Wow Week 5 - hard to believe we are almost halfway through Term 1 already! This week we have our last swimming session as a class (on Thursday afternoon as usual). Please make sure you are organised with swimming and PE gear. Homework - Homework this week is spelling as usual (List 3 words) as well as the following Rocky Shore activity. This week is Seaweek which ties in perfectly with our Rocky Shore topic. If you come across any articles/photos/letters etc to do with Seaweek (from the newspaper, internet...) please bring those along on Friday. Your task for homework this week is the following: click on the following link: http://www.otago.ac.nz/marinestudies/database/home.htm
Click on movies - you will see there are 6 movies to choose from. You can watch as many movies as you like but your task is to summarise one of the movies and post it in a comment on the blog. I would expect your summary of the movie to be about a paragraph long. It is important that you check your work for spelling and grammar - use a dictionary if you need to!!
If you are having any trouble please come and see me and I can help you out :)
Good Luck!
27 comments:
Undaria Invasion
This movie is about a weed, which destroys our water environments the problem is that people don’t know the difference between the weeds. This weed threatens others that provide food and shelter for sea creatures. They the weed arrived in New Zealand in 1987 and quickly spread all over New Zealands coastlines. It clings to things very well and often clings to ships it is originally from Japan. When other seaweed gets swept away this weed takes it place. Some sea creatures rely on this plant but the problem is it disappears twice a year to a microscopic size.
Whale feed By Henri
In Summer, krill / munida come into the otago harbor to feast and lay eggs. Next the juvenile krill swim north wards with the currents, along the way some wander into the harbors and get trapped as the tide falls and become a snack to around 23 other creatures, those who make it past the NZ shoreline land on the sea beds as the become adults. Munida can be used to farm salmon although amounts able to be used change dramatically over the space of a year which means that using krill to farm salmon could endanger the species.
Gary the Worm
When Gary the worm is found in the harbour and taken to the aquarium he finds that those terrible kids that stare at him are just too much of a pain. Gary quickly finds the drain of a sink and down he goes! He slithers into the tubes and down, down, down into the rocky harbour. Worming into the water he discovers a terrible stench that leads him to a sewage pipe and a half-eaten hamburger. Shocked, Gary goes looking for someone to help him clean up this terrible mess! As he travels along, he helps marine life and generally is a nice fellow. Not finding anyone he heads rather despondently back to the shallower waters. As he walks back, a troop of all the marine life he had encountered come up and produce these muck-loving worms! Gary and the worms happily slime back to the pipe where the worms start chomping through the sludge. Finally the Ocean is clean!
Charlotte B-R
Undaria is an invader against our native beauty, colonising ports as though they were their own. It originates in Japan, and has traveled her by clinging onto the bottom of international ships. It overtakes native seaweed and makes a poor substitute when offered to aquatic life in New Zealand. Paua stay undersized when fed, and fish prefer other seaweed. Unlike gorse overtaking our native forests, this invasion has not been noticed, and only came here recently in 2003. Marine scientists are trying to advertise the fact that our underwater world needs help too, and the community will need to pitch in if Undaria is not to be here at all, and never to come back. You may think that although this is a problem, it can be dealt with later, while we focus our environmental efforts on land. Thats not how it is. By the time it's 'later' Undaria will have taken over completely. Do we really want a sea full of strangers?
By Annabelle.
The Portabello Aquarium was opened in 1904 to help breed native species. Political pressure also made them breed some English species like the lobster along the east coast. Today it is used to educate people on the delicate eco system that we did not listen to 100 years ago and study the vast opportunities that our native species hold
For homework, i watched the 'saving seahorses' video. I think using seahorses in aquaculture is a very good idea. We don't need to have any more extinct animals, whether it's on land, in the sky or in the sea. Animals becoming extinct can mess up the food chain and cause other animals to also become extinct. You may not care about seahorses, but somewhere in the food chain your favourite animal will be linked to seahorses. So if we don't take action to save the seahorses, many other animals could be at risk.
Saving Seahorses
Male Potbelly Seahorses try to attract a potential mate by circling her and occasionally changing colour. If the female decides that, the male is attractive enough she will lean forward and lay 800 eggs inside his pot belly. The male then fertilize the eggs and look after them for 30 days. However...doctors from all over the world are using seahorses in medicine. Today up to 60 tonnes are collected from there habitats each year. Wildly tramping through seahorses homes endangers the seahorse community, as well as killing innocent seahorses. Unless some action is taken 32 species have been recognized as close to extinction. However there is away around this. By growing seahorses, Paua and Amphipodas together marine farmers might be able to sell seahorses from Medicine.
Hi Miss Roney, I watched Eating Underwater and this is my summary :D
Eating Underwater explores the lives of Scavengers, Filter Feeders, Grazers and Predators and how they survive eating underwater. This movie compares eating underwater to how humans eat. Stating that it is truly bizarre how any animal can survive in those tiresome conditions. The short documentary explains how many different types of sea creatures feed during the day, and what they feed on. For example, the spiny star fish will feed on scollops, by placing its stomach inside the scollops mouth, which is something much more complicated than what we have to do to get our dinner! So basically, Eating Underwater tells you about what different sea creatures do to get their dinner, and how they eat it.
