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Observations on Pelagic Fishes off the West Coast of Africa
Abstract
Sightings of bird flocks, fish schools, and other phenomena were recorded northward along the west coast of Africa from about 15°S, and across the Gulf of Guinea. Several species of pelagic fishes were caught on trolled lures. A BT transect westward across the Gulf of Guinea relates the water temperatures to the observations and catches of fishes.
... Primarily a parasite of scombrids (Cressey et al. 1983), it has also been recorded from other widely distributed teleosts such as dolphinfishes Coryphaena sp. (Jensen 1967;Pillai 1984;Williams & Bunkley-Williams 1996;Carbonell et al. 1999) and one elasmobranch species (Dippenaar 2004 ...
Master's dissertation 2015 University of Cape Town
Coryphaena hippurus, the common dolphin, and C. equiselis, the pompano dolphin, have been studied. The specific name equiselis is considered valid, as opposed to the emended form, equisetis. The two species differ markedly in numbers of dorsal and anal rays and lateral-line scales, in morphometric characters which reflect depth, in relative heights of dorsal and anal fins, in the shape of the tooth patch on the tongue, and in the color pattern and head spination of the young. Weights of males and females are similar below about 950 mm, after which males appear heavier. Both species are probably cosmopolitan in warm seas. C. hippurus is most often caught in waters over 70°F. Adults of C. equiselis are seldom caught and are probably more pelagic and more tropical. C. hippurus breeds in summer in the Gulf Stream, earlier in the Caribbean. Young C. hippurus are, paradoxically, less abundant than those of C. equiselis, particularly in the Gulf of Mexico and Florida Current. The sex ratio of C. hippurus is 50:50 in the Gulf Stream, but females apparently predominate in Caribbean sport catches. Stomach analyses show fishes to be the most abundant item in the diet of C. hippurus, with no evidence of selectivity. There is some indication that feeding is inhibited at night.
The stockfish and spiny lobster fisheries of South Africa
- Albert C Jensen
JENSEN, ALBERT C.
1962. The stockfish and spiny lobster fisheries of South Africa. CommI.
Fish. Rev., 24(11): 12-16.
The yellowfin tuna fishery in the eastern tropical Atlantic, preliminary study
- J C Le Guen
- F Poinsard
- J P Troadec
LE GUEN, J. C., F. POINSARD, AND J. P. TROADEC
1965. The yellowfin tuna fishery in the eastern tropical Atlantic, preliminary
study. [TransI. from French by J. P. Wise.] Comml. Fish. Rev., 27
(8): 7-18.
The Atlantic tuna fisheries
The Atlantic tuna fisheries, 1963. Comml. Fish. Rev., 28(5): 1-11.
Fishery oceanography in the tropical Atlantic
- Robert C Wilson
WILSON, ROBERT C.
1962. Fishery oceanography in the tropical Atlantic. Trans. 27th N. Am.
Wildl. nat. Res. Conf.: 351-36].