Fauna Norvegica, 2020 Time and spatial variations in macroparasite status were investigated in European perch, Perca fluviatilis, European whitefish, Coregonus lavaretus, and Arctic charr, Salvelinus alpinus in Lake Norsjø (Southern Norway), based on gillnet fishing in three ...
Tom Robin Olk +5 more
doaj +1 more source
Ecology and Evolution, Volume 15, Issue 10, October 2025.Hadal snailfish are not endemic to single deep‐sea features, as evidenced by multiple documented range extensions of hadal snailfish species. Our data supports the recommendation that Notoliparis should be considered a subjective junior synonym of the genus Pseudoliparis and highlights the importance of expanding sampling efforts.
Paige J. Maroni +3 more
wiley +1 more source
Spermatogenesis and sperm structure in the black-striped pipefish Syngnathus abaster (Teleostei, Syngnathidae) = Spermatogenesi e struttura degli spermatozoi in Syngnathus abaster (Teleostei, Synghathidae) [PDF]
, 2010 The gonads of adult males of the black-striped pipejish Syngnathus abaster were observed during the reproductive season to describe mature sperm both quantitativel/y and qualitatively.
Addis, Alberto +3 more
core
Predator avoidance in extremophile fish [PDF]
, 2013 Extreme habitats are often characterized by reduced predation pressures, thus representing refuges for the inhabiting species. The present study was designed to investigate predator avoidance of extremophile populations of Poecilia mexicana and P ...
Arias-Rodriguez, Lenin +7 more
core +2 more sources
The genomic Make-Up of a Hybrid Species - Analysis of the Invasive Cottus Lineage (Pisces, Teleostei) in the River Rhine system [PDF]
, 2007 In the past years a new invasive lineage of sculpins (Cottus species complex) has been studied that is currently expanding in the Lower River Rhine. Molecular analysis showed that this lineage has originated through hybridization of Cottus perifretum ...
Stemshorn, Kathryn
core
The distribution of the fathead sculpin species Cottunculus subspinosus Jensen, 1902
Fauna Norvegica, 2018 The range of the rarely caught fathead sculpin species Cottunculus subspinosus has been considered restricted to the waters off East Greenland and Northeast Iceland. For the first time the species is recorded from the east side of the Norwegian Sea, and
Ingvar Byrkjedal +3 more
doaj +1 more source
Prey body size mediates the predation risk associated with being "odd" [PDF]
, 2014 Despite selection pressures on prey animals to maintain phenotypically homogeneous groups, variation in phenotype within animal groups is commonly observed.
Downing, Beatrice +2 more
core +2 more sources
Teleostei, Scophthalmidae: four-spot megrim spotted in Norwegian waters
Fauna Norvegica, 2019 The flatfish four-spot megrim (Lepidorhombus boscii) was registered in Norwegian waters, both in trawl catches and video observations. The records represent a considerable northward extension of the species.
Rupert Wienerroither +3 more
doaj +1 more source
Origine e radiazione degli Acantomorfi (Teleostei, Acanthomorpha): implicazioni stratigrafiche, paleoecologiche e filogenetiche. [PDF]
, 2009 Origine e radiazione degli Acantomorfi (Teleostei, Acanthomorpha): implicazioni stratigrafiche, paleoecologiche e ...
NATALE, MARCO
core
Altering an extended phenotype reduces intraspecific male aggression and can maintain diversity in cichlid fish [PDF]
, 2013 Reduced male aggression towards different phenotypes generating negative frequency-dependent intrasexual selection has been suggested as a mechanism to facilitate the invasion and maintenance of novel phenotypes in a population.
Croft, Guy E. +2 more
core +2 more sources