Table 2.
Semen collection by month for aquarium and in situ sand tiger sharks Carcharias taurus.
| Jan | Feb | March | April | May | June | July | Aug | Sept | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Aquarium (n = 24) | ||||||||||||
| Sharks | 3 | 12 | 6 | 6 | 15 | 6 | 10 | 6 | 6 | 3 | 1 | |
| Collection attempts | 3 | 13 | 8 | 8 | 17 | 11 | 15 | 6 | 7 | 5 | 1 | |
| Semen obtained | 0% | 31% | 25% | 38% | 88% | 36% | 27% | 17% | 14% | 0% | 0% | |
| Motility observed | 0% | 23% | 25% | 25% | 65% | 36% | 0% | 0% | 0% | 0% | 0% | |
| Spermatophores present | 0% | 8% | 13% | 13% | 71% | 36% | 7% | 0% | 0% | 0% | 0% | |
| In situ (n = 34) | ||||||||||||
| Sharks | 17 | 7 | 7 | 3 | ||||||||
| Collection attempts | 17 | 7 | 7 | 0 | ||||||||
| Semen obtained | 100% | 100% | 86% | 0% | ||||||||
| Motility observed | 100% | 100% | 86% | 0% | ||||||||
| Spermatophores present | 100% | 86% | 57% | 0% | ||||||||