| FishBase |
| Main Ref: | Macchi, G.J., 1998 | ||||||||||||
| Country: | Argentina | ||||||||||||
| Locality: | El Rincon, Buenos Aires (38°50'S-40°30'S) | ||||||||||||
| Ecosystem: | |||||||||||||
| Absolute Fecundity | Fecundity Type: | ||||||||||||
| min 50,000 | (g) | 40 (cm) TL | Ref: Macchi, G.J., 1998 | ||||||||||
| max 450,000 | (g) | 53 (cm) TL | |||||||||||
| mean | (g) | (cm) | |||||||||||
| Comments on Fecundity: | Batch fecundity. Annual fecundity is indeterminate. Hence, potential annual fecundity is not fixed prior to the onset of spawning. | ||||||||||||
| Relative Fecundity | |||||||||||||
| Min: 50 |
Ref.: Macchi, G.J., 1998 |
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| Mean: |
Ref.: |
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| Max: 420 |
Ref.: |
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| Fecundity/length relationship ( F = a * L ^b): | |||||||||||||
| Size: (cm) | |||||||||||||
| n: | |||||||||||||
| a: | 95% confidence limit: | ||||||||||||
| b: | 95% confidence limit: | ||||||||||||
| r2: | |||||||||||||
| Spawning Cycles: | 22 (1/y) | Ref: Macchi, G.J., 1998 | |||||||||||
| Comments: | Interval between spawnings is 7-9 days (Ref. 27784). Relative fecundity = number of hydrated oocytes/gram of female (ovary-free) (Ref. 27784). Mean relative fecundity: 210 +/-35 oocytes/g ovary-free body weight (Ref. 27784). Spawning season usually lasts for 6 months beginning in October (Ref. 27784). Annual fecundity estimate is 2.0 million eggs for a 40 cm TL female (Ref. 27784). Batch fecundity. Annual fecundity is indeterminate. Hence, potential annual fecundity is not fixed prior to the onset of spawning. | ||||||||||||
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