Showing posts with label marine. Show all posts
Showing posts with label marine. Show all posts

Queensland and NT are Losing Mangroves

 |_| Australia is facing a period when there will be fewer mangroves. to - losing australia. |. nt | mangroves breeding on fish climate change a |_|
When you go to a mangrove you promptly get a whiff of that stinky aroma. It is no joy to canter to the sea to dip your feet in the. Why should you care if some of these habitats or two are lost? Some animals would miss the valuable place to roam.  |_| australia nt do mangroves is fish breeding losing nt australia change climate sea |_|
Mangroves are dying out
Your supper plate would not be so appetizing  with fewer mud crabs, banana prawns, barramundi and red snapper. This is occurring in north Australia in the Gulf of Carpentaria, situated in the Northern Territory northerly and Queensland. The harm was brought on by El Niño altering the course of winds. Ocean levels fell leaving mudflats dry. Additionally, There was a deficiency of rain because of drought.   |_| fish or breeding australia on nt losing as mangroves it go queensland breeding in fish nt mangroves losing |_| |_| travel news stories |_|    

Rhizophora, the plant, dislikes excessive salt. The establish themselves on the coast as plants upstream in fresh water grow above them which shuts out light. If a tree is dies it will take ten years to supplant it.  The species lives a long time - over 200 yrs. |_| losing Queensland not. |_|   
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If things do remain the same the fishing industry will suffer with a decrease in overall catch.  Fish breeding go to mangroves they are good places to feed.  Furthermore, they breed there. Scientists are looking into the problem.  It is not known if it caused by climate change.
or an nt up queensland losing. |_|

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|_|search mangrove dry plant tree water northern drought salt time years |_| photos blog stories news |

Cosmological Effects on Earth's Evolution

Evolution speeds up with cosmic activity.
Most people assume that we are isolated here on this tiny planet called Earth. However, throughout the ages life has been impacted by what goes on out there in the cosmos. Humans would not be dominant in the world today - considering we got down to less than a hundred souls when the climate suddenly took a new direction.
Arrow piercing a supernova
An arrow piercing a supernova?
When astrophysical phenomena such as black holes send out x-ray flares it affects earthly evolution. It has estimated by computer modelling that two supernovas occurring close together increased radiation on marine life by a factor of three. This is a major change that nascent intelligent life had to adapt to.

Radiation sends out muon particles which hit the ground. More of them alters the environment. DNA mutation will speed up, so evolution becomes more rapid. This would account for the sudden disappearance of established species and takeover by new ones.

The dark clouded lightning nights portrayed in Frankenstein movies would not be far from the truth. Increased radiation would raise ionization of the atmosphere. Thus, the frequency of lightning strikes
would intensify.
Cosmology by Ty Buchanan
            Australian Blog   Adventure Australia
cosmology, universe, cosmos, planet, earth, evolution, supernova, black hole, life, marine, dna articles news politics economics society anthropology historiography history sociology people nations country asia europe africa u.s. south america central Mediterranean eastern western interesting funny technology adventure australia blog australian blog free news sex

South Australian Beaches are Ecologically Toxic

Dead fish on South Australian beaches gives bad conservation image.
When marine animals wash up on the shore dead what does a state government do about it? It tries do deny it and cover it up! Maybe it will stop in time - unfortunately it continues. The thousands of small fish dead on the beaches are bad enough, but dolphin corpses are found as well, even some penguins.
Dead fish on beach Port River Adelaide.
The location is on the South Australian coast near the Port River, Adelaide.  Recently, a grieving female dolphin was seen nuzzling her dead baby, a terrible sight. A concerned PHD student, Nikki Zanardo, is investigating the issue. There is a worrying mystery here. Why has the state government sent dolphin samples to New Zealand? Tests could have been done in South Australia. If herbicides or industry poisoning is at fault, it will all come out eventually. You cannot hide anything today.

It is not right that consumers are allowed to eat seafood when there is a possibility that dangerous biological toxins are the cause. If dolphins can die so can humans. We are both mammals after all. Apparently test results will take up to a month. Tests should be done on fresh fish at the markets immediately to make sure it is safe to eat. The South Australian government will be liable in the event of a medical emergency.
 Ecology by Ty Buchanan 
 Australian Blog
            Australian Blog   Adventure Australia
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Ships' Ballast Water Spreads Marine Creatures

As international trade continues so does "equalization" of the planet. Many marine species are now found in all waters of the world. This is because transport ships literally hoover up animals in ballast water, which is released at any time, any place, when it is no longer needed.
Ship releasing ballast into a port
All ballast water is released into a port when cargo is taken onboard. Marine survivors of this rough treatment give the local environment a go. Some are successful and multiply to epidemic proportions. Zebra mussels and Pacific seastars in particular are a major problem.

An Australian study gathered data such as ports where ballast was likely to be taken on and where it would probably be released. Marine species spread this way were identified and it was predicted how long they would survive. This data was fed into a computer.

