Age and growth patterns in squid Berryteuthis magister and B. septemdentatus
https://doi.org/10.36038/2307-3497-2025-199-28-35
EDN: HDQUDR
Abstract
The purpose of the study was to reveal differences in age and growth patterns in two closely related species: Berryteuthis septemdentatus from the Japan Sea and schoolmaster gonate squid B. magister from the Bering Sea based on the analysis of age determining structures such as statoliths.
Methods included preparation and processing of statoliths (extraction, gluing and grinding) and counting increments (growth lines) followed by further statistical analysis of daily increments and obtaining characteristics of squids’ age and growth.
Results suggested that there were species-specific patterns in growth rates of these two squid species. It appeared that, at earlier ontogenetic stages, growth rates in B. septemdentatus are higher than in B. magister; however, at later ontogenetic stages, individuals of B. magister grow faster than B. septemdentatus.
Discussion on the revealed differences in growth patterns between these two morphologically and phylogenetically close species suggested that higher growth rates in B. septemdentatus at earlier ontogenetic stages might be related to larger size of ripe eggs and, henceforward, to larger size of newly hatched paralarvae. However, as the squid grow, growth rates in B. septemdentatus become slower than in B. magister presumably due to colder deepwater habitat in the Japan Sea for the former species compared to deep-sea areas occupied by the latter species.
Scientific novelty includes new information on growth rates and age in B. septemdentatus and its comparison with those in the schoolmaster gonate squid B. magister as revealed by the analysis of age-recording structures (statoliths), and the use of relatively large size range of B. septemdentatus with mantle length from 141 to 203 mm.
About the Authors
V. R. Zimina
Russian Federal Research Institute of Fisheries and Oceanography («VNIRO») ; M.V. Lomonosov Moscow State University («MSU»)
Russian Federation
Russian Federation
19, Okruzhnoy proezd, Moscow, 105187
1, build. 12, Leninskie Gory, Moscow, 119234
O. N. Katugin
Pacific branch of VNIRO («TINRO»)
Russian Federation
Russian Federation
4, per. Shevchenko, Vladivostok, 690091
References
1. Alexeyev D.O. 2020. Spatial biology of the schoolmaster gonate squid. Abstr. of Doc. of Science in Biology diss. Moscow: VNIRO. 49 p. (In Russ.).
2. Alexeyev D. O. 2022. Spatial and functional structure in populations of squid of the genus Berryteuthis in the Russian Far Eastern seas // Trudy VNIRO. V. 188. P. 13-48. (In Russ.).
3. Arkhipkin A.I., Bizikov V.A., Verkhunov A.V. 1996. Size and age structure, vertical distribution and possible migration routes of the Commander squid juveniles // Fishery aspects of biology of schoolmaster gonate squid and fishes of slope communities of the western Bering Sea. Moscow: VNIRO Publish. P. 145-148. (In Russ.).
4. Bizikov V.A., Filippova Yu.A. 1999. Russian cephalopod fishery has chances for revival // Rybnoe khozyaystvo. № . 3. P. 32- 36. (In Russ.).
5. Verkhunov A.V. 1996. Hydrological situation in August and October 1995 // Fishery aspects of biology of schoolmaster gonate squid and fishes of slope communities of the western Bering Sea. Moscow: VNIRO Publish. P. 25-37. (In Russ.).
6. Nesis K.N. 1982. Brief identification guide to cephalopods of the World Ocean. Moscow: Light and food industry. 360 p. (In Russ.).
7. Nigmatullin Ch.M., Laptikhovsky V. V., Sabirov R. M. 1996. Reproductive biology of the Commander squid // Fishery aspects of biology of schoolmaster gonate squid and fishes of slope communities of the western Bering Sea. Moscow: VNIRO Publish. P. 101-124. (In Russ.).
8. Rostov I.D., Yurasov G.I., Rudykh N.I., Moroz V.V., Dmitrieva E.V., Rostov V.I., Nabiullin A.A., Khrapchenkov F.F., Bunin V.M. 2001. Atlas of oceanography of the Bering and Japan Seas. Vladivostok: V.I. Il’ichev TOI FEO RAS. 106 p. (In Russ.).
