Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра最新文献

{"title":"Impact of the water structure in Peter the Great Bay (Japan Sea) on seasonal migrations of sandfish <i>Arctoscopus japonicus</i>","authors":"Yu. I. Zuenko, V. V. Panchenko","doi":"10.26428/1606-9919-2023-203-650-667","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-650-667","url":null,"abstract":"On the background of water structure, general patterns of the sandfish Arctoscopus japonicus distribution in Peter the Great Bay are determined on the data of bottom trawl surveys in spring, summer and fall seasons. When the larval stage is finished, the underyearlings of sandfish appear in the trawl catches since July. Depth of their catches by bottom trawl in July-August is 23–60 m, under the temperature of 8–16 о С. Localization of the catches at the upper benthic front corresponds to their pelagic spreading with concentration on the seasonal thermo-pycnocline, so the belts of high catches by bottom trawl are located along the line of the thermocline contact with the bottom. They convert to bottom dwelling in fall season, being concentrated below the benthic front and shifting deeper gradually with the front. The adults dwell at the bottom, permanently in the subsurface waters. Their feeding starts near the coast in May-June when they aggregate below the upper benthic front, avoiding the remnants of the cold Bottom Shelf water mass. Under thickening of the warm surface layer in July-September, they retreat deeper and spread widely at the shelf bottom within the area occupied by the Subsurface Shelf water. Pre-spawning aggregations of adult sandfish are formed at the shelf edge and upper continental slope in October, whereas the non-spawning fish stay in this month on the shelf together with the underyearlings. The adults migrate to the coastal zone in November for spawning on seaweeds. The southern part of the bay is presumably more favorable for the spawning of sandfish, as the underyearlings are absent in its northern part in summer. The sandfish adults wintering is available outside the bay, so the southward migration is supposed in late autumn and the backward migration in spring.","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"35 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136113218","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Сommunities of macrozoobenthos on soft sediments in the coastal areas of Peter the Great Bay near Vladivostok (Japan Sea) and their ecological status","authors":"A. V. Moshchenko","doi":"10.26428/1606-9919-2023-203-618-638","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-618-638","url":null,"abstract":"At least 16 communities of macrozoobenthos are determined by modern statistical methods on soft sediments in the coastal areas with the depth of ≥ 5 m of Peter the Great Bay at Vladivostok surveyed in 2001–2019. They were: I. Scoletoma spp. + Sigambra bassi; II. Scoletoma spp. + Ophiura sarsii; III. Philine orientalis + Macoma sp.; IV. Aphelochaeta pacifica; V. A. pacifica + Capitella capitata; VI. O. sarsii + Macoma scarlatoi; VII. O. sarsii + Scoletoma spp. + Scoloplos armiger + Ennucula tenuis; VIII. Phoronopsis harmeri; IX. Maldane sarsi; X. A. pacifica + Dipolydora cardalia; XI. Scoletoma spp.; XII. Praxillella gracilis + Pelonaia corrugata, XIII O. sarsii + Acila insignis, XIV Scoletoma spp. + O. sarsii + M. sarsi; XV. Scoletoma spp. + M. scarlatoi, and XVI. A. pacifica. Their differentiation was determined by such environmental imperatives as the level of chemical pollution, eutrophication, and impact of terrigenous water discharge. By biotic indices (AMBI, M-AMBI, TPFbio), the most damaged and environmentally disturbed communities were IV, V, and XVI inhabited the Golden Horn Bay and Diomid Inlet. The communities of the East Bosphorus Strait (III, VI) have higher ecological status that increases even more in the Amur and Ussuri Bays (communities I, II, VII, XII, XIII, XV, XIV), except of the northern tips of both bays (IX, XI) and the eastern part of the Amur Bay (VIII, X). With such bioindicative approach, ecological status of the communities is described more concisely and visually than with indices of species richness, diversity, or W-statistics.","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"39 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208961","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Production of biodiesel from fat of secondary crab materials","authors":"O. Y. Mezenova, S. N. Maksimova","doi":"10.26428/1606-9919-2023-203-686-694","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-686-694","url":null,"abstract":"Production of biodiesel from the fat-containing entrails of king crab is investigated. These secondary raw materials are massively disposed (released into the sea) after separation of limbs. Routine technologies of the biodiesel production from vegetable and fish oils are used. The fatty acid composition of the fat is analyzed and the acid and peroxide numbers are determined. A high content of PUFAs (42.5 %) is detected, including the omega-3 (30.6 %) and omega-6 (12.3 %) fatty acids. High acid number (5.5 mg KOH per g fat) and peroxide number (85.6 mmol of active oxygen per g fat) of the crab fat do not meet the requirements for edible fish oils. The biodiesel in the form of fatty acid ethyl esters was produced from the crab fat with three indicators (NaOH, KOH, and H2SO4). Reactions with alkali did not give positive results due to formation of large amounts of soap. The best yield of esters was obtained in the experiment with sulfuric acid: 52.2 g of biodiesel was produced from 50.0 g of fat. Mechanisms of the reaction are explained and mass balances of the process are presented. Kinematic viscosity, total contamination, and acid number of biodiesel (4.96 mm2/s, 8 mg/kg, 0.35 mg KOH/g, respectively) meet the requirements of the national standard GOST R 53605-2009 (EN 14214:2003).","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"29 