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Adults of the species are typically found in quiet waters with rocky bottoms in inshore and offshore reefs at a depth of 1 to 50 m (3 ft 3 in to 164 ft 1 in), although juveniles may sometimes be found in surge pools. It is a benthopelagic species, with adults being known to form schools. The species feeds on a variety of algae and zooplankton.
The classification of the Indo-Pacific blue marlin (M. mazara) and the Atlantic blue marlin (M. nigricans) as separate species is under debate. [1] Genetic data suggest, although the two groups are isolated from each other, that they are both the same species, with the only genetic exchange occurring when Indo-Pacific blue marlin migrate to and ...
It cannot get past waterfalls so tends to occur in the lower and mid-catchments of river systems where it prefers steep fast-flowing streams. [1] The juveniles leave the sea for freshwater at around 20 millimetres (0.79 in) in standard length and the females mature at standard length 95.5 millimetres (3.76 in) and males at 83.5 millimetres (3. ...
Catalog of Fishes is a comprehensive on-line database and reference work on the scientific names of fish species and genera. It is global in its scope and is hosted by the California Academy of Sciences. It has been compiled and is continuously updated by the curator emeritus of the CAS fish collection, William N. Eschmeyer.
The book does not contain any color illustrations. The fourth edition was the first to incorporate the wide use of DNA analysis, revising many earlier classifications. The first edition appeared in 1976, the second in 1984, the third in 1994 ( John Wiley & Sons , ISBN 0-471-54713-1 ), the fourth in March 2006 ( ISBN 0-471-25031-7 ), and the ...
Many species of salmon are anadromous and can migrate long distances up rivers to spawn Allowing fish and other migratory animals to travel the rivers can help maintain healthy fish populations. Fish migration is mass relocation by fish from one area or body of water to another. Many types of fish migrate on a regular basis, on time scales ...
Range Scomber australasicus. The blue mackerel is found in tropical and subtropical waters of the Pacific Ocean from Japan south to Australia and New Zealand, in the eastern Pacific (Hawaii and Socorro Island, Mexico), and the Indo-West Pacific: the Red Sea, the Persian Gulf, the Gulf of Oman and the Gulf of Aden, in surface waters down to 200 m (660 ft).
The sauger (Sander canadensis) is a freshwater perciform fish of the family Percidae that resembles its close relative, the walleye. The species is a member of the largest vertebrate order, the Perciformes. [3] It is the most migratory percid species in North America. [4]