twaite shad
| Scientific name | Alosa fallax |
|---|---|
| Descriptor | Lacepède |
| Year of description | 1803 |
| IUCN category | LC |
| Family | Clupeidae |
| Genus | Alosa |
Introduction
Alosa fallax, commonly known as twaite shad, is a fresh water, brackish water and salt water fish.
Who is it?
Morphology
-
Average size40 cm
-
Maximum size60 cm
-
Longevity8 year
-
Patterntasks
-
Average size40 cm
-
Maximum size60 cm
-
Longevity8 year
-
Patterntasks
How to recognize the twaite shad ?
The twaite shad measures around 40 cm. The females are more imposing and some specimens can reach 60 cm. This fish is unicolore with a predominantly argent body. The also has noir tasks.
Sexual dimorphism
The female is bigger than the male.
Behaviour & Life cycle
-
dietcarnivorous
-
Sociabilityliving in shoals
-
territorialNo
-
Way of livingnocturnal
This species is known to emit sounds easily audible by humans.
The twaite shad is a fish living in shoals naturally found at mid-depth. This species is carnivorous . This fish lives mainly at night. Usually, it leaves its hiding place and starts to be active once it gets dark.
n general, this species does not care much about other animals crossing its path.
Reproduction
-
Reproductionovipare qui pond en eau libre
-
Migratory speciesYes
The twaite shad is a fish ovipare qui pond en eau libre.
Harmless species
This species does not represent any particular threats to humans when encountered in its natural environment.
Where to find it?
What is its habitat?
Natural environment characteristics
-
Temperature10 - 25 °C
-
Depth10 - 400 m
-
FlowMedium and Slow
Biotope presentation
The twaite shad is most often found at a depth between 10m and 400m. However, it is not impossible to find this species at other depths.
To go further
Species of the same family
european pilchard
Clupeidae
To read on the web
Sources & Contributions
Participation & Validation
The Fishipedia team and specialist contributors are committed to providing high-quality content. However, although the information comes from scientific sources or testimonials from specialists, the cards may contain inaccuracies.
Benoit Chartrer
Translation
Translation done with the valuable contribution of our translators, who make this information available to a wider audience. We sincerely thank them for their commitment.
Bibliographic references
Biology, Status, and Conservation of the Anadromous Atlantic Twaite Shad Alosa fallax fallax - MIRAN W. APRAHAMIAN - JEAN-LUC BAGLINIÈRE - M. RICHARD SABATIÉ - PAULO ALEXANDRINO - RALF THIEL - CHRISTINE D. APRAHAMIAN - American Fisheries Society Symposium - 2003.
TIMING OF MIGRATION AND EXCEPTIONAL GROWTH OF YOY ALOSA FALLAX RHODANENSIS (ROULE, 1924) IN A LAGOON IN SOUTHERN FRANCE. - A.J. CRIVELLI - G. POIZAT - Bull. Fr. Pêche Piscic. - 2001.
DONNÉES RÉCENTES SUR LES CARACTÉRISTIQUES MORPHOLOGIQUE S ET BIOLOGIQUES DE LA POPULATION D'ALOSE FEINTE D U RHÔNE (ALOS4 FALLAX RHODANENSIS ROULE, 1924). - M . L E CORRE - J.L . BAGLINIÈRE - R. SABATIÉ - J.Y. MENELLA - D. PONT - Bull. Fr. Pêche Piscic. - 1997.
Tags
Species of the same family
european pilchard
Clupeidae
Species of the same biotope
Scientific partners