Thanks for reading :D
Maia :D
Seahorses have small gills and almost invisible fins.
The largest seahorse is the potbelly seahorse.
The way seahorses get food is by gulping there food
That they get from the water through there straw like snouts.
Adult seahorses are picky and only like to eat little fresh sand hoppers.
Seahorses remain a strong relation with there mate
Though out there lives.
The way that seahorses don’t float away it that they use there
Tails to hold on to plants around them.
Every day 60 tons of seahorse is collected.
One of the problems the seahorse is having is that the
Wild harvesting endangers the whole community including the
Seahorses.
A amazing 23 types of seahorses are on the verge of being extinct.
Humans need to take action and do something about this.
Some people believe that it would help the seahorses from extinction
If we bread non-wild seahorses.
Seahorses can be harvested every 5 months.
People have been gathering seahorses for over 2000 years.
By Nicola.
Title: Garry the Worm
Garry the worm is about a worm that escaped from a lab because he was sick of all the children. He slid down the drain into the ocean. He thought it was wonderful until he came across a sewage pipe, that leaked of disgusting waste. He swam and swam looking for someone to help clean up this gross mess, but he came across a creature looking for help. The creature was calling for someone to help save her baby from being eaten. Garry stepped up and fought the beast away. He continued looking and on his way he came across several creatures such as a family of jellyfish, a worm with great big teeth and a shark with even greater ones! In the end he didn't find anyone to help him. So he thought. All of his friends he made on his journey found some other worms to help him clean up the waste. Garry was happy with their achievement.
Prior to the video of Garry The Worm...
A bunch of school children visited the Aquarium. By watching this I learnt some things...
Worms
-Live in all sorts of places
-The come in all shapes and sizes
-They swim around freely
-Some move around on the ocean floor
-The feed in mud
-The live in tubes and filter their food out of the
water
-Many have feet to help them move
By Ebony :)
Gary the worm
George street normal school went and visited the portobello aquarium to find out what a sea worm is. first they went over and looked at some of the places in the rock pools were the sea worms live. Next they carried on to the learning room
Which they looked at different worms and where they live who they get hunted by and were they hide and where they live in the otago harbour. They found out that some sea worms are big some are small also that they live in mud or in tubes and that some swim freely and some scrape along bottom of the sea. then they told the story of Gary the sea worm that got out of the portobello aquarium down the sink and in to the ocean he came across all this junk so he went and looked for some other sea worms to help clean up all that junk in the end all the friends he meet on the way helped him to find some other worms to help in the end Gary the sea worm cleaned all the rubbish up and also the George st school found out what the sea worms are!! by will
Saving Seahorses-
Seahorses, utterly unique, and beautiful, are under a threat from modern socity. For up to 2,000 years, humans have been harvesting seahorses for their many uses. Seahorses are most commanly used for medicine, with 60 tones of the animal collected each year for the purpose. But 32 types of Seahorses are facing extinction, including the Potbelly Seahorse, the largest of it's kind.
What people don't realise is that Seahorses are precious, with their delicate fins, their straw-like snout, their gills, all but hidden, and their tail, useless, but can hang on to seaweed and other sea plants, just as they must hang on to life. When they mate, they form a bond, a bond we must never break. Seahorses can lay up to 4-800 eggs, and all that life, must be kept sacred.
Just as Seahorses can change colour, we can have a change of heart.
Caroline.
SEAWEED INVASION
Undaria, dark green algae that can grow up to 3 meters long, originated in Japan and brought to New Zealand threw ship,the weed of the sea has increased dramatically now trying to take the place of our local algae by eating them and out growing them and soon if we don't try to stop them they shall invade the whole ocean around NZ. That is only if we don't stop them, but if we do by sterilising the ships so that the algae cant come in to NZ then we will keep our great ocean full of extraordinary living creatures and make New Zealand a better place.
John
Saving sea horses
Sea horse males try to attract mates by puffing up their chest and changing their colour and if the female likes them they lay 4-800 eggs in the male, he then looks after the eggs and babies.
The Asian and European kill sea horses and 60 tons of sea horses are collected from the water for trade or ground up in water or wine for medicine. They make lots of money on the market. Thirty two seahorse species, including our own, are close to extinction
Quentin Dunbar
Seaweed invasion
This video is about Undaria. Undaria is a type of seaweed originating from Japan, it is a pest which has made its way over to New Zealand by either sticking to the bottom of ships or being dragged by currents. It attacks wherever costal defences are weakend by storm waves and then populates the area when it does this it will take over other plants and destroy habitats which are needed for sea creatures to survive. It is very good at sticking to artificial surfaces such as ships and ports. Undaria first appeared in Wellington in 1987 and by the year 2000 it had spread to all the major shipping ports in New Zealand. Native seaweeds will stand against Undaria under normal conditions, if there is a storm, human disturbance or grazing pressure Undaria will appear and won’t go be easily removed.
