Human+Impact+of+Fishing

= = ** Human Impact of Fishing. ** ** [|Consequences of Overfishing Video] ** ‍‍Fishing is from when humans catch fish from oceans.Fish populations are being threatened by humans and activities such as pollution and over fishing. ‍‍ ===‍‍‍ ‍People don't realise that fishing is causing damage to the enironment and kills aquatic species. ‍‍‍ ‍ ===




 * Fishing methods have changed dramatically over the years
 * Too many fish are now being caught
 * Fish are vulnerable to pollution and habitat destruction
 * Aquaculture is when fish are farmedThese modern methods catch a lot more fish but they also destroy a lot of habitat. explosives can destroy coral reefs.each year 800 kilometres of nets are thrown back into the sea. This causes further deaths and injury to animals that are caught in them.Dredging can rip up the ocean for a while

fish farming is where fish are raised in tanks or enclosures in the sea or in freshwater and then sold when they are big enough to eat.

We know more than our ancestors advantage.We can learn. We also have better technology that means we don't use explosives.We use nets, fishing rods and other things that don't have to do with explosives.

Fish
Fish are found in lakes, rivers and oceans all over the world. They live in groups, called schools, to feed and breed. Fish lay eggs that hatch into larvae and develop into adult fish. Larvae and adult fish have different needs so they often live far apart. Some fish that live in the ocean lay their eggs in a freshwater river. Fish are extremely vulnerable to over-fishing, habitat damage and destruction and pollution such as oil slicks or sewage run-off. Humans have fished the seas, rivers and lakes since prehistoric times. The term fishing is also applied to hunting for other aquatic animals such as shellfish, octopuses, squid and turtles. Fishing is practised all over the world but it has changed dramatically in modern times due to technological developments.

Traditional fishing methods
Traditional fishing methods such as line fishing, spear fishing, fish traps and small nets provided plenty of food for local communities. There was even sometimes enough fish left over to trade with others. These traditional methods meant that there was enough fish left for the future

Modern fishing methods
Nobody is in charge of what goes on in the ocean. If one country does not catch the fish then another country will. In recent years there have been lots of new methods developed to catch fish. These new methods catch many more fish than ever before, particularly in the ocean. Often birds, turtles, dolphins and seals are also caught by these modern methods. Some of these modern methods include: **Radar and sonar** to track fish. Boats and helicopters use radar and sonar to track schools of fish. At the same time, large government subsides and technological advancement of commercial fishing meant the industryreached it's peak global catch in 1989 of about 90 million metric tones.
 * **Driftnets** up to 15 metres deep and 65 kilometres long. These driftnets catch everything in their paths. Some island communities that rely on fishing for food and income are no longer able to catch enough fish to eat and sell.
 * **Purse seine nets** up to 600 metres across and 100 metres deep. This type of net is shaped like a purse that closes around the fish and stops them from escaping.
 * **Explosives.** Fish are killed by the shock of the blast and are then skimmed from the surface or bottom.
 * **Long-line fishing** where hundreds of baited hooks hang off a single line.
 * **Dredging and trawling** where a scoop is made out of chain mesh and is towed along the ocean floor by a fishing boat

=Year 6 Content:=

= Fishing = .
 * Humans have been fishing since prehistoric times.
 * === Fishing methods have changed dramatically over the years since then it has become more easier for human beings to catch undersized fish which is illegal. ===
 * === Fish are found in lakes, rivers and oceans all over the world. ===
 * === . They live in groups, called schools, to feed and breed. ===
 * === . Fish lay eggs that hatch into larvae and develop into adult fish. ===
 * === Larvae and adult fish have different needs so they often live far apart. ===
 * === Traditional fishing methods such as line fishing, spear fishing, fish traps and small nets provide plenty of food for local communities. ===
 * === **Radar and sonar** to track fish. Boats and helicopters use radar and sonar to track schools of fish. ===
 * === **Drifnnets** up to 15 metres deep and 65 kilometres long. These driftnets catch everything in their path ===
 * === **Purse seine nets** up to 600 metres across and 100 metres deep. This type of net is shaped like a purse that closes around the fish and stops them from escaping. ===
 * === **Explosives** Fish are killed by the shock of the blast and are then skimmed from the surface or bottom. ===
 * **Long-line fishing** where hundreds of baited hooks hang off a single line
 * === In 1950 21 million tonnes of fish were caught in the sea. ===
 * === A lot of the fish that people used to catch can no longer be caught as there are not enough of them, This is called **commercial extinction** ===
 * === **Fishing is very common in Australia** ===
 * === fish is now known as a food the most popular dish used with fish is the delcious fish and chips ===
 * === There are various fish markets throught out the world ===
 * === Aquaculture is fish farming. ===
 * === It now accounts for about one-third of the fish eaten around the world. ===
 * === Fish are raised in tanks or enclosures in the sea or in freshwater and then sold when they are big enough to eat ===
 * === **Dredging and trawling** where a scoop is made out of chain mesh and is towed along the ocean floor by a fishing boat. ===
 * == By Jayde, Jessica & Natasha.O ==
 * == By Jayde, Jessica & Natasha.O ==

Fishing Fishing is a entertainment and a fun activity Fish are found in lakes, rivers and oceans all over the world. They live in groups. Human have been fishing since prehistoric time.Traditional fishing methods. are much more friendly and careful to the fish then modern fishing methods. There are lots of different ways to fish,for example: Spear fishing By Ashley Manuel & Emily Wu
 * seine nets
 * fish string
 * long line fishing
 * explosive blast