Life history, biomass and production of two planktonic cyclopoid copepods in a shallow subtropical reservoir

Melão, Maria da Graça Gama

doi:10.1093/plankt/fbh080

Cited by 31 publications

(19 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“….d -1 in a Copepoda assemblage formed by cyclopoids alone (Melão and Rocha, 2004), whereas in the present study, mean production values were 8.08 mgDW.m .d -1 for Cyclopoida. Of additional interest is the fact that Copepoda was the major group with regard to biomass in Barra Bonita Reservoir, whereas in Lagoa Dourada Reservoir, Cladocera was the most important.…”

Section: Discussioncontrasting

confidence: 86%

“…In Brazil, these studies began with Rocha and Matsumura-Tundisi (1984), which determined the biomass and production of Argyrodiaptomus furcatus, the most abundant copepod in the oligotrophic Broa Reservoir. Recently, Melão and Rocha (2004) quantified the production of dominant cyclopoid species in Lagoa Dourada, a small oligotrophic reservoir in Southeast Brazil, during both summer and winter of 1995. Also, Rietzler et al (2004) provided data on Copepoda production in a study of the hypereutrophic Salto Grande reservoir.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Spatial distribution and secondary production of Copepoda in a tropical reservoir: Barra Bonita, SP, Brazil

2007

Braz. J. Biol.

View full text Add to dashboard Cite

The present paper aims to describe the spatial distribution of zooplankton copepods, their biomass and instantaneous secondary production, in Barra Bonita, a large eutrophic, polymitic reservoir (22° 29' S and 48° 34' W) on the Tietê River, of the Paraná basin. Sampling was carried out during two seasons: dry winter and rainy summer. Species composition, age structure and numerical density of each copepod species population were analyzed at 25 sampling stations. Secondary production was calculated for Copepoda, the dominant group in zooplankton communities, taking Calanoida and Cyclopoida separately. Copepoda represented the largest portion of the total zooplankton biomass, the dominant species being Notodiaptomus iheringi among the Calanoida and Mesocyclops ogunnus and Thermocyclops decipiens among the Cyclopoida. The production of Copepoda was higher during the rainy summer (23.61 mgDW.m .d -1 in August 1995), following the general pattern of abundance for the whole zooplankton community. Among the copepods, Cyclopoida production was higher than that of Calanoida, a pattern commonly observed for tropical lakes and reservoirs. Barra Bonita copepods are very productive, but there was a great degree of spatial heterogeneity, related to the physical and chemical conditions, particularly the level of nutrients and also to phytoplankton biomass.Keywords: reservoir ecology, Copepoda production, tropical reservoir, zooplankton distribution.Distribuição espacial e produção secundária de Copepoda em um reservatório tropical em Barra Bonita, SP, Brasil Resumo O presente estudo visou avaliar a distribuição espacial e quantificar a biomassa e a produção secundária de copépodos em Barra Bonita, um reservatório eutrófico e polimítico (22° 29' S e 48° 34' W) no rio Tietê, bacia do rio Paraná. As amostragens foram realizadas em duas estações do ano: inverno seco e verão chuvoso. A composição de espécies, a estrutura etária e a densidade numérica de cada população foram analisadas em 25 estações de amostragem. A produção secundária foi calculada para Copepoda, o grupo dominante na comunidade zooplanctônica, considerando Calanoida e Cyclopoida separadamente. Copepoda representou a maior porção da biomassa do zooplâncton total, sendo Notodiaptomus iheringi a espécie dominante entre os Calanoida e Mesocyclops ogunnus e Thermocyclops decipiens entre os Cyclopoida. A produção de Copepoda foi maior no verão chuvoso (23, .d -1 em janeiro de 1995), comparada àquela registrada no período de inverno e seca (14 mgPSm -3.d -1 em agosto de 1995), seguindo o padrão geral da abundância de toda a comunidade zooplanctônica. Entre os copépodos, a produção de Cyclopoida foi mais alta que a de Calanoida, um padrão normalmente observado para lagos e reservatórios tropicais. Os Copépodos do reservatório de Barra Bonita foram muito produtivos, mas houve uma grande heterogeneidade espacial, relacionada a condições físicas e químicas, particularmente nutrientes e a biomassa fitoplanctônica na porção superior do reservatório.Palavras-chave: ecol...

show abstract

Section: Discussioncontrasting

confidence: 86%

Section: Introductionmentioning

confidence: 99%

Spatial distribution and secondary production of Copepoda in a tropical reservoir: Barra Bonita, SP, Brazil

2007

Braz. J. Biol.

