Strongylura
Strongylura is a genus of needlefish found in marine, brackish, and freshwater habitats worldwide. They are characterized by their elongated, slender bodies and long, pointed jaws, which they use to snatch small fish and crustaceans from the water’s surface. Needlefish are typically silvery in color and have a dorsal fin located far back on their body.
Common Names
Members of the genus Strongylura are commonly known as needlefish, garfish, or long-jawed needlefish.
Characteristics
Strongylura species share several distinct characteristics:
- Elongated, slender body: This allows them to move swiftly through the water.
- Long, pointed jaws: These are used to capture prey by darting forward and spearing it.
- Small, cycloid scales: These are smooth and overlapping, reducing friction in the water.
- Dorsal fin located far back on the body: This allows for greater maneuverability.
- Silvery color: This helps them camouflage in the water.
Environment
Strongylura species are found in a variety of aquatic environments, including:
- Marine waters: They are common in coastal areas and estuaries.
- Brackish waters: They can tolerate a range of salinities.
- Freshwater habitats: Some species, like the freshwater needlefish (Strongylura fluviatilis), are found in rivers and lakes.