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Antarctic toothfish Dissostichus mawsoni as a bioindicator of trace and rare ea...
Queirós, José P.; Machado, João F.; Pereira, Eduarda; Bustamante, Paco; Carvalho, Lina; Soares, Eugénio; Stevens, Darren W.; Xavier, José CarlosThe Antarctic toothfish Dissostichus mawsoni is a Southern Ocean long-lived top predator which is regularly captured on an annual fishery operating in the region. By its biological and ecological characteristics, it is a potential bioindicator for the concentrations of trace and rare earth elements in the Antarctic. As these elements are mainly transferred through the diet and a deficiency or excess of these el...
Corrigendum: The significance of cephalopod beaks as a research tool: An update
Xavier, José Carlos; Golikov, Alexey V; Queirós, José P.; Perales-Raya, Catalina; Rosas-Luis, Rigoberto; Abreu, José; Bello, Giambattista[This corrects the article DOI: 10.3389/fphys.2022.1038064.].
Corrigendum: The significance of cephalopod beaks as a research tool: An update
Xavier, José C.; Golikov, Alexey V.; Queirós, José P.; Perales-Raya, Catalina; Rosas-Luis, Rigoberto; Abreu, José; Bello, Giambattista; Bustamante, PacoIn the published article, there was an error in the author list, and author Jorge Hernández-Urcera was erroneously excluded. The corrected author list appears below.
Age and growth estimation of Southern Ocean squid Moroteuthopsis longimana: can...
Queirós, José P.; Bartolomé, Aurora; Piatkowski, Uwe; Xavier, José C.; Perales-Raya, CatalinaSquid play a major role in the Southern Ocean food web. However, their age and growth remain poorly studied. Here, using upper and lower beaks of Moroteuthopsis longimana collected from the diet of Dissostichus mawsoni from Pacific and Atlantic sectors of the Southern Ocean, we studied: (1) Feasibility of using beaks collected from predators’ stomachs to study the age of Southern Ocean oceanic squid; and (2) Ag...
The significance of cephalopod beaks as a research tool: An update
Xavier, José C.; Golikov, Alexey V.; Queirós, José P.; Perales-Raya, Catalina; Rosas-Luis, Rigoberto; Abreu, José; Bello, Giambattista; Bustamante, PacoThe use of cephalopod beaks in ecological and population dynamics studies has allowed major advances of our knowledge on the role of cephalopods in marine ecosystems in the last 60 years. Since the 1960's, with the pioneering research by Malcolm Clarke and colleagues, cephalopod beaks (also named jaws or mandibles) have been described to species level and their measurements have been shown to be related to ceph...
The significance of cephalopod beaks as a research tool: an update
Xavier, José C.; Golikov, Alexey V.; Queirós, José P.; Perales-Raya, Catalina; Rosas-Luis, Rigoberto; Abreu, José; Bello, Giambattista; Bustamante, PacoThe use of cephalopod beaks in ecological and population dynamics studies has allowed major advances of our knowledge on the role of cephalopods in marine ecosystems in the last 60 years. Since the 1960’s, with the pioneering research by Malcolm Clarke and colleagues, cephalopod beaks (also named jaws or mandibles) have been described to species level and their measurements have been shown to be related to ceph...
High mercury levels in Antarctic toothfish Dissostichus mawsoni from the Southw...
Queirós, José P.; Hill, Simeon L.; Pinkerton, Matt; Vacchi, Marino; Coelho, João P.; Pereira, Eduarda; Ramos, Jaime A.; Seco, José; Stevens, Darren W.Mercury is a bioaccumulating toxic pollutant which can reach humans through the consumption of contaminated food (e.g. marine fish). Although the Southern Ocean is often portrayed as a pristine ecosystem, its fishery products are not immune to mercury contamination. We analysed mercury concentration (organic and inorganic forms - T-Hg) in the muscle of Antarctic toothfish, Dissostichus mawsoni, a long-lived top...
Eastern rockhopper penguins Eudyptes filholi as biological samplers of juvenile...
Xavier, José C.; Cherel, Y.; Rafael Ceia, Filipe; Queirós, José P.; Guimarães, B.; Rosa, Rui; Cunningham, D. M.; Moors, P. J.; Thompson, D. R.Early life-history stages of cephalopods are known to play an important role as prey in food webs of the Southern Ocean, but little information is available about their biology and availability to predators. Top predators, such as penguins, are known to feed regularly on coastal juvenile/sub-adult cephalopods. Using eastern rockhopper penguins Eudyptes filholi as coastal biological samplers, we examined in deta...