Relevant bibliographies by topics / Fishes – Malawi

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Academic literature on the topic 'Fishes – Malawi'

Author: Grafiati
Published: 4 June 2021
Last updated: 9 February 2022

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Journal articles on the topic "Fishes – Malawi"

1

Marsh, Alan C., and Anthony J. Ribbink. "Feeding schools among Lake Malawi cichlid fishes." Environmental Biology of Fishes 15, no. 1 (January 1986): 75–79. http://dx.doi.org/10.1007/bf00005391.

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Weyl, Olaf L. F., Anthony J. Ribbink, and Denis Tweddle. "Lake Malawi: fishes, fisheries, biodiversity, health and habitat." Aquatic Ecosystem Health & Management 13, no. 3 (August 31, 2010): 241–54. http://dx.doi.org/10.1080/14634988.2010.504695.

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Duponchelle, F., A. J. Ribbink, A. Msukwa, J. Mafuka, D. Mandere, and H. Bootsma. "Food partitioning within the species-rich benthic fish community of Lake Malawi, East Africa." Canadian Journal of Fisheries and Aquatic Sciences 62, no. 7 (July 1, 2005): 1651–64. http://dx.doi.org/10.1139/f05-075.

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Temporal diet patterns were studied for nine species of haplochromine cichlids in Lake Malawi, East Africa, using a combination of stable isotope and stomach content analyses. The results illustrate the complementarity of the two approaches in elucidating dietary differences. Evidence was found that benthic algal production contributed to the energy requirements of offshore fishes that occupy depths between 10 and 30 m. The importance of the lake fly Chaoborus edulis as a food source for demersal fishes was confirmed, supporting the recent hypothesis that deep demersal fish production is principally sustained through the pelagic food chain rather than from benthic detrital sources. Isotopic differences were observed among species with apparently similar diets, feeding behavior, and depth preferences, suggesting that important resource partitioning exists among Lake Malawi benthic haplochromine cichlids.
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Klein, Dagmar, Hideki Ono, Colm O'hUigin, Vladimir Vincek, Tijs Goldschmidt, and Jan Klein. "Extensive MHC variability in cichlid fishes of Lake Malawi." Nature 364, no. 6435 (July 1993): 330–34. http://dx.doi.org/10.1038/364330a0.

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McKaye, Kenneth R., Digby Lewis, Peter Reinthal, and Jasper Trendall. "A Guide to the Fishes of Lake Malawi National Park." Copeia 1988, no. 2 (May 18, 1988): 516. http://dx.doi.org/10.2307/1445908.

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Joo, Deokjin, Ye-seul Kwan, Jongwoo Song, Catarina Pinho, Jody Hey, and Yong-Jin Won. "Identification of Cichlid Fishes from Lake Malawi Using Computer Vision." PLoS ONE 8, no. 10 (October 25, 2013): e77686. http://dx.doi.org/10.1371/journal.pone.0077686.

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Smith, Adam R., Moira J. van Staaden, and Karen L. Carleton. "An Evaluation of the Role of Sensory Drive in the Evolution of Lake Malawi Cichlid Fishes." International Journal of Evolutionary Biology 2012 (June 21, 2012): 1–12. http://dx.doi.org/10.1155/2012/647420.

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Although the cichlids of Lake Malawi are an important model system for the study of sensory evolution and sexual selection, the evolutionary processes linking these two phenomena remain unclear. Prior works have proposed that evolutionary divergence is driven by sensory drive, particularly as it applies to the visual system. While evidence suggests that sensory drive has played a role in the speciation of Lake Victoria cichlids, the findings from several lines of research on cichlids of Lake Malawi are not consistent with the primary tenets of this hypothesis. More specifically, three observations make the sensory drive model implausible in Malawi: (i) a lack of environmental constraint due to a broad and intense ambient light spectrum in species rich littoral habitats, (ii) pronounced variation in receiver sensory characteristics, and (iii) pronounced variability in male courtship signal characteristics. In the following work, we synthesize the results from recent studies to draw attention to the importance of sensory variation in cichlid evolution and speciation, and we suggest possible avenues of future research.
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Pauers, Michael J., Joshua M. Kapfer, Christopher E. Fendos, and Craig S. Berg. "Aggressive biases towards similarly coloured males in Lake Malawi cichlid fishes." Biology Letters 4, no. 2 (January 29, 2008): 156–59. http://dx.doi.org/10.1098/rsbl.2007.0581.

