9 Nisan 2016 Cumartesi

Snook, Pacific Centropomus spp

Snook, Pacific Centropomus spp


CENTROPOMIDAE FAMILY
Also called robalo; (western Atlantic and Gulf of Mexico: C. parallelus Poey, 1860, fat; C. pectinatus Poey, 1860, tarpon; C. undecimalis (Bloch, 1792), common; C. mexicanus Bocourt, 1868, Constantino or Guianan ; C. ensiferus Poey, 1860, swordspine or swordfin; C. poeyi Chávez, 1961, Mexican and (eastern Pacific: C. nigrescens Günther, 1864, black snook; C. unionensis Bocourt, 1868, humpback or union; C. armatus Gill, 1863, longspine; C. viridis Lockington, 1877, white; C. medius Günther, 1864, blackfin; C. robalito Jordan & Gilbert, 1882, yellowfin)

The genus Centropomus is confined to the American tropics and subtropics. Six species occur in the Atlantic and six in the Pacific. None occur in both oceans. They inhabit shallow coastal waters, estuaries and brackish lagoons, often penetrating far inland in fresh water. Their movements between fresh and salt water are seasonal, but they stay close to shore and never stray far from estuaries.

They are very distinctive and it would be difficult to confuse them with any other fishes. The lower jaw protrudes and a highly prominent black lateral line runs from the top of the gill cover along the sides and all the way through the tail. The body is compressed and the snout depressed and pike like. Two dorsal fins are separated by a gap. The second anal spine is conspicuous, spurlike, much thicker than the first and third. The margin of the preopercle is serrate, with 1 5 enlarged denticles at angle.

One of the axioms relating to fish species is that the colors will likely be variable depending on season, habitat, and/or any number of other conditions. The snook is no exception. The back of the snook may be brown, brown gold, olive green, dark gray, greenish silver, or black, depending largely on the areas the fish inhabits. The flanks and belly are silvery.

Its diet consists mainly of fish and crustaceans. Fishing methods include trolling or casting artificial lures or still fishing with live baits like pinfish, mullet, shrimp, crabs, or other small fish. Best fishing is said to be on the changing tide, especially high falling tide around river mouths and coastal shores and night fishing from bridges and in ocean inlets. A flooding or rising tide is more productive at creek heads.

An excellent table fish with delicate, white, flaky meat, it is a member of the Centropomidae family, which also includes the 200 lb (90.72 kg) Nile perch (Lates niloticus) and the barramundi (Lates calcarifer). It usually matures by the third year and has a life span of at least seven years. It is very sensitive to temperature and may not survive at temperatures below about 60oF (15oC).

24 Mart 2016 Perşembe

Perch, Nile Lates niloticus

Perch, Nile Lates niloticus
Linneaus, 1758

CENTROPOMIDAE FAMILY
Also called giant perch, Niger perch

Endemic to the African continent, they can be found in rivers and lakes in tropical regions. It is known to be present in the Blue and White Niles, the Niger and Benue rivers, and in lakes Rudolph, Albert, Tanganyika, Fayoum, and Menzaleh. Good Nile perch fishing is well known below the Aswan Dam and at the junction of the Blue and White Niles. Until recently, there were no Nile perch in Lake Victoria, but recent introductions of this species into Lake Victoria have been extremely successful, and the species is said to be prolific there now due to the availability of plentiful forage fish.

It looks very much like a larger version of the barramundi, in fact, they are close relatives in the Centropomidae Family. Adults Nile perch are generally brown to greenish brown above and silvery below. The top of the head is strongly depressed, as in the barramundi and its relative across the sea, the snook. It has a rounded (convex) tail.

Fish of 6.5 ft (2 m) long and weighing 176 lb (80 kg) have been caught and recorded by native fishermen and are said to be common. Much larger ones, up to 500 lb (226.8 kg) have been taken in nets but have gone unrecorded.

Fishing for Nile perch is best early or late in the day. Tigerfish and tilapia are common baits. Known for long, hard, powerful runs, the Nile perch provides the angler with the added benefit of being an excellent and popular eating fish with a tasty white meat

19 Şubat 2016 Cuma

Snook, Atlantic Centropomus spp

Snook, Atlantic Centropomus spp


CENTROPOMIDAE FAMILY
Also called robalo; (western Atlantic and Gulf of Mexico: C. parallelus Poey, 1860, fat; C. pectinatus Poey, 1860, tarpon; C. undecimalis (Bloch, 1792), common; C. mexicanus Bocourt, 1868, Constantino or Guianan ; C. ensiferus Poey, 1860, swordspine or swordfin; C. poeyi Chávez, 1961, Mexican and (eastern Pacific: C. nigrescens Günther, 1864, black snook; C. unionensis Bocourt, 1868, humpback or union; C. armatus Gill, 1863, longspine; C. viridis Lockington, 1877, white; C. medius Günther, 1864, blackfin; C. robalito Jordan & Gilbert, 1882, yellowfin)

The genus Centropomus is confined to the American tropics and subtropics. Six species occur in the Atlantic and six in the Pacific. None occur in both oceans. They inhabit shallow coastal waters, estuaries and brackish lagoons, often penetrating far inland in fresh water. Their movements between fresh and salt water are seasonal, but they stay close to shore and never stray far from estuaries.

They are very distinctive and it would be difficult to confuse them with any other fishes. The lower jaw protrudes and a highly prominent black lateral line runs from the top of the gill cover along the sides and all the way through the tail. The body is compressed and the snout depressed and pike like. Two dorsal fins are separated by a gap. The second anal spine is conspicuous, spurlike, much thicker than the first and third. The margin of the preopercle is serrate, with 1 5 enlarged denticles at angle.

One of the axioms relating to fish species is that the colors will likely be variable depending on season, habitat, and/or any number of other conditions. The snook is no exception. The back of the snook may be brown, brown gold, olive green, dark gray, greenish silver, or black, depending largely on the areas the fish inhabits. The flanks and belly are silvery.

Its diet consists mainly of fish and crustaceans. Fishing methods include trolling or casting artificial lures or still fishing with live baits like pinfish, mullet, shrimp, crabs, or other small fish. Best fishing is said to be on the changing tide, especially high falling tide around river mouths and coastal shores and night fishing from bridges and in ocean inlets. A flooding or rising tide is more productive at creek heads.

An excellent table fish with delicate, white, flaky meat, it is a member of the Centropomidae family, which also includes the 200 lb (90.72 kg) Nile perch (Lates niloticus) and the barramundi (Lates calcarifer). It usually matures by the third year and has a life span of at least seven years. It is very sensitive to temperature and may not survive at temperatures below about 60oF (15oC).