The freshwater calanoida (crustacea : copepoda) of Singapore and Peninsular Malaysia

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

doi:10.1007/bf00018742

Cited by 21 publications

(22 citation statements)

References 2 publications

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“…The taxonomy and distribution of Southeast Asian Calanoida has been dealt with largely by several workers (Brehm, 1923;1933a;1933b;1933c;1951;Kiefer, 932a;Wright, 1928;Lai & Fernando, I978a;1978b;1979c;Bricker et al, 1978). Southeast Asia according to its copepod composition (Meisenheimer, after Brehm, 1953b) There are about half a dozen neodiaptomids in Southeast Asia.…”

Section: Introductionmentioning

confidence: 99%

Zoogeographical distribution of Southeast Asian freshwater Calanoida

Lai

Fernando

1980

Hydrobiologia

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distribution of these organisms in the region. This paper reviews the systematic status and geographical distribution of 30 odd species of freshwater calanoid copepods in Southeast Asia. Three regions are delineated based on the diversity and abundance of these organisms; Region I being the Southasiatic element, Region II the attenuated belt of copepods and Region III rich in endemic species. The implication of a northsouth diminishing of copepod species to inland fisheries is postulated.

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Section: Introductionmentioning

confidence: 99%

Zoogeographical distribution of Southeast Asian freshwater Calanoida

Lai

Fernando

1980

Hydrobiologia

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“…Neodiaptomus is represented by four valid species namely N. schmackeri (Poppe and Richard, 1892), N. physalipus (Kiefer, 1935), N. lindbergi (Brehm 1951), N. intermedius (Flobner, 1984) in Indian subcontinent. Neodiaptomus meggiti is recorded in Mayanmar and Malaysia, Fernando 1978 and while never been reported in Indian subcontinent except of single report from Andaman (Reddy, 2000), whereas N. schmackeri is reported in Thailand (Sanoamuang & Athibai, 2002), mainland India (Reddy and Reddy, 1992) and adjoining countries to Andaman but not reported from Andaman.…”

Section: Discussionmentioning

confidence: 86%

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BEGUM¹,

DHARANI²,

ALTAFF³

2018

GenAqua

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Calanoid copepods belonging to the family Diaptomidae occur commonly and abundantly in different types of freshwater environment. Based on morphological taxonomic key characters 48 diaptomid species belonging to 13 genera were reported from India. Taxonomic discrimination of many species of these genera is difficult due to their high morphological similarities and minute differences in key characters. In the present study two species of the genus, Neodiaptomus, N. meggiti and N. schmackeri from Andaman Islands were examined based on morphological and molecular characters which showed low variation in morphology and differences in their distributions. The morphological taxonomy of Copepoda with genetic analysis has shown complementing values in understanding the genetic variation and phylogeny of the contemporary populations. In this study, a molecular phylogenetic analysis of N. meggiti and N. schmackeri is performed on the basis of mitochondrial Cytochrome c oxidase subunit I (COI) gene. The mtDNA COI sequence of N. meggiti and N. schmackeri is 650 bp long. The mtDNA COI 1 gene sequence data of N. meggiti exhibits a remarkable constancy throughout its distributional area ranging from North to south Andaman. Similarity of N. meggiti with other genera of the family varies from 67.6 to 75.5% while of N. schmackeri varies from 65.5 to 72.6% on the basis of COI gene sequences. While N. meggiti and N. schmackeri share a similarity of 92.3%, high COI gene sequence similarity among each other supports the morphological based data that they belong to the same genus. The phylogenetic relationship elucidated using three different tree-making algorithms, the neighbour joining, minimum evolution and maximum parsimony showed that five plankton specimens under study form two clusters and constituted a deeply rooted, evolutionarily distinct group, separated from the other related genera used in the analysis. The phylogenetic relationship of the two diaptomid copepod N. meggiti and N. schmackeri of Andaman is remarkably accurate when the Neighbor joining phylogenetic tree and as well as maximum parsimony phylogenetic tree are considered.

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“…Samples were preserved in 5 % formalin, and counted in a Sedgewick-Rafter chamber. The microcrustaceans and rotifers were identified by available standard taxonomic references (Fernando & Zankai, 1981;Karunakaran & Johnson, 1978;Lai & Fernando, 1978;1980;Lim and Fernando, 1985;Ong& Lai, 1980;Pennak, 1978;Idris, 1983).…”

Section: Methodsmentioning

confidence: 99%

“…Studies on rice-field zooplankton in Malaysia deal with taxonomy, distribution, and effects of pesticides (Lai & Fernando, 1978;1980;Fernando et al, 1979;Karunakaran & Johnson, 1978;Ong & Lai, 1980;Fernando & Zankai, 1981;Idris, 1983;Lim & Fernando, 1985;Lim et al, 1984). However, the importance of microcrustaceans and rotifers as fish food (Heckman, 1979;Lemly & Dimmick, 1982a;1982b;Ali & Bayne, 1985;Yamasaki et al, 1988) requires research on seasonal dynamics, abundance, and species composition.…”

Section: Introductionmentioning

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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The freshwater calanoida (crustacea : copepoda) of Singapore and Peninsular Malaysia

Cited by 21 publications

References 2 publications

Zoogeographical distribution of Southeast Asian freshwater Calanoida

Zoogeographical distribution of Southeast Asian freshwater Calanoida

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

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