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In haplochromine cichlids, female mate choice based on male nuptial coloration has played an important role in speciation. Recent studies suggest that male coloration strongly influences the distribution of these fishes based on male–male aggression; males direct more aggression towards similarly coloured opponents while tolerating differently coloured individuals. We explored the role of male nuptial colour in aggression among the mbuna of Lake Malawi, examining aggression by male Metriaclima mbenjii , the red top cobalt zebra, towards conspecific opponents, similarly coloured heterospecific opponents and differently coloured heterospecifics. In trials in which focal males were offered a single opponent, while the total number of aggressive behaviours did not vary among opponent species, the types of behaviours did; focal males directed more lateral displays towards conspecifics than towards the other opponent species. When focal males were offered two opponents simultaneously, M. mbenjii directed more aggressive behaviours and more lateral displays towards similarly coloured opponents, regardless of species. Furthermore, when offered a conspecific and a similarly coloured opponent simultaneously, there were no differences in behaviour towards either opponent. Thus, nuptial coloration is used by males to identify competitors, and it suggests that male–male aggression may have also been an important diversifying force in speciation in rock-dwelling Lake Malawi cichlids.
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Clark, Frances E., Matthew A. Conte, and Thomas D. Kocher. "Genomic Characterization of a B Chromosome in Lake Malawi Cichlid Fishes." Genes 9, no. 12 (December 5, 2018): 610. http://dx.doi.org/10.3390/genes9120610.

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B chromosomes (Bs) were discovered a century ago, and since then, most studies have focused on describing their distribution and abundance using traditional cytogenetics. Only recently have attempts been made to understand their structure and evolution at the level of DNA sequence. Many questions regarding the origin, structure, function, and evolution of B chromosomes remain unanswered. Here, we identify B chromosome sequences from several species of cichlid fish from Lake Malawi by examining the ratios of DNA sequence coverage in individuals with or without B chromosomes. We examined the efficiency of this method, and compared results using both Illumina and PacBio sequence data. The B chromosome sequences detected in 13 individuals from 7 species were compared to assess the rates of sequence replacement. B-specific sequence common to at least 12 of the 13 datasets were identified as the “Core” B chromosome. The location of B sequence homologs throughout the genome provides further support for theories of B chromosome evolution. Finally, we identified genes and gene fragments located on the B chromosome, some of which may regulate the segregation and maintenance of the B chromosome.
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Genner, M. J., A. Botha, and G. F. Turner. "Translocations of rocky habitat cichlid fishes to Nkhata Bay, Lake Malawi." Journal of Fish Biology 69, no. 2 (August 2006): 622–28. http://dx.doi.org/10.1111/j.1095-8649.2006.01120.x.

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Dissertations / Theses on the topic "Fishes – Malawi"

1

Genner, Martin Jones. "Coexistence of Lake Malawi cichlid fishes." Thesis, University of Southampton, 1999. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.302317.

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Smith, Peter F. "Evolution of Lake Malawi Cichlid Fishes (Perciformes: Teleostei)." Fogler Library, University of Maine, 2002. http://www.library.umaine.edu/theses/pdf/SmithPF2002.pdf.

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3

Kaunda, Emmanuel Kamlipe Watson Hawkins. "Feeding ecology of Bathyclarias nyasensis (Siluroidei: Claridae) from Lake Malawi." Thesis, Rhodes University, 2001. http://hdl.handle.net/10962/d1005126.

