diaphanization, optical and electron microscopy, and computed tomography analyses.
Dandara Franco Ferreira da Silva, Lucélia Gonçalves Vieira, Pedro Vale de Azevedo Brito, Sonia Nair Báo, Ingrid Gracielle Martins da Silva, Rodrigo Diana Navarro, Clarissa Machado de Carvalho, Paula Diniz Galera, Daniel Henrique Viana da Silva, Weslley de Souza Barbosa, Rosélia de Lima Sousa Araújo, Giane Regina Paludo, Liria Queiroz Luz Hirano   +12 more
wiley   +1 more source

Recent trends in the Illinois River indicated by fish populations: Havana, Ill., [PDF]

, 1993
INHS Technical Report submitted as part of the Flowing Water Ecosystems Section in the Critical Trends Assessment ...
Lerczak, Thomas V., Sparks, Richard E.
core  

Effects of sex, family, and size grading on feed conversion ratio, growth, visceral fat, and weight loss in Delta Select channel catfish

Journal of the World Aquaculture Society
Feed conversion efficiency (FCE) is an important determinant of profitability in catfish production. Understanding factors affecting FCE at a physiological level could lead to improvement of FCE at production scale.
Brian Bosworth, Fernando Y. Yamamoto, Dakoda Chisolm, Michael J. Patterson, Brian D. Ott   +4 more
doaj   +1 more source

Mass Balance Studies of Robenidine Hydrochloride in the Body of Channel Catfish (Ictalurus punctatus). [PDF]

Animals (Basel), 2023
Zhang L, Du X, Ai X, Liu Y.
europepmc   +1 more source

Dietary betulinic acid alleviates high carbohydrate diet-induced hepatic de novo lipogenesis through AMPK signaling and improves liver health in channel catfish (Ictalurus punctatus)

Aquaculture Reports
A high carbohydrate diet (HCD) induced excessive hepatic de novo lipogenesis, which caused metabolic disorder and impaired the health of fish species. Betulinic acid (BA) has been applied to ameliorate fatty liver and anti-inflammatory in mammals.
Yulong Liu, Qisheng Lu, Guoli Han, Yutong Zheng, Jingyue Cao, Longwei Xi, Haokun Liu, Junyan Jin, Zhimin Zhang, Yunxia Yang, Xiaoming Zhu, Dong Han, Shouqi Xie   +12 more
doaj   +1 more source

Effects of Temperature and Crowding on the Pathogenicity of Edwardsiella ictaluri in Channel Catfish (Ictalurus punctatus) [PDF]

, 1985
Channel catfish were injected with Edwardsiella ictaluri and stocked at increasing temperatures and densities. Bacteriological examination of kidney, liver and spleen revealed the greatest numbers of organisms in fish from the highest temperature and ...
Hinck, Lawrence W., Johnson, Sharon L.
core   +2 more sources