9. Fedorets Yu.A. 2006. Commander squid Berryteuthis magister (Berry, 1913) from the Bering Sea and the Okhotsk Sea (distribution, biology, fishing). Abstr. PhD diss. in biology. Vladivostok: TINRO. 24 p. (In Russ.).
10. Shevtsov G.A. 1988 a. Instruction for fishing commander squid in the Kita-Yamato Bank of the Japan Sea. Vladivostok: TINRO Publish. 14 p. (In Russ.).
11. Shevtsov G.A. 1988 б. Commander squid (Berryteuthis magister) from the Kita-Yamato Bank in the economic zone of USSR in the Sea of Japan // Resources and the biological basis of rational use of commercial invertebrates. All-Union Conf. Vladivostok: TINRO Publish. P. 78-79. (In Russ.).
12. Alexeyev D.O., Katugin O.N., Bizikov V.A. 2022. Taxonomic status of squids of the genus Berryteuthis Naef, 1921 (Gonatidae, Oegopsida) inhabiting the Sea of Japan // Ruthenica, Russian Malacological Journal. V. 32. № 2. P. 53-59. DOI 10.35885/ruthenica.2022.32(2).1
13. Arkhipkin A.I., Bizikov V.A., Nesis K.N. 1996. Distribution, stock structure, and growth of the squid Berryteuthis magister (Berry, 1913) (Cephalopoda, Gonatidae) during summer and fall in the western Bering Sea // Fishery Bulletin. V. 94. P. 1-30.
14. Arkhipkin A.I., Bizikov V.A., Verkhunov A.V. 1998. Distribution and growth in juveniles of the squid Berryteuthis magister (Cephalopoda, Gonatidae) in the western Bering Sea // Sarsia. V. 83. № 1. P. 45-54. DOI 10.1080/00364827.1998.10413668
15. Arkhipkin A.I., Shcherbich Z.N. 2012. Thirty years’ progress in age determination of squid using statoliths // Journal of the Marine Biological Association of the United Kingdom. V. 92. № 6. P. 1389-1398. DOI 10.1017/S0025315411001585
16. Arkhipkin A. I. 1992. Reproductive system structure, development and function in cephalopods with a new general scale for maturity stages // Journal of Northwest Atlantic Fishery Science. V. 12. P. 63-74.
17. Katugin O.N. 2000. A new subspecies of the schoolmaster gonate squid, Berryteuthis magister (Cephalopoda: Gonatidae), from the Japan Sea // The Veliger. V. 43. № 1. P. 82-97.
18. Katugin, O. N. 2004. Squids of the family Gonatidae from the North Pacific Ocean and their genetic differentiation: controversial issues in their systematics and phylogeny // Ruthenica, Russian Malacological Journal. V. 14. № 1. P. 73- 87.
19. Katugin O.V., Shevtsov G.A., Zuev M.A., Didenko V.D., Kulik V.V., Vanin N. S. 2013. Berryteuthis magister, Schoolmaster Gonate squid // Advances in Squid Biology. Ecology and Fisheries. Part II – Oegopsid squids. New York: Nova Science Publishers. Р. 1-48.
20. Lu H.J, Ou Y.Z., Teng Y., Chen Z.Y., Chen X. 2022. Age, growth and population structure analyses of the Berryteuthis magister shevtsovi in the Japan Sea by statolith microstructure // Fishes. V. 7. № 5. P. 215. DOI 10.3390/fishes7050215
21. Roper C.F.E., Jorgensen E.M., Katugin O.N., Jereb P. 2010. Family Gonatidae Hoyle, 1886 // Cephalopods of the world: An annotated and illustrated catalogue of Cephalopod species known to date. V. 2. Myopsid and Oegopsid Squids. Rome: FAO. P. 200-222.
Review
For citations:
Zimina V.R., Katugin O.N. Age and growth patterns in squid Berryteuthis magister and B. septemdentatus. Trudy VNIRO. 2025;199:28-35. (In Russ.) https://doi.org/10.36038/2307-3497-2025-199-28-35. EDN: HDQUDR
Email this article 