Results 61 to 70 of about 4,653 (213)

Evolutionary Reorganization of Transcriptomic Architecture Across a UVB Tolerance Gradient in Fish

Ecology and Evolution, Volume 16, Issue 9, September 2026.
Environmental stress can drive adaptation through changes in transcriptomic organization. Across a UVB tolerance gradient in fish, adaptive responses were associated with increasingly coordinated and functionally specialized transcriptomic networks built upon a conserved functional background.
Camilo Valdivieso, Miguel Luis Allende
wiley   +1 more source

Dynamic light filtering over dermal opsin as a sensory feedback system in fish color change

Nature Communications, 2023
Dynamic color change has evolved multiple times, with a physiological basis that has been repeatedly linked to dermal photoreception via the study of excised skin preparations.
Lorian E. Schweikert, Laura E. Bagge, Lydia F. Naughton, Jacob R. Bolin, Benjamin R. Wheeler, Michael S. Grace, Heather D. Bracken-Grissom, Sönke Johnsen   +7 more
doaj   +1 more source

Molecular characterization of cell types in the squid Loligo vulgaris

eLife, 2023
Cephalopods are set apart from other mollusks by their advanced behavioral abilities and the complexity of their nervous systems. Because of the great evolutionary distance that separates vertebrates from cephalopods, it is evident that higher cognitive ...
Jules Duruz, Marta Sprecher, Jenifer C Kaldun, Al-Sayed Al-Soudy, Heidi EL Lischer, Geert van Geest, Pamela Nicholson, Rémy Bruggmann, Simon G Sprecher   +8 more
doaj   +1 more source

Beyond the Classics: The Synergy of AI and Genomics Reveals an Expanded Repertoire of Pigmentation Genes

Journal of Experimental Zoology Part B: Molecular and Developmental Evolution, Volume 346, Issue 6, Page 475-486, September 2026.
Classical approaches for coloration analysis are limited by human low‐resolution phenotyping and genetic analysis. Artificial intelligence allows us to find genes beyond the tip of the iceberg that explain color and pattern diversity in nature. ABSTRACT Pigmentation has long served as a powerful system for exploring gene–trait relationships, yet much ...
Ehsan Pashay Ahi, Nidal Karagic
wiley   +1 more source

Photosensitivity of Chromatophores [PDF]

American Zoologist, 1983
Almost all major phyla of invertebrates and lower vertebrates display a direct sensitivity of their chromatophores to light by either dispersing or—in rare cases—aggregating the pigment granules within the cell. This “primary response” of color change is an accessory component of the “dermal light sense” and characterizes the chromatophores as an ...
openaire   +1 more source

The Ultrastructure of the Spectacle, Cornea and Conjunctiva of the Short‐Nosed Sea Snake Aipysurus apraefrontalis (Elapidae, Squamata) With Particular Reference to the Sub‐Spectacular Space and Its Contents

Journal of Morphology, Volume 287, Issue 9, September 2026.
Using micro computed tomography, light microscopy and transmission electron microscopy, this study reveals that the conjunctival portions of the corneal epithelial and spectacular endothelial lining in the eye of the short‐nosed sea snake Aipysurus apraefrontalis possess high densities of microvilli to increase the surface area and two types of ...
H. Barry Collin, Boyin Liu, Sarah Wilson, Jenna M. Crowe‐Riddell, Shaun P. Collin   +4 more
wiley   +1 more source

Effect of replacing fishmeal with spirulina (Arthrospira platensis) powder on growth, survival, body coloration, and meat quality in the freshwater prawn Macrobrachium caementarius

Journal of the World Aquaculture Society
Microalgae are a valuable source of nutrients that are widely used in aquaculture to support the growth of aquatic species. This study aimed to assess the effect of replacing fishmeal with Spirulina powder (Arthrospira platensis) on the growth, survival,
Richar Mimbela‐Ipanaque, Dayane Narváez‐Rodríguez, Walter Reyes‐Avalos   +2 more
doaj   +1 more source

Phylogeographic Patterns of the Eigenmannia humboldtii Group Shaped by Miocene‐Pleistocene Transitions

Journal of Biogeography, Volume 53, Issue 9, September 2026.
ABSTRACT Aim Eigenmannia is a monophyletic genus of small and medium‐sized fishes known as ‘glass knifefishes’, with a wide distribution throughout the Neotropical region and a complex taxonomic history. This study aimed to investigate the phylogenetic diversification patterns within the Eigenmannia humboldtii species group (specifically E. nigra and E.
Weverton John P. Santos, Luiz Antônio W. Peixoto, Bianca L. Paiva, Alan Erik S. Rodrigues, Claudio Oliveira, José Augusto P. Bitencourt, Tiberio Cesar T. Burlamaqui, Jonathan S. Ready, João Bráullio de Luna Sales   +8 more
wiley   +1 more source

Effect of cadmium chloride on general body colouration and chromatophores of stinging cat fish, Heteropneustes fossilis (Bloch) [PDF]

, 2018
Chromatophores, specialized pigment cells in poikilothermic animals, have shown great potential in their use as a cell-based biosensor in the detection of a broad range of environmental toxicants, as structure and number of chromatophores alters ...
Sanjive Shukla, Shukla, Sandeep, Shukla, Sanjive, Ahmad, Shareef, Kasherwani, Deepak, Sandeep Shukla, Swami, Veena P., Anand Mishra, Shareef Ahmad, Mishra, Anand, Deepak Kasherwani, Veena P. Swami   +11 more
core   +1 more source

Integrating environmental DNA, diving surveys and DNA barcoding to track endangered twaite shad (Alosa fallax) spawning sites

Journal of Fish Biology, Volume 109, Issue 2, Page 1198-1209, August 2026.
Abstract The twaite shad (A. fallax), an anadromous fish species belonging to the Clupeidae family, has experienced population declines throughout Europe. This decline is attributable to a range of anthropogenic pressures, including migration barriers, environmental pollution, habitat degradation, predation by invasive species and unsustainable fishing
Alessia Ardenghi, Laura Filonzi, Nicolò Bellin, Pietro Maria Rontani, Matthew A. Campbell, Mattia Saccò, Morten E. Allentoft, Daniele Nizzoli, Armando Piccinini, Riccardo Papa, Francesco Nonnis Marzano   +10 more
wiley   +1 more source