| อ้างอิงหลัก | Compagno, L.J.V., 1984 |
|---|---|
| ข้อสังเกต | Viviparous. Fish is main food source but occasionally eats cephalopods and pelagic crustaceans (Ref. 127989). Often found over deepwater reefs and near insular slopes. When approached by divers, individuals have been seen to perform a 'hunch display', with back arched, head raised and caudal fin lowered, possibly as a defensive threat display. Associated with schools of tuna, causing damage to nets and catches. Referred to as the `net-eater shark' in the tropical eastern Pacific. Also in Ref. 9137. |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
|
|
|
|
| Substrate | |
|---|---|
| Substrate Ref. | |
| Special habitats | |
| Special habitats Ref. |
| อ้างอิง | |
|---|---|
| Associations | |
| Associated with | |
| Association remarks | |
| Parasitism |
| วิธีการให้อาหาร | mainly animals (troph. 2.8 and up) |
|---|---|
| Feeding type Ref. | Compagno, L.J.V., 1984 |
| นิสัยในการกินอาหาร | hunting macrofauna (predator) |
| Feeding habit Ref. | Compagno, L.J.V., 1984 |
| Estimation method | ตัวอย่างดั้งเดิม | ประชากรที่ยังไม่มีการทำการประมง | ข้อสังเกต | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| จากส่วนประกอบของอาหาร | 4.51 | 4.52 | 0.65 | Troph of adults from 1 study. | |
| จากรายการอาหารของสัตว์แต่ละชนิด | 4.46 | 0.88 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| อ้างอิง | Bowman, R.E., C.E. Stillwell, W.L. Michaels and M.D. Grosslein, 2000 | ||||