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Biological sampling at Port-en-Bessin fish market: assessing the diversity and size structure of squid and cuttlefish populations in the English Channel

Published online by Cambridge University Press:  02 April 2025

Anna Marcout Open the ORCID record for Anna Marcout [Opens in a new window] ,
Michaël Gras Open the ORCID record for Michaël Gras [Opens in a new window] ,
Eric Foucher  and
Jean-Paul Robin Open the ORCID record for Jean-Paul Robin [Opens in a new window]
Anna Marcout*
Affiliation:
Marine Ecosystems and oRganisms reSEArch Lab, University of Caen-Normandie, Caen, France
Michaël Gras
Affiliation:
European Commission, Joint Research Centre (JRC), Ispra, Italy
Eric Foucher
Affiliation:
Laboratoire Ressources Halieutiques, Ifremer, Port-en-Bessin, France
Jean-Paul Robin
Affiliation:
Marine Ecosystems and oRganisms reSEArch Lab, University of Caen-Normandie, Caen, France
*
Corresponding author: Anna Marcout; Email: anna.marcout@unicaen.fr
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Abstract

Monthly sampling of cephalopod at Port-en-Bessin fish market (Normandy, France) over a 30-year period, combined with commercial fishery statistics, provides essential insight into the exploitation patterns, composition and size frequencies of these resources. Port-en-Bessin cephalopod landings are shown to decrease which is consistent with the decline observed in the entire French fleet operating in the English Channel. Cuttlefish landings exhibit a bimodal length distribution which is expected for this 2-year life cycle (and two-cohort) population. Juveniles of the year are recruited from October (from 8 cm). By the end of their second year of life, cuttlefish reach their maximum size (on average about 22 cm in April–May) prior to dying following spawning. Cuttlefish average size of the second cohorts has decreased from 20 to 17 cm over the period 1996–2022. This seems to be a reduction in size rather than a change in the timing of catches. Squids are not segregated in commercial landings, and the protocol was developed to inform on the prevalence of Loligo forbesii and L. vulgaris in the catch. Both species have a 1-year life cycle with a 3-month offset (recruitment of L. forbesii occurs in June and L. vulgaris in September). Over the 30 years of data, an increase in L. vulgaris landings is observed, while L. forbesii landings have decreased. These findings, in line with climate change, consider biases such as fishermen behaviour determining landings geographical origin.

Keywords

cephalopodEnglish Channelfish market samplingfisheriesLoligo forbesiiLoligo vulgarisSepia officinalistemporal trends

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Type
Research Article
Information
Journal of the Marine Biological Association of the United Kingdom , Volume 105 , 2025 , e35
Copyright
Copyright © The Author(s), 2025. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom

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Footnotes

This article was originally published with an incorrect affiliation. The error has been corrected and the online HTML and PDF versions updated.

