The Biology and Culture of Tilapias
possibility that such a mechanism may have been responsible for at least some of the adaptive radiation in African cichlids, as ...
Table 3 (cont.) S. lidole L. Malawi S. mossambicus Egypt S. mossambicus Hong Kong S. mossambicu~ Sri Lanka S. mossambicus L. Sib ...
detritus and depth (and therefore, distance offshore), and consequently, between depth and quality of diet. Thus, juveniles obta ...
are slow-growing. For example, they may breed for the first time at an age of less than one year (compared to three or four year ...
As we have outlined, the biology of these fishes is such that under 4hese conditions of rapid turnover, simple ecological commun ...
a newly-created river floodplain pool or marginal lagoon (Welcomme 1970, 1979a) would be the ecological equivalent of this man-m ...
from which it is probably invalid to extrapolate to large culture ponds Editors). The so-called "paradoxical stunting" reported ...
Discussion LOVSHIN: I found the paper very interesting and stimulating as a culturist. I have thought along the same lines for q ...
tend to trigger spawning. The food obviously has a role to play both in terms of quantity and quality. To my knowledge there has ...
Tilapias in Fish Communities Formerly Overseas Research Service (Present address: c/o Fish Section. British Museum (Natural Hist ...
include data on growth and production of tilapias in natural waters. From the title one might expect discussion of the role of t ...
shrink, and also in the dry season when the fish may be trapped in pools and riverbeds where there is very little aquatic vegeta ...
Table 1. Tilopio species for which ecological information is available from natural and semi-natural waters. These species may b ...
niloticus predominates, and in the southern deltas of the inflowing rivers where T. zillii lives over varied types of bottom (Bl ...
6' IJANSl POND 1. I " -I.' " 0 (^0) C 35 - 5 30- o 2s-e 20 - LAKE OEORBE L I5 - lo - 5 - 0 """" Total length (cm) 20 - Figure 1. ...
10olLIIIIIIIIilIIIIIIIIII 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 38 34 36 38 40 42 Maturation size (cm) Figure 2. The relati ...
During the intensive International Biological Programme studies on the ecology and production of S. niloticus in the equatorial ...
blue-green algae in the gut, whereas fish in the inshore regions had ingested detritus; since this species is more abundant insh ...
and eastern parts in 1960, and was abundant by 1964; it later became the dominant species in the former S. variabilis areas. Mea ...
chromis off more steeply shelving 'non-gradient' beaches. The small tilapias could withstand temperatures up to 38"C, lethal to ...
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