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In Malawi, fish contribute about 60-80% to the country's animal protein supply. The greater proportion (> 50%) comes from Lake Malawi. Bathyclarias nyasensis and other clariid catfish contribute up to > 20% of the total catches. Catches of Bathyclarias nyasensis in the inshore area of the south-east arm of Lake Malawi are declining and a management plan for the fishery is essentially lacking. There is paucity of biological data that precludes the use of any option to manage the species. The principal aim of the thesis was to define the ecological role B. nyasensis, the most abundant and common of the Bathyclarias species. By examining life history characteristics within a food web context, it was hypothesized that the study would provide an insight into the interrelationships between species, and, hence form the basis for the development of a rational exploitation strategy for the species. The study was undertaken in the south-east arm of Lake Malawi (9° 30'S, 14° 30'S). The principal objectives of the study were to investigate the feeding ecology of B. nyasensis by examining morphological characters and structures associated with feeding, diet of B. nyasensis, food assimilated in the species using carbon (∂¹³C) isotope analysis, daily food consumption rate for B. nyasensis; and to relate the feeding ecology to life history traits such as age, growth, and some aspects of the reproductive biology of B. nyasensis. The suitability of sectioned pectoral spines and sagittal otoliths to age B. nyasensis was assessed. Due to reabsorption of growth zones with increasing spine lumen diameter with fish size, and the relatively low number of spines that could be aged reliably, only otoliths were used. The maximum age for B. nyasensis was estimated at 14 vears. Growth was best was described by the four parameter Schnute mc: lt ={42+(81¹·⁸ - 42¹·⁸)x1-e⁻°·°⁵⁽t⁻¹⁾}¹/¹·⁸ over 1-e⁻⁽⁻°·°⁵⁾⁽¹¹⁾ for female, lt={41+(98¹·² - 41¹·²)x 1-e⁻°·°²⁽t⁻¹⁾}¹/¹·² over 1-e⁻⁽⁻°·°²⁾⁽¹³⁾ and for male fish. Age-at-50% maturity for females and males were estimated at 7 years and 4 years, respectively. Typically, fish grew rapidly in the first year, but slower during subsequent years. Smaller fish were found inshore while larger fish were found in offshore regions. It was hypothesised that the rapid growth in the first year and slower growth later is a consequence of change in diet from high quality and abundant food source to a more dilute food and that this may be associated with a shift in habitat. Morphological characters associated with feeding were used to predict the food and feeding behaviour of B. nyasensis. The size of premaxillary, vomerine, pharyngeal dental and palatine teeth and premaxillary and vomerine tooth plates suggested the capability of B. nyasensis to handle both large and small prey, with a propensity towards smaller prey in composition to C. gariepinus. The molariform teeth on the vomerine tooth plate suggested that molluscs form part of the diet. The relative gut length (1.27±0.24) suggested omnivory, with an ability to switch between planktivory and piscivory. Buccal cavity volume and filtering area changed with fish size at 500-600 mm TL upon which it was hypothesised that the fish diet changed to planktivory at this size. Detailed diet analysis provided information upon which the above hypotheses could be accepted. Percent Index of Relative Importance (%IRI) and a multi-way contingency table analysis based on log-linear models were used to analyse diet data. Results showed that B. nyasensis is omnivorous, but with a distinct ontogenetic dietary shift from piscivory to zooplanktivory at 500 - 600 mm TL. The increased buccal cavity volume at the same fish size therefore, suggests that B. nyasensis is well adapted to filter the dilute zooplankton resource. Increased foraging costs of feeding on zooplankton explained the slower growth of larger fish. The dietary shift was finally corroborated by results of the ∂¹³C isotope analysis. A polynomial equation described the change in carbon ratios with fish size: ∂¹³C = - 33.188 + 0.4997L - 0.0045 (total length)² (r² = 0.598, n = 12, p=0.022). The ontogenetic shift in diet was synchronised with a habitat shift postulated in life history studies. In the inshore region, B. nyasensis were predominantly piscivorous (apex predators), and were zooplanktivorous in the offshore region, thereby forming part of the pelagic food web in the latter region. After examining "bottom-up" and trophic cascade theories, it was postulated that perturbations of the B. nyasensis stock would be discernible both at the top and lower trophic levels. As a piscivore and therefore apex predator, effects of overfishing B. nyasensis in the inshore region could cascade to unpredictable ecological changes in inshore areas and, due to the ontogenetic habitat shift, in the offshore regions. Examples of trophic cascade phenomena are provided. On the basis of the feeding study, it was possible to reconstruct the pelagic food web of Lake Malawi. Apart from the lakefly Chaoborus edulis, B. nyasensis is the other predator that preys heavily on zooplankton in the pelagic zone. Perturbations of the B. nyasensis stock could affect size composition of zooplankton which in tum, could affect production of C. edulis, a resource for the top predators in the food web. The findings of the present study contributed to the ongoing debate of introducing a zooplanktivore into the pelagic zone of Lake Malawi. Proponents for the introductions have argued that zooplankton predation by fish is inferior to that of C. edulis. Introduction of a clupeid zooplankton was proposed as a strategy to boost fish production in the lake. The zooplanktivore would either out-compete or prey on C. edulis to extinction. Opponents to this view argued that zooplankton biomass in the pelagic region was too low to support introductions and that the fish biomass in the pelagic region may have been underestimated. Results from the present study suggest that planktivorous fish (including B. nyasensis) might not be inferior to C. edulis in utilising the zooplankton resource; B. nyasensis is well adapted to utilise the dilute zooplankton resource, and by omitting B. nyasensis from previous studies, overall zooplankton predation by fish may have been underestimated by between 7 - 33%. On the basis of the theoretical migratory life history cycle of B. nyasensis, it is recommended that the current interest in increasing fishing effort in offshore areas should proceed with caution. Ecological changes that may have occurred in the inshore areas due to overfishing have probably not been noticed: as the offshore zone has never been fished. The latter zone may have acted as a stock refuge area. Higher fishing intensity in the offshore areas could lead to serious ecological imbalances and instability. The study has shown that life history characteristics studied in the context of the food web, and in the absence of other fisheries information and/or data, strongly advocates the precautionary principle to managing changes in exploitation patterns.
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Robinson, Rosanna Lesley. "The dynamics of space use in some Lake Malawi fishes." Thesis, Rhodes University, 1996. http://hdl.handle.net/10962/d1005108.