References

Andersen, KH, Farnsworth, KD, Thygesen, UH and Beyer, JE (2007) The evolutionary pressure from fishing on size at maturation of Baltic cod. Ecological Modelling 204, 246–252.CrossRefGoogle Scholar
Arkhipkin, AI, Hendrickson, LC, Payá, I, Pierce, GJ, Roa-Ureta, RH, Robin, J-P and Winter, A (2021) Stock assessment and management of cephalopods: advances and challenges for short-lived fishery resources. ICES Journal of Marine Science 78, 714–730.CrossRefGoogle Scholar
Arkhipkin, AI, Rodhouse, PG, Pierce, GJ, Sauer, W, Sakai, M, Allcock, L, Arguelles, J, Bower, JR, Castillo, G, Ceriola, L, Chen, C-S, Chen, X, Diaz-Santana, M, Downey, N, González, AF, Granados Amores, J, Green, CP, Guerra, A, Hendrickson, LC, Ibáñez, C, Ito, K, Jereb, P, Kato, Y, Katugin, ON, Kawano, M, Kidokoro, H, Kulik, VV, Laptikhovsky, VV, Lipinski, MR, Liu, B, Mariátegui, L, Marin, W, Medina, A, Miki, K, Miyahara, K, Moltschaniwskyj, N, Moustahfid, H, Nabhitabhata, J, Nanjo, N, Nigmatullin, CM, Ohtani, T, Pecl, G, Perez, JAA, Piatkowski, U, Saikliang, P, Salinas-Zavala, CA, Steer, M, Tian, Y, Ueta, Y, Vijai, D, Wakabayashi, T, Yamaguchi, T, Yamashiro, C, Yamashita, N and Zeidberg, LD (2015) World squid fisheries. Reviews in Fisheries Science & Aquaculture 23, 92–252.CrossRefGoogle Scholar
Barrett, CJ, Bensbai, J, Broadhurst, MK, Bustamante, P, Clark, R, Cooke, GM, Di Cosmo, A, Drerup, C, Escolar, O, Fernández-Álvarez, FA, Ganias, K, Hall, KC, Hanlon, RT, Hernández-Urcera, J, Hua, QQ, Lacoue-Labarthe, T, Lewis, J, Lishchenko, F, Maselli, V, Moustafid, H, Nakajima, N, O'Brien, C, Parkhouse, L, Pengelly, S, Pierce, JG, Ramírez, JG, Robin, JP, Sajikumar, KK, Smith, CL, Villanueva, R and Yến, DTH (2022) Cuttlefish conservation: a global review of methods to ameliorate unwanted fishing mortality and other anthropogenic threats to sustainability. ICES Journal of Marine Science 79, 2579–2596.CrossRefGoogle Scholar
Bastardie, F, Nielsen, JR, Andersen, BS and Eigaard, OR (2013) Integrating individual trip planning in energy efficiency-Building decision tree models for Danish fisheries. Fisheries Research 143, 119–130.CrossRefGoogle Scholar
Boucaud-Camou, E and Boismery, J (1991) The migrations of the cuttlefish (Sepia officinalis) in the English Channel. In Acta of the 1st International Symposium on the Cuttlefish Sepia. Université de Caen Publications Caen, pp. 179–189.Google Scholar
Boucaud-Camou, E, Koueta, N, Boismery, J and Medhioub, A (1991) The sexual cycle of Sepia officinalis from the Bay of Seine. In La Seiche, 1st International Symposium on the Cuttlefish Sepia. Caen: Centre de Publications de l'Université de Caen. pp. 141–151.Google Scholar
Boyle, PR and Pierce, GJ (1994) Fishery biology of northeast Atlantic squid: an overview. Fisheries Research 21, 1–15.CrossRefGoogle Scholar
Boyle, P and Rodhouse, P (2005) From Egg to Recruitment. Cephalopods: Ecology and Fisheries. Oxford, UK: Blackwell Science. Primera edición, pp. 146–160.CrossRefGoogle Scholar
Caddy, JF and Rodhouse, PG (1998) Cephalopod and groundfish landings: evidence for ecological change in global fisheries? Reviews in Fish Biology and Fisheries 8, 431–444.CrossRefGoogle Scholar
Challier, L, Dunn, MR and Robin, JP (2005) Trends in age-at-recruitment and juvenile growth of cuttlefish, Sepia officinalis, from the English Channel. ICES Journal of Marine Science 62, 1671–1682.CrossRefGoogle Scholar
Dauvin, JC (2019) The English Channel: La Manche. In World Seas: An Environmental Evaluation. Academic Press, pp. 153–188.CrossRefGoogle Scholar
