A mine waste discharge rich in copper — an example of effects on planktonic communities

Oliveira, R.; Monteiro, Teresa; Cabçadas, C.; Vale, Carlos; Brogueira, Maria José

doi:10.1080/03680770.1983.11897694

Cited by 2 publications

(1 citation statement)

References 13 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…was the dominant species in 78% of them and K. cochlearis in 56%. Other species, such as A. priodonta and S. pectinata, were dominant in 11% of the reservoirs, and C. pelagica in 4% (Monteiro, 1982a(Monteiro, , 1982b(Monteiro, , 1984a(Monteiro, , 1984b(Monteiro, , 1984cOliveira et al, 1985;Branco & Guimarges, 1988). In fact, K. cochlearis and Polyarthra spp.…”

Section: Discussionmentioning

confidence: 99%

Seasonal fluctuation of planktonic rotifers in Azibo reservoir (Portugal)

Vasconcelos¹

1994

Hydrobiologia

View full text Add to dashboard Cite

The rotifers of the recently-commissioned Azibo reservoir were studied during two years. The community was similar to that of other Portuguese reservoirs with Keratella cochlearis, Polyarthra spp., Asplanchna priodonta and Collotheca pelagica dominant, although densities varied strongly. Maximum rotifer density was 640 ind 1-' in 1987 and 315 ind I-' in 1988. During the first year two density peaks were observed, while in the second year fluctuations were irregular. Phytoplankton availability was considered the main reason for the fluctuation of rotifer density, although temperature, dissolved oxygen and cladoceran interference may also have played a role. A high density of AnabaenaJlos-aquae might have facilitated the dominance of K. cochlearis in 1988.

show abstract

Section: Discussionmentioning

confidence: 99%

Seasonal fluctuation of planktonic rotifers in Azibo reservoir (Portugal)

Vasconcelos¹

1994

Hydrobiologia

View full text Add to dashboard Cite

show abstract

Phytoplankton communities response to a mine effluent rich in copper

Oliveira

1985

Hydrobiologia

View full text Add to dashboard Cite

The effects of a mine effluent containing high copper levels on the structure of the .phytoplankton communities in a chain of low alkalinity and hardness oligotrophic reservoirs situated north of Portugal were studied monthly, during 1981-1982. In the reservoirs under mine influence, a shift in the dominant species have occurred. In contrast with the uncontaminated areas, more than 50% of the algal species developed lower populations. At the most polluted zone, phytoplankton density, biomass and species number were strongly reduced. The mine input stress on the algal communities was well assessed by species number and percentage similarity index.

show abstract

A mine waste discharge rich in copper — an example of effects on planktonic communities

Cited by 2 publications

References 13 publications

Seasonal fluctuation of planktonic rotifers in Azibo reservoir (Portugal)

Seasonal fluctuation of planktonic rotifers in Azibo reservoir (Portugal)

Phytoplankton communities response to a mine effluent rich in copper

Contact