One such story I did documented the leatherback sea turtle.

Only one in a thousand leatherback hatchlings will reach maturity.

Then there's George Schillinger and our leatherback team out of Playa Grande tagging leatherbacks that go right past where we are.

For example, revenue from sea turtle tourism at the leatherback nesting beach at Playa Grande, Costa Rica, was 1,121,057 in 2002.

We can't see the corridors, and we can't see what it is that brings together a tuna, a leatherback and an albatross.

Leatherback sea turtles get hooked on longlines and often drown before the line is reeled and the sea turtle can be released.

For example, the reduction in leatherback sea turtles, which feed almost exclusively on jellyfish due to longline fishing has paralleled extensive jellyfish blooms.

But what they can't deal with is anthropogenic stresses, human things, like this picture that shows a leatherback caught at night in a gill net.

Most threatened by industrial longline fishing are leatherback sea turtles which migrate thousands of miles across the Pacific to lay their eggs, feed and reproduce.

It has been estimated that the cost of raising one leatherback to maturity at the nursery in Rantau Abang, Malaysia over the course of 10 years would be 72,632.

The income earned by the residents of Gandoca, Costa Rica, from their conservation efforts amounted to 506 per leatherback turtle, 135.50 per nest and 1.70 per egg deposited on the beach.

Although the fisheries sector in Malaysia employs only 1.5 percent of the total working population and tourism 6.2 percent, high levels of fisheries mortality led to rapid declines in leatherback sea turtles.

A representative of a non governmental organization underlined the near extinction of the leatherback turtle as a result of long line fishing in the Pacific and called for a moratorium on that practice.

Failure to reverse marine turtle decline would imply a replacement cost for nesting females through captive breeding estimated at U.S. 245.9 million 263.3 million for green turtles and 2.5 billion for leatherback turtles.

If Malaysia had prevented the decline in the leatherback nesting population from the over harvesting of eggs, it is estimated that gross revenue from tourism could have been 14 times its current amount, equivalent to 7,031,335 in 2002.

According to recent scientific reports, the number of nesting female Pacific leatherback sea turtles has declined by 95 percent since 1980 and is expected to go extinct within the next 5 30 years unless efforts are taken to reverse their decline.

The cost of rearing turtles in captivity suggests that conservation of marine turtles in the wild is less expensive. In effect, the necessary cost to recover the critically endangered leatherback sea turtle is equal to one half the global annual revenue earned by longline fishing, the largest threat to its survival.