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Behaviour and space utilisation of rock-dwelling cichlids were observed at Thumbi East Island, Lake Malawi. 1. Males of five species of the mbuna complex held long-term territories. Pseudotropheus elongatus "aggressive" vigorously defended a feeding area and sometimes a spawning site interspecifically, but did not feed in the peripheral part of their territory. Spawning sites of Pseudotropheus zebra, Pseudotropheus tropheops "orange chest", Labeotropheus fuelleborni, and Petrotilapia nigra were interspecifically-defended, while larger mating territories were defended against conspecific neighbours. Feeding areas were shared with many fish and often extended beyond the defended area. There was considerable variation in behaviour and space use within and between species and between times of day. 2. Non-territorial P. zebra used larger ranges than territorial conspecifics, and fed more on plankton, but individuals had preferred benthic feeding areas, often in conspecific territories. These 'floaters' were often aggressive. Both size and relative brightness independently predicted the outcome of aggressive interactions between floaters, and a site-specific dominance hierarchy was suggested, with some individuals appearing to be semi-territorial. 3. Males and females of 21 and 13 species respectively were found to establish temporary breeding territories. Overall breeding seasonality was bimodal, but reproductive timing and territory characteristics differed among species. Temporary territories had a considerable impact on the behaviour and habitat use of all resident mbuna species, even causing abandonment of territories. 4. Non-breeding Protomelas taeniolatus had limited home ranges, and showed little aggression. During the highly-synchronised reproductive season, males defended spawning sites and females fry-guarding territories. Most chases were directed towards the commonest fish, but predators were chased further and faster. Female behaviour changed over the guarding period. Females generally continued territorial defence after the brood had disappeared. Most broods contained fry of different sizes and species. Significant benefits were found for guarding females with clustered territories, but females did not appear to choose sites adjacent to conspecific parental females. 5. Territoriality in fish is taxonomically widespread and may serve several functions according to species, sex and developmental stage. It also varies according to genotype- and phenotype-limited strategies and short term costs and benefits. Territories may be simultaneously multifunctional.
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Taylor, Martin Ian. "Sexual selection, speciation and taxonomy of Lake Malawi cichlid fishes." Thesis, University of Aberdeen, 1996. http://digitool.abdn.ac.uk/R?func=search-advanced-go&find_code1=WSN&request1=AAIU094275.

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The cichlid fishes inhabiting Lakes Malawi, Tanganyika and Victoria have undergone explosive speciation, and are now unparalleled as a system in which to study large scale rapid speciation in vertebrates. Current theories on the origin and diversification of these cichlid faunas were critically reviewed. Sexual selection by female choice was concluded to be the most likely mechanism behind the phenomenal explosion in species numbers. Sexual selection by female choice was investigated in Copadichromis thinos, a bower-building cichlid. A significant relationship was found between the asymmetry of an extended phenotypic trait (sand bowers), and male parasite load (not previously demonstrated in any taxa). Males which spawned were found to have a significantly lower total parasite load than those which did not spawn, never before demonstrated in a lekking fish. Further, males which spawned were found to have significantly higher eviscerated gonadosomatic indices than unsuccessful males. Significant correlations were also found between hepatosomatic index and some measures of reproductive success. This may indicate females are choosing to mate with males in better condition. A morphological study of the sand-dwelling species of the genus Aulonocara showed that differently coloured males represented distinct morphospecies, rather than colour 'morphs' of a single or few species. Twelve new species were subsequently described, along with preliminary descriptions of three further species. Preliminary laboratory studies of three sympatric species of the Pseudotropheus zebra species complex from Nkhata Bay demonstrated that females were able to distinguish between conspecific and heterospecific males using visual cues only. Further, no significant differences were found in female choice between males using visual cues only and visual and olfactory cues.
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Kanyerere, Geoffrey Zantute. "Age, growth and yield-per-recruit analysis of ndunduma Diplotaxodon limnothrissa (Teleostei: Cichlidae), in the southeastern arm of Lake Malawi." Thesis, Rhodes University, 2004. http://hdl.handle.net/10962/d1005057.

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Diplotaxodon limnothrissa Turner (1995) is a widely distributed species occurring throughout Lake Malawi, extending from the surface to a depth of at least 220m. It is probably the most abundant cichlid in the lake with biomass estimates of around 87 000 tonnes in the pelagic zone alone. The species is exploited commercially in the southern part of the lake but since its inception the fishery has never been assessed. As such this study investigates some aspects of age and growth of the species besides applying a yield-per-recruit analysis to assess the status of the fishery. Analysis of sectioned sagittal otoliths revealed that D. limnothrissa is fast growing and relatively long-lived species, attaining ages in excess of 10 years. Growth in length was rapid in immature fish, with fish attaining almost half of their maximum size within their first year. Le ngth-at-age was described by the von Bertalanffy growth model with combined-sex growth described as Lt = 211.21(1-exp(- 0.24(t+1.36))) mm TL. Total, natural and fishing mortalities were estimated at 0.76 yr⁻¹, 0.31 yr⁻¹ and 0.45 yr⁻¹ respectively. Per-recruit analysis indicated that the D. limnothrissa stock in the southeast arm of the lake is fully exploited as indicated by the current spawner biomass-per-recruit ratios of 31-55% (SB/R)F=0. Modelling indicated that the current age-at-capture (2.67 years) is lower than the age at which yield is optimised (> 5 years) based on the F₀·₁ harvesting strategy. It is, therefore, recommended that the age-at-capture should be increased from 2.67 to 5 years to optimise yield.
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Munthali, Simon Muchina. "Ecological interaction between the introduced and native rock-dwelling cichlid fishes of Lake Malawi National Park, Malawi." Thesis, Rhodes University, 1997. http://hdl.handle.net/10962/d1005110.