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136063327","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Action of cabbeling-anticabbeling effect in formation of the halocline in estuaries on example of the Razdolnaya River (Peter the Great Bay, Japan Sea)","authors":"T. R. Kilmatov, N. I. Rudykh","doi":"10.26428/1606-9919-2023-203-668-675","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-668-675","url":null,"abstract":"Nonlinearity effect of the seawater density equation for mixing of waters with different salinity is considered for a case of the halocline formation in estuaries. Depending on salinity, density of the mixture can be higher (at low salinity) or lower (at high salinity) than the arithmetic mean density of the two components, so an effect of compaction during mixing (cabbeling) is observed in the upper part of halocline with lower salinity, whereas an effect of decompaction during mixing (anticabbeling) occurs in its lower part with higher salinity. The salinity value at the point of cabbeling change to anticabbeling is calculated that depends on average temperature of the mixed waters. In the real halocline (estuary of the Razdolnaya/Suifen River flowing into Peter the Great Bay, Japan Sea), the highest vertical gradient of salinity is observed along the isohaline, which value changes depending on temperature. In summer, when the water temperature in the estuary is about 22 oC, the maximum gradient is observed at the isohaline 10 psu, while in winter, when the temperature drops to 1 oC, the maximum gradient shifts to the isohaline 18 psu. These isohaline values correspond to the salinity values for the point of cabbeling change to anticabbeling. The cabbeling effect above this level promotes sinking of water, but the anticabbeling effect below this level promotes rising of water. This encountering convergent motion is an additional mechanism of the halocline self-sustaining in sharp state.","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136063993","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Using fermented mixture of macrophytes in the technology of compound feed for industrial cultivation of juvenile sea cucumber <i>Apostichopus japonicus</i>","authors":"I. A. Kadnikova, N. M. Aminina","doi":"10.26428/1606-9919-2023-203-676-685","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-676-685","url":null,"abstract":"Enzymatic hydrolysis of seaweed and seagrass (anfeltia Ahnfeltia tobuchiensis, laminaria Saccharina japonica, and eelgrass Zostera marina) is investigated. The enzyme preparation Viskoferm was the most effective for the mixture of these macrophytes, with high content of laminaria and eelgrass, under conditions of temperature 65 оC and pH 6.0. The hydrolysis in 16 hours reduced content of high-molecular polysaccharides and increased the portion of easily hydrolysable carbohydrates. Feeding of the sea cucumber juveniles by compound feeds with this fermented mixture of macrophytes had a positive effect on their physiological state; the food was easily digested by the animals and provided good gains. The average daily weight gain of juvenile sea cucumber in hatchery conditions had increased by 1.2 times in case of using the starter compound feed and by 1.5 times — for breeding with the productional compound feed.","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"54 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136062689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Evaluation of quality indices for functional products from fish enriched with selenium in conditions of aquaculture","authors":"M. V Sytova, A. V. Zhigin, Yu. I. Yesavkin, S. A. Grikshas, A. V. Petrov","doi":"10.26428/1606-9919-2023-203-695-709","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-695-709","url":null,"abstract":"Scientific and practical aspects are considered for development of functional nutrition products from fish raw materials after lifetime enrichment of the fish muscle tissue with selenium. Size-weight composition is investigated for rainbow golden trout grown in aquaculture, minerals and fatty acids content is determined for hot-smoked products of this species, and quality indicators and nutritional value are evaluated for both raw materials and the products to examine possibility of the enrichment with selenium by adding a selenium-containing preparation to fish feeds and to estimate effect of such feeding on commercial, nutritional and consumer properties of the products. The fish from the experimental group fed by the feeds with preparation Kormogran Selenium-3 had more valuable mineral and fatty acid composition of meat, higher yield of edible parts, and better organoleptic properties of smoked products in comparison with the control group. There is concluded that the lifetime enrichment of the trout tissues with selenium in aquaculture conditions is an effective technology for producing high-quality seafood for functional nutrition.","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"2013 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136062684","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biryulin Gavriil Mikhailovich — oceanologist and writer","authors":"G. V. Khen","doi":"10.26428/1606-9919-2023-203-722-743","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-722-743","url":null,"abstract":"Biography of Gavriil Mikhailovich Biryulin, a well-known oceanographer in scientific community and a writer popular in his time among fans of science fiction. His scientific and writing activity is described in details, as well as the life and scientific achievements of his family members who worked or trained in TINRO. His wife Lyudmila Viktorovna Mikulich was an ichthyologist and university lecturer, his daughter Maria Gavrilovna Biryulina was an ichthyologist and paleontologist, and his stepson Lev Petrovich Yakunin was an oceanographer and head of the Oceanography department at the Far-Eastern University.","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"50 