Deevi, S (2016) R-package: modes.Google Scholar
Domingues, PM, Bettencourt, V and Guerra, Á (2006) Growth of Sepia officinalis in captivity and in nature.Google Scholar
Dunn, MR (1999) Aspects of the stock dynamics and exploitation of cuttlefish, Sepia officinalis (Linnaeus, 1758), in the English Channel. Fisheries Research 40, 277–293.CrossRefGoogle Scholar
Ezzedine-Najai, S, Ros, J and Guerra, A (1997) Tagging of the cuttlefish, Sepia officinalis L. (Cephalopoda: Decapoda), in the Gulf of Tunis. Scientia Marina 61, 59–65.Google Scholar
Forsythe, JW (2004) Accounting for the effect of temperature on squid growth in nature: from hypothesis to practice. Marine and Freshwater Research 55, 331–339.CrossRefGoogle Scholar
Forsythe, JW, Walsh, LS, Turk, PE and Lee, PG (2001) Impact of temperature on juvenile growth and age at first egg-laying of the Pacific reef squid Sepioteuthis lessoniana reared in captivity. Marine Biology 138, 103–112.CrossRefGoogle Scholar
Gi Jeon, (1982) Etude des populations de seiche (Sepia officinalis L.) du Golfe de Gascogne (Doctoral dissertation, These 3 cycle). University de Nantes.Google Scholar
Gras, M, Roel, BA, Coppin, F, Foucher, E and Robin, J-P (2014) A two-stage biomass model to assess the English Channel cuttlefish (Sepia officinalis L.) stock. ICES Journal of Marine Science 71, 2457–2468.CrossRefGoogle Scholar
Guerra, A and Castro, BG (1988) On the life cycle of Sepia officinalis (Cephalopoda, Sepioidea) in the ria de Vigo (NW Spain). Cahiers de Biologie Marine 29, 395–405.Google Scholar
Guerra, A and Rocha, F (1994) The life history of Loligo vulgaris and Loligo forbesi (Cephalopoda: Loliginidae) in Galician waters (NW Spain). Fisheries Research 21, 43–69.CrossRefGoogle Scholar
Hartigan, JA and Hartigan, PM (1985) The dip test of unimodality. The Annals of Statistics, 70–84.Google Scholar
Holme, NA (1974) The biology of Loligo Forbesi Steenstrup (Mollusca: Cephalopoda) in the Plymouth area. Journal of the Marine Biological Association 54, 481–503.CrossRefGoogle Scholar
Hunsicker, ME, Essington, TE, Watson, R and Sumaila, UR (2010) The contribution of cephalopods to global marine fisheries: can we have our squid and eat them too? Fish and Fisheries 11, 421–438.CrossRefGoogle Scholar
ICES (2018) Report of the Working Group on Cephalopod Fisheries and Life History (WGCEPH). ICES.Google Scholar
ICES (2020) Working group on cephalopod fisheries and life history (WGCEPH; outputs from 2019 meeting). ICES Scientific Reports 2, 46.Google Scholar
ICES (2023) Working group on cephalopod fisheries and life history (WGCEPH; outputs from 2022 meeting). ICES Scientific Reports 5, 1–163.Google Scholar
Ifremer (2020) Région Normandie. 2019. Activité des navires de pêche. Ifremer.Google Scholar
Ifremer. Système d'Informations Halieutiques (2024) Région Normandie. 2022. Activité des navires de pêche. Ref. Navires immatriculés dans les quartiers maritimes de Dieppe, Fécamp, Le Havre, Rouen, Caen et Cherbourg. Available at https://archimer.ifremer.fr/doc/00874/98590/Google Scholar
Jackson, GD (1997) Age, growth and maturation of the deepwater squid Moroteuthis ingens (Cephalopoda: Onychoteuthidae) in New Zealand waters. Polar Biology 17, 268–274.CrossRefGoogle Scholar
Jackson, GD and Moltschaniwskyj, NA (2002) Spatial and temporal variation in growth rates and maturity in the Indo–Pacific squid Sepioteuthis lessoniana (Cephalopoda: Loliginidae). Marine Biology 140, 747–754.Google Scholar
