Morphometric variation among male populations of freshwater shrimp Macrobrachium vollenhovenii Herklots, 1851 from Côte d’Ivoire Rivers

Konan, Koffi Mexmin; Adépo-Gourène, Abouo Béatrice; Ouattara, Allassane; Nyingy, Wanja Dorothy; Gourène, Germain

doi:10.1016/j.fishres.2010.01.005

Cited by 39 publications

(44 citation statements)

References 40 publications

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“…For example, for comparisons of consumption patterns among prawn species, we focused solely on biomass as a measure of consumption because this is the most important factor from the predator’s perspective. Digestion is the most common limiting factor regulating consumption rates among predators, including crustaceans (Jeschke et al, 2002; Konan et al, 2010). We therefore hypothesized that over relatively long time spans (days), prawns would satiate based on the total biomass consumed, compared with the capacity of their gastrointestinal tracts, and that they would satiate more quickly when feeding on large versus small snails, making the biomass of snails a more tractable and consistent predictor of satiation than the number of snails consumed, in this specific case.…”

Section: Methodsmentioning

confidence: 99%

Regulation of laboratory populations of snails (Biomphalaria and Bulinus spp.) by river prawns, Macrobrachium spp. (Decapoda, Palaemonidae): Implications for control of schistosomiasis

2014

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Human schistosomiasis is a common parasitic disease endemic in many tropical and subtropical countries. One barrier to achieving long-term control of this disease has been re-infection of treated patients when they swim, bathe, or wade in surface fresh water infested with snails that harbor and release larval parasites. Because some snail species are obligate intermediate hosts of schistosome parasites, removing snails may reduce parasitic larvae in the water, reducing re-infection risk. Here, we evaluate the potential for snail control by predatory freshwater prawns, Macrobrachium rosenbergii and M. vollenhovenii, native to Asia and Africa, respectively. Both prawn species are high value, protein-rich human food commodities, suggesting their cultivation may be beneficial in resource-poor settings where few other disease control options exist. In a series of predation trials in laboratory aquaria, we found both species to be voracious predators of schistosome-susceptible snails, hatchlings, and eggs, even in the presence of alternative food, with sustained average consumption rates of 12% of their body weight per day. Prawns showed a weak preference for Bulinus truncatus over Biomphalaria glabrata snails. Consumption rates were highly predictable based on the ratio of prawn: snail body mass, suggesting satiation-limited predation. Even the smallest prawns tested (0.5–2g) caused snail recruitment failure, despite high snail fecundity. With the World Health Organization turning attention toward schistosomiasis elimination, native prawn cultivation may be a viable snail control strategy that offers a win-win for public health and economic development.

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Section: Methodsmentioning

confidence: 99%

Regulation of laboratory populations of snails (Biomphalaria and Bulinus spp.) by river prawns, Macrobrachium spp. (Decapoda, Palaemonidae): Implications for control of schistosomiasis

2014

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“…Results from the present study showed that intra-population variation in morphometric characters were found to be low for the five geographic populations tested. This was proved by low values of coefficient of variation (CV<20%) for all measured variables and justified that a phenotypically homogeneous group was there within each population (Ferrito et al, 2007;Konan et al, 2010). Recent reports indicated that low values of CV may justify high inheritability (Mamuris et al, 1998) and consequently limited influence of environmental variation on morphological variability (Soule and Cuzin-Roudy, 1982).…”

Section: Resultsmentioning

confidence: 82%

“…Discriminant function analysis (DFA) was conducted to test the effectiveness of the characters in predicting different group locations, which clarify the relative importance of such traits as discriminators between a priori for groups, as performed by Kong et al (2007) and Konan et al (2010). A forward stepwise function analysis was carried out to reduce the number of variables (Jain et al, 2000;Poulet et al, 2004; and to identify the combinations of variables which separate groups (Hair et al, 1996).…”

