A report on Lecanidae (Rotifera: Monogononta) from Andhra Pradesh, India, including six new distribution records with notes on their contemporary taxonomic nomenclature

Siddiqi, S. Z.; Karuthapandi, M.

doi:10.11609/jott.o3095.4556-61

Cited by 5 publications

(5 citation statements)

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“…This situation is to be expected in the majority of shallow environments with a developed littoral zone colonized by macrophytes (Fantin-Cruz et al, 2010;Sousa & Elmoor-Loureiro, 2012). Rotifer species registered in this study belonged to Lecanidae, family inhabiting shallow and littoral areas and often associated with plants ( Padovesi-Fonseca et al, 2011;Siddiqi & Karuthapandi, 2013). There was a relative predominance of young forms of Copepoda and this pattern has been the most common, as observed by López & Sampaio (2000) and Silveira et al (2010) in shallow systems.…”

Section: Factors That Structure the Beta Diversity Of Zooplankton Comsupporting

confidence: 77%

Factors that drive zooplankton diversity in Neo-Tropical Savannah shallow lakes

Padovesi-Fonseca

Rezende

2017

Acta Limnol. Bras.

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Abstract:Zooplankton is an important community in aquatic ecosystems due to its linkage between primary producers and secondary consumers also playing a key role in cycling of organic materials. Aim: Therefore, our objective was to evaluate the effects of physicochemical variables of the water on the diversity of zooplankton community in seven tropical shallow lakes of Brazilian savannah. Methods: Zooplankton samples were taken using a bucket and filtered 200 L by a 64 µm-mesh-plankton-net, and preserved for subsequent identification. Water temperature, dissolved oxygen, pH, electrical conductivity, turbidity, chlorophyll-a, ammonium, nitrate, nitrite, total phosphorus, and soluble reactive phosphorus were measured. Results: The turbidity (decreases the temperature, luminosity and the system productivity) and ammonium (increases the toxicity) values were the major factors responsible for structuring the zooplankton community. On the other hand, also nitrogen and phosphorus (increase the productivity) are limiting in savannah lentic systems for the zooplankton. The higher α diversity was positively associated with aquatic macrophytes (increase of niches and refuge), whereas lakes with geographic proximity increase the similarity in species composition, decreasing the β diversity. Conclusions: We conclude that the deterministic processes (niche theory), due to species have different ecological requirements, are different responses to environmental gradients and increase the diversity in heterogenic lentic systems.Keywords: α diversity; β diversity; nutrients; habitat heterogeneity; lentic systems.Resumo: O zooplâncton é uma comunidade importante nos ecossistemas aquáticos por ser o elo entre os produtores primários e os consumidores secundários, além de desempenharem um papel fundamental no ciclo de materiais orgânicos. Objetivo: Nosso objetivo foi avaliar os efeitos das variáveis físicas e químicas da água na diversidade de zooplâncton em sete lagoas rasas tropicais da savana brasileira. Métodos: As amostras de zooplâncton foram coletadas usando balde e filtrando 200 litros em rede de plâncton com abertura de 64 µm, e preservadas para posterior identificação. A temperatura da água, oxigênio dissolvido, pH, condutividade elétrica, turbidez, clorofila-a, amônio, nitrato, nitrito, fósforo total, fósforo reativo solúvel, cobertura de macrófita da lamina d'água foram obtidos. Resultados: A turbidez (ao diminui a temperatura, a luminosidade e a produtividade do sistema) e os valores de amônio (por aumenta a toxicidade) foram os principais fatores responsáveis pela estruturação do zooplâncton. Por outro lado, o nitrogênio e o fósforo (por aumentar a produtividade) são limitantes para o zooplâncton nos sistemas lênticos de savana. A maior diversidade α foi associada 2 Padovesi-Fonseca, C. and Rezende, R.S.

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Section: Factors That Structure the Beta Diversity Of Zooplankton Comsupporting

confidence: 77%

Factors that drive zooplankton diversity in Neo-Tropical Savannah shallow lakes

Padovesi-Fonseca

Rezende

2017

Acta Limnol. Bras.

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“…In addition, seven new species described from India are already synonymized by Segers ; these include L. donnerianus Dhanapathi (= L. ungulata ), L. neali Wulfert (= L. crepida ), L. paradecipiens Nayar (= L. thalera ), L. curvilinealis Arora (= L. curvicornis ), L. longidactyla Arora (= L. curvicornis ), L. tesselata (= L. nitida ), and L. yamunensis Novotná‐Dvorakova (= L. papuana ). The unwarranted listing of majority of these as valid species and inclusion of misidentifications is continued by Dhanapathi ; this work followed unabated by Siddiqi and Karuthapandi aggravates more incorrect and dubious reports.…”

Section: Discussionmentioning

confidence: 99%

“…The situation is complicated by poor descriptions of new species and the lack of deposition of type specimens. Even a compilation of rotifers by Dhanapathi relying on misidentifications and poor illustrations of the taxon adds to taxonomic anomalies, while a more recent note by Siddiqi and Karuthapandi includes dubious reports and incorrect identifications due to poor expertise. In light of these concerns, we review the taxonomic status of the Indian Lecanidae and present an annotated checklist of valid species.…”

Section: Introductionmentioning

confidence: 99%

Indian Lecanidae (Rotifera: Eurotatoria: Monogononta) and its distribution

Sharma

2014

Internat. Rev. Hydrobiol.

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Taxonomic status of the Lecanidae of India is evaluated based on our collections and the published reports, and an annotated check-list of 83 species is presented. These comprise nearly 41.0% of the global diversity of the taxon and $21.0% of the known species of Indian Rotifera. Biogeographically interesting lecanids include two Australian and Asian; eight Oriental endemic; four Indian endemic; eight Holarctic; two arctic-temperate and five paleotropical elements, while several species exhibit regional distributional importance. Three species are new to India and the rare L. bulla diabolica is new to northeast India. The diversity pattern of the Indian Lecanidae is predominantly tropical, and has a moderate endemicity. The lecanids are studied in greater detail in certain states of northeast India and from the states of West Bengal (East India) and Tamil Nadu in South India; unfortunately, their diversity from other parts of this country, including the biodiversity important Himalayan region and Western Ghats, remains poorly known. Besides, analysis of cryptic diversity in the L. bulla, L hamata, L. leontina, L. ludwigii, L. lunaris, and L. quadridentata species group complexes deserves attention for further research on rotifer biogeography. Our conservative estimate of occurrence of nearly 100 species of Lecanidae in India merits biodiversity value.

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“…A compilation of rotifers by Dhanapathi (2000) relying on misidentifications and poor illustrations of the taxon added to such anomalies. This trend has continued unabated in a report on Lecanidae from Andhra Pradesh by Siddiqi & Karuthapandi (2013 (Segers 1995) with L. ungulata. The unwarranted listing of these taxa as valid species has been continued by Siddiqi & Karuthapandi (2013).…”

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confidence: 99%

“…This trend has continued unabated in a report on Lecanidae from Andhra Pradesh by Siddiqi & Karuthapandi (2013 (Segers 1995) with L. ungulata. The unwarranted listing of these taxa as valid species has been continued by Siddiqi & Karuthapandi (2013). In addition, our remarks on status of various species are summarized in Table 1.…”

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confidence: 99%