Now showing items 1-20 of 4680

    • Every map lies - A geohistorical approach to wetland restoration: ancient maps and modern geospatial technologies for a source-to-sea perspective in the Pantanello Natural Park and surrounding designated areas

      Gaglioti, Martina (Self published, 2023)
      This study has been conceived after a field-based experience and developing the wider analysis through a geohistorical approach, according to the need to deepen the scientific knowledge of a portion of land characterized by a relevant habitat complexity and species diversity, despite its limited spatial extension. One of the main objectives of this study is to describe the changes in the land use, over approximately 150 years in an Italian agricultural landscape, in relation to changes in human population, livestock and wildlife species, to analyze the relationships between historical land use, current species diversity and upcoming uses of the natural resources within the area.
    • Сезонное распределение сельдей южной Балтики и факторы среды

      Fetter, M.E.; Davidyuk, A.P. (1986)
      Fischerei-Forschung. Fischereiliche Untersuchungen der DDR und der UdSSR in der Ostsee. Рыбохозяйственные исследования ГДР и СССР в бассейне Балтийского моря
      Based on biological and hydrological data from 1975, 1979-1982, the seasonal distribution patterns of juvenile and adult herring in the southern Baltic Sea have been identified in relation to environmental factors. During the wintering period, the distribution of herring is mainly determined by the depth of the oxygen-deficient zone and the temperature of the bottom water layer along the coastal slope. During the pre-spawning period, the distribution of herring aggregations is closely linked to the condition of the individuals' reproductive organs. During the feeding period, the main factor determining the distribution of herring is the distribution and composition of its food base. At this time, juvenile and adult herring are maximally separated, which is due to the nature of their feeding habits and the specific composition of zooplankton in shallow coastal and deep-sea areas.
    • Unexpected incomers in the Asterousia Biosphere Reserve: The shy swim of Torquigener flavimaculosus cubs along our boat line an the beached hints of Lagocephalus onshore

      Gaglioti, Martina (2023)
      This contribution is the outcome of a field-based observation occurred in the shallow waters of the Asterousia Biosphere Reserve on the southern coast of Creete Island. The occurrence of two IAS highlighted and confirmed the presence of Lessepsian immigrants in the area.
    • Технология консервов из мяса краба имитированного

      Шульгина, Л. В.; Солодова, Е. А.; Мурашкина, Г. А. (ФГБНУ "ВНИРО", 2023)
      Проведены исследования по получению консервов из имитированного мяса крабов. Для получения консервов использованы 2 варианта палочек «крабовых», отличающихся содержанием белков и углеводов. «Крабовые» палочки фасовали в стеклянные банки и стерилизовали по разработанным режимам. Для сравнения использовали натуральные консервы из мороженого мяса камчатского краба. Установлено, что «крабовые» палочки на основе фарша «сурими», содержащие животные белки около 13,0 %, и исключающие в своем составе растительные белки, могут быть использованы для получения консервов из имитированного мяса крабов. Органолептические характеристики этих продуктов наиболее близки к таковым натуральных консервов из мороженого мяса краба. «Крабовые» палочки, в состав которых входят растительные белки, имеющие низкое содержание животных белков и большое количество углеводов при высокотемпературной обработке утрачивают исходные свойства и снижают качество продукта.
    • Ocean oxygen: The role of the Ocean in the oxygen we breathe and the threat of deoxygenation

      Grégoire, Marilaure; Oschlies, Andreas; Canfield, Donald; Castro, Carmen; Ciglenečki, Irena; Croot, Peter; Salin, Karine; Schneider, Birgit; Serret, Pablo; Slomp, Caroline; et al. (European Marine Board, 2023)
      EMB Future Science Brief No. 10 highlights the most recent science on Ocean oxygen, including causes, impacts and mitigation strategies of Ocean oxygen loss, and discusses whether “every second breath we take comes from the Ocean”. It closes with key policy, management and research recommendations to address Ocean deoxygenation and communicate more accurately about the role of the Ocean in Earth’s oxygen. The sentence “every second breath you take comes from the Ocean” is commonly used in Ocean Literacy and science communication to highlight the importance of Ocean oxygen. However, despite its widespread use, it is often not phrased correctly. In contrast, there is little awareness about the threat of the global oxygen loss in the Ocean, called deoxygenation, particularly in comparison with other important stressors, such as Ocean acidification or increasing seawater temperatures. Deoxygenation is increasing in the coastal and open Ocean, primarily due to human-induced global warming and nutrient run-off from land, and projections show that the Ocean will continue losing oxygen as global warming continues. The consequences of oxygen loss in the Ocean are extensive and include decreased biodiversity, shifts in species distributions, displacement or reduction in fisheries resources, changes in biogeochemical cycling and mass mortalities. Low oxygen conditions also drive other chemical processes which produce greenhouse gases, toxic compounds and further degrade water quality. The degraded water quality directly affects marine ecosystems, but also indirectly impacts ecosystem services supporting local communities, regional economies and tourism. Although there are still gaps in our knowledge, we know enough to be very concerned about the consequences: the impacts might even be larger than from Ocean acidification or heat waves, and three out of the five global mass extinctions were linked to Ocean deoxygenation. The sense of urgency to improve Ocean health is reflected in the UN Decade of Ocean Science for Sustainable Development (Ocean Decade) and the EU Mission: Restore our Ocean and Waters (Mission Ocean), and tackling the loss of oxygen in the Ocean is critical to achieving the aims of these two initiatives.
    • Building Coastal Resilience in Europe

