Differences in temperature conditions and somatic growth rate of larval and early juvenile spring-spawned herring from the Vistula Lagoon, Baltic Sea manifested in the otolith to fish size relationship

Somatic growth rate of pond-reared larval and juvenile striped bass, Morone saxatilis, influenced the relationship between otolith size and fish size. Slower growing groups of individuals had larger and heavier otoliths, relative to fish length, than did faster growing groups. Within each growth group, otolith and fish size were highly correlated. Daily increment formation was validated from 10 to 51 d after hatch. Significant interaction occurred between age and fish size effects on otolith size. We propose that otolith growth occurs by two interacting processes. Otoliths grow daily in an incremental manner which is independent of somatic growth. Growth also proceeds continuously within each daily cycle of increment deposition, probably in some proportion to daily somatic growth. Corollaries to the hypotheses are (1) somatic growth rate can influence the otolith–fish size relationship, (2) intraspecific variation in otolith scaling might be used to predict past differences in somatic growth rate, and (3) there is a biological rationale for the use of otolith size and fish size as predictors in age estimation.

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Effect of age, growth rate, and ontogeny on the otolith size – fish size relationship in bluefish, Pomatomus saltatrix, and the implications for back-calculation of size in fish early life history stages

Canadian Journal of Fisheries and Aquatic Sciences ◽

10.1139/f95-783 ◽

1995 ◽

Vol 52 (9) ◽

pp. 1909-1922 ◽

Cited By ~ 83

Author(s):

Jonathan A. Hare ◽

Robert K. Cowen

Keyword(s):

Growth Rate ◽

Relative Size ◽

Somatic Growth ◽

Early Life History ◽

Pomatomus Saltatrix ◽

Fish Size ◽

Life History Stages ◽

Size Relationship ◽

Back Calculation ◽

Otolith Size

The otolith size – fish size relationship was examined in field-collected larval and pelagic juvenile bluefish, Pomatomus saltatrix. The purpose was to evaluate the central assumption of proportional back-calculation techniques, namely that otolith and somatic growth are in constant proportion. Age-independent variability was found between otolith size and fish size that differed between ontogenetic stages. Stage-specific growth rate effects were also identified. Finally, the otolith size – fish size relationship changed at certain ontogenetic stage transitions. These effects, as well as others that have been found, are discussed with regard to the assumption of constant proportionality between otolith growth and fish growth. In light of this discussion, the overall validity of constant proportionality becomes suspect when applied to the early life history stages of fishes. Future work should take a longitudinal approach to the analysis of the relationship between otolith growth and somatic growth. In addition, regression and proportional methods should be modified to account for growth rate and ontogenetic effects. Finally, a relative size approach is presented that is appropriate in situations that require only relative measures of fish size. This relative size approach has several benefits and these are discussed in relation to other back-calculation procedures.

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Individual variability in the settlement of juvenile green turtles in the western South Atlantic Ocean: relevance of currents and somatic growth rate

Marine Ecology Progress Series ◽

10.3354/meps12909 ◽

2019 ◽

Vol 614 ◽

pp. 173-182 ◽

Cited By ~ 2

Author(s):

P Campos ◽

L Cardona

Keyword(s):

Growth Rate ◽

Atlantic Ocean ◽

Somatic Growth ◽

Individual Variability ◽

South Atlantic ◽

South Atlantic Ocean ◽

Somatic Growth Rate ◽

Green Turtles

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SEDIMENT BALANCE OF THE VISTULA LAGOON

Proceedings of International Conference "Managinag risks to coastal regions and communities in a changinag world" (EMECS'11 - SeaCoasts XXVI) ◽

10.21610/conferencearticle_58b43153db8ae ◽

2017 ◽

Author(s):

Vladimir Chechko ◽

Boris Chubarenko ◽

Boris Chubarenko

Keyword(s):

Baltic Sea ◽

Field Measurements ◽

Water Volume ◽

Critical Element ◽

Vistula Lagoon ◽

The Baltic Sea ◽

Direct Measurements ◽

Biogenic Components ◽

The Baltic ◽

The Vistula Lagoon

Vistula Lagoon is the second largest lagoon in the Baltic Sea with maximum depth 5.2 m and average depth 2.7 m. Water volume and area are 2.3 km3 and 838 km2. Lagoon is connected with the Baltic Sea by single inlet 400 m wide and 10-12 m deep. Sediment budget estimation were made using literature sources, results of field measurements (hydrology, suspended sediment content, upper layer sediment structure, direct measurements of sedimentation in summer and winter conditions). The budget for terrigene and biogenic components of sediments were made, considering their contributions from the rivers, inflow from the Baltic Sea, coastal erosion and aerial flux, biological production within the lagoon, totally - ca. 730 thousands ton per year. Nearly half of total gain is washed out (105 and 244 thousands ton per year of terrigene and biogenic components), another half is dissolved and mineralized (biogenic component), and only 10% is deposited on the bottom, resulting in rather low sedimentation rate - 0.4 mm/year during last 100 years. Paper explain the reason of difference with estimation made in (Chubarenko&Chubarenko, 2002) and concludes that the clarification of estimates of the amounts of sediments transported from the lagoon to the Baltic Sea is a critical element for understanding the evolution of the Vistula Lagoon as a sedimentation system.

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Analysis of the Water Level Variation in the Polish Part of the Vistula Lagoon (Baltic Sea) and Estimation of Water Inflow and Outflow Transport through the Strait of Baltiysk in the Years 2008–2017

Water ◽

10.3390/w13101328 ◽

2021 ◽

Vol 13 (10) ◽

pp. 1328

Author(s):

Michał Szydłowski ◽

Wojciech Artichowicz ◽

Piotr Zima

Keyword(s):

Statistical Analysis ◽

Numerical Model ◽

Baltic Sea ◽

Water Level ◽

Vistula Lagoon ◽

Level Variation ◽

The Baltic Sea ◽

Water Level Variation ◽

The Baltic ◽

The Vistula Lagoon

The Vistula Lagoon is located in both Poland and Russia along the southern coast of the Baltic Sea. It is connected to the Baltic Sea in the Russian part by the Strait of Baltiysk. The purpose of the paper is to identify the dominant factors underlying the water level variation mechanism at Tolkmicko in the Vistula Lagoon, revealed by a statistical analysis of the measured data and a discussion on the inflow and outflow transport variation through the strait, estimated by numerical modeling. Seawater transport is exceptionally valuable in terms of the hydrological water balance in the lagoon. Historical research on the hydrology of the lagoon shows that the water exchange in the lagoon is quite complex due to the presence of several different sources of water balance, such as seawater inflow, river inflow, groundwater inflow, precipitation, and evaporation. Unfortunately, there are no current data on seawater inflow and outflow through the Strait of Baltiysk due to the lack of continuous flow measurements in the strait. A novelty of the current work is an in-depth statistical analysis of the water level variation in the Polish part of the lagoon over a long time period and an estimation of water transport through the Strait of Baltiysk by use of a numerical model. The model reproduces well the water level variation responding to variations in the sea level outside the lagoon and the wind action over the lagoon. The years 2008–2017 were chosen as the analysis period. A two-dimensional free surface shallow water numerical model of the lagoon was adapted to simulate the water level variation in view of the wind over the lagoon and the sea level variation at one open boundary. Finally, it was concluded that the water level variation on the Polish side of the Vistula Lagoon is dominated by two factors: the water level in the Gulf of Gdańsk and the wind over the lagoon. The average annual marine water inflow into the Vistula Lagoon was estimated to be equal to 15.87 km3.

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