Tetronarce nobiliana (Bonaparte, 1835)

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 : 170

Tetronarce nobiliana (Bonaparte, 1835)

A Black electric ray, Torpedinidae ( Fig. 2A ), was collected on 25 Nov 2019 during the EVHOE survey, using a bottom trawl. The specimen was collected in the Celtic Sea (southern Ireland), at Station X0557 (50.4535 / 50.4335 °N, 8.1973 / 8.2337 °W), at 117-118 m depth. The fresh specimen, an adult male, measured 699 mm TL, 367 mm DL, 482 mm DW, calcified claspers 98 mm long. Fresh weight 5.50 kg, liver 848.8 g, spleen 8.0 g, pancreas 11.8 g, stomach content 69.0 g including a digested Micromesistius poutassou (Risso, 1827) about 20 cm long. Testis was very thin. Jaws and vertebrae were preserved. Recorded by T. Richard. The species is uncommonly recorded in European Atlantic waters and its life history is poorly known. In the Bay of Biscay, on 15 Jul 1985, a large specimen (48 kg) was collected south west of La Coubre, off the mouth of the Gironde estuary, at about 45.6°N, 1.3°W, at 50 m depth ( Quéro et al., 1986). Another individual (117 cm TL, 22.6 kg) was collected on 24 Oct 2003 at 45.50°N, 3.13°W, at 150 m depth; individuals of Scomber scombrus Linnaeus, 1758 were present in its stomach ( Quéro et al., 2004).

Figures

Figure 2. – Significant French ichthyological records for 2019. A: Tetronarce nobiliana, 699 mm TL, 25 Nov 2019 (© T. Richard); B: Gymnothorax unicolor, ~40 cm TL, 16 Mar 2019 (© S. Le Bris); C: Maulisia mauli, 95 mm TL, 25 Oct 2019 (© S.P. Iglésias); D: Salmo trutta, ~23 cm TL, 17 Jun 2019 (© L. Metral); E: Grammonus ater, ~6 cm TL, 24 Aug 2019 (© S. Le Bris).