Results 41 to 50 of about 502 (147)

The Early Development of the Blue‐Eye Cichlid, Cryptoheros spilurus (Cichliformes: Cichlidae)

Evolution &Development, Volume 27, Issue 4, December 2025.
We document the early development of Cryptoheros spilurus, highlighting rapid cranial differentiation, sensory organ formation, and fin development. Ontogenetic allometry and ultrastructural traits reveal functional adaptations for early foraging and locomotion, offering insights into ecological success and the developmental basis of cichlid ...
Rubén Alonso Contreras‐Tapia, Jairo Arroyave, Gabriela Garza‐Mouriño, María Elena Castellanos‐Páez, Marcela Ivonne Benítez‐Díaz Mirón, Wilfredo A. Matamoros   +5 more
wiley   +1 more source

Individual identification of bony fishes using unique body markings: Implications and applications

Journal of Fish Biology, Volume 107, Issue 6, Page 1852-1867, December 2025.
Abstract The natural variation in animal body markings, such as spots, stripes and blotches, offers a powerful tool for researchers, conservationists, citizen scientists and resource managers to distinguish specific individuals within species. By building libraries of photo‐identified individuals, we can track and differentiate individuals over time ...
Katie Dunkley, Samuel R. Matchette, Cheuk Yu Hau, Christian Drerup, Roxanne B. Holmes, Yvonne Sadovy de Mitcheson, James E. Herbert‐Read   +6 more
wiley   +1 more source

Bdh1l Gene Expression Is a Potential Molecular Factor in the Evolution of Carotenoid‐Based Colour Diversity of Cichlid Fishes

Molecular Ecology, Volume 34, Issue 18, September 2025.
ABSTRACT Carotenoids contribute substantially to animal body colour pattern diversity. While the ecological and evolutionary drivers of carotenoid coloration are reasonably well understood, the molecular mechanisms facilitating evolutionary transitions between red and yellow hues are less investigated.
Pooja Singh, Angelika Ziegelbecker, Christoph Hahn, Walter Goessler, Ronald A. Glabonjat, Ehsan Pashay Ahi, Kristina M. Sefc   +6 more
wiley   +1 more source

Image‐Based Individual Fish Identification as a Substitute for Invasive Methods: State‐of‐the‐Art and Research Gaps

Reviews in Aquaculture, Volume 17, Issue 4, September 2025.
ABSTRACT Individual identification of fish within the same species is one of the most crucial and frequently performed tasks in aquaculture research, and it is also widely used in aquaculture production. Fish sampling, treating, welfare, and disease state estimation are increasingly turning from group‐based to individualized.
Mohammad Mehdi Ziaei, Jan Urban, Petr Cisar   +2 more
wiley   +1 more source

Transcriptome Analysis of Natural Albino Northern Snakehead (Channa argus var.) Provides Novel Insights into Color-Related Genes

Fishes
The northern snakehead (Channa argus) is an important economic fish species that holds a significant position in Chinese aquaculture due to its high nutritional value, fast growth, and anti-hypoxia capacity. There is a natural albino-mutant (AM) C. argus
Yunbang Zhang, Qunxiang Ruan, Yiping Liu, Xin Wei, Ling Wang, Yunfei Chen, Jian Gao, Yuanchao Zou, Xiaojuan Cao   +8 more
doaj   +1 more source

Expression patterns of melanin‐related genes are linked to crypsis and conspicuousness in a pumpkin toadlet

Molecular Ecology, Volume 34, Issue 15, August 2025.
Abstract Colour signals play pivotal roles in different communication systems, and the evolution of these characters has been associated with behavioural ecology, integumentary production processes and perceptual mechanisms of the species involved. Here, we present the first insight into the molecular and histological basis of skin colour polymorphism ...
Juliane P. C. Monteiro, Heike Pröhl, Mariana L. Lyra, Andrés E. Brunetti, Eli C. de Nardin, Thais H. Condez, Célio F. B. Haddad, Ariel Rodríguez   +7 more
wiley   +1 more source

Malignant Mixed Irido‐Melanophoroma in a Betta splendens with Concurrent Mycobacterium chelonae Isolation—A Case Report

Journal of Fish Diseases, Volume 48, Issue 7, July 2025.
ABSTRACT A 10‐month‐old intact male blue Siamese fighting fish (Betta splendens) was presented to the Purdue University Small Animal Hospital with multiple bilateral masses on the caudal flank. Comprehensive evaluation using impression cytology, histopathology and transmission electron microscopy (TEM) revealed a tumour composed of a mixed‐cell ...
Zi An Yu, Lorraine A. Corriveau, Joanne B. Messick   +2 more
wiley   +1 more source

Fish Evo‐Devo: Moving Toward Species‐Specific and Knowledge‐Based Interactome

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 344, Issue 3, Page 158-168, May 2025.
Gaining knowledge‐based, fish‐specific interactomes is crucial in Evo‐Devo biology for uncovering how gene networks drive the unique adaptations and diversity of fish, the most diverse vertebrates. These interactomes also provide insights into conserved and derived mechanisms of vertebrate evolution, highlighting the molecular basis of key evolutionary
Ehsan Pashay Ahi
wiley   +1 more source

Transcriptome analysis reveals the candidate genes associated with skin color variation in Luciobarbus capito

Aquaculture Reports
The wild Luciobarbus capito exhibits gray-black dorsal and silvery-white abdomen. Recently, a few cultured individuals developed yellow mutation. The yellow Aral barbel represents a valuable germplasm resource due to its stable genetic body color and ...
Longwu Geng, Xinchi Shang, Haijun Wei, Guangxiang Tong, Wei Xu, Youyi Kuang   +5 more
doaj   +1 more source

Ultrastructural and biochemical analysis of epidermal xanthophores and dermal chromatophores of the teleost Sparus aurata.

Histology and histopathology, 1999
We have studied the pigmentary system of the teleost Sparus aurata skin by electron microscopy and chromatographic analysis. Under electron microscopy, we found the dermis to contain the three major types of recognized chromatophores: melanophores, xanthophores and iridophores.
Ferrer, C., Solano, F., Zuasti, A.
openaire   +3 more sources