The Malaysian Tropodiaptomus (Copepoda : Calanoida) and its distribution

Lai, H. C.; Fernando, C. H.

doi:10.1007/bf00032722

Cited by 13 publications

(7 citation statements)

References 5 publications

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“…Mesocyclops thermocyclopoides is an important food source for fish larvae (Heckman, 1979;Lim & Fernando, 1985). Tropodiaptomus vicinus commonly associated with freshwater swamps (Lai & Fernando, 1979) also appeared, albeit sparingly in the samples. The rotifer fauna was fairly diverse with five species dominating (Fig.…”

Section: Resultsmentioning

confidence: 99%

Seasonal dynamics of microcrustacean and rotifer communities in Malaysian rice fields used for rice-fish farming

Ali

1990

Hydrobiologia

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The abundance, seasonal dynamics and species composition of microcrustacean and rotifer communities in rice fields used for rice-cum-fish culture were examined. The shallow littoral-like nature of rice fields resulted in the presence of cladoceran and rotifer species, but copepods were numerically more abundant. Abundance and seasonal dynamics were affected by factors such as pesticides and herbicide use, predator-prey relationships, presence of hydrophytes and interactions among microcrustaceans and rotifers. The implications of microcrustacean and rotifers abundance and seasonal dynamics on rice-fish farming are discussed.

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Section: Resultsmentioning

confidence: 99%

Seasonal dynamics of microcrustacean and rotifer communities in Malaysian rice fields used for rice-fish farming

Ali

1990

Hydrobiologia

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“…Studies available to date for Asian Tropodiaptomus focused on morphological characters only. However, as already stressed by Lai & Fernando 15 , Lai et al 16 , Defaye 17 and Ambedkar 18 , Tropodiaptomus species show a noteworthy variation in the morphology of male fifth pair of legs and antennule, i.e., those characters which are traditionally used for species identification in diaptomid copepods (e.g. 13 , 19 ).…”

Section: Introductionmentioning

confidence: 90%

Morphological and molecular diversity patterns of the genus Tropodiaptomus Kiefer, 1932 (Copepoda, Calanoida, Diaptomidae) in Thailand

Saetang

Marrone

Vecchioni

et al. 2022

Sci Rep

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Tropodiaptomus is one of the most specious genera in the family Diaptomidae, but it is often rare in terms of distribution and abundance. Moreover, Tropodiaptomus species show a noteworthy variability in some of the morphological characters considered of prime importance in diaptomid taxonomy, and the presence of cryptic or pseudocryptic species is likely. Thus, through a geographically-wide sampling in Thailand, we aimed to investigate the local diversity of the genus and to compare the morphological and molecular diversity pattern based on mitochondrial and nuclear genes sequences. DNA taxonomy was also implemented in order to check whether the Tropodiaptomus lineages were independent species according to the “evolutionary genetic species concept”. Six Tropodiaptomus morphospecies were found, three of which are putative species new to Science pending a formal description. The finding of such a high incidence of undescribed species stresses the existence of a significant “Linnean shortfall” affecting Thai diaptomids. The molecular results showed that most of the studied species could be identified consistently with their morphology-based taxonomy. However, Tropodiaptomus vicinus and T. cf. lanaonus showed a high level of genetic diversity, suggesting that traditional morphological techniques might be inadequate for correctly assessing their taxonomical status.

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“…Hence, T. euchaetus is one of the likely candidates to represent the true Tropodiaptomus orientalis of Brady. The distribution-map in South-East Asia of quite a few orientalis-like species given by Lai & Fernando (1979) shows many instances of almost congruent'species' ranges, suggesting that at least some of these taxa might be invalid.…”

Section: Thermodiaptomus Mixtusmentioning

confidence: 99%

The calanoid copepods of the Nile system

Verheye

Dumont

1984

Hydrobiologia

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At least I I or 12 calanoid taxa occur in the Nile system. One species is typical of the river and of Lake Chad (Th. galebi); two are restricted to Lake Victoria (Th. galeboides, T. stuhlmanni), but both might be only subspecies to more widespread species. One is restricted to Lakes Edward and George (T. worthingtoni) but is i little known species. No calanoids are on record from Lakes Albert and Kyoga, while the species reported from Lake Turkana (T. banforanus) is out of range, and almost certainly represents an erroneous record. Among the remaining species, four are East-African, ranging from the southern tip of the continent to the Ethiopian plateau and the Nile valley (P. schultzei, Th. mixtus, T. kraepelini, T. cf orientalis), while two are Sahelian species that span Africa from east to west (M. mauretanicus, T. processifer et ssp.).Two new synonyms are introduced. One new subspecies (T. processifierfriedae) is described from the Ethiopian plateau. It is suggested that Tropodiaptomus orientalis (Brady, 1886), the type species of its genus, should not be considered a nomen dubium, but should be redescribed on its type female(s) and on topotypical males from Sri Lanka. Hydrobiologia 110, 191-212 (1984).

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The Malaysian Tropodiaptomus (Copepoda : Calanoida) and its distribution

Cited by 13 publications

References 5 publications

Seasonal dynamics of microcrustacean and rotifer communities in Malaysian rice fields used for rice-fish farming

Seasonal dynamics of microcrustacean and rotifer communities in Malaysian rice fields used for rice-fish farming

Morphological and molecular diversity patterns of the genus Tropodiaptomus Kiefer, 1932 (Copepoda, Calanoida, Diaptomidae) in Thailand

The calanoid copepods of the Nile system

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