      Villasante, Sebastian; Richter, Kristin; Bailey, Jennifer L.; Blenckner, Thorsten; Farrell, Eugene J.; Mongruel, Remi C.; Timmermann, Karen; Bouma, Tjeerd J.; Melaku Canu, Donata; Chen, Margaret; et al. (European Marine Board, 2023)
      European coasts face multiple, interacting and cumulative pressures including those resulting from increasing greenhouse gas emissions (e.g. sea-level rise, Ocean warming, Ocean acidification, extreme events) and localised activities such as fishing, aquaculture, waste disposal and coastal urbanisation. These create a unique set of context-specific issues that need to be addressed holistically using a systems approach, considering the dynamics between both coastal societies and ecosystems as part of interconnected social-ecological systems. EMB Position Paper No. 27 ‘Building Coastal Resilience in Europe’ presents key policy and scientific recommendations on how to build coastal resilience and enhance capacity to cope with impacts from climate change and other coastal pressures.
    • Blue Carbon: Challenges and opportunities to mitigate the climate and biodiversity crises

      Gattuso, Jean-Pierre; Hicks, Natalie; Neukermans, Griet; Landschützer, Peter; Pörtner, Hans-Otto; Heymans, Sheila JJ; Heymans, Sheila JJ; Rodriguez Perez, Ana; Alexander, Britt; Muñiz Piniella, Ángel; et al. (European Marine Board, 2023)
      Climate change and biodiversity loss are two of humanity’s greatest challenges. Blue carbon, i.e. the carbon captured and stored by marine living organisms and ecosystems, has the potential to help mitigate both challenges, because marine ecosystems that are important for sequestering carbon often also harbour rich biodiversity. Expanding and protecting Blue Carbon ecosystems has therefore been proposed as a Nature-based Solution to complement climate change mitigation efforts on land and to protect and restore marine biodiversity. In addition, securing and rebuilding Blue Carbon ecosystems can stabilise livelihoods, protect coasts, and support other societal needs such as food provision from the Ocean. However, the effectiveness of Blue Carbon ecosystems as a Nature-based Solution depends on the available space and ecosystem productivity, which can be impacted by climate change. Moreover, the overall carbon sequestration potential of Blue Carbon ecosystems is low and their contribution to climate stabilisation will only be significant once greenhouse gas emissions are strongly limited. Therefore, a drastic reduction of greenhouse gas emissions to keep global warming close to 1.5°C above pre-industrial levels is essential to maintain the health and long-term functionality of Blue Carbon ecosystems as a Nature-based Solution. This document describes examples and benefits of Blue Carbon ecosystems, and discusses uncertainties and challenges for the conservation and restoration of Blue Carbon ecosystems as a climate change solution. It also highlights the wider role of the Ocean in mitigating climate change through the carbon cycle, and closes with key research and management recommendations.
    • Натуральные консервы из жирных видов рыб дальневосточных морей как продукция здорового питания.

      Шульгина, Л. В.; Павель, К. Г.; Якуш, Е. В.; Тихоокеанский филиал ФГБНУ "ВНИРО" ("ТИНРО") (ФГБНУ "ВНИРО", 2023)
      Изучены показатели качества липидов натуральных консервов из сардины иваси, скумбрии дальневосточной, сайры и сельди тихоокеанской. Результаты определения взаимосвязи между отдельными жирными кислотами и расчета пищевых индексов качества липидов показало, что натуральные рыбные консервы из жирных видов рыб дальневосточных морей способны проявлять антиатерогенный и антитромбогенный эффекты, нормализовать холестериновый обмен в организме человека и снижать скорость тромбообразования в кровеносных сосудах. Наиболее выраженными диетическими свойствами обладают консервы из сардины иваси и скумбрии дальневосточной. Рыбные консервы рекомендованы как специализированные продукты для диетического профилактического и лечебного питания
    • Solving the problem of optimizing fishing activities.

