Trachurus picturatus (Bowdich, 1825)

Iglésias, Samuel P., Bariche, Michel, Beau, Florent, Bérenger, Lucas, Beucher, Renaud, Chabrolle, Antoine, Cottalorda, Jean-Michel, Cousin, Bertrand, Curd, Amelia, Danet, Valentin, Duhamel, Erwan, Duval, Audrey, Farque, Pierre-André, Goascoz, Nicolas, Jadaud, Angélique, Larnaud, Pascal, Bouter, Mathieu Le, Bras, Yvan Le, Bris, Sylvain Le, Lombard, Laurent, Louisy, Patrick, Mandine, Alain, Mas, Lise, Menut, Thomas, Metral, Luisa, Poussard, Pierre, Quéro, Jean-Claude, Raybaud, Virginie, Renoult, Julien P., Richard, Thomas, Spitz, Jérôme, Ternon, Quentin, Thiriet, Pierre & Tournier-Broer, Ruben, 2021, French ichthyological records for 2019, Cybium 45 (3), pp. 169-188 : 176

Trachurus picturatus (Bowdich, 1825)

Three Blue jack mackerels, Carangidae ( Fig. 5D ), were collected in the Bay of Biscay ( France) during the EVHOE survey, using a bottom trawl. The first specimen was collect- ed on 23 Oct 2019, at Station X0445, at 46.5760 / 46.5516 °N, 4.7292 / 4.7273 °W, at 179-182 m depth. The fresh specimen measured 182 mm TL, 166 mm FL, 41 mm HL and weighed 44.5 g. This specimen was preserved with the collection No. MNHN-IC 2021-0146 and a tissue sample was preserved under No. BPS-4260. The second specimen was collected on 24 Oct 2019, at Station X0448, at 46.3313 / 46.3208 °N, 4.2468 / 4.2292 °W, at 172-175 m depth. The fresh specimen measured 166 mm TL, 147 mm FL, 31 mm HL and weighed 38.7 g. This specimen was preserved for osteology by Nalani Schnell. The third specimen was collected on 03 Nov 2019, at Station X0500, at 47.0798 / 47.0459 °N, 3.0500 / 3.0514 °W, at 59-61 m depth. The fresh specimen measured 161 mm TL and weighed 30.0 g. This specimen was preserved with the collection No. MNHN-IC 2021-0147 and a tissue sample was preserved under No. BPS-4292. Recorded by S.P. Iglésias. A Blue jack mackerel was previously collected with a pelagic trawl on 17 May 2013 during the survey PELGAS ( Doray et al., 2013) on the Research Vessel Thalassa , Station R0260, at 46.45°N, 4.62°W, at 18 m depth close to the bottom. This unpreserved specimen was 36 cm TL and weighed 370 g. Recorded by E. Duhamel. The species was previously recorded only once in the French waters of the southern Bay of Biscay in 1965/1966 ( Guichet, 1966; Quéro et al., 2007). This very rare species in the area can be confused with the very common T. trachurus (Linnaeus, 1758) and the common T. mediterraneus (Steindachner, 1868) . The 2019 records are the first ones for the French Bay of Biscay supported by voucher specimens. Blue jack mackerel can now be considered established in the area.

Figures

Figure 5. – Significant French ichthyological records for 2019 (continued). A: Remora remora, ~45 cm TL, 09 Sep 2019 (© P. Malejacq); B: Caranx crysos, 422 mm TL, 13 Sep 2019, MNHN-IC 2021-0145 (© S.P. Iglésias); C: Naucrates ductor, ~30-35 cm TL, 09 Sep 2019, reversed image (© P. Malejacq); D: Trachurus picturatus, 182 mm TL, 23 Oct 2019, MNHN-IC 2021-0146 (© S.P. Iglésias); E: Seriola rivoliana, ~45 cm TL, 24 Aug 2019 (© L. Alexandre); F: Seriola rivoliana, 45 cm TL, 13 Sep 2019 (© R. Beucher); G: Argyrosomus regius, 155 cm TL, 17 Aug 2019 (© V. Ravel); H: Parablennius pilicornis, ~8 cm TL, 09 Sep 2019 (© P. Thiriet).