This is about all known so far about this disease and is more unsightly than dangerous to the fish. No reliable treatment is available so far and the fish keeper must learn to accept it for the time being. DROPSY (Pinecone disease) This Godfish diseases is commonly confused with kidney bloat but caused usually by bacteria Pseudonomas or Aeromonas.
How are Red tides harmful? Red Tides affect the marine and land life in various ways, the most important of which are listed below 1. Effects on human life: i. Paralytic Shellfish Poisoning (PSP): This happens if fish contaminated with Alexandrium species is consumed. It majorly affects the nervous system and in many cases leads to paralysis.
In the course we learned about one of the biggest, arguably the biggest, threat facing the world’s oceans today: overfishing. Overfishing is when fish are being taken out of the ocean faster than they can reproduce. This is occurring all over the world, including right off our very own shores. This has a myriad of impact in the marine ecosystem and well beyond.
Around 50% of our coral has died, and this has a major impact on many other organisms, and the world in general. Many fish live in reefs, and need it survive, and this ruins the ocean, the most important part of the Earth. This comes back to hurt us as well. Eutrophication is a process in which excess nutrients
The adaptive features of plants: i. Leaves: Various kinds of the plants’ leaves have adapted to the freshwater habitat depending on where they locate. This report will mainly focus on two adaptive features of leaves: i.e. underwater leaves and floating leaves. A. Underwater leaves: This kinds of leaves often exist on the plants whose whole body grow underwater in the water stream. As some region in water stream is deep, which is about 4-5metres, so the light diffused to the bottom is few.
As a species gets close to extinction it can be very hard to restore them back to sustainability. Even closing the fishing game for that species is not enough for a species to comeback from overfishing. Both recreational and commercial fishing have a huge impact on overfishing, by keeping under sized fish and other aquatic life. Not only do fish have to worry about fishermen but they also have to worry about each other, fish deplete their own population by feeding on one another. For example, Betta fish are known to eat fish of the same species but can live peacefully with fish of another species.
Small mercury particles were often floating on the top of the water for miles past the mining sight. Mercury was the quick fix that settlers were looking for. However, this quick fix caused a life-time of destruction, mercury found its way not only contaminating the water supply and soil but through the food chain. More often found on the wildlife and vegetation, especially in the tissues of fish in the rivers, thus causing serious health issues to humans eating high amounts of fish. Overall, the California Gold Rush based on history did not have many contributions and positives to the environment.
Without salt the shark's cells rupture, which leads to bloating and death. This is why most sharks cannot enter fresh water, because their internal salt levels would become diluted causing their cells to burst (National Geographic News). Bull sharks are unique because they can adapt their process of osmoregulation in order to adapt to the fresh water environment. When bull sharks are in salt water, they contain a high concentration of urea, and other solvents which help balance out concentration of salt (jeb.boilogist.org). They expel large amounts of salt in their bloodstream through urination (shark saver.org).
Organic wastes from fish cages can have a significant effect on water quality and the population structure of organisms, beyond the boundaries of the fish pens, increasing the occurrence of toxic algal blooms. Scotland, as well as Chile and China, has had serious toxic algae blooms. Algal blooms can cause the death of huge numbers of wild fish and other species, and great harm to wild fisheries. However, even a month of fallow time can return the area to pristine
They create a well balanced ecosystem by being the prey of amphibians and small water insects and eating algae found in ponds and lakes. When there is not Daphnia present in lakes and ponds, an increase of algae and decrease of fish can be seen. Because of their sensitivity to the surroundings and its transparent carcass, when Daphnia are in hypoxic conditions, more hemoglobin is produced and they appear red. Hypoxic is when the body or part of the body is lacking adequate oxygen supply. This red color can be seen about
Andy Dehart, Discovery Channel Shark Advisor, spoke about the North Carolina shark over fishing problem. The shark populations on the East Coast were extremely over-fished which lead to the over population of sting rays, a main food-stock for sharks. The stingrays in turn decimated the shellfish populations on the East Coast, leading to calm and shellfish shortages. This shows that sharks are necessary for every eco-system and their destruction affects us in more ways then we can imagine. Sharks are very at-risk for over-fishing because they take a long time to reach the stage where they can reproduce and in general only have a few pups when they give birth.
All organisms need oxygen to survive and when their is not enough oxygen, it leaves plants and animals to die. The area of water where there is a low count of oxygen are often called a dead zones. Also, an increase of the pH level in the water can be created because of algae blooms. The toxic killing algae can make humans sick. For the aquatic animals, these toxins attack mainly the organisms liver and nervous system (Nitrogen and