      Lisienko, S. V.; Ivanko, N. S. (2023)
      Vestnik of MSTU
      A model for optimal planning of fishing activities has been proposed. It includes the formation of a biological component (a set of fishing objects considered taking into account their distribution over fishing zones) and a technological component (a set of fishing vessels and fishing technologies). On the basis of these two components, the technological chain "field object – production vessel – production technology" is formed. For each type of fishing vessel, it is permissible to use a certain type (or several types) of fishing technologies that are directly related to fishing objects, their catch can be carried out only using a certain production technology. Particular attention in the model is given to the problem of determining the optimal quantitative composition of the production fleet. The optimization criterion is the minimization of the costs associated with the fishing activities of specialized vessels, provided that the specified volumes of catch are achieved. The costs are directly related to the types of vessels used, fuel costs depending on the vessel's home port and the time required for loading and unloading operations. In the optimization problem, estimates of the weighted average daily catch and fishing time are used to account for most of the costs associated with the extraction of aquatic biological resources. The optimization algorithm is considered on the example of the Commander squid (Berryteuthis magister) in the North Kuril zone. In the area under consideration, squid production is carried out using trawl technology. The main types of vessels engaged in squid harvesting are large-capacity and medium-capacity vessels.
    • Fish quality monitoring for sustainable product safety.

      Reznichenko, I. Yu.; Egushova, E. A.; Donchenko, T. А. (2023)
      Vestnik of MSTU
      To provide consumers with high-quality and safe products, to prevent the entry of low-quality and dangerous food products into the consumer market, monitoring programs are provided. The results of monitoring samples of frozen fish of various families and species for the period 2020–2022 have been given. Labeling, organoleptic indicators of fish samples have been analyzed for compliance with the requirements of regulatory documents. The mass fraction of glaze, the mass fraction of phosphates in terms of P2O5, the content of histamine, toxic elements: lead, cadmium, mercury, arsenic have been determined. Labeling deficiencies are revealed in 1.3 % of the samples. A small, inaccessible font (less than 9 points) makes it difficult for the consumer to obtain complete information about the product. An excess of the mass fraction of glaze on average 0.7–0.8 % in pike perch samples has been revealed. The actual values of the mass fraction of phosphates have not exceeded the maximum allowable limits. The lowest content of phosphates has been noted in samples of pike perch (from 2.3 to 2.0 g/kg), the highest in pink salmon (from 5.0 to 4.1 g/kg) and salmon (5.2–4.7 g/kg). The content of histamine in all samples has been within the normal range. The smallest amount of histamine has been found in samples of mackerel (from 18.0 to 11.0 mg/kg) and pollock (17.0–11.0 mg/kg), the largest in pink salmon (25.0–16.0 mg/kg) and herring (22.0–19.0 mg/kg). The concentration of heavy metals has not exceeded the maximum allowable values. The results obtained are of practical importance for manufacturers in the development of labeling that satisfies consumer demand for information about the product and for consumers in the formation of the diet.
    • Development of methodology for creating technologies for processing low-grade semi-finished products of fish oils and fatty waste.

      Petrov, B. F. (2023)
      Vestnik of MSTU
      The development of fish oil production in Russia requires solving a number of environmental issues. It is necessary to develop technologies for processing low-grade semi-finished products of fish oils and fat waste. Currently, this problem remains unresolved. In the course of the study, the physicochemical properties of fat-containing objects (semi-finished product of technical fish oil with acid number of more than 20 units; soap stock after fish oil refining; fatty foam mass after flotation treatment of industrial wastewater from fish oil production) have been determined and rational directions for their use have been established. It is noted that these objects contain lipids with a high degree of hydrolysis and unsaturation. The developed methodology for creating private technologies for processing technical fish oils and fatty wastes into target products for technical purposes makes it possible to obtain an oil-in-water dispersed system and a fatty acid concentrate from the objects of study. The resulting products can be used as a basis for the production of anti-adhesive, surface-active, film-forming and anti-friction technical reagents for various industries (including food industry).
    • Investigation of the biopotential of products of hydrolysis of waste from cutting the white-legged shrimp Penaeus vannamei.