It was noticed that shipping volume was increasing mainly in the transport of primary products. Most of this Australian export was delivered to Asia and Southeast Asia. This meant that marine species from this region were unloaded into Australian waters.

New laws were introduced in 2001 to ban the emptying of Asian ballast water into Australian seas. The new rules have been totally ignored. Furthermore, the International Convention for the Control and Management of Ships' Ballast Water and Sediments (BWMC) directed ballast water be unloaded into holding tanks. Shipping is not complying.
Environment by Ty Buchanan
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            Australian Blog   Adventure Australia

Cancer in Clams Spread Cells Floating in the Water

Clams along the United States' eastern coastline are suffering from cancer. Like the "bug" in the Tasmanian devil it spreads from individual contact. Rogue cells jump between clams by floating in the water. The most common cancer of clams is leukemia - the sea creatures have a circulatory system.
The find happened because Carol Reinisch of Massachusetts Marine Biology Laboratory (who works on soft-shell clams) asked Stephen Goof of Columbia University to look for clams getting cancer by a  virus. He was shocked to discover a toxic cell that spreads cancer all along the eastern seaboard.

Only two other cases of the spread of cancer by cells are known. One is decimating the Tasmanian devil. The other is transmitted sexually in dogs. At present Geoff Goff's research is supposition. A lab experiment which shows cancer spreading by a cell in water has not yet been done.

Scientists will soon carry out the relevant test. Then we will know whether something dangerous has been discovered. Though people cannot get cancer by eating clams, there could be a danger of getting the same or similar cancer by swimming in water contaminated by the cells.
Biology by Ty Buchanan
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            Australian Blog   Adventure Australia

Replace the International Whaling Commission

The problem with the International Whaling Commission (IWC) is that it is too bureaucratic and pussy foots around still toying with the concept of "scientific" whaling. All research on whales should be banned and have done with it. Leave the mammals alone and they will look after themselves. They do not need human intervention.

Of course, finding that Japan was not practicing scientific whaling left the door open for them to change their methods and continue slaughtering the defenseless creatures. Unfortunately, the IWC was never set up to stop the killing. It was meant to manage the widespread industry in the 1940s.

The moratorium and having whale sanctuaries in the Antarctic have failed, as Japan keeps bending the rules. Japan continues to rave and jump up and down about their culture. Since when has culture been part of lawmaking - it never has been.

The IWC is far too soft and it exists because the industry still exists. Set up a completely new body with tough laws that completely bans interference in the life of whales. Even whale watching should be banned. People do not have the right to such a "freedom". Do they have the freedom to shoot elephants? No they don't!
 Environment by Ty Buchanan 
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     Australian Blog                         

Australia's Marine Resource

As fertile land becomes "all used up" with increasing demand for food we will rely more on the sea for nourishment, after we experiment with eating insects of course. Marine-based industries care little about the consequences of their actions at the moment. This has to change to make the oceans a renewable resource.

Australia has the third largest controlled ocean territory in the world. This country has more responsibility than most countries. We allow nations to fish our waters but foreign fishing fleets seldom stay within the rules that are set. Overfishing is common.

The Great Barrier Reef and Ningaloo are World Heritage Areas. We will have to protect and regulate more region around the coast of this vast continent. This may be selfish as we have a low population that enjoys to swim, dive, surf, sail and fish on an individual basis. However, with control comes responsibility.

Australia's marine industry will rise from about A$40 billion to A$100 billion or more by 2025, just a decade away. Although there is a lot of land here, much of it is not fertile enough for crops. The oceans are just "sitting there" waiting to be exploited. As more pressure comes upon it the health of the planet must be considered. The sea has soaked up a third of the carbon dioxide we have produced since the 18th century and 90 per cent of the extra heat from human activity in the last 50 years.
Conservation by Ty Buchanan
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     Australian Blog                         

Global Warming Threatens Native Marine Species

As meteorologists tell us that natural disasters are becoming regular occurrences due to climate change, so the threat to certain animals species increases. Marine animals are in serious danger. The sea is warming up.

It is accepted that whales beaching themselves is "normal". However, dugong doing the same thing is not. CSIRO which is always at the forefront of Australian research says that south-eastern and north-western sea regions around Australia have become significantly warmer.

As some species move or even die out and new species arrive the ecological dynamic is disrupted. Death from new diseases becomes the norm. New species eat the food that native creatures eat, so marine animals that have been in the same place for thousands of years are doubly threatened.

The future looks bleak. The climate could level off and remain changed but stabilize. On the other hand, change could be ongoing and the variation in marine species could decline. This could affect food supplies for people.
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Australian Blog                         

Dog Eat Lobster

"No, I can't eat it with this"
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Funny Animal Photos
-------Australian Blog-------

Life Began on Land

Life may have begun on land not in the sea, Multicellular fossils, ancestors of marine life, lived on land. These were microbial colonies like lichen. Ediacaron fossils over 600 million years old have been found in South Australia.