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More than twenty years ago, over twenty species of the rock-dwelling cichlid species (Mbuna) were translocated from the northern Lake Malawi, where they are endemic, to Thumbi West Island, Lake Malawi National Park, in the southern part of Lake Malawi. Among these species, Cynotilapia afra, Pseudotropheus callainos and Pseudotropheus tropheops 'red cheek' are strongly territorial, and have increased substantially in number and are widely distributed, particularly in the three to seven metre depth band of the rocky habitats at the Island of Thumbi West. It is feared that the increase in population density of translocated species (hereafter referred to as introduced species) may be at the expense of ecologically equivalent native species which could be eliminated. In this thesis the following key hypotheses have been tested: (i) that the introduced species having originated from a region of Lake Malawi which is generally poor in nutrients and introduced in an area which is richer in nutrients, would cope better than the native species during periods of nutrient scarcity which occur frequently, often seasonally in oligotrophic lakes, such as Lake Malawi; (ii) that the introduced species are fitter than their ecologically equivalent native species in the acquisition of territorial space in which they breed, feed and seek shelter, and (iii) that introduced and native species coexist by utilizing different microhabitats. Results show that: 1. the introduced species, P. callainos and P. tropheops 'red cheek' may have responded positively to enhanced nutrient availability, as they were found to have better condition factors and fecundity indices at Thumbi West Island than at sites of their origin, in the northern lake Malawi. Cynotilapia afra, P. callainos and P. tropheops 'red cheek' also maximise their life-span fecundity by starting to reproduce at relatively smaller size than the native species with which they overlap in microhabitat requirements. Similarly, their breeding peaks precede the breeding peaks of the native species with which they overlap in microhabitat requirements. Consequently, due to priority residence effects, the offspring of introduced species may have a competitive edge in the use of essential resources, e.g., refuge over the offspring of the native species whose peak-recruitment occurs later in the year. 2. There is an overlap between the introduced and native species in their microhabitat requirements. Consequently, interference competition between them for territorial sites occurs. The choice of optimal territory sites is constrained by the fact that females preferentially mate with males that defend significantly smaller holes, or crevices among the rocks, probably as a means of minimizing egg predation during spawning. 3. The population of territorial males of introduced species seems to grow exponentially, depending on the availability of suitable microhabitats, and an equilibrium between them and males of the native species may be reached. Competition for optimal territory sites seems to intensify, once the carrying capacity in a particular area has been reached, and it is at this stage that some territorial males of the introduced and native species with similar microhabitat requirements, e.g., C. afra and P. zebra, or P. tropheops 'red cheek' and its sibling native species, P. tropheops 'orange chest' displace each other. However, it seems unlikely that any of the native species which were compared with the introduced species would be driven to extinction because: (a) there is a considerable interspecific territory turn-over between the introduced and native species that overlap in microhabitat requirements. (b) Even in situations where some of the native species occur in microhabitats that are not of their preference, they occupy patches of suitable sites and are capable of breeding. (c) It has been suggested that since introduced and native species breed throughout the year and are polygamous and have intraspecifically shared paternity, they are capable of fertilizing many gravid females of their own species. Therefore, the population of native species may not be detrimentally limited by the presence of introduced species. (d) The introduced and native Mbuna species that prefer small rocks coexist in the same microhabitats, partly by feeding at different sites with different intensity and they also feed at different heights in the water column. 4. The following studies have been recommended before any management intervention, such as culling is adopted: (i). interaction between the introduced and native species in the shallow and deep rocky habitats; (ii) space utilization and survivorship of juveniles of the introduced and native species; (iii) laboratory studies to confirm the role of different nutrient regimes on the fecundity of Mbuna; (iv) the possibility of hybridization between the introduced and native species; (v) monitoring of population growth and distribution of the introduced species around Thumbi West Island should continue in order to detect their long-term effects on the native species.
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Pereyra, Ricardo T. "Population structure, genetic diversity and dispersal of cichlid fishes from Lake Malawi." Thesis, University of East Anglia, 2003. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.399776.

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Kachilonda, Dick Daffu Kachanga. "An investigation of local community contributions to the Malawi College of Fisheries curriculum: a case study focussing on the Chambo fishery." Thesis, Rhodes University, 2005. http://hdl.handle.net/10962/d1004537.

