| 主要参考文献 | Fuentes, H.R., 1981 |
|---|---|
| 附注 | Caught in both shallow and deep waters. Its strong dentition makes it an opportunistic predator, even of hard-shelled benthos as shown by its stomach contents of coarse calcareous remains and detritus (Ref. 11295). |
| Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
|---|---|---|---|---|
| Marine zones / Brackish and freshwater bodies |
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| 基质 | |
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| 基底 参考文献 | |
| 特殊生境 | |
| 特殊生境 编号 |
| 参考文献 | |
|---|---|
| 协会 | |
| 相关联 | |
| 协会备注 | |
| 寄生虫 |
| 摄取食物的类型 | mainly animals (troph. 2.8 and up) |
|---|---|
| 供料类型 参考号 | Fuentes, H.R., 1981 |
| 摄取食物的习惯 | hunting macrofauna (predator) |
| 喂食习惯 参考文献 |
| Estimation method | 最初的样本 | 不捕获族群 | 附注 | ||
|---|---|---|---|---|---|
| Troph | s.e. | Troph | s.e. | ||
| 从食物内容 | 4.17 | 0.17 | 3.71 | 0.49 | Troph of juv./adults from 1 study. |
| 从个别的食物项目 | 3.37 | 0.55 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
| 参考文献 | Medina, M., M. Araya and C. Vega, 2004 | ||||