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The blue-spotted jawfish (Opistognathus rosenblatti) is a species of jawfish native to the Gulf of California. It is an inhabitant of reefs where it is found in large colonies at depths of around 12 metres (39 ft). This species hides in its burrow at night, completely sealing the entrance. Every morning, it rebuilds the burrow entrance.
With the exception of the blue-spotted jawfish O. rosenblatti, [2] Jawfishes are mouthbrooders, meaning their eggs hatch in their mouths, where the newborn fry are protected from predators. The gestation period varies between species. Gold-specs jawfish (Opistognathus randalli) typically keep their clutch of eggs for 8–10 days before hatching.
Opistognathus castelnaui Bleeker, 1860 (Castelnau's jawfish) Opistognathus crassus Smith-Vaniz, 2010 (Stout jawfish) [2] Opistognathus cryos Su & Ho 2024; Opistognathus cuvierii Valenciennes, 1836 (Bar-tail jawfish) Opistognathus cyanospilotus Smith-Vaniz, 2009 (Blue-blotch jawfish) Opistognathus darwiniensis W. J. Macleay, 1878 (Darwin jawfish)
The yellowhead jawfish (Opistognathus aurifrons) is a species of jawfish native to coral reefs in the Caribbean Sea. It is found at depths of from 3 to 40 metres (9.8 to 131.2 ft). The head and upper body are a light, but brilliant, yellow color slowly fading to a pearlescent blue hue. It can reach a length of 10 centimetres (3.9 in) TL. [2]
Blue Angelfish has an overall aqua hue with a yellow shimmer and yellow edges on the fins and scales. The Blue Angelfish does not have the striking blue crown or other blue highlights of the Queen Angelfish. This species has been known to reproduce with the Queen Angelfish, making a half breed that looks like a mixture between the two species.
The blue catfish (Ictalurus furcatus) is a large species of North American catfish, reaching a length of 65 in (170 cm) and a weight of 143 lb (65 kg). [4] The continent 's largest catfish, it can live to 20 years, with a typical fish being between 25–46 in (64–117 cm) and 30–70 lb (14–32 kg).
The Atlantic goliath grouper was historically referred to as the "jewfish", and there are several theories as to the name's origin. A 1996 review of the term's history from its first recorded usage in 1697 concluded that the species' physical characteristics were frequently connected to "mainstay caricatures of anti-Semitic beliefs", whereas the interpretation that the fish was regarded as ...
Coloration is a grayish blue-green dorsally, fading to white on the lower sides and belly. Its single row of teeth in each jaw is uniform in size, knife-edged, and sharp. Bluefish commonly range in size from seven-inch (18-cm) "snappers" to much larger, sometimes weighing as much as 40 lb (18 kg), though fish heavier than 20 lb (9 kg) are ...