Results 11 to 20 of about 2,507 (219)

Eye Darkening Under Dehydration Stress in the Neotropical Frog Boana punctata (Schneider, 1799). [PDF]

J Exp Zool A Ecol Integr Physiol
Dehydration induces a strong and partially reversible increase in iris pigmentation in the Neotropical frog Boana punctata. The tight relationship between iris darkening and hydration state identifies ocular pigmentation as a simple, non‐invasive physiological biomarker with broad potential for assessing hydric stress in amphibian populations ...
Reques R, Schaefer EF, Sanabria EA, Aguiar LD, Quiroga LB, Tejedo M.   +5 more
europepmc   +2 more sources

A Recessive oca2 Mutation Underlies Albinism in Xiphophorus Fish. [PDF]

Pigment Cell Melanoma Res
Genetic mapping of albino Xiphophorus hellerii showed that albinism is associated with a recessive oca2 variant. This variant leads to early termination of the Oca2 protein. This study identifies a novel model system to investigate conserved mechanisms of pigmentation biology.
Xing Y, Boswell W, Parker J, Du K, Schartl M, Lu Y.   +5 more
europepmc   +2 more sources

SLC24A5 plays fundamental roles in regulating melanophore development in Cyprinidae fish

Reproduction and Breeding, 2021
The mechanism of color pattern formation in animals is complicated. Oujiang color common carp (Cyprinus carpio var. color) is an excellent fish model for studying the molecular mechanism of pigmentation.
Luwei Yu, Honglin Chen, Xuwen Hu, Xiaowen Chen, Zhiwei Liu, Jun Wang, Chenghui Wang   +6 more
doaj   +1 more source

Butylparaben Exposure Induced Darker Skin Pigmentation in Nile Tilapia (Oreochromis niloticus)

Toxics, 2023
Butylparaben (BuP), as an emerging contaminant with endocrine-disrupting effects, may exert effects on skin pigmentation in fish by interfering with the neuroendocrine system. Therefore, models of BuP exposure in Nile tilapia (Oreochromis niloticus) were
Song Liu, Nan Zhang, Zhifang Liang, Er-chao Li, Yong Wang, Shijie Zhang, Jiliang Zhang   +6 more
doaj   +1 more source

Taisho-Sanshoku koi have hardly faded skin and show attenuated melanophore sensitivity to adrenaline and melanin-concentrating hormone

Frontiers in Endocrinology, 2022
IntroductionKoi carp, an ornamental fish derived from the common carp Cyprinus carpio (CC), is characterized by beautiful skin color patterns. However, the mechanism that gives rise to the characteristic vivid skin coloration of koi carp has not been ...
Yukari Shinohara, Satoshi Kasagi, Noriko Amiya, Yukihiro Hoshino, Ryo Ishii, Noriyuki Hyodo, Hiroaki Yamaguchi, Shoh Sato, Masafumi Amano, Akiyoshi Takahashi, Kanta Mizusawa   +10 more
doaj   +1 more source

Isolation of Chromatophores from Brown Trout (Salmo trutta) Skin

Fishes, 2022
As new techniques for single-cell analysis are evolving, there is a growing need for streamlined and flexible protocols for single-cell suspension preparation and single-cell isolation.
Gašper Renko, Ida Djurdjevič, Simona Sušnik Bajec   +2 more
doaj   +1 more source

Type II Opsins in the Eye, the Pineal Complex and the Skin of Xenopus laevis: Using Changes in Skin Pigmentation as a Readout of Visual and Circadian Activity

Frontiers in Neuroanatomy, 2022
The eye, the pineal complex and the skin are important photosensitive organs. The African clawed frog, Xenopus laevis, senses light from the environment and adjusts skin color accordingly.
Gabriel E. Bertolesi, Nilakshi Debnath, Hannan R. Malik, Lawrence L. H. Man, Sarah McFarlane   +4 more
doaj   +1 more source

A new species of Satanoperca (Teleostei: Cichlidae) from the Rio Tocantins basin, Brazil

Neotropical Ichthyology, 2021
A new species of Satanoperca is described from the Rio Araguaia, Rio Tocantins basin, Brazil, and non-native records are available in the upper Rio Paraná basin. It differs from congeneric species by color pattern characters, such as head and flank marks.
Renata Rúbia Ota, Gabriel de Carvalho Deprá, Sven Kullander, Weferson Júnio da Graça, Carla Simone Pavanelli   +4 more
doaj   +1 more source

Melanophore Response and Behavior of the Marine Isopod Sphaeroma quadridentatum in the Presence of A Common Estuarine Predator Species [PDF]

, 2023
Sphaeroma quadridentatum (Say 1818) is a coastal species of marine isopod common in the US East and Gulf coasts that can be found in the TAMUG Small Boat Basin. S. quadridentatum has been shown to employ a melanophore response mechanism which changes the
Santoni Delgado, Edsel Gabriel
core   +1 more source

Larval Morphological Development and Seasonal Variation of the Mediterranean Sand Eel, Gymnammodytes cicerelus (Rafinesque, 1810) in the Shallow Waters of Gökçeada Island, North Aegean Sea

Çanakkale Onsekiz Mart University Journal of Marine Sciences and Fisheries, 2020
Mediterranean sand eel, Gymnammodytes cicerelus (Rafinesque, 1810) is a demersal subtropical fish species belonging to the family Ammodytidae. In this study, the morphological development and temporal variations of Mediterranean sand eel larvae were ...
İsmail Burak DABAN, Ali İŞMEN
doaj   +1 more source