Long-term dynamics of certain parameters of pacific herring Clupea pallasii (clupeidae) in the peter the great bay

Вдовин, А. Н.; Chernoivanova, L. A.

doi:10.1134/s0032945206010073

Cited by 8 publications

(4 citation statements)

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“…1 2012 IZMYATINSKII resources was recorded. Subsequently, however, the Pacific herring biomass increased in some of the years (1992, 1994, 1998, 2001, and 2003), but this happened mainly due to medium productive generations of the Peter the Great Gulf (Vdovin and Chernoivanova, 2006). On the whole, a trend towards a decrease in the Pacific herring biomass is traceable in the study area over the period from 1985 to 2006.…”

Section: Resultsmentioning

confidence: 78%

Temporal and spatial changes of fish biomass during the warm season in the Russian part of the elittoral of the Sea of Japan

Izmyatinskii¹

2012

J. Ichthyol.

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Total biomass of fish in the Russian elittoral zone of the Sea of Japan during the warm period, according to surveys performed from 1983 to 2006, was 475.6 thousand tons, or 8.8 t/km 2 . Relatively high val ues of specific biomass were recorded in the 1980s, and the maximum value (29.2 t/km 2 ) was recorded in 1986, reflecting the cooccurrence of dramatic surges in the Alaska pollock (Theragra chalcogramma) and the Pacific herring (Clupea pallasii). In the 1990s, the total biomass of fishes decreased by an order of magnitude, and over almost the entire decade remained approximately at the same level (4.5-6.7 t/km 2 ); after 2001, this parameter never reached higher values than 4.4 t/km 2 . The average annual density of fish biomass varied in different areas from 5.8 t/km 2 (northern Strait of Tartary) to 13.3 t/km 2 (southern Primorskii krai). The prin cipal factor determining the value of specific fish biomass in particular areas is the level of the Alaska pollock's resources. In the elittoral, the highest concentration of the absolute majority of dominant and subdominant species are confined to the range of depths from 50 to 100 m.

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Section: Resultsmentioning

confidence: 78%

Temporal and spatial changes of fish biomass during the warm season in the Russian part of the elittoral of the Sea of Japan

Izmyatinskii¹

2012

J. Ichthyol.

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“…"Monitoring" approach is more or less continuous observation based on standard methods of collection and analysis of initial information. Monitoring usually implies collection of a smaller amount of types of data (Pope et al, 2010) and is more often used for survey of dynamics of separate populations of fish (Quist, 2007;Vdovin & Chernoivanova, 2006;Anderson et al, 2008;Sguotti et al, 2019), rarer fish assamblages of water bodies of different types (Gido et al, 2000;Mercado-Silva et al, 2006;Orsi & Britton, 2014). Ultimately, both of these approaches serve one goal -assessment of the condition of the system, to what extent its structure and functioning pattern have changed.…”

Section: Methodsmentioning

confidence: 99%

Change in the state of an exploited fish population: From individual indicators to integral assessment

2020

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We adapted the approach used for the integral assessment of the status of ecosystems in order to assess population status. Classic theoretical concepts of fish population dynamics are the basis of this approach. The convolution of information about changes in several structural and functional characteristics into one integral index was performed using the analytical function of desirability. The index varied 0 to 1 and quantitatively characterizes the state of the population. This approach was tested on the example of the European grayling Thymallus thymallus (Linnaeus, 1758), inhabiting the Vym River (basin of the Northern Dvina River, North of the European part of Russia). The materials were collected during the environmental monitoring carried out by the Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences (IB FRC Komi SC UB RAS) in 2002, 2005–2019. The population parameters used in the calculations (relative abundance; average and maximum age of fish; the proportion of matured individuals in the 4+ age group; average specific growth rate of fish at the age of 6+; body weight of fish in the age group 6+) were characterized on the basis of the control net catches. Compared with the period 2005–2006, the value of the integral index in 2015–2018 decreased by almost two times. This indicates deterioration in the condition of the grayling group in the study area. There were no serious disturbances in the fish habitat in this area. The main hydrochemical and hydrobiological indicators have not changed significantly. The main reason for the observed changes is likely the significant increase in the impact of recreational anglers. The proposed integral index may be useful both for assessing the state of fish populations and for developing measures for the rational management of fish stocks.

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“…Pacific herring were chosen because they are of great ecological and economical value, but many populations are no longer a viable fishery resource due to overexploitation, predation pressure, and habitat degradation (Hershberger et al. , 2005; Vdovin and Chernoivanova, 2006; Chimura et al. , 2009).…”

Section: Introductionmentioning

confidence: 99%

“…In this study our objectives were to experimentally determine (i) what first feeding Pacific herring larvae consume when presented with a natural assemblage of prey, as well as (ii) the selectivity and (iii) the ingestion rates of the larvae on their prey. Pacific herring were chosen because they are of great ecological and economical value, but many populations are no longer a viable fishery resource due to overexploitation, predation pressure, and habitat degradation (Hershberger et al, 2005;Vdovin and Chernoivanova, 2006;Chimura et al, 2009). More generally this study attempts to clarify the planktonic food web dynamics between lower trophic levels (such as protists) and larval Pacific herring.…”

Section: Introductionmentioning

confidence: 99%

Feeding dynamics of larval Pacific herring (Clupea pallasi) on natural prey assemblages: the importance of protists

Friedenberg¹,

Bollens

Rollwagen‐Bollens

2012

Fisheries Oceanography

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The role of protists in the diet of larval Pacific herring (Clupea pallasi) was examined using a natural assemblage of microplankton (10-200 µm) in laboratory incubations in May and June of 2008. Available prey consisted of protists (diatoms, dinoflagellates, aloricate ciliates, and loricate ciliates) and metazoans (trochophores, bivalve larvae, rotifers, copepod nauplii, and gastropod larvae). We used a prey enumeration technique that included soft-bodied heterotrophic protists (aloricate ciliates and athecate dinoflagellates) in the diet. We observed significant consumption of aloricate ciliates, loricate ciliates, bivalve larvae, dinoflagellates, and 73-200 µm available prey. Clearance rates (ml larva -1 h -1 ) were used as a measure of prey selectivity. The herring larvae showed strong selection for bivalve larvae and 73-200 µm available prey. Protists were selected for at rates comparable to metazoans. Ingestion rates (µg C larva -1 h -1 ) showed that the majority of larval carbon intake was from diatoms and aloricate ciliates. The results of this study illustrate that there is a direct trophic link between larval iv herring and the microbial loop, and protists may comprise a substantial portion of the larval fish diet, possibly alleviating food limitation.

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Long-term dynamics of certain parameters of pacific herring Clupea pallasii (clupeidae) in the peter the great bay

Cited by 8 publications

References 0 publications

Temporal and spatial changes of fish biomass during the warm season in the Russian part of the elittoral of the Sea of Japan

Temporal and spatial changes of fish biomass during the warm season in the Russian part of the elittoral of the Sea of Japan

Change in the state of an exploited fish population: From individual indicators to integral assessment

Feeding dynamics of larval Pacific herring (Clupea pallasi) on natural prey assemblages: the importance of protists

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