      Mezenova, O. Ya.; Agafonova, S. V.; Romanenko, N. Yu.; Kalinina, N. R.; Volkov, V. V.; Merzel, J.-T. (2023)
      Vestnik of MSTU
      The relevance of studying the biopotential of shrimp waste and their hydrolysates is due to the need for complex processing of secondary raw materials of aquatic organisms to obtain useful products. At the fish processing plant Vichyunai-Rus LLC when manufacturing food products from white-legged shrimp, up to 60 % of the mass of waste (cephalothorax, shell) remains. This raw material contains valuable organic components, but is not processed. The paper proposes its complex processing with the production of hydrolysates in two ways – high-temperature and enzymatic. During thermohydrolysis in the aquatic environment, three fractions are formed from shrimp waste (fatty, water-soluble and water-insoluble). After separation, the water-soluble fraction was sublimated, and the water-insoluble fraction was dried by convection. The fat fraction was further purified by washing in warm water. The general chemical composition of shrimp waste and hydrolysis products has been studied. It has been shown that water-soluble hydrolysates are a good source of protein components (66.6–71.6 %). In comparative studies of the amino acid composition of water-soluble hydrolysates, the presence of all essential amino acids is established with minor differences between the samples. Both hydrolysates are dominated by alanine, arginine, glycine, isoleucine, lysine, aspartic acid, tyrosine, valine (3.3–6.4 g/100 g of protein). In terms of formol-titratable nitrogen in fermentolisates, alkalase ferments shrimp waste more actively than collagenase. The fatty acid composition of lipids isolated by thermohydrolysis from shrimp waste has been analyzed. Shrimp oil is characterized by a high content of polyunsaturated fatty acids (44.7 %) with a relatively low content of omega-3 family acids (10.7 %) and a high content of omega-6 (33.9 %) at a ratio of 1 : 3.2 (close to the physiologically recommended). The organoleptic characteristics of water-soluble and water-insoluble shrimp hydrolysates have been studied. Due to the content of valuable biologically active components in hydrolyzates, their use as food and feed additives – sources of active peptides, high-molecular proteins, minerals and chitinous components – is recommended.
    • The use of fermented minced fish with probiotics in the recipe composition of dry-cured sausages.

      Glukharev, A. Yu.; Barabashina, S. I.; Volchenko, V. I.; Zhivlyantseva, Ju. V.; Poteshkina, V. A. (2023)
      Vestnik of MSTU
      The paper analyzes the effect of using fermented minced fish (FMF) with the L. plantarum probiotic in the formulation of dry-cured sausages on the quality characteristics of the finished product in comparison with sausages based on unprocessed minced fish. The microbiological, physico-chemical, structural-mechanical and organoleptic properties of the product have been evaluated. The results have shown that dry-cured sausage samples with FMF had a higher content of probiotics (2,5×108 CFU/g) compared to the control sample (6,3×106 CFU/g), which allows a person to fully meet the daily requirement in probiotics with just through the use of 40 g of such a product. The use of FMF in the dry-cured fish sausages provides a safe pH value (5.21) and significant increase in total acidity (1.39 %) compared to the control sample (pH – 6.80 and total acidity – 0.45 %). It has been established that using FMF in the technology of dry-cured fish sausages can reduce the time of their manufacture by increasing the average rate of dehydration of the product. It has been determined that samples of dry-cured sausages with FMF have higher values of hardness and cutting force. A comprehensive assessment of the quality of sausages with FMF has shown good results – 76.85 % of the maximum possible level. Thus, the possibility of using FMF with L. plantarum in the manufacture of dry-cured sausages has been determined. The proposed method makes it possible to obtain a product with a high protein content (32.31 %), enriched with L. plantarum probiotics, having a low pH value and a peculiar sour-milk taste and aroma. Based on the results of the study, normative and technical documentation for this type of product has been developed and approved.
    • On the fifth anniversary of the scientific peer-reviewed journal “Aquatic Bioresources & Environment”

