Abstract

This article describes the unique database of zooplankton collected by the large Juday net in 1984–2013 in the Chukchi, Bering, Okhotsk, Japan seas and the North Pacific Ocean: the sources and extent of the information contained therein, its benefits and drawbacks, the first operating experience and prospects. The information in this database has already been used to quantify the inventory of marine biological resources and appraise the waters of the North Pacific. In particular, in 2016, five tabular reference books were created and printed containing the species composition, occurrence and abundance of zooplankton in the surveyed area. The data is aggregated by species, developmental stages, size fractions, regions, vertical layers of water, light and dark time of day, four seasons of the year and perennial periods. This information has recently been verified, corrected, translated into English and from text to digital format to increase its availability to the scientific community worldwide (Volvenko, 2021 https://doi.org/10.5281/zenodo.4448646). The substantial volume and high quality of the collated data, along with the information presented in reference books and previously published data on macrofauna and the nutrition of common fish and squid, will enable the next important steps to be taken to understand the Far Eastern seas and the Pacific – one of the most productive and economically important regions of the world ocean. The scope of application of this data is fundamental to the management of marine resources, aquaculture development, nature conservation, and assessment of the damage of various anthropogenic factors on nature.

Highlights

  • Since the end of the 1970s the TINRO has adhered to the ecosystem approach to the study and management of living aquatic resources, which involves the collation and analysis of data for all groups of animals, highlights the interconnections between them and the role of the climate and hydrological regime in the fluctuations of their numbers (May, 1984; Shuntov, 1988, 1995, 2010; Shuntov et al, 1997; Lapko, 2000; Bocharov, Shuntov, 2003; Reports, 2004; Dulepova, 2005; Misund, Skjoldal, 2005; The Ecosystem, 2008; Beamish, Rothschild, 2009; Bulatov, Kotyenyov, 2012; Shuntov, Temnykh, 2013)

  • In large-scale integrated marine expeditions all sorts of information about marine biological communities and their abiotic environment have been collated via this approach over the last 44 years in the North Pacific and adjacent Arctic

  • Three of them are devoted to the Far Eastern seas: the western part of the Bering Sea, the north-west of the Sea of Japan and the Sea of Okhotsk; one – the northwestern part of the Pacific Ocean

Read more

Summary

Introduction

Since the end of the 1970s the TINRO has adhered to the ecosystem approach to the study and management of living aquatic resources, which involves the collation and analysis of data for all groups of animals, highlights the interconnections between them and the role of the climate and hydrological regime in the fluctuations of their numbers (May, 1984; Shuntov, 1988, 1995, 2010; Shuntov et al, 1997; Lapko, 2000; Bocharov, Shuntov, 2003; Reports, 2004; Dulepova, 2005; Misund, Skjoldal, 2005; The Ecosystem, 2008; Beamish, Rothschild, 2009; Bulatov, Kotyenyov, 2012; Shuntov, Temnykh, 2013). For study the upper pelagic water layer additional plankton samples is collected in the 0-50 m. Other depths are sampled layer-by-layer to study the migration and of vertical distribution plankton. Research groups usually work in two shifts, so the data collection takes place both day and night in order to calculate the vertical diurnal migration of euphausiids, copepods and hyperiids, which descend during the day into the deeper layers beyond the epipelagic zone. Surveys are performed all year round, if possible, and annually across standard sampling grid. They regularly cover the entire exclusive economic zone (EEZ) of Russia and sometimes the adjacent waters (Volvenko, 2015a)

Methods
Results
Discussion
Conclusion

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.