2006年VOA标准英语-Sex in the Sea

（单词翻译）

By Paul Sisco
Key Largo¹, Florida
23 August 2006
 
watch Coral report

It may not be romantic, but it really is quite fascinating.  Generally a few days after the full moon in August, an amazing event takes place off the Florida Keys. 

Coral growing off the coast of Key Largo, Florida   
  
It's a late-night annual event, triggered in part by the August full moon.

Coral spawning³ is described by some scientists as an explosion of eggs and sperm⁴.  This year researchers at the Florida Keys National Marine⁵ Sanctuary⁶ are collecting coral spawn² to study and reproduce coral in the laboratory.  Test tube baby coral will then be used to restore damaged reef in the shallow waters near Key Largo, Florida.

 
Margaret Miller⁷
  
Ecologist Margaret Miller explains. "We are working to develop ways to grow new corals; to settle onto reefs where most of them have been lost, particularly focusing on species of corals that don't recruit well on their own."

Miller says scientists are learning more about the coral spawning, fertilization, and development each year.  After collection, embryos⁸ are cultured in the lab for about a week, developing from fertilized⁹ eggs to full-fledged larvae¹⁰. 

Coral growing in culture dishes at the lab  
  
"Then in about a week we hopefully will have lots of healthy larvae that are ready to settle on to the reef. And we'll take them back out into the field and sort of temporarily enclose them, actually at a reef restoration structure, and hopefully they'll be able to settle and make their home there to  provide new home colonies for that restoration site."

The researchers are experimenting with mesh¹¹ tents over the seeded coral to help them survive. 

Coral colonies die each year from human disturbances¹² and natural causes such as hurricanes and disease.  More than 1500 square meters of reef were destroyed when a freighter grounded nearby. 

 
Nets are being used as a means to protect the fragile seeded coral
  
"There has been a huge decline in live coral cover and the number of corals that are on the coral reefs over the past several decades," says Miller. "Corals are the animals that build the structure of a coral reef.  Without corals that structure and habitat gradually is lost, and so the habitat for fishes and other important organisms.  A huge component¹³ of biodiversity is lost gradually if the corals are not continuing to construct that habitat, and so we are aiming to bring those live corals back."

Researchers say they have a lot to learn about coral and its life cycle.  They hope their work will improve the coral's ability to survive and thrive.