      Bragina, Tatyana; Mikhaylyuk, Ekaterina A.; Reshitko, E.E.; Savchuk, Elena A. (2023)
      Водные биоресурсы и среда обитания
      The scientific peer-reviewed journal “Aquatic Bioresources & Environtment” has been published since 2018 and functions as a discussion platform for researchers and practitioners of the vast fishery region (mainly the Southern Russia). In July 2023, the journal celebrated its fifth anniversary. The aim of this article is to review the notable milestones of the formation of the journal as a scientific publication from its first issue up to the present moment. Currently, the journal is included in the List of peer-reviewed scientific publications, in which the main scientific results of dissertations for the degree of Candidate of Science and for the degree of Doctor of Science should be published (List of the Higher Attestation Commission), and is abstracted in the International Information System for Aquatic Sciences and Fisheries Abstracts (ASFA) and the Scientific Electronic Library (eLIBRARY), as well as indexed in the Russian Science Citation Index (RSCI). Articles in the journal are assigned with Digital Object Identifiers (DOI), which are registered by the international agency Crossref; they are posted on the journal's website and added to RSCI and other databases.
    • Stock assessment of the marine fish species in the Black Sea (Russian waters) in 2021

      Shlyakhov, Vladislav; Piatinskii, Mikhail (2023)
      Водные биоресурсы и среда обитания
      Based on the available biological and fisheries data, stock status review for 18 units of the fish species inhabiting the Black Sea and the both Azov and Black Seas is presented. A modified version of the traditional approach to the harvest control rules for the aquatic bioresources of the Azov and Black Sea Fishery Basin is described for the case when they are assessed by the mathematical methods to estimate the current stock biomass and fishing mortality. For 11 stock units, analytical modeling including cohort, production and trend models has been applied. Based on the estimates of biomass and fishing mortality concerning biological reference points, in 2021, the status of six stock units of the marine fish species inhabiting the basin and exploited by the Russian fisheries was identified as increasing or stable (“Black Sea” stock units of the European sprat and European anchovy, “Crimean” stock unit of turbot, “Crimean and Caucasian” stock unit of red mullet, and “Black and Azov Seas” stock units of garfish and rays). Five fishery stock units (“Crimean and Caucasian” of mullets, picarel and Mediterranean horse mackerel, “Black and Azov Seas” of sand smelts, and “Caucasian” of turbot) have shown a decreasing trend in terms of abundance, and for the rest of the investigated fish stock units (“Mediterranean migrant” bluefish, Atlantic bonito and Atlantic mackerel, “Black Sea” whiting, so-iuy mullet and the other marine fish species, “Black and Azov Seas” spiny dogfish), the status has not been determined due to the absence of systematic biological and fishery data.
    • Fluctuating asymmetry of the head seismosensory canals in roach Rutilus rutilus (L.) from the middle rivers of Udmurtia with different levels of chemical pollution

      Kotegov, Boris (2023)
      Aquatic Bioresources & Environment
      In the middle rivers of the Udmurt Republic, fish were caught near the sampling stations for the state environmental monitoring. The fluctuating asymmetry (FA) of the pore number of the seismosensory canals in the dermal head bones of the roach, Rutilus rutilus (L.), which prevailed in the catches, was estimated using osteological analysis. Its indicators in the roach individuals caught in the different river sections have been collated with the values of specific combinatorial water pollution index (SCWPI) of the examined sections and with the average concentrations of some pollutants in water in late spring and early summer for the several years preceding the years of catching. A statistically significant trend for the increase in the FA variance (Sas2), calculated on the basis of the total number of pores in the head seismosensory system of the roach, with the increase in the SCWPI and the content of some anions (chlorides, nitrites, nitrates) in the river water of its habitats has been identified. The highest Sas2 was observed in the roach individuals caught in the Izh River dowstream from Izhevsk in the environment, severely polluted by municipal wastewater, while the lowest one was recorded in the Kilmez River, the least polluted by wastewaters. No significant relationships between the FA indicators in this fish species and the content of heavy metals or other pollutants in the middle rivers of Udmurtia have been revealed. These results are considered to be attributable to a decrease in stability of morphogenesis in the fish organisms that developed under non-optimal (stressful) hydrochemical conditions.
    • Characterization of the beluga breeding practices at the Don Sturgeon Hatchery