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The aim of the study was to investigate local community contributions to the existing Malawi College of Fisheries curriculum with a focus on Chambo fishery. Chambo fish (Oreochromis species) is the most favoured fish in Lake Malawi. Chambo catches have declined over the years. Responding to the declining catches, the Fisheries Department is engaged in a number of management options to address the issues. Most of these management options are governed by scientific recommendations and do not consider the socio-economic situation of the people who are dependent on fishery. This approach to fishery has influenced the Malawi College of Fisheries curriculum. The existing curriculum is product-centred, developed by a consultant. During the development of the curriculum, there was little consultation with the lecturers and no consultation with the local communities who are using the resource. The fishing communities have been fishing for a long time and have acquired knowledge, skills and experience worth investigating for its potential role in improving the existing curriculum. Through the use of interviews, focus group discussions and workshops with local communities local knowledge was identified for inclusion into the curriculum. A review of the existing curriculum revealed that it has primarily technical focus, grounded in the protection, control and management of the fish stocks, while the local knowledge has a practical focus based on existing practices and requiring an understanding of the sources of the issues. There is also more emphasis on a historical perspective and the context in which fishing practices take place at the moment. It was evident from the study that local communities have much of knowledge, skills and experience gained over the years of fishing , and if properly utilised, it can improve the MCF curriculum. I therefore recommend in this study that the curriculum be reviewed in order to integrate and draw on the local knowledge through a deliberative and participatory process between the local communities and the government so that it addresses the needs of the local communities and improves the training of the extension workers.
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Barson, Nicola Jane. "Sexual selection and the genetics of reproductive isolation in Lake Malawi cichlid fishes." Thesis, University of Hull, 2004. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.418774.

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Books on the topic "Fishes – Malawi"

1

Warren, Burgess, ed. African cichlids of Lakes Malawi and Tanganyika. Neptune City, NJ: T.F.H. Publications, 1986.

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E, Burgess Warren, ed. African cichlids of Lakes Malawi and Tanganyika. Maidenhead: T.F.H. Publications, 1989.

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E, Burgess Warren, ed. African Cichlids of Lakes Malawi and Tanganyika. Neptune, NJ: T.F.H.Pubns., 1993.

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The proper care of Malawi cichlids. Neptune City, NJ: T.F.H. Publications, 1993.

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Lewis, Digby S. C. A guide to the fishes of Lake Malaŵi National Park. Gland, Switzerland: WWF, 1986.

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Konings, Ad. Konings's book of cichlids and all the other fishes of Lake Malawi. Neptune City, NJ: T.F.H. Publications, 1990.

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Technical Consultation between Malawi, Mozambique and Tanzania on the Development and Management of the Fisheries of Lake Malawi/Niassa/Nyasa (2003 June 17-19 Mangochi, Malawi). Report of the Technical Consultation between Malawi, Mozambique and Tanzania on the Development and Management of the Fisheries of Lake Malawi/Niassa/Nyasa: Mangochi, Republic of Malawi, 17-19 June 2003. Rome: Food and Agriculture Organization of the United Nations, 2005.

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Chikafumbwa, Fredson J. K. Integrated aquaculture-agriculture adoption and impact in rainfed farming systems in Sakata, Malawi. [Lilongwe?: SADC, 1996.

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Exchange, Visit Seminar for Directors (2000 Mangochi Malawi). Report of the Exchange Visit Seminar for Directors: Club Makokola, Mangochi, Malawi, 2nd to 4th July 2000. [Harare]: IUCN-Regional Office for Southern Africa, 2000.

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Hara, Mafaniso. Problems of introducing community participation in fisheries management: Lessons from the Lake Malombe and Upper Shire River (Malawi) participatory fisheries management programme. Bellville, South Africa: Centre for Southern African Studies, School of Government, University of the Western Cape, 1996.

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Book chapters on the topic "Fishes – Malawi"

1

Turner, G. F., R. L. Robinson, B. P. Ngatunga, P. W. Shaw, and G. R. Carvalho. "Pelagic Cichlid Fishes of Lake Malawi/Nyasa: Biology, Management and Conservation." In Management and Ecology of Lake and Reservoir Fisheries, 353–66. Oxford, UK: Blackwell Publishing Ltd, 2007. http://dx.doi.org/10.1002/9780470995679.ch29.

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McElroy, Douglas M., and Irv Kornfield. "Sexual selection, reproductive behavior, and speciation in the mbuna species flock of Lake Malawi (Pisces: Cichlidae)." In Alternative life-history styles of fishes, 273–84. Dordrecht: Springer Netherlands, 1990. http://dx.doi.org/10.1007/978-94-009-2065-1_17.

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Balon, Eugene K. "Early ontogeny of Labeotropheus Ahl, 1927 (Mbuna, Cichlidae, Lake Malawi), with a discussion on advanced protective styles in fish reproduction and development." In Early life histories of fishes: New developmental, ecological and evolutionary perspectives, 207–36. Dordrecht: Springer Netherlands, 1985. http://dx.doi.org/10.1007/978-94-010-9258-6_11.

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KORNFIELD, IRV, and ALEX PARKER. "Molecular Systematics of a Rapidly Evolving Species Flock: The mbuna of Lake Malawi and the Search for Phylogenetic Signal." In Molecular Systematics of Fishes, 25—cp1. Elsevier, 1997. http://dx.doi.org/10.1016/b978-012417540-2/50004-x.

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Turner, G. F. "The nature of species in ancient lakes: Perspectives from the fishes of Lake Malawi." In Advances in Ecological Research, 39–60. Elsevier, 2000. http://dx.doi.org/10.1016/s0065-2504(00)31006-6.

