ESOX LUCIUS (PIKE)​

CLASSIFICATION OF ESOX LUCIUS (PIKE)​

Phylum :- CHORDATA (Notochord and dorsal tubular nerve cord present and gill-slits present).

Group :- CRANIATA (Cranium with brain present).

Subphylum :- VERTEBRATA (Vertebral column present).

Division :- GNATHOSTOMATA (Jaws and paired appendages present).

Super class :- PISCES (Paired fins , gills and skin with scales)

Class :- OSTEICHTHYES (Bony fishes).

SUB-CLASS :- ACTINOPTYERGII (Ray finned fish).

SUPER ORDER :- HOLOSTEI (Bony ganoids).

Order :- HAPLOMI  (Fins with soft rays. Pelvic fin abdominal. Air bladder communicates with pharynx). 

FAMILY :- ESOCIDAE

GENUS :- Esox

SPECIES :- lucius

GEOGRAPHICAL DISTRIBUTION

  • Esox is abundantly found in Europe, Northern Asia and U.S.A.-Arkansas and Minnesota eastward and Eurasia. Jurassic to Recent. The fossils are known as early as the Oligocene in Europe.

HABIT AND HABITAT

  • Esox is a marine fish, carnivorous, predacious and noted for their voracity.

ESOX LUCIUS (PIKE)​

GENERAL CHARACTERSTICS OF ESOX LUCIUS (PIKE)​

  • Commonly called as pike, measures 3 meters in length and weight 45 kgs.
  • Body elongated, divided into head, trunk and tail. Head produced into snout. Head contains eye nostril and mouth. 
  • Mouth large and margin of upper jaw formed by premaxillaries and toothless maxillaries.
  • Branchiostegal rays 10 to 20; nasal present; vertebrae 43 to 67. (5) Supra-occipital is in contact with the frontals. 
  • Opercular bone is well developed. Infra-orbital canal with eight or more pores. 
  • Single dorsal fin and anal fins near tail end. Tail contains caudal fin. 
  • Pectoral fins inserted very low pelvic fins between pectoral and anal fins.
ESOX LUCIUS (PIKE)​

SPECIAL FEATURE

  • Pyloric caeca absent. These slender bodied fishes are with large mouths and conspicuous teeth. Some forms grow upto 2.5 m and over 50 kg forming choice game fish.

IDENTIFICATION

  • This fish has far back dorsal and anal fins and above features, hence it is Esox.
ESOX LUCIUS (PIKE)​
ESOX LUCIUS (PIKE)​
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