| Location: | Pacific |
| Subject: | Marine science |
| Length: | 30 minutes |
| Format: | Video |
| Hue: | |
| Year Released: | 1985 |
| Series: | |
| Director: | |
| Producer: | Southern California Consortium |
| Distributor: | ACT Media |
| Library Code: | |
| Description: | The sparkling blue waters characteristic of tropical zones are virtually devoid of the nutrients required to support the adequate plankton crop that is vital in sustaining sea life. Nevertheless, the most successful biological structures on earth, the coral reefs, are found only in tropical waters. |
| Record No: | 2187 |
| Resources: | Distributors's List |
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