High-tech investigative technology showed the ancient forebears lived on land. The soil they were in had "old elephant skin' over it. This phenomenon forms in sandstone beds. It is much like the surface of modern sandy deserts with close wavy lines.

Ediacaran fossils were direct ancestors of marine animals, not mammals. The chain of life leading to humans came during the Cambrian era long after these old multicellular fossils. Apparently, the presence of salt and even too much water are barriers to initial life formation. There was more animals diversity on land than in the sea during the Cambrian.
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Higher Carbon Levels in Sea Water Changes Hermit Crab Behavior

More research is proving that the theory of animals becoming bolder with climate is correct.  Sea water is retaining more carbon dioxide.  This is altering the body chemistry of some animals.

Tests were done on the hermit crab and a "toy" of its main predator the octopus.  In a laboratory, hermit crabs were split into two group and put into aquariums.  The water in one aquarium was at a pH of 7.6; the other had a pH of 7.1.  This may seem to be only a small amount of difference in acidity but it was significant on behavior.

The flicking of antennae (testing for danger of preying animals) and oxygen levels were measured.  The hermit crabs in the more acidic pH 7.1 water flicked their antennae less often.  Crabs in the 7.6 aquarium definitely responded much quicker when a toy octopus was dipped into the water.

Visitors at the Third International Symposium on the Ocean in a High-CO2 World had a good laugh at the crab behavior.  A more serious problems could be the declining level of safe hermit crab abodes.  Higher acidity is dissolving abandoned shells that hermit crabs jump into and carry around as homes.
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Marine Biology

Australian Fisheries Management Authority in League With Greenies

If you are a business the Greenies can close you down. It's no good protesting about it. Just accept it, sack your staff, and close. That's the message that comes across in the case of a shark fishery in South Australia.

The Australian Fisheries Management Authority has introduced draconian new rules in its protected zones. It is spelled out that when a "trigger point" is reached everything must stop. The authority took the advice of environmentalists and reduced the number of deaths of protected species from 15 down to one as the trigger point.

Because a sea lion was killed the shark fishery must close and apply to reopen in May of 2013. An environmental spokesperson said, "We're pleased that there's now a process in place so that when there are animals killed that steps can be taken in the management of the fishery to make sure that the deaths are limited."

This is shortsighted. Businesses cannot operate in this way. When May 2013 comes around it will not open again. Ex-workers will probably be on unemployment benefits and what little capital that can be gained from a company compulsorily closed will be invested elsewhere.
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Ancient Large Predator With Strange Eyes Found

Weird eyes of an ancient ocean predator have been found in Australia. It was believed that all types of eyes were known. The creature with the unusual eyes has been identified. It was an anomalocaris, a very large shellfish.

They didn't see the world like whales or even fish. Each eye had 16,000 lenses and was three centimeters in diameter. This is more than the 3,000 lense housefly eye, but not as numerous as the dragonfly eye with its 30,000 lenses. Make no mistake though - eye development was like an arms race, the animals with superior eyes reproducing and surviving. The anomalocaris was a good hunter, moving quickly on their prey in clear waters.

This ancient hunter had an odd shape. It had spined claws on each side of the body and two giant claws on its head. Its eyes were on stalks. The mouth was circular with serrations around the edge pointing inward.

The site where it was found, on Kangaroo Island, holds more strange animals to be investigated. These were the earliest of species, too old to be satisfactorily classified into known animal groups.
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Australian Researcher Discovers a New Chlorophyll

A new form of chlorophyll has been identified in Shark Bay stromatolites by Min Chen of the University of Sydney. She has been awarded the Science Minister's Prize for Life Scientist of the Year.

Chlorophyll had previously been found in four forms. It is a plant pigment that makes sugar giving energy to plants. The new type called chlorophyll f operates in the upper red end of the visible spectrum. Future uses include solar cells and new kinds of food crops.

The new type of chlorophyll was found by studying cyanobacteria within stromatolites. It was an accidental discovery. The intention was to understand more about chlorophyll d. Both types of chlorophyll are similar, but have different bonding structures.
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Plastic Resin Pellets Pollute Western Australian Beaches

Western Australian beaches are in the throws of an ecological disaster. Tiny pellets of plastic resin are in the environment which absorb industrial chemicals particularly pesticides. The pellets are a bi-product of plastic drink bottle manufacturing.

There is real danger that Bisphenol A will create estrogen leading to infertility. Bisphenol A was first found in plastic in the 1950s. Such plastic is now found everywhere. It is not known how or even if marine animals consume the plastic. Other chemicals, many estrogenic, are put into bottle plastic for flexibility, color and other properties. The chemicals are not fully absorbed in the plastic, so they migrate to the surface and escape. It was established several years ago that PCBs, DDT and HCH chemicals. all hormone disruptors. were in plastic resin pellets.

Australia is playing a "waiting game", watching to see what other countries do in regard to these pellets. Many people are not worrying because the pellets blend into the sand being small and a similar color. Stopping production in Australia will not do any good: many pellets drift here from other countries.
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