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"Freshwater, Fish and the Future: Proceedings of the Global Cross-Sectoral Conference." In Freshwater, Fish and the Future: Proceedings of the Global Cross-Sectoral Conference, edited by Friday Njaya. American Fisheries Society, 2016. http://dx.doi.org/10.47886/9789251092637.ch29.

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<em>Abstract</em> .—This paper presents key challenges and lessons experienced during the ecosystem approach to fisheries and aquaculture (EAFA) planning process for the southern Lake Malawi, Mangochi district. This is in response to a near collapse or serious decline of chambo (<em>Oreochromis </em> sp.) harvests in the fishing area due to various ecological and socioeconomic problems such as overfishing, weak enforcement, habitat degradation, conflicting management policies, and deforestation. The estimated annual chambo harvest recorded between 4,000 and 5,000 metric tons in the early 1980s from southern Lake Malawi has now declined by almost 50%. The reduced catch represents a loss of about 2 × 10<sup>9</sup> Malawi kwacha, which is approximately US$5.5 million using 2012 chambo beach prices. The decline in both catch and revenue, therefore, justifies the need to identify policy and governance reforms for recovery and sustainable management of the fishery. Stakeholders recommended the development and implementation of an EAFA plan to guide rebuilding the chambo populations. Aquaculture development within the fishing area was also taken into account for increased supply of farmed chambo for food, nutritional security, and improved livelihoods of the local communities. Key challenges and lessons from the EAFA development process include setting objectives, defining boundaries, extent of consultations, commitment of stakeholders, stakeholder participation, overdependence on fishing, open-access nature of the fishery, conflicts, and limited availability of data. The ecosystem approach to fisheries and aquaculture is a suitable management approach as it considers varied socioeconomic and ecological objectives of a user community.
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"Freshwater, Fish and the Future: Proceedings of the Global Cross-Sectoral Conference." In Freshwater, Fish and the Future: Proceedings of the Global Cross-Sectoral Conference, edited by Friday Njaya. American Fisheries Society, 2016. http://dx.doi.org/10.47886/9789251092637.ch29.

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<em>Abstract</em> .—This paper presents key challenges and lessons experienced during the ecosystem approach to fisheries and aquaculture (EAFA) planning process for the southern Lake Malawi, Mangochi district. This is in response to a near collapse or serious decline of chambo (<em>Oreochromis </em> sp.) harvests in the fishing area due to various ecological and socioeconomic problems such as overfishing, weak enforcement, habitat degradation, conflicting management policies, and deforestation. The estimated annual chambo harvest recorded between 4,000 and 5,000 metric tons in the early 1980s from southern Lake Malawi has now declined by almost 50%. The reduced catch represents a loss of about 2 × 10<sup>9</sup> Malawi kwacha, which is approximately US$5.5 million using 2012 chambo beach prices. The decline in both catch and revenue, therefore, justifies the need to identify policy and governance reforms for recovery and sustainable management of the fishery. Stakeholders recommended the development and implementation of an EAFA plan to guide rebuilding the chambo populations. Aquaculture development within the fishing area was also taken into account for increased supply of farmed chambo for food, nutritional security, and improved livelihoods of the local communities. Key challenges and lessons from the EAFA development process include setting objectives, defining boundaries, extent of consultations, commitment of stakeholders, stakeholder participation, overdependence on fishing, open-access nature of the fishery, conflicts, and limited availability of data. The ecosystem approach to fisheries and aquaculture is a suitable management approach as it considers varied socioeconomic and ecological objectives of a user community.
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Weyl, O. L. F., A. J. Booth, K. Mwakiyongo, and M. M. Banda. "Per-Recruit Simulation as a Rapid Assessment Tool for a Multispecies Small-Scale Fishery in Lake Malombe, Malawi, Africa." In Fisheries Assessment and Management in Data-Limited Situations, 235–54. Alaska Sea Grant, University of Alaska Fairbanks, 2005. http://dx.doi.org/10.4027/famdis.2005.14.

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Wyatt, Jonathan P., Robert G. Taylor, Kerstin de Wit, Emily J. Hotton, Robin J. Illingworth, and Colin E. Robertson. "Infectious diseases." In Oxford Handbook of Emergency Medicine, 227–62. Oxford University Press, 2020. http://dx.doi.org/10.1093/med/9780198784197.003.0005.