Jereb, P, Allcock, AL, Piatkowski, ELU, Hastie, LC and Pierce, GJ (2015) Cephalopod Biology and Fisheries in Europe: II. Species Accounts. ICES Cooperative Research Reports (CRR).Google Scholar
Jereb, P and Roper, CF (2010) Cephalopods of the World-An Annotated and Illustrated Catalogue of Cephalopod Species Known to Date. Vol 2. Myopsid and Oegopsid Squids (No. 2). Fao.Google Scholar
Laptikhovsky, V, Allcock, AL, Barnwall, L, Barrett, C, Cooke, G, Drerup, C, Firmin, C, Lozach, S, MacLeod, E and Oesterwind, D (2022) Spatial and temporal variability of spawning and nursery grounds of Loligo forbesii and Loligo vulgaris squids in ecoregions of Celtic Seas and Greater North Sea. ICES Journal of Marine Science 79, 1918–1930.CrossRefGoogle Scholar
Le Goff, R and Daguzan, J (1991) Growth and life cycles of the cuttlefish Sepia officinalis L. (Mollusca: Cephalopoda) in South Brittany (France). Bulletin of Marine Science 49, 341–348.Google Scholar
L'Hévéder, B, Speich, S, Ragueneau, O, Gohin, F and Bryère, P (2017) Observed and projected sea surface temperature seasonal changes in the Western English Channel from satellite data and CMIP5 multi-model ensemble. International Journal of Climatology 37, 2831–2849.CrossRefGoogle Scholar
Lishchenko, F, Perales-Raya, C, Barrett, C, Oesterwind, D, Power, AM, Larivain, A, Laptikhovsky, V, Karatza, A, Badouvas, N, Lishchenko, A and Pierce, GJ (2021) A review of recent studies on the life history and ecology of European cephalopods with emphasis on species with the greatest commercial fishery and culture potential. Fisheries Research 236, 105847.CrossRefGoogle Scholar
Lordan, C and Casey, J (1999) The first evidence of offshore spawning in the squid species Loligo forbesi. Journal of the Marine Biological Association of the United Kingdom 79, 379–381.CrossRefGoogle Scholar
Maechler, M (2015) Diptest: Hartigan's dip test Statistic for unimodality-corrected. R package version 0.75-7. See https://CRAN. R-project. org/package= diptest.Google Scholar
Marcout, A, Foucher, E, Pierce, GJ and Robin, JP (2024) Impact of environmental conditions on English Channel long-finned squid (Loligo spp.) recruitment strength and spatial location. Frontiers in Marine Science 11, 1433071.CrossRefGoogle Scholar
Medhioub, A (1986) Etude de la croissance et du cycle sexuel de la seiche (Sepia officinalis L.) des côtes normandes (Doctoral dissertation). ANRT.Google Scholar
Moreno, A, Pereira, J, Arvanitidis, C, Robin, JP, Koutsoubas, D and Perales-Raya, C (2002) Biological variation of Loligo vulgaris (Cephalopoda: Loliginidae) in the eastern Atlantic and Mediterranean. Bulletion of Marine Science 71, 515–534.Google Scholar
Moreno, A, Pierce, GJ, Azevedo, M, Pereira, J and Santos, AMP (2012) The effect of temperature on growth of early life stages of the common squid Loligo vulgaris. Journal of the Marine Biological Association of the United Kingdom 92, 1619–1628.CrossRefGoogle Scholar
Oesterwind, D, Barrett, CJ, Sell, AF, Núñez-Riboni, I, Kloppmann, M, Piatkowski, U and Laptikhovsky, V (2022) Climate change-related changes in cephalopod biodiversity on the North East Atlantic Shelf. Biodiversity and Conservation 31, 1491–1518.CrossRefGoogle Scholar
Ottersen, G, Hjermann, DØ and Stenseth, NC (2006) Changes in spawning stock structure strengthen the link between climate and recruitment in a heavily fished cod (Gadus morhua) stock. Fisheries Oceanography 15, 230–243.CrossRefGoogle Scholar
Pierce, GJ, Allcock, L, Bruno, I, Bustamante, P, Gonzalez, A, Guerra, Á, Jereb, P, Lefkaditou, E, Malham, S, Moreno, J, Pereira, J, Piatkowski, U, Rasero, M, Sanchez, P, Santos, M, Begona, M, Santurtun, M, Seixas, S, Sobrino, I and Villanueva, R (2010) Cephalopod Biology and Fisheries in Europe. ICES.Google Scholar