      Vorobieva, O.A.; Gorbenko, E.V.; Sergeeva, S.G.; Pavlyuk, A.A.; Khorosheltseva, V.N. (2023)
      Водные биоресурсы и среда обитания
      The study conducted in 2022 has identified a lack of consistency in the results of the beluga artificial reproduction at the Don Sturgeon Hatchery (DSH). To obtain eggs, mostly the females born in 2001–2004 were used, out of which 31 females at age 18 reached their first maturity and one female at age 21 was a repeat spawner. The majority of first-spawning females produced eggs of low quality. During incubation, there was a substantial loss of fertilized eggs, and various anomalies of embryonic development were observed, which necessitated termination of the incubation of such eggs. The yield of one-day larvae from the eggs obtained from the first-spawning females and set for incubation was low, around 12 %. One of the reasons for the increased mortality rates and development anomalies in the larvae was low quality of the oocytes in the first-spawning individuals. A second-spawning female has shown satisfactory results; the fertilization rate was in line with the standard values, and no more than 17 % of the eggs manifested embryonic anomalies during their incubation. The yield of one-day larvae was 53.3 %. In total, 799 thousand one-day beluga larvae were obtained. The analysis of the cultivation practices at the Don Sturgeon Hatchery made it possible to identify the bottleneck points and critical junctures at some stages of the biotechnological process, as well as to give recommendations on improvement of the hatchery operation. An important prerequisite for obtaining good results is the physiological adequacy of beluga females, which is based, for the most part, on the living environment and feeding quality of the breeders and their replacement in the broodstock.
    • Hydrobiological communities of the middle reaches of the Lena River

      Sidorova, Lena I.; Gorokhova, Elena S.; Kolodeznikova, Yorinda N. (2023)
      Водные биоресурсы и среда обитания
      The investigated site is located within the area of the Yakutsk Urban District and subjected to a high anthropogenic load. The construction of a bridge over the Lena River at its middle reaches is crucial for transport accessibility but will have a negative impact on aquatic bioresources and their habitat. Previously, this section of the river has not been studied, so the results will be indicative of the current state of aquatic biological resources and their habitat. This factor determined the aim of this study: the status assessment of the hydrobionts inhabiting a localized area in the middle reaches of the Lena River. The hydrochemical analysis of water samples has been carried out in the laboratory of the Republican Center for Information, Analysis and Environmental Monitoring (State Budgetary Institution “RIATSEM”); collection and laboratory processing of zooplankton and zoobenthos samples have been conducted according to generally accepted methods. The hydrochemical composition and dissolved gases of the aquatic environment in the localized section of the Middle Lena River in the vicinity of the bridge crossing are favorable for the development of organic life. Zooplankton is represented by 54 species, more than a half of which is comprised by rotifers (52 %). The average biomass of zooplankton in the spring and summer seasons was 1.135 g/m3; in the autumn and winter seasons it was 0.057 g/m3, and the average annual value was 0.238 g/m3. Crustaceans have the highest share in the biomass, and rotifers are the most abundant. Zoobenthic organisms are represented by 9 groups; oligochaetes and chironomid larvae prevail throughout the year. The average biomass of the zoobenthos in the area along the shore was 37.41 g/m2; in the auxiliary streams it was 174.84 g/m2, and in the main course it was 3.52 g/m2. Following the results of this study, the qualitative and quantitative characteristics of the invertebrates have been found to be indicative of a favorable state of their habitat.
    • Long-term variability of oceanic zooplankton biomass

      Piontkovskiy, Sergey A.; Minsky, Ivan; Мегер, Яков (2023)
      Водные биоресурсы и среда обитания
      Numerous scientific publications are dedicated to the analysis of long-term variability of zooplankton biomass in oceanic and neritic zones of the World Ocean. The number of these publications keeps growing with the availability of new data. Relevance of this research can be attributed to the crucial role of zooplankton biomass in the spatio-temporal and trophic structure of aquatic ecosystems. Interannual fluctuations of zooplankton biomass affect the catch volumes of small pelagic fish. This research is aimed at identification of statistically valid long-term trends of the World Ocean zooplankton biomass, which involves the analysis of the data from databases and published articles describing such variability. Regional and international databases (namely COPEPOD, HOT, JGOFS, ODATE and others), which are available in the form of CDs, archived materials, and online, have been used. For the time series of the biomass across 21 areas of the World Ocean (Pacific, Indian, Atlantic Oceans and internal seas), the regression analysis has been conducted, which made it possible to estimate the parameters of linear monotonic trends. Based on bivariate spatial autocorrelation functions, the areas within which the trends are statistically homogeneous have been identified. A comparative study of long-term variability of zooplankton biomass, phytoplankton biomass, primary production, and the total live biomass of the pelagic World Ocean is presented. It is shown that the spatial distribution of positive, negative and neutral trends of zooplankton biomass on the World Ocean scale is heterogeneous. The negative monotonic trends of zooplankton biomass are found to be prevailing (in 1980–2010s); the regression parameters describing them are presented.