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This chapter in the Oxford Handbook of Emergency Medicine discusses infectious diseases in the emergency department (ED). It starts by examining the general subjects of incubation periods, notifiable infectious diseases, and childhood diseases. It goes on to explore specific diseases, including meningitis, acute encephalitis, herpes simplex virus, herpes varicella-zoster, Zika virus, gastroenteritis/food poisoning, fish poisoning, infestations, tuberculosis, anthrax, streptococcal infections, staphylococcal infections, tetanus, gas gangrene, botulism, sexually transmitted infections, hepatitis, leptospirosis (Weil’s disease), and human immunodeficiency virus (HIV). It discusses imported infectious diseases, such as malaria, typhoid and paratyphoid (enteric fever), dengue, poliomyelitis, rabies, viral haemorrhagic fevers, and severe acute respiratory syndrome, before looking at influenza pandemics, avian flu, and swine flu.
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"Marine Artificial Reef Research and Development: Integrating Fisheries Management Objectives." In Marine Artificial Reef Research and Development: Integrating Fisheries Management Objectives, edited by Razak Zakariya and Lenny Sharinee Sakai. American Fisheries Society, 2018. http://dx.doi.org/10.47886/9781934874516.ch17.

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<em>Abstract</em>.—In recent years, as reported by the Malaysian Department of Fisheries, the decline in demersal fish resources is due to excessive exploitation. This indicates that management and protection of these resources and their habitat are required. <em>Teranas </em>is identified as important critical marine habitat and locally in Malay is defined as a hard rock substrate on the seabed. Teranas can appear in all shapes and sizes, depths, and locations. The combination of these various bottom features often make a teranas attractive to fish. The objective of this study is to detect a teranas so that it can be located and managed through mapping. Sonar in the form of a multibeam echosounder was used to map a teranas with a combination of bathymetry and water column features to identify the signature for teranas. The result produced a signature library to readily identify a teranas with the multibeam echosounder. An important factor in determining the signature for the teranas was the seabed structure and its associated marine life. Bathymetry identified the seabed structure, and the water column characteristics helped verify the presence of marine life. Fishing and visual surveys with scuba diving were also conducted to verify the effectiveness of the multibeam echosounder to identify the teranas. These study results can be used as an aid for planning and managing a teranas to help sustain the associated fisheries resources. Moreover, since a teranas is similar in structure and position to an artificial reef, the multibeam echosounder, when coupled with visual diver-based surveys and fishing effort, could be used to identify the extent and marine fauna associated with an artificial reef. This research will help in providing strategic location selection for artificial reef placement.
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Conference papers on the topic "Fishes – Malawi"

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J. Witten, Alan, and I. J. Won. "Stone Fish, Malaria And Cholera: High Risk Geophysics In A Pirates' Lair." In 15th EEGS Symposium on the Application of Geophysics to Engineering and Environmental Problems. European Association of Geoscientists & Engineers, 2002. http://dx.doi.org/10.3997/2214-4609-pdb.191.11eg3.

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Witten, Alan J., and I. J. Won. "Stone Fish, Malaria and Cholera: High Risk Geophysics in a Pirates' Lair." In Symposium on the Application of Geophysics to Engineering and Environmental Problems 2002. Environment and Engineering Geophysical Society, 2002. http://dx.doi.org/10.4133/1.2927081.

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Yunika, Grace, and Mahawan Karuniasa. "Should Jatiluhur Reservoir Apply the Zero Floating Fish Cage?" In Proceedings of the 13th International Interdisciplinary Studies Seminar, IISS 2019, 30-31 October 2019, Malang, Indonesia. EAI, 2020. http://dx.doi.org/10.4108/eai.23-10-2019.2293020.

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Amri, Indah Amalia, Riski Arya Pradikta, Sri Murwani, and Dahliatul Qosimah. "Virgin Coconut And Fish Oil (VCFO) for Treatment of Fungal Cat Infection In Malang." In 1st International Conference in One Health (ICOH 2017). Paris, France: Atlantis Press, 2018. http://dx.doi.org/10.2991/icoh-17.2018.58.

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Reports on the topic "Fishes – Malawi"

1

Lenz, Mark. RV POSEIDON Fahrtbericht / Cruise Report POS536/Leg 1. GEOMAR, October 2020. http://dx.doi.org/10.3289/geomar_rep_ns_56_2020.

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DIPLANOAGAP: Distribution of Plastics in the North Atlantic Garbage Patch Ponta Delgada (Portugal) – Malaga (Spain) 17.08. – 12.09.2019 The expedition POS 536 is part of a multi-disciplinary research initiative of GEOMAR investigating the origin, transport and fate of plastic debris from estuaries to the oceanic garbage patches. The main focus will be on the vertical transfer of plastic debris from the surface and near-surface waters to the deep sea and on the processes that mediate this transport. The obtained data will help to develop quantitative models that provide information about the level of plastic pollution in the different compartments of the open ocean (surface, water column, seafloor). Furthermore, the effects of plastic debris on marine organisms in the open ocean will be assessed. The cruise will provide data about the: (1) abundance of plastic debris with a minimum size of 100 μm as well as the composition of polymer types in the water column at different depths from the sea surface to the seafloor including the sediment, (2) abundance and composition of plastic debris in organic aggregates (“marine snow”), (3) in pelagic and benthic organisms (invertebrates and fish) and in fecal pellets, (4) abundance and the identity of biofoulers (bacteria, protozoans and metazoans) on the surface of plastic debris from different water depths, (5) identification of chemical compounds (“additives”) in the plastic debris and in water samples.
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