Abstract
The article presents results of examining possible competition between mass species of flounders for food resources in the eastern part of the Sea of Okhotsk. Comparative analysis of flounder feeding is provided in view of nonrandom forming food spectra as an effect of certain factor, which is interspecific competition in particular. Analysis of population growth rate dynamics was to find out mutual effects of the populations of different species on each other. General methods of the research included “neutral models” and Lotka – Volterra equations. Results indicate, that structure of flounder feeding had stabilized early under the influence of factors, including the interspecific competition. In most cases, the interspecific competition estimated per an individual is higher than intraspecific competition. Simulation has demonstrated, that flounder populations of the eastern part of the Sea of Okhotsk striving in their dynamics to the state of sustainable balance. Revealed competition between the flounder species for the resources is of assymmetric character.
Highlights
FLOUNDERS, OKHOTSK SEA EASTERN PART, COMPETITION FOR RESOURCES, FORAGE STRUCTURE, POPULATION GROWTH, COMPETITION MODELS The article presents results of examining possible competition between mass species of flounders for food resources in the eastern part of the Sea of Okhotsk
Comparative analysis of flounder feeding is provided in view of nonrandom forming food spectra as an effect of certain factor, which is interspecific competition in particular
The interspecific competition estimated per an individual is higher than intraspecific competition
Summary
В качестве исходного материала для оценки вероятного воздействия межвидовой конкуренции на структуру питания использованы данные В.И. (1998) по составу пищи шести массовых видов камбал, обитающих в восточной части Охотского моря, у берегов Западной Камчатки Что спектр питания разных по размеру особей может сильно различаться, поэтому в исследуемые сообщества объединяли рыб идентичных размерных групп, разбитых по 5-сантиметровым интервалам длины. В таблицах показано процентное соотношение организмов в общей биомассе пищевого комка. В них приведено рассчитанное нами по данным указанных авторов среднее соотношение компонентов питания рыб всех размеров, а также широта пищевого спектра — число объектов питания у особей разной длины. Исследование межвидовой конкуренции у восточноохотоморских камбал (Pleuronectidae) с помощью нейтральных и... Состав пищи (%) желтоперой камбалы восточной части Охотского моря
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
