Xavier, J.C. & Vieira, C. & Assis, C. & Cherel, Y. & Hill, S. & Costa, M.E. & Borges, T.C. & Coelho, R. (2012)
Feeding ecology of the deep-sea lanternshark Etmopterus pusillus (Elasmobranchii: Etmopteridae) in the northeast Atlantic. Scientia Marina, 76(2), 301–310
DOI: 10.3989/scimar.03540.07B

Xavier, L.G. & Bovcon, N.D. & Basilio, T.H. & Freitas, J.E.P. & Charvet, P. & Faria, V.V. (2024)
istributional limits of the Shortnose Guitarfish, Zapteryx brevirostris (Rhinopristiformes: Trygonorrhinidae) - An update. Ocean and Coastal Research, 72, Article e24073
DOI: 10.1590/2675-2824072.23119

Xavier, R. & Santos, J.L. & Verissimo, A. (2018)
Phylogenetic evidence for an ancestral coevolution between a major clade of coccidian parasites and elasmobranch hosts. Systematic Parasitology, 95(4), 367–371
DOI: 10.1007/s11230-018-9790-4

Xavier, R. & Severino, R. & Pérez-Losada, M. & Gestal, C. & Freitas, R. & Harris, D.J. & Veríssimo, A. & Rosado, D. & Cable, J. (2018)
Phylogenetic analysis of apicomplexan parasites infecting commercially valuable species from the North-East Atlantic reveals high levels of diversity and insights into the evolution of the group. Parasites & Vectors, 11, Article 63
DOI: 10.1186/s13071-018-2645-7

Xian, Y.P. & Dong, H. & Luo, H.Y. & Luo, D.H. & Wu, Y.L. & Zhao, M.M. & Guo, X.D. (2015)
Identification of dried shark fins by analysis of seven sugars using pre-column derivatization high-performance liquid chromatography and stable carbon isotope ratio analysis. Analytical Methods, 7(14), 5973–5980
DOI: 10.1039/c5ay01052g

Xiao, Y. & Brown, L.P. & Walker, T.I. & Punt, A.E. (1999)
Estimation of instantaneous rates of tag shedding for school shark, Galeorhinus galeus, and gummy shark, Mustelus antarcticus, by conditional likelihood. Fishery Bulletin, 97(1), 170–184

Xiao, Y. & Walker, T.I. (2000)
Demographic analysis of gummy shark (Mustelus antarcticus) and school shark (Galeorhinus galeus) off southern Australia by applying a generalized Lotka equation and its dual equation. Canadian Journal of Fisheries and Aquatic Sciences, 57, 214–222
DOI: 10.1139/f99-224

Xiao, Y.S. (1998)
Two simple approaches to use of production models in fish stock assessment. Fisheries Research, 34(1), 77–86
DOI: 10.1016/s0165-7836(97)00064-7

Xiong, X.F. & Anderson, P.M. (1989)
Purification and properties of ornithine carbamoyl transferase from liver of Squalus acanthias. Archives of Biochemistry and Biophysics, 270(1), 198–207
DOI: 10.1016/0003-9861(89)90021-0

Xu, M. & Pethybridge, H.R. & Li, Y.K. (2022)
Trophic niche partitioning of five sympatric shark species in the tropical eastern Pacific Ocean revealed by multi-tissue fatty acid analysis. Environmental Research, 214, Article 113828
DOI: 10.1016/j.envres.2022.113828

Xu, S.Y. & Zhao, R.R. & Cai, S.S. & Li, P.F. & Han, Z.Q. (2023)
Application of genomic markers generated for ray-finned fishes in chondrichthyan Phylogenomics. Organisms Diversity & Evolution, 23, 1005–1012
DOI: 10.1007/s13127-023-00607-w

Xu, X. & Qin, Y. & Luo, G. & Huang, X. & Zou, W.-Z. & Zheng, L. & Wang, J. & Su, Y. (2015)
Ontogeny of digestive organs during early developmental stages of the tropical whitespotted bamboo shark, Chiloscyllium plagiosum – a histological study. Marine and Freshwater Behaviour and Physiology, 48(4), 253–266
DOI: 10.1080/10236244.2015.1050229

Xu, X.H. & Lv, P.F. & Wang, T.X. & Wang, B.X. & Shi, Y. & Wang, Bi.X. & Meng, Z.R. & Chen, Q.X. & Zhuang, J.X. & Wang, Y.Y. (2020)
Bone-strengthening effects and safety of compound peptides from skin of Chiloscyllium plagiosum and Mustelus griseus. Food Science & Nutrition, 8(3), 1522–1533
DOI: 10.1002/fsn3.1438

Xu, Y.W. & Dai, X.J. & Huang, Z.R. & Sun, M.S. & Chen, Z.Z. & Zhang, K. (2022)
Stock Assessment of Four Dominant Shark Bycatch Species in Bottom Trawl Fisheries in the Northern South China Sea. Sustainability, 14(7), Article 3722
DOI: 10.3390/su14073722

Xu, Z.X. & Liang, Q.Y. & Lu, D.C. & Chen, G.J. & Du, Z.J. (2016)
Pistricoccus aurantiacus gen. nov., sp nov., a moderately halophilic bacterium isolated from a shark. Antonie Van Leeuwenhoek International Journal of General and Molecular Microbiology, 109(12), 1593–1603
DOI: 10.1007/s10482-016-0760-z

Xue, X. & Xue, J. & Liu, W. & Adams, D.H. & Kannan, K. (2017)
Trophic Magnification of Parabens and Their Metabolites in a Subtropical Marine Food Web. Environmental Science & Technology, 51(2), 780–789
DOI: 10.1021/acs.est.6b05501

Xue, X.-X. (1980)
New materials of Hybodontidae in Gansu and Shaanxi. Vertebrata Palasiatica, 18(1), 9–14

Xydes, A. & Moline, M. & Lowe, C.G. & Farrugia, T.J. & Clark, C. (2013)
Behavioral characterization and Particle Filter localization to improve temporal resolution and accuracy while tracking acoustically tagged fishes. Ocean Engineering, 61, 1–11
DOI: 10.1016/j.oceaneng.2012.12.028

Xylander, W.E.R. & Poddubnaya, L.G. (2009)
Ultrastructure of the neodermal sclerites of Gyrocotyle urna Grube and Wagener, 1852 (Gyrocotylidea, Cestoda). Parasitology Research, 105(6), 1593–1601
DOI: 10.1007/s00436-009-1596-5