Poos, JJ, Bogaards, JA, Quirijns, FJ, Gillis, DM and Rijnsdorp, AD (2010) Individual quotas, fishing effort allocation, and over-quota discarding in mixed fisheries. ICES Journal of Marine Science 67, 323–333.CrossRefGoogle Scholar
Roa-Ureta, RH, Fernández-Rueda, MDP, Acuña, JL, Rivera, A, González-Gil, R and García-Flórez, L (2021) Estimation of the spawning stock and recruitment relationship of Octopus vulgaris in Asturias (Bay of Biscay) with generalized depletion models: implications for the applicability of MSY. ICES Journal of Marine Science 78, 2256–2270.CrossRefGoogle Scholar
Robin, JP and Boucaud-Camou, E (1993) Proportion of Squid Loligo forbesii and Loligo vulgaris in French Landings of the Channel Bottom Trawl Fishery: Sampling Scheme of the Port-en-Bessin Landings and Preliminary Results. International Council for the Exploration of the Sea.Google Scholar
Robin, JP and Boucaud-Camou, E (1995) Squid Catch Composition in the English Channel Bottom Trawl Fishery: Proportion of Loligo forbesii and Loligo vulgaris in the Landings and Length-Frequencies of Both Species During the 1993–1994 Period. ICES CM.Google Scholar
Rodhouse, PG, Pierce, GJ, Nichols, OC, Sauer, WH, Arkhipkin, AI, Laptikhovsky, VV, Lipiński, M, Ramos, JE, Gras, M, Kidokoro, H, Sadyasu, K, Pereira, J, Lefkaditou, E, Pita, C, Gasalla, M, Haimovici, M, Sakai, M and Downey, N (2014) Environmental effects on cephalopod population dynamics: implications for management of fisheries. Advances in Marine Biology 67, 99–233.CrossRefGoogle ScholarPubMed
Rodhouse, PG, Symon, C and Hatfield, EMC (1992) Early life cycle of cephalopods in relation to the major oceanographic features of the southwest Atlantic Ocean. Marine Ecology Progress Series. Oldendorf 89, 183–195.CrossRefGoogle Scholar
Rothschild, BJ (1986) Dynamics of marine fish populations.Google Scholar
Royer, J, Périès, P and Robin, JP (2002) Stock assessment of english channel loliginid squids: updated depletion methods and new analytical methods. ICES Journal of Marine Science 59, 445–457..CrossRefGoogle Scholar
Royer, J, Pierce, GJ, Foucher, E and Robin, JP (2006) The English Channel stock of Sepia officinalis: modelling variability in abundance and impact of the fishery. Fisheries Research 78, 96–106.CrossRefGoogle Scholar
Salman, A and Laptikhovsky, V (2002) First occurrence of egg masses of Loligo forbesii (Cephalopoda: Loliginidae) in deep waters of the Aegean Sea. Journal of the Marine Biological Association of the United Kingdom 82, 925–926.CrossRefGoogle Scholar
Ulrich, C, Le Gallic, B, Dunn, MR and Gascuel, D (2002) A multi-species multi-fleet bioeconomic simulation model for the English Channel artisanal fisheries. Fisheries Research 58, 379–401.CrossRefGoogle Scholar
Waluda, CM and Pierce, GJ (1998) Temporal and spatial patterns in the distribution of squid Loligo spp. in United Kingdom waters. African Journal of Marine Science 20.Google Scholar
Waluda, CM, Trathan, PN and Rodhouse, PG (1999) Influence of oceanographic variability on recruitment in the Illex argentinus (Cephalopoda: Ommastrephidae) fishery in the South Atlantic. Marine Ecology Progress Series 183, 159–167.CrossRefGoogle Scholar
Zhang, C, Mapes, BE and Soden, BJ (2003) Bimodality in tropical water vapour. Quarterly Journal of the Royal Meteorological Society 129, 2847–2866.CrossRefGoogle Scholar
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