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Dorosoma chavesi Meek, 1907 Nicaragua gizzard shad |
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photo by
FAO |
| Family: | Dorosomatidae (Gizzard shads and sardinellas) | |||
| Max. size: | 18 cm SL (male/unsexed) | |||
| Environment: | pelagic; freshwater | |||
| Distribution: | Central America: Nicaragua (lakes Managua and Nicaragua and affluent streams or rivers) and Costa Rica. | |||
| Diagnosis: | Dorsal spines (total): 0-0; Anal spines: 0-0; Anal soft rays: 24-30. Body moderately deep; belly with 15 to 18 + 9 to 12 scutes. Mouth relatively large; lower jaw comparatively long, upper jaw reaching to vertical from eye center. Last dorsal fin ray long, but less than distance from snout tip to pelvic fin base; anal fin moderately long. Scales small, somewhat irregular. A dark spot behind gill opening. Gill rakers fine and numerous. | |||
| Biology: | Occurs in rivers and lakes. A filter-feeder, its feeding and breeding habits presumably similar to other Dorosoma species. More data needed. | |||
| IUCN Red List Status: | Near Threatened (NT); Date assessed: 28 February 2017 (B1ab(iii)) Ref. (130435) | |||
| Threat to humans: | harmless | |||