yes
The shrimp population will increase which will cause an increase in the squid population.
Immigration could cause the population to increase.
Over population of a particular species will cause the food chain in that ecosystem to become unstable. Over population will also reduce the amount of producers within an ecosystem (depending if the over population is of a consumer) and will lead to the decrease of other animal species inhabiting the same ecosystem.
an increase in the spider population
there would be less nutrients for the plant.
An increase in bio diversity leads to increases in ecosystem stability because it will cause a constant competition. With a lot more of each species that means there's more food and more stability will arise.
World population and lifestyle.
Plenty of food
Plenty of food
An increase in prey population, availability of suitable habitat, and decreased competition from other predators can all contribute to an increase in predator population. Additionally, favorable environmental conditions, such as abundant food sources and decreased human intervention, can also lead to a rise in predator numbers.
Not by much
Eutrophication can cause loss of oxygen in the water with severe reductions in fish and other animal populations. Other species may experience an increase in population that negatively affects other species in the local ecosystem.