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Hybrid crappie (Pomoxis annularis × nigromaculatus) have been cultured and occur naturally. [22] The crossing of a black crappie female and white crappie male has better survival and growth rates among offspring than the reciprocal cross does. [22] Hybrid crappie are difficult to distinguish from black crappie by appearance alone.
The dorsal fins of the white crappie start farther back on the body than those of the black crappie. The anal fin is about the same size as the dorsal fin. [7] The white crappie has six dorsal fin spines, whereas the black crappie has seven or eight dorsal fin spines. [7] White crappies are also slightly more elongated than black crappies. [8]
Black crappie. The black crappie (Pomoxis nigromaculatus) is a freshwater fish found in North America, one of the two types of crappies. It is very similar to the white crappie (P. annularis) in size, shape, and habits, except that it is darker, with a pattern of black spots. Alternate names for the species include calico bass, speck, speckled ...
The single-window system or single-window concept [1] is a trade facilitation concept which allows an international (cross-border) trader to submit information to a single agency, rather than having to deal with multiple agencies in multiple locations to obtain the necessary papers, permits, and clearances to complete their import or export processes.
Description. Generally silvery-white in color, hence the name, depending upon habitat and size specimens have begun to develop a darker shade near the dorsal fin and along the top of the fish. This sometimes earns them the nickname "black-back". White perch have been reported up to 49.5 cm (19.5 in) in length and weighing 2.2 kg (4.9 lb).
A hybrid striped bass, also known as a wiper or whiterock bass, is a hybrid between the striped bass (Morone saxatilis) and the white bass (M. chrysops).Hybrid striped bass are considered better suited for culture in ponds than either parent species because they are more resilient to extremes of temperature and low dissolved oxygen, [1] although they gravitate toward areas of moving water ...
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Centrarchidae, better known as sunfishes, is a family of freshwater ray-finned fish belonging to the order Centrarchiformes, native only to North America.There are eight universally included genera within the centrarchid family: Lepomis (true sunfishes), Micropterus (black basses), Pomoxis (), Enneacanthus (banded sunfishes), Centrarchus (type genus, consisting solely of the flier C ...