Does collecting for the aquarium trade endanger species?
Generally, no. Most aquarium fish are collected by artisanal fishing methods
such as small hand nets, by hand or even hook and line. In the Amazon most
fish collected are sustainable resources. People involved are
almost always local. The income they gain from the fish in their local
rivers is more than they would earn otherwise. These jobs are also non
destructive to the habitats, unlike other available jobs such as logging,
gold mining, commercial (food) fishing boats and even worse - farming soy or
cotton.
In very rare examples a highly endemic fish may be over-fished for the aquarium trade, but such cases are extremely
uncommon. In fact, buying a wild collected fish from
the Amazon helps to protect the forest, since communities involved in the
trade are careful not to harm their cash crop by allowing illegal mining or
logging activity to destroy the habitat.
The fish, their habitats and
local population go hand in hand. There are not many places on the
planet without humans, so to protect a region, the inhabitants,
their rights and progress must be considered first. For more information click here.
Are there industrial pollution problems in these rivers?
Yes. Any place, especially those where gold is mined, even on a small scale is in peril. In addition large scale mining for gemstones, bauxite (aluminium ore) and others are a huge threat to the habitats. Places where cotton or soy (also grown for biofuel) are grown are devastated by various chemicals used as pesticides, insecticides and fertilizer. Google Earth is a good way to see the destruction caused by the farming in the Mato Grosso.
What can ordinary people do to help save the Amazon?
Besides the obvious donations to organizations involved with Amazon and
Worldwide conservation, you can get involved directly by helping to lobby
our politicians to not only put pressure on foreign governments but also on
our industry. Because the destruction in the Amazon is not only at the hand
of the local people, but much of it is caused by Western companies who make
their money on us. Be aware that a term like biofuel implies that the
product has not harmed the environment, but that is not really the case.
Could places to start are some of the non profit projects in the links
section.
Sustainable tourism is also a good way to show people that conserving their
environment is beneficial to them. Most of the Amazon is a very safe place
and going to see the Amazon first hand to support local ecotourism projects
is a great way to benefit conservation.
Does the amount of rain vary from year to year?
Yes, there are years of extreme flooding in some regions, as well as years of extreme drought.
In the course of a year is there much variation water temperature?
Not much, although sustained days of rain will bring cooler temperatures to the region. Closer to the Andes in the Western Amazon temperatures can drop due to wind bringing cold air from the mountains. Most of the year is similar to a Florida summer, with higher humidity. Temperatures in the forest under the forest canopy are always cooler by several degrees.
OR... What do you mean when you mention cooler water in this region?
Forest streams are often in the low or mid 20s (in centigrade), temperatures may be in the high 20s or even 30s in the sun. Mountain streams in the west can be downright cold, with temperatures in the low teens.
Are freshwater dolphins endangered?
Not yet, unlike the near extinct freshwater dolphin in the Mekong. The Amazonian people do not hunt or eat the freshwater dolphin, so there is no direct threat from the human population (there is from over-fishing their food source, pollution, deforestation etc). The Amazon Manatee however is actively hunted, and in much greater peril.
Which films or documentaries on the Amazon do you suggest?
Besides the obvious ones of National Geographic there are some great documentaries produced by the BBC in the UK and NHK Japan, some of these are occasionally available on video. For feature films I think The Mission (1986, Roland Joffé), and Fitzcaraldo (1982, Werner Herzog) give an interesting view of the early days of Westerners in the Amazon.
Are there a lot of ducks or waterfowl in the river?
There are ducks and many birds along the Amazonian rivers, but they are more common in the Llanos, Pantanal and swampy regions. Generally various species of herons, anhingas (snakebirds) and kingfishers are the most commonly seen birds.
How dangerous are piranhas?
Piranhas do not really pose a lethal threat to humans. Occasionally piranhas will bite the feet or legs of people in the water, but it is only on rare occasions that local people will advise against swimming somewhere because of piranhas. Only one species found in the Rio Sao Francisco (Pygocentrus piraya), is generally regarded as dangerous by locals. The stingrays however are a real danger and much hated by most local people. I have seen terrible infections and damage caused by stings everywhere in the Amazon.
For further reading on Amazon Rivers, what do you suggest?
Smithonian Atlas of the Amazon, by M.Goulding, R.Barthem, and E.Ferreira
Floods of Fortune, by M.Goulding
Origin of Species, by C.Darwin
The Lost World Of the Amazon, by F.Eichhorn
Brazilian Adventure, by P.Fleming
iwokrama.org – Rainforest Conservation and Sustainable Development Program in Guyana.
rainforest-alliance.org – Conservation and sustainable development worldwide.
amazonia-andina.org – Andean Amazon Conservation.
mamiraua.org.br – Sustainable development on the Amazon Floodplain.
wwf.org – World Wildlife Fund.
internationalrivers.org– Check here for details on the Rio Xingu.
amazonteam.org– Amazon Conservation with partnership of indigenous people.
actionbioscience.org– Great information for teachers and parents on basic conservation issues.
wcs.org – WIldlife Conservation Society Projects in South America.
nature.org– Nature Conservancy Projects in South America.
evolution.berkeley.edu – University of Berkeley resource on Evolution.
arkive.org – Images and information on endangered species.
davidsuzuki.org – Canadian Environmental Organization.
amphibianark.org – Information on global threat to amphibian populations.
iucnredlist.org – World wide list of threatened species.
ran.org – Rainforest Action Network, check here for info on the soy production crisis.
conservation.org – Conservation International, check out info on the Cerrado hotspot in Brazil.
glovis.usgs.gov – USGS Global Visualization Viewer, check here to see satellite images of rainforest destruction.