Parablennius pilicornis (Cuvier, 1829)

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 : 178

Parablennius pilicornis (Cuvier, 1829)

Two Ringneck blennies, Blenniidae , were observed by S.P. Iglésias while scuba diving on 01 Sep 2019 close to the Pladen rocks in the Bay of La Forêt (47.8716°N, 3.9483°W,

Concarneau), at 4.7 m depth (at low tide). The fishes were observed on rocks surrounded by a maerl seabed. The individuals, about 7 cm TL, showed the typical immature color pattern with longitudinal black stripe along the body. A total of eight additional Ringneck blennies were observed by P. Thiriet, Q. Ternon and V. Danet, while scuba diving, on 09 Sep (n = 1, Fig. 5H ), on 13 Sep (n = 5) and on 17 Oct 2019 (n = 2), at Les Buharats in Saint-Malo Bay (48.6723°N, 2.1208°W, North Brittany). The individuals were observed in a subtidal rocky reef, at 7-17 m depth (tide corrected) on rocks covered by faunal-dominated circalittoral biocenoses. They were about 8 cm TL and showed the typical marbled brown colour pattern. The Ringneck blenny was first recorded in the southern Bay of Biscay, in French waters, in 1957 ( Bath, 1977). It was later considered as common in the Basque country ( De Casamajor, 2004). It was then record- ed in the northern Bay of Biscay, at Groix Island on 16 Oct 2009 ( Quéro et al., 2010). Numerous records were gathered in 2008 in northern Bay of Biscay and North Brittany in the English Channel where the species is now considered established ( Iglésias et al., 2020). The present record off Saint-Malo represents a northward geographic range expansion of the species in French waters and may be related to warming waters as a consequence of climate change.

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).