"Scientific works of Dalrybvtuz: scientific journal Volume 30 2013" is not just a collection of articles, but a real treasure for those who are passionate about marine science, fish breeding and ecology of the Far Eastern region. The team of authors who collected their research in this issue has created a unique document that reveals to the reader the richness and complexity of marine ecosystems, as well as modern methods of studying and protecting them. This volume is the result of many years of scientific research conducted within the framework of the Far Eastern State University of Fisheries and Oceanography, and represents an important contribution to the development of marine science in Russia. The Scientific Works of Dalrybvtuz : The scientific journal "Volume 30 2013" is not just an academic collection, but a living source of knowledge that will interest both professional scientists and students, graduate students and everyone involved in the study of marine biological resources, fish farming, ecology and environmental protection. For those who are looking for relevant research in marine biology, hydrobiology, aquaculture or are engaged in the development of new technologies in the field of fish farming, this issue will be an indispensable assistant. The topics raised in this issue cover a wide range of issues related to the marine ecosystems of the Far East. Here you can find articles on new methods for assessing fish stocks, studies of migration of marine organisms, analysis of the influence of anthropogenic factors on the marine environment, as well as on modern approaches to biodiversity conservation. Particular attention is paid to the problems of sustainable use of marine resources, which makes this journal relevant for specialists interested in environmental safety and rational use of the natural resources of the region. The style of presentation in the "Scientific works of Dalrybvtuz" is characterized by strict scientific accuracy, but at the same time the authors are able to make their articles alive and understandable. This publication is the result of the team work of scientists who not only share the results of their research, but also strive to make them available to a wide audience. Thanks to this, the book is great for those who want not only to deepen their knowledge, but also to get an idea of modern trends in marine science. The author's team, united by a common goal - the development of fisheries and the protection of marine resources, includes leading experts in the field of hydrobiology, marine ecology, fish farming and marine engineering. Their works are distinguished by a high level of scientific novelty and practical significance, which makes this volume especially valuable for scientific institutions, universities and government structures engaged in environmental activities. If you are interested in ecology, marine biology or fish farming, the “Scientific Works of Dalrybvtuz: Scientific Journal Volume 30 2013” will be a real discovery for you. This publication will help to understand the current challenges facing the maritime industry of Russia, and will introduce best practices for the study and protection of marine resources. It contains materials that not only expand the horizons of knowledge, but also inspire new scientific ideas and practical solutions. This issue is not just another scientific collection, but an important contribution to the development of marine science, worthy of the attention of everyone who appreciates deep research and strives to preserve the richness of the deep sea. "Scientific works of Dalrybvtuz: scientific journal Volume 30 2013" is a book that combines scientific rigor, relevance and practical value, making it an indispensable source of information for professionals and enthusiasts interested in the future of the Far Eastern maritime region.