Dynamic patterns of overexploitation in fisheries

The Predator-Prey model was first used to quantitatively describe the economic predator dynamics in the actual fishery

A simple "thinking model" model highlights the dynamics of overuse of resources and the collapse of production systems

Renewable fish may be expressed as irreproducible resources when mined at a rate far exceeding its capacity.

Understanding overfishing and regulation of catch is a major global challenge in the supply of food and protection of marine ecosystems in the 21st century. However, the fishery is not only the impact of overfishing, but also complex economic activities that are influenced by pollution, technology, economic factors and so on. For this reason it is difficult to completely judge that overfishing is the cause of fishery reduction. In this research, we developed a simple dynamic model specially designed to identify and study the impact of depletion on production. This model is based on the well-known Lotka-Volterra model or Prey-Predator mechanism. This assumes that fish and fishery are variables that link dynamic interactions. In this model, the fishery functions as a "predator" and the population of fish functions as "prey". There is a strong indication that a reduction in catch is promoting a decrease in fish production, especially if the model can adapt to historical data, especially with regard to the decline in productivity of a particular fishery. Although this model is not a general description of various forms of fisheries, the data reported here suggests that we can describe some historical cases of declining and collapsing fishery production. Important elements

The over-developed "thinking model" model in fishery is based on the concept that fishery is "predator" of resources and its growth and subsequent decline is directly related to the abundance of fish resources.

Overuse may lead to damage of resources including extinction. However, as explained in the fishery section below, overfishing is also sustainable. For fishery, the term overfishing can be used as an alternative to endangered species in overfishing, overgrazing in resource management, overcatch in forest management, overcatch in aquifer control, and species monitoring. Abuse is not limited to human activities. For example, the introduction of carnivores and herbivores may excessively use local flora and fauna.

Humans are responsible for the threat of birds. Destruction of agriculture and forestry industry and expansion and strengthening of degraded habitat. Insufficient fishery management, infrastructure breeding, alien species, pollution, overfishing are serious problems. Visible climate change can be the most serious threat to all people. These threats have deeper roots, and their roots are failing to give them natural and real value. Over the past few decades, governments around the world have approved a number of international agreements on the protection of biodiversity and demonstrate their willingness to cooperate in solving important environmental problems. The current challenge is to utilize this commitment to ensure that concrete actions are taken at the most necessary places. In some countries, the participation of civil society and indigenous groups has made remarkable progress. The private sector is also showing signs of an increase in behavior

An imminent vulnerability is the world's fishery and it provides an important source of protein for at least half of the world's population. The fishery is under pressure of overfishing and pollution. Global warming of surface water, sea level rise, melting of ice on the sea surface, river, lake, and the like adversely affect many fish species. Some of the fish in the sea are adapted to move to high latitudes, but other sea fish such as the Arctic and freshwater species have no place to go. Absorption of carbon dioxide emissions by the ocean also directly affects the marine ecosystem through ocean acidification.