View full text Add to dashboard Cite

show abstract

“…Therefore, this species can indicate systems with oxygen depletion. Also, Melão & Rocha (2004) found a high abundance of T. prasinus in the summer (rainy season), a period of large inputs of allochtonous material.…”

Section: Microcyclops Ancepsmentioning

confidence: 97%

Potential Use of Cyclopoida (Crustacea, Copepoda) as Trophic State Indicators in Tropical Reservoirs

Silva

2011

Oecol Aust

View full text Add to dashboard Cite

The pelagic zones of fifty three São Paulo State reservoirs were sampled as a part of the project "Diversity of zooplankton in relation to conservation and degradation of aquatic ecosystems in the State of São Paulo", within the Biota/Fapesp Program (1999Program ( -2003. The trophic state index (TSI) was calculated, using total phosphorus and chlorophyll a. The Cyclopoida (Copepoda) populations were analyzed, and richness and relative abundance of the dominant species determined. Most values of the TSI ranged from oligotrophic to mesotrophic. The species richness did not present linear relationships with the TSI values. Nine species of Cyclopoida were dominant. Thermocyclops decipiens was the most frequently dominant species, followed by T. minutus, Mesocyclops ogunnus, T. inversus, T. iguapensis, Microcyclops anceps, Tropocyclops prasinus, Microcyclops alius and Mesocyclops longisetus.Correlations between the abundances of different species were highly negative, with values over 85%, especially between the Thermocyclops species. The species that are potential bioindicators due to the relationship between their dominance and reservoir trophic state are the following: Thermocyclops decipiens and Tropocyclops prasinus as indicators of mesotrophic/eutrophic systems; Thermocyclops inversus and Microcyclops anceps as indicators of oligotrophic/mesotrophic systems, Thermocyclops minutus and T. iguapensis as indicators of oligotrophic systems and Mesocyclops ogunnus as indicator of eutrophic systems. Keywords: Bioindicators; zooplankton; water quality. resuMo uso PoteNCial de CyCloPoida (CrustaCea, CoPePoda) CoMo iNdiCador de estado trÓfiCo eM reservatÓrios troPiCais. Cinquenta e três reservatórios do estado de São Paulo foram amostrados, em suas regiões pelágicas, no projeto "Diversidade de zooplâncton em relação à conservação e degradação dos ecossistemas aquáticos do estado de São Paulo" vinculado ao programa Biota/Fapesp (1999-2003. Estes reservatórios tiveram seus índices de estado trófico (IET) calculado com base nos valores de fósforo total e clorofila a, e suas populações de Copepoda Cyclopoida foram calculadas, considerando-se a riqueza e a abundância relativa para as espécies dominantes. A riqueza de espécies não apresentou relação com o estado de trofia dos reservatórios. Nove espécies de Copepoda Cyclopoida foram dominantes em algum reservatório onde a espécie Thermocyclops decipiens foi a que dominou o maior número de reservatórios, seguida por T. minutus, Mesocyclops ogunnus, T. inversus, T. iguapensi, Microcyclops anceps, Tropocyclops prasinus, Microcyclops alius e Mesocyclops longisetus. As espécies mostraram uma alta correlação negativa entre si, acima dos 85%, principalmente entre as espécies congenéricas de Thermocyclops. As espécies mostraram um grande potencial como bioindicadores com a seguinte relação entre TSI e espécie: Thermocyclops decipiens e Tropocyclops prasinus indicam sistemas mesotrófico/eutróficos; Thermocyclops inversus e Microcyclops anceps indicam sistemas oligotrófico/meso...

show abstract

“…It is apparent that food suYciency is a crucial factor in the present study, while temperature has no signiWcant eVect on molting and survival. Since increase in temperature increases metabolic rates in warm-water copepods, the food need increases at the higher temperatures (Ianora 1998;Melão et al 2004;Pu et al 2004). This eVect could have been visible at intermediate food levels, although it is not evident at starvation or food saturation.…”

Section: Discussionmentioning

confidence: 99%

Adaptation strategies of copepods (superfamily Centropagoidea) in the White Sea (66°N)

2008

View full text Add to dashboard Cite

Seasonal dynamics of major biochemical features were studied for three abundant egg-diapausing copepods Acartia biWlosa, Centropages hamatus and Temora longicornis, in the White Sea (66°N), between June 2002 and September 2002. Dry weight (DW) and prosome length varied from 0.54 g ind ¡1 and 0.163 § 0.012 mm (A. biWlosa, CI) to 9.58 § 0.72 g ind ¡1 and 1.135 § 0.167 mm (C. hamatus, females). C org and N org content reached up to 5.91 § 0.44 and 1.23 § 0.09 g ind ¡1 (C. hamatus, females). Protein and lipid content varied greatly from 31.8 to 67.3% DW and from 8.7 to 42.6% DW, respectively. These species show somewhat diVerent biology compared to species at lower latitudes. The copepods use lipid stores to survive during short-term food shortage (e.g. in autumn) and successfully complete their life cycle. In the isolated White Sea during last post-glacial period, species probably evolved some special biochemical features (especially wax esters presence). Food quality demands and long ice coverage are possible factors limiting early development of species in spring.

show abstract

Life history, biomass and production of two planktonic cyclopoid copepods in a shallow subtropical reservoir

Cited by 31 publications

References 32 publications

Spatial distribution and secondary production of Copepoda in a tropical reservoir: Barra Bonita, SP, Brazil

Spatial distribution and secondary production of Copepoda in a tropical reservoir: Barra Bonita, SP, Brazil

Potential Use of Cyclopoida (Crustacea, Copepoda) as Trophic State Indicators in Tropical Reservoirs

Adaptation strategies of copepods (superfamily Centropagoidea) in the White Sea (66°N)

Contact Info

Product

Resources

About