Section: Methodsmentioning

confidence: 99%

Morphological variations of the winged pearl oyster Pteria penguin (Roding, 1798) from South China Sea

et al. 2017

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The present study was undertaken to evaluate the morphological variations of Pteria penguin (Roding, 1798) in wild as well as cultured populations from South China Sea. A total of 307 samples were collected from five different geographic locations comprising three wild (Pop. 1, 2 and 4) and two cultured (Pop. 3 and 5) populations and 10 measured traits were analysed. Principal component analysis (PCA), discriminant analysis and cluster analysis were used to evaluate the morphological variations in the collected samples. Results showed a low intra-population variation within the five sampled populations. Multivariate analyses indicated that the five populations were more or less differentiated on the basis of body characters, particularly those related to major dimensions of the shell outline and their ratios. Discriminant analysis revealed that the overall random assignment of individuals into their original groups was high (81.8%), indicating that these populations are highly divergent from each other. The proportion of individuals correctly classified into their original groups was 96.9, 76.7, 75.0, 78.0 and 82.0% for populations 1, 2, 3, 4 and 5 respectively. Cluster analysis showed highest morphological variation between Pop.1 and Pop. 2. All other populations (Pop.3, Pop.4 and Pop.5) were found to be morphologically similar and consistent with the respective geographical location. Results of the present study will be of use in resource assessment and management of P. penguin in the South China Sea.

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“…Genetic and morphometric techniques have been widely used to identify stocks of aquatic organisms (Palmer et al, 2004;Aguirre et al, 2006;Konan et al, 2010;Marquez et al, 2010;Tlig-Zouari et al, 2010;Garcia-Rodriguez et al, 2011). Allozyme (Apte and Gardner, 2001), isozyme (Hofstra et al, 1995), simple sequence repeat (Benzie and Smith-Keune, 2006;Lind et al, 2007;Yu et al, 2008), restriction fragment length polymorphism (Itoi et al, 2011), mitochondrial DNA (Cheng et al, 2011;Iwamoto et al, 2012), and random amplification of polymorphic DNA (Kim et al, 2008) are among the genetic techniques used.…”

Section: Introductionmentioning

confidence: 99%

“…There are various morphometric approaches for detecting differences in the form of organisms (Cadrin and Friedland, 1999), e.g., landmark-based analyses (James Rohlf and Marcus, 1993;García-Rodríguez et al, 2011) and elliptic Fourier analysis (EFA) (Laurie et al, 1997;Palmer et al, 2004;Neto et al, 2006;Andrade et al, 2010;de Aranzamendi et al, 2010;Marquez et al, 2010). In addition to modern techniques, traditional methods such as principal component analysis (PCA) are still in use to analyze intraspecific morphometric variation along a geographical range (Konan et al, 2010;Tlig-Zouari et al, 2010;Hahn et al, 2011;Fouquet et al, 2012;Zapata et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Interpopulation differences in shell forms of the pearl oyster, Pinctada imbricata radiata (Bivalvia: Pterioida), in the northern Persian Gulf inferred from principal component analysis and elliptic Fourier analysis

Rajaei¹,

Poorbagher²,

Farahmand³

et al. 2014

Turk J Zool

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Morphometric variation among male populations of freshwater shrimp Macrobrachium vollenhovenii Herklots, 1851 from Côte d’Ivoire Rivers

Cited by 39 publications

References 40 publications

Regulation of laboratory populations of snails (Biomphalaria and Bulinus spp.) by river prawns, Macrobrachium spp. (Decapoda, Palaemonidae): Implications for control of schistosomiasis

Regulation of laboratory populations of snails (Biomphalaria and Bulinus spp.) by river prawns, Macrobrachium spp. (Decapoda, Palaemonidae): Implications for control of schistosomiasis

Morphological variations of the winged pearl oyster Pteria penguin (Roding, 1798) from South China Sea

Interpopulation differences in shell forms of the pearl oyster, Pinctada imbricata radiata (Bivalvia: Pterioida), in the northern Persian Gulf inferred from principal component analysis and elliptic Fourier analysis

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