By David
Hi, what I am about to say talks about the very real threat of invasion from an alien sea weed called Underia. This weed originally came from Asia. It travelled to NZ by latching on to the under-side of boats. When the boat reaches harbor, the sea weed spreads to the jetties and other man and natural made things. Once here it proceeds to spread further. When the native sea weed is damaged the alien weed will close in and grow where the native was. Sea animals can still feed but paua will grow under-sized if fed only Underia. As well as this, in the winter the massive sea weeds turn to tiny microscopic plants, making them hard to eradicate and also destroying habitats and food sources for the sea life. Underia first appeared in 1997 and had taken over most ports including Stewart Island by 2003.
By Bruno
I chose Portobello marine centre. At the start they were killing possums and it was pretty bad. And they showed lots of pictures of Portobello in the olden days and now. And it was pretty cool.
In Summer, munida come to otago harbor to eat and lay eggs. The juvenile krill swim north using the currents some vist the harbors and get stuck as the tide goes out and are eaten by other species. Munida are used for farming salmon, the problem is that this could endanger them and lead to extinction.
By Neihana
Seaweed Invasion
Seaweed invasion is a movie about a seaweed called Undaria.
Undaria first came to New Zealand when the first ships came to find new land.
Since then it has spread quickly all over New Zealand.
Austin
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UNDARIA
Undaria came to New Zealand on the bowels of large ships. It clung to the bottom of Japanese ships and when it came to New Zealand it spread. It was first found in Wellington in 1987, then spread to every major port in New Zealand in 2000 and then to Stewart Island and Chatham Islands. The reason Undaria can survive in New Zealand is because it adapted to the change in temperature so it can break thorough the Natural defences of the Ocean. Undaria is unlike native seaweed that make a dense cover for fish and inverterbrates. Instead it takes over the weaker seaweed so the animals eat the native seaweed. To make it even harder to get rid of Undaria it turns microscopic twice a year. Now all the ships that come into Dunedin harbour have to go through the responsible shipping practices and sterilising to save Otagos unique wildlife.
Lucy
Saving Seahorses-Lola
Saving Seahorses is a short film about Seahorses and the effect that medical research has on seahorses and their communtiy.
Over 30 species of Seahorse are vunerable to extinction in the near future, and the purpose of this movie is to tell us how we can stop 60 tonnes of seahorses a year being taken out of their homes and sold for medicine.
Seahorses are crushed up and mixed with water and even sometimes wine to attempt to create cures for illnesses, even baldness.
Too stop so many seahorses being killed, aquaculture farmers could farm seahorses,causing people to buy seahorses and not kill them themselves.
Seahorses can be harvested every 5 months, while paua can take 4-5 years, which is why scientists are urging aquaculture farmers to farm seahorses aswell as paua.
For more information talk to the staff at Portobello Aquirium about what you can do to Save The Seahorses.
By Lola :)
Unduria
Unduria is very bad because it kills all the seaweed that provides crucial food and habitat for all the sea animals. It was smuggled from Japan. It was first smuggled in to NZ at wellington port 1987. By 2000 it had spread to every major port in NZ, it then spared to other places such as Stewart island and Chatham islands marine sciences are trying to find out what they can to stop it and how to protect the fish.
From Sam.D
Whale feed by Hayeden
whale feed is about whales food which is krill. the krill is a small crustacian which filter feeds on plankton. this movie also tells us about food for salmon farming, which didnt work to well because it could of endangered the species. When krill become adults they settle on the ocean floor. krill are not farmed any more.
Hayden
Undaria.
Undaria is a type of seaweed which came from Japan and first arrived in
Wellington harbour in 1987. By 2000 it had spread to every major port in NZ. We
didn't have it before because the warmer parts of the ocean acted as a barrier
but now ships can carry it quickly across to NZ. We don't want it here because
it takes over and doesn't provide a sustainable food source for fish and other
marine animals.
Beau
Munida
In our oceans there are little fish called Krill or also known as Munida or Whale Feed. Krill are small, squat lobsters and are red so when you see them in schools it looks like someone has got a bucket of red paint and just poured it into the water. Some groups can spread over kilometres of water ways all over the world. There are 32 different species of fish in the ocean that eat Krill as their main food supply. In 1980 John Eldis flew along the Otago coast to calculate how many Munida/ Krill were available to fish farmers as when the Krill drys out they can turn them into tablets which they feed fish with. In 1978 5000 tonnes of Krill were caught but in 1979 only 400 tonnes and none in 1980. The reasons they could only capture so few is that if they take too many they might've endangered other animals sharing the ocean by cutting off their food supply.
Samuel Wardhaugh
hi Miss Roney, just wondering, why is homework spelt like it stands for something? (dots in between) does homework actually stand for something?
just noticed :) :)
Hi Charlotte :)
Very observant of you! No, doesn't stand for anything, just something different. Homework is still just plain old homework!!!
Miss Roney
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