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Saturday, 1 December 2012

Black Bass

The largemouth bass (Micropterus salmoides) is a species of black bass in the sunfish family native to North America. It is also known by a variety of regional names, such as the brown bass, widemouth bass, bigmouth, black bass, bucketmouth, Potter's fish, Florida bass, Florida largemouth, green bass, green trout, gilsdorf bass, linesides, Oswego bass, southern largemouth and (paradoxically) northern largemouth. The largemouth bass is the state fish of Alabama (official freshwater fish), Georgia, Mississippi, Florida (state freshwater fish), and Tennessee (official sport fish). The largemouth is an olive green fish, marked by a series of dark, sometimes black, blotches forming a jagged horizontal stripe along each flank. The upper jaw (maxilla) of a largemouth bass extends beyond the rear margin of the orbit. In comparison to age, a female bass is larger than a male. The largemouth is the largest of the black basses, reaching a maximum recorded overall length of 29.5 in (75 cm) and a maximum unofficial weight of 25 pounds 1 ounce (11.4 kg). The fish lives 16 years on average.

Black Bass

Black Angelfish

Angelfish Chaetodontoplus melanosoma (Bleeker 1853), Black Velvet Angelfish.Full size angels should not be mixed with other full size angels, unless it is in a tank of at least 180 gallons. A shy species, the Gray Poma Angel is a beautiful Angel popular for its coloration. The Gray Poma is not known to be that hardy in captivity, but if housed in a larger aquarium with use of live rock as the main decor. The chances of adapting are much greater. The Gray Poma Angel is not a good candidate for mixing with other Angels, but will get along in a peaceful community aquarium. A non-aggressive fish in the aquarium, the Grey Poma Angelfish or Black Velvet Angel fish is a good community fish. Female has an entirely yellow caudal fin. Water Conditions: 72-78ºF; sg 1.020-1.025; pH 8.1-8.4.Normal temperatures for marine fish lie between 75 and 79 degrees. The Grey Proma Angelfish groups Up to 7 inches in size. Dwarf Grey Proma Angelfish Are generally available at 2-3 inches. medium 3 to 4; inches; Sizes may vary slightly due to availability. Habitat: The Grey Poma Angelfish or Black Velvet Angelfish are found at the Samurai Island off the eastern tip of New Guinea.

Black Angelfish

Bitterling

Bitterling, (Rhodeus), any of several small, carplike fish of the family Cyprinidae noted for their unusual manner of breeding. Native to clear, stony streams of central and southern Europe, the bitterling is a silvery fish of little economic value, about 5 to 7.5 centimetres (2 to 3 inches) long. It spawns between April and June. At this time, the male develops an orange belly and reddish fins, while the female develops a long, tubular ovipositor, which inserts into the incurrent respiratory siphon of a freshwater clam or mussel and by which she deposits her eggs in the gill chamber of the mollusk. There, they are fertilized by sperm ejected by the nearby male and drawn by the mollusk into the gill chamber along with water for respiration. The eggs develop in the gill chamber of the mollusk, and the young bitterlings leave their host about a month later. The breeding periods of fish and mollusk coincide, and the mollusk in return throws off its larvae onto the bitterling, where they undergo part of their development encysted (buried) in the skin of the fish.

Bitterling

Billfish

The term billfish refers to a group of predatory fish characterised by prominent bills, or rostrums, and by their large size (some are longer than four metres (13 feet)). Billfish include sailfish and marlin, which make up the family Istiophoridae, and swordfish, sole member of the family Xiphiidae. They are apex predators which feed on a wide variety of smaller fish, crustaceans, and cephalopods. Billfish are pelagic and highly migratory. They are found in all oceans, although they usually inhabit tropical and subtropical waters; swordfish are found in temperate waters as well. Billfish use their long spears or swordlike upper jaws or beaks to slash at and stun prey during feeding. Their bills can also be used to spear prey, and have been known to spear boats (probably accidentally), but they are not normally used in that way. They are highly valued as gamefish by sports fishermen.

Billfish