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136063079","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Early spring testing of environments quality in the Novik Bay (Russky Island, Peter the Great Bay, Japan Sea) in April, 2023","authors":"N. K. Khristoforova, A. Yu. Lazaryuk, T. V. Boychenko, A. A. Emelyanov","doi":"10.26428/1606-9919-2023-203-639-649","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-639-649","url":null,"abstract":"Oceanographic and ecological properties were measured in the Novik Bay of Russky Island (Japan Sea) in early spring (April) of 2023, the indicating groups of microorganisms were examined. Good ecological state of the bay waters was detected. Stable density stratification was already formed, with the water temperature range from 2.3oС at the bottom to 10.0oС on the sea surface and salinity from 33.6 to 31.1, respectively. Dissolved oxygen content was high in the bottom layer (9.6–10.8 mg/L). In the surface layer, the oxygen content was lower, as well as chlorophyll a concentration. Abundance of the colony-forming heterotrophic microorganisms was rather low, so the waters of the bay were characterized as oligosaprobic and pure that indicated accumulation of easily accessible organic matter (accumulation predominated over destruction), apparently due to development of production processes. Some exceptions with zero balance between the production and destruction were found in the Trud Inlet, in the inlet of Sports Club, and at Podnozhye village. Bacteria of the sanitary-indicative group were recorded in small quantities at two stations where they indicated biological and fecal pollution of the water. Microorganisms growing on media with crude oil were observed everywhere, although their number was not high, so the waters of the Novik Bay were identified as low-polluted, in general. However, high abundance of phenol-resistant microorganisms at most of the stations was a signal of significant pollution by phenols, that could have both natural and anthropogenic sources. Metal-resistant microorganisms were not abundant in the surface layer that showed the minimal level of technogenic pressure. Their dominant group was Ni-resistant heterotrophs associated with combustion of hydrocarbon fuel.","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"245 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136062851","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interannual variability in thermal state of the upper mixed layer in the Bering Sea in winter","authors":"V. A. Luchin","doi":"10.26428/1606-9919-2023-203-601-617","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-601-617","url":null,"abstract":"Year-to-year variations of temperature in the upper mixed layer are considered for the ice-free waters of the Bering Sea in cold season (from December to March) using all data of the deep-sea oceanographic observations available to date (12,430 stations for the period from 1943 to 2022). Series of annual mean fields of the mixed layer temperature in December-March were decomposed by applying the empirical orthogonal function (EOF); dynamics of the first two components of decomposition (described in sum 50.4 % of the initial fields variability) are analyzed. The first component (32.4 % of variation) indicates synchronous oscillations over the entire sea area with the maximum contribution at the continental slope. The second component (18.0 % of variance) reflects opposite oscillations in two vast regions of the sea located along the continental slope from Cape Navarin to Alaska Peninsula and in the western, central and southern parts of the deep basin. The following statistically significant periodic oscillations are revealed by spectral analysis: quasi-biennial and those with periods of 4, 7, and 17–20 year for the 1st EOF and quasi-biennial and those with periods of 3 and 4 year for the 2nd EOF. A statistically significant linear trend to warming is detected for the time coefficient of the 1st EOF in the period of 1958–2022. Approximation of this coefficient dynamics with 6-degree polynomial function (polynomial trend) shows a tendencies to the mixed layer cooling in winters of 1969–1972 and 1992–2004 but the opposite tendencies to warming in 1973–1991 and 2005–2022. Variations of time coefficient for the 2nd EOF correspond to opposite tendencies in the areas with positive and negative values of this EOF. For the period from 1958 to 2022, winters in the Bering Sea are classified by the mixed layer temperature, taking into account the contribution of the 1st EOF only, as «warm» (1958, 1959, 1963, 1964, 1966, 1979, 1982, 1985, 1987, 1997, 2001, 2003, 2004, 2015–2018, 2020, and 2022), «normal» (1960–1962, 1965, 1967, 1968, 1970, 1971, 1974, 1978, 1980, 1981, 1983, 1986, 1989–1994, 1996, 1998, 2005–2007, 2011, 2013, 2014, 2019, and 2021), «cold» (1969, 1972, 1973, 1975–1977, 1984, 1988, 1995, 1999, 2000, 2002, 2008, and 2010), and extremely cold (2009 and 2012).","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"34 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Grouping one-degree trapezoids into biostatistical areas on example of the Okhotsk Sea","authors":"A. F. Volkov","doi":"10.26428/1606-9919-2023-203-710-721","DOIUrl":"https://doi.org/10.26428/1606-9919-2023-203-710-721","url":null,"abstract":"A method for grouping one-degree trapezoids into biostatistical areas of any size is proposed. For this purpose, all stations of survey are marked by the number of trapezoid, its area and central coordinates. Then the stations are sorted by the trapezoid numbers; their biological parameters (biomass, abundance, etc.). The mean values are integral parameters with the weights proportional to size of trapezoids — they can be easily grouped into small or large areas of any shape, depending on research tasks.","PeriodicalId":491504,"journal":{"name":"Известия Тихоокеанского научно-исследовательского рыбохозяйственного центра","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136208966","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}