Results 61 to 70 of about 2,198 (218)
Abstract Photoperiod manipulation is widely used to regulate reproduction in temperate fish species, but little is known about its effects in strictly tropical species. This study evaluated whether the Emperor tetra (Nematobrycon palmeri), a tropical ornamental fish, can modulate sexual maturation in response to artificial light regimes.
Lury N. García +2 more
wiley +1 more source
Kinesin‐Induced Buckling Reveals the Limits of Microtubule Self‐Repair
This study shows that kinesin‐driven buckling induces extensive microtubule lattice damage that often exceeds intrinsic self‐repair and leads to filament failure. While curvature, motor motility, and force individually cause limited damage, their combination overwhelms repair.
Shweta Nandakumar +9 more
wiley +1 more source
Assessing Colouration in Ichthyology: Insights from the Melanophore Index Perspective
Fish colouration significantly influences various aspects of their biology, including communication, camouflage, and mate selection. Among the pigment cells responsible for generating colours, melanophores are particularly significant due to their ...
Nivethitha, P., Pragasan , L. Arul
core +1 more source
Melanophore response assay in zebrafish v1
Melanophores (also called melanocytes) are chromatophores (pigment-containing epithelial cells) that contain black or dark brown pigment granules. The aggregation or dispersal of these cells is under hormonal or nervous system control; these responses ...
Dainara Pereira dos Santos Souza +1 more
core +1 more source
Figure 5: Melanophore movement with our Box initial condition.
Figure 5: Melanophore movement with our Box initial condition. (a)–(d) Snapshots of the ensemble average number density (cells/mm2) across 10, 000 ABM realizations, (e)–(h) corresponding PDE results using the optimal value of αmm for a mesh resolution of
William Martinson (16466514)
core +1 more source
Coordinated regulation of chromatophore differentiation and melanogenesis during the ontogeny of skin pigmentation of Solea senegalensis (Kaup, 1858). [PDF]
Abnormal pigmentation of Senegalese sole has been described as one problem facing the full exploitation of its commercial production. To improve our understanding of flatfish pigmentation of this commercially important species we have evaluated eleven ...
Maria J Darias +6 more
doaj +1 more source
We examined whether the “white” threespine stickleback of Nova Scotia represents a nascent species distinct from sympatric common marine sticklebacks. Genomic analyses revealed that whites form a unique genetic cluster with low but widespread divergence across the genome despite evidence of gene flow, while morphometric and isotopic data indicated ...
Kieran Samuk +2 more
wiley +1 more source
Melanopsin: An opsin in melanophores, brain, and eye [PDF]
We have identified an opsin, melanopsin, in photosensitive dermal melanophores of Xenopus laevis . Its deduced amino acid sequence shares greatest homology with cephalopod opsins. The predicted secondary structure of melanopsin indicates the presence of a long cytoplasmic tail with multiple putative phosphorylation ...
Provencio, I. +4 more
openaire +3 more sources
Ballan wrasse and lumpfish effectively reduce sea lice on salmon year round, although lumpfish struggle with cryptic lice, highlighting new considerations for lice management. Abstract BACKGROUND Cleaner fish play a crucial role in controlling caligid sea lice in Atlantic salmon aquaculture across the North Atlantic.
Adam Jonathan Brooker +4 more
wiley +1 more source
Melanophore size is reduced in enz mutant embryos at 2 dpf.
Melanophore size is reduced in enz mutant embryos at 2 dpf.
Paul D. Henion (52133) +2 more
core +1 more source

