Distribution and population characteristics of Mytilus edulis L. in the Sel'dyanaya, Kruglaya and Levaya Bays (the Chupa Inlet, White Sea)
Journal Title: Вестник МГТУ - Year 2017, Vol 20, Issue 2
Abstract
The results of researching the structure of Mytilus edulis L. settlements and the growth rate of mollusks on the littoral of the Kruglaya, Sel'dyanaya and Levaya Bays of the Chupa Inlet, the White Sea in summer 2014–2015 have been presented; the spatial distribution, abundance indices, size-weight and age structure have been analyzed. Mussels form the huge aggregations on the middle and lover intertidal zone due to the nature of the bay bed represented by the stone-boulder belt and providing the mussel with large attachment surface. The increase in the abundance of mussels is observed simultaneously in two directions: from the upper horizon of the littoral to the lower one and from the mouth of the bay to its opposite part. In 2014, the highest mussel abundance was registered in the Kruglaya Bay, in 2015 – in the Levaya Bay. Molluscs of this species form aggregations with high biomass and density on the lower horizon of the littoral, which is associated with increased water exchange due to tidal currents that provide mussels with food. Mussels characterized by the largest size-weight parameters have been found in the Sel'dyanaya Bay. Mussels of 3–6 years dominated in the Kruglaya and Sel'dyanaya Bays in 2015. The mussels of 0–2 years dominated in the Levaya Bay the same year; the intensive subsidence of juveniles in the period under study has been observed. The highest growth rate has been observed for mussels inhabiting the Levaya Bay.
Authors and Affiliations
K. S. Khacheturova, P. P. Kravets
Keywords
Related Articles
- EP ID EP225931
- DOI 10.21443/1560-9278-2017-20-2-486-492
- Views 116
- Downloads 0
Expansion of assortment of culinary products from the grown fish
The studies have been carried out to expand the range of molded fish culinary products by some technological modification of recipes for complex culinary products and croquettes. The composition of fish complex culinary...
Analysis of operating conditions of the voltage transformer
In electrical networks, constant monitoring of the electrical equipment operation is necessary. To accomplish this task, current transformers and voltage transformers (VT) are used, on which the accuracy of electrical me...
Technology of flour confectionery products using emulsion obtained in conditions of cavitation processing
The idea of using the cavitation energy in food industry appeared in the middle of the last century, but due to absence of efficient machineries and developed process theory this method was not used. The attractiveness o...
Antioxidant complex extracts from fucus algae of the Barents Sea
A new method for obtaining antioxidant complex extracts from fucus algae has been proposed at the example of three mass species of the Barents Sea: Fucus vesiculosus, Fucus serratus and Fucus distichus. The chemical comp...
Distribution and spawning area of Atlantic salmon Salmo salar L. in the River Ura (the Murmansk Region)
The development of measures to preserve the population of Atlantic salmon has been carried out on the basis of the results of studying the state of its habitat and the conditions of reproduction. During the survey of the...