Freshwater fishes maintain multi-trait phenotypic stability across an environmental gradient in aqueous calcium [0.03%]
淡水鱼在水环境钙浓度梯度下保持多性状表型稳定性
Sarah Sanderson,Louis Astorg,Grant E Haines et al.
Sarah Sanderson et al.
Reductions in a limiting nutrient might be expected to necessitate compromises in the functional traits that depend on that nutrient; yet populations existing in locations with low levels of such nutrients often do not show the expected deg...
The thermal dependence of the protein-sparing effect in rainbow trout (Oncorhynchus mykiss, Walbaum 1792) [0.03%]
虹鳟鱼(Oncorhynchus mykiss)蛋白质保存作用的热依赖性研究
Philipp Segler,Klaus Heinrich Vanselow,Michael Schlachter et al.
Philipp Segler et al.
The authors performed an instantaneous bioenergetic study with rainbow trout (Oncorhynchus mykiss) of 206.3 g ± 2.9 g in a group respirometer of nine 250 l tanks at five different water temperatures (12, 14, 16, 18, 20°C) to determine the...
Validating the occurrence of the giant mottled eel (Anguilla marmorata) in the Galápagos Islands [0.03%]
巨花鳗鲡(Anguilla marmorata)在加拉帕戈斯群岛出现的验证
Daniel Escobar-Camacho,Wilson Andrade,Nathalia Valencia et al.
Daniel Escobar-Camacho et al.
The giant mottled eel (Anguilla marmorata) is distributed mostly in the Indo-West Pacific. However, a few records indicate the presence of this eel in the Tropical Central and East Pacific. In April 2019, an eel specimen was caught in a sma...
Can canthaxanthin intensify the colour of the blood swordtail Xiphophorus helleri? [0.03%]
角黄素能否增强血剑尾(Xiphophorus helleri)的色彩?
Bruno Silva Olier,Otávio Mesquita De Sousa,Eduardo Gomes Sanches
Bruno Silva Olier
Colouring has a great influence on the commercialization of ornamental fish. The aim of this study was to evaluate different concentrations of canthaxanthin in the diet of the blood swordtail Xiphophorus helleri in an effort to obtain a mor...
The challenge of implementing environmental DNA metabarcoding to detect elasmobranchs in a resource-limited marine protected area [0.03%]
在资源有限的海洋保护区内实施环境DNA宏条形码技术以检测软骨鱼面临的挑战
Marcelo Merten Cruz,Thomas Sauvage,Anthony Chariton et al.
Marcelo Merten Cruz et al.
Elasmobranchs are threatened and eDNA metabarcoding is a powerful tool that can help efforts to better understand and conserve them. Nevertheless, the inter-calibration between optimal methodological practices and its implementation in reso...
A knight in shining armor: iridescence in male jewelled splitfin (Xenotoca variata) [0.03%]
耀眼的铠甲:华丽光分鳍鱼(Xenotoca variata)雄性的虹彩鳞片
William Bernard Perry
William Bernard Perry
Comparative transcriptome analysis reveals sex bias in expression patterns of genes related to sex steroids and immunity in the skin of spinyhead croaker Collichthys lucidus [0.03%]
基于月光下刀额新对虾性二态表型的转录组分析
Li Zhou,Fujiang Liu,Junnan Chen et al.
Li Zhou et al.
Fish skin is the first barrier against external invasion, and also an important interface for communication between males and females during reproduction. Nonetheless, sexual dimorphism in the physiology of fish skins is still poorly unders...
Factors influencing the downstream passage of European silver eels (Anguilla anguilla) through a tidal sluice [0.03%]
影响欧洲银鳗(Anguilla anguilla)通过潮汐水闸下游迁移的因素
Jeroen B J Huisman,Leander Höhne,Reinhold Hanel et al.
Jeroen B J Huisman et al.
Tidal sluices are a frequent element in the tidal regions of Europe's rivers and may hinder downstream migrating European eels Anguilla anguilla. Sea level rise will reduce the possibility for tidal sluices to freely discharge water, furthe...
Bilateral fluctuation asymmetry of otoliths of Collichthys lucidus in different functional areas of Haizhou Bay [0.03%]
半滑舌鳎耳石双边波动不对称性及其在不同功能区间的分布特征——以 Halifax 湾为例
Shike Gao,Xiao Zhang,Ruilin Shu et al.
Shike Gao et al.
The fluctuating asymmetry (FA) of fish otoliths can reflect the difference in the growth and development of fish in sea areas greatly affected by environmental pressure, thus enabling the assessment of different habitats. In this study, usi...
A new species of Parauchenoglanis (Auchenoglanididae: Siluriformes) from the Upper Lualaba River (Upper Congo), with further evidence of hidden species diversity within the genus [0.03%]
刚果上卢阿拉巴河发现Parauchenoglanis一新种(Auchenoglanididae, 鳞齿鱼科),兼论属内隐藏物种多样性进一步证据
Yonela Sithole,Tobias Musschoot,Charlotte E T Huyghe et al.
Yonela Sithole et al.
Parauchenoglanis zebratus sp. nov. is a new species endemic to the Upper Lualaba in the Upper Congo Basin. It is distinguished from all its congeners known from the Congo Basin and adjacent basins by the presence of (1) distinctive dark-bro...