Evidence of trans-Atlantic movement and natal homing of bluefin tuna from stable isotopes in otoliths

By J. Rooker, D. Secor, G. Demetrio, A. J. Kaufman, A. B. Ríos, V. Tičina. 2008

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Chemical Composition of Fish Hard Parts as a Natural Marker of Fish Stocks (2014, background): “…can be used to define a baseline characterization of the chemical fingerprint for a stock, and examination of multiple year-classes can establish the temporal stability of elemental or isotopic signatures in structures (Thorrold et al., 2001; Gillanders, 2002; Rooker et al., 2008, Figure 11.2).”
Crossing the line: migratory and homing behaviors of Atlantic bluefin tuna (2014, methodology): “Prior research has demonstrated that stable isotopes, particularly otolith δ18O, are valuable for discriminating bluefin tuna from putative nurseries (Rooker et al. 2006, 2008a).”
A comparison of otolith microchemistry and otolith shape analysis for the study of spatial variation in a deep-sea teleost, Coryphaenoides rupestris (2010, unknown): “1994), as well as studies of anadromy (Secor 1992), age validation (Chisnall and Kalish 1993), and population connectivity (Edmonds et al. 1989; Campana et al. 1995; Rooker et al. 2008).”
Geographically and environmentally driven spawning distributions of tuna species in the western Mediterranean Sea (2012, background): “Part of the population of the large migratory Atlantic bluefin tuna comes from the Atlantic and crosses the Strait of Gibraltar to reach the Balearic Islands to spawn (Block et al. 2005, Rooker et al. 2008).”