The role of angiotensin II to support arterial blood pressure following serial haemorrhage in the freshwater channel catfish (Ictalurus punctatus) [0.03%]
血管紧张素Ⅱ在连续失血后支撑钝头齿鱼动脉血压的作用
K Austin Davis,Max G Sanderford
K Austin Davis
Reductions in blood volume and changes to environmental salinity are known regulators of the renin-angiotensin system (RAS) in marine and euryhaline species of fish. However, the mechanisms activating the RAS in freshwater stenohaline speci...
Quantitative insights into the spatio-temporal variation of Atlantic salmon (Salmo salar) biomass in a river catchment using eDNA metabarcoding [0.03%]
基于环境DNA宏条形码技术研究河域大西洋鲑鱼(Salmo salar)生物量的时空变化规律
William Bernard Perry,Nigel Milner,Ifan Bryn Jâms et al.
William Bernard Perry et al.
Effective species conservation and management requires comprehensive biomonitoring, enhanced by combining traditional and newer methodologies, such as environmental DNA (eDNA) analyses. A seasonal pulse of spawning adult Atlantic salmon (Sa...
Assessing the population structure of Plagioscion squamosissimus (Teleostei, Perciformes, Sciaenidae) from the São Francisco River, Bahia, Brazil, using body morphology and otolith shape signatures [0.03%]
基于体型和耳石形状特征分析巴西萨尔瓦多圣弗朗西斯科河拟刺鮻的种群结构
F L Freitas,N S Pereira,P B Pinheiro et al.
F L Freitas et al.
The south American silver croaker, Plagioscion squamosissimus, holds significant importance for the artisanal fisheries in the sub-middle and lower courses of the São Francisco River, located in northeastern Brazil. To investigate the popu...
Distribution modelling for Neotropical freshwater stingrays Potamotrygon brachyura and Potamotrygon motoro (Myliobatiformes, Potamotrygonidae) in the Uruguay River basin [0.03%]
乌拉圭河盆地新热带地区淡水电鲼Potamotrygon brachyura和Potamotrygon motoro的分布模型研究(Myliobatiformes，Potamotrygonidae)
Danilo Araujo Soares Pereira,Roberto E Reis,Nelson F Fontoura
Danilo Araujo Soares Pereira
This study aimed to identify geographical distribution patterns of the giant short-tailed river stingray Potamotrygon brachyura and the motoro stingray Potamotrygon motoro in the Uruguay River basin. Data on presence/absence of stingrays we...
Life cycle, natural mortality and exploitation rate of Totoaba macdonaldi [0.03%]
托氏石首鱼(Totoaba macdonaldi)的生活史、自然死亡率和捕捞量
Miguel Á Cisneros-Mata,Marcelo V Curiel-Bernal
Miguel Á Cisneros-Mata
Natural mortality rate (M) is a crucial parameter for fish and other species. In fisheries management it is common practice to obtain estimates of M using one of several empirical formulas available in the literature. However, when using th...
Fish eye growth rate and vertical habitat: A maximum for eye growth rate investment in the mesopelagic zone [0.03%]
鱼眼生长速度及垂直栖息地：一个中层海洋区域眼睛生长速度投资的最大值
Jérôme Pinti,Alexia Elizardo,Samuel Hankinson et al.
Jérôme Pinti et al.
Vision is one of the most important means by which animals perceive their environment. In the pelagic ocean, there is an enormous gradient of available light from the well-lit surface to the deep bathypelagic zone. Fish inhabiting different...
No evidence of evolutionary impact from size-selective harvesting on epigenetic and reproductive molecular markers in zebrafish (Danio rerio) gonads [0.03%]
从表观遗传和生殖分子标记角度研究大小选择性收获对斑马鱼（Danio rerio）性腺的进化影响未果
Laia Ribas,Marcela Salazar,Robert Arlinghaus et al.
Laia Ribas et al.
This study investigates whether size-selective harvesting induced heritable changes reflected in epigenetic and reproductive molecular markers in zebrafish (Danio rerio), thereby indicating potential evolutionary responses. We used an exper...
Drone observations reveal white shark (Carcharodon carcharias) dorsal fins are highly flexible and possible investigatory structures [0.03%]
无人机观测发现大白鲨(Carcharodon carcharias)的背鳍非常灵活且可能是其探究结构
Carlos Gauna,Phillip C Sternes
Carlos Gauna
Drones are becoming increasingly useful in their ability to observe wildlife. They have been especially useful in documenting marine animals such as sharks. Here we present novel aerial drone observations of a previously unknown dorsal-fin ...
Honor T Ifon,Philomena E Asuquo,George E Eni et al.
Honor T Ifon et al.
Floodplains support a diverse cichlid community, yet the trophic ecology of these species is not well understood. This study investigated the dietary niches and trophic guilds of cichlid species in the Cross River floodplain. A total of 480...
Wayward youth: how maturity, reproduction and seaweed drive snapper (Lutjanus spp.) habitat shifts [0.03%]
放任的青年：成熟、繁殖和海藻如何驱动鲈鱼（Lutjanus属）栖息地的变化
Laughlin Siceloff,Matthew S Kendall,Clayton Pollock et al.
Laughlin Siceloff et al.
Despite snappers' (family Lutjanidae) commercial and ecological significance, knowledge gaps remain regarding life history, ontogeny and ecology across their range in the Caribbean and south Atlantic. There is also a need to explore the eff...