Main Ref. | Robison, B.H., 1984 |
---|---|
Remarks | Oceanic species found between 700 and 1,500 m during the day; between 20 and 200 m at night (Ref. 4775) with maximum abundance between 50 and 100 m (Ref. 47377). Size stratification with depth both day and night (Ref. 4775). Small juveniles (1.5-1.9 cm) are apparently non-migratory. Known to feed on zooplankton but appears to be adapted for occasional herbivory (Ref. 28809). |
Marine - Neritic | Marine - Oceanic | Brackishwater | Freshwater | |
---|---|---|---|---|
Marine zones / Brackish and freshwater bodies |
|
|
|
|
Substrate | |
---|---|
Substrate Ref. | |
Special habitats | |
Special habitats Ref. |
Ref. | |
---|---|
Associations | |
Associated with | |
Association remarks | |
Parasitism |
Feeding type | mainly animals (troph. 2.8 and up) |
---|---|
Feeding type Ref. | Duka, L.A., 1986 |
Feeding habit | selective plankton feeding |
Feeding habit Ref. |
Estimation method | Original sample | Unfished population | Remark | ||
---|---|---|---|---|---|
Troph | s.e. | Troph | s.e. | ||
From diet composition | |||||
From individual food items | 3.42 | 0.53 | Trophic level estimated from a number of food items using a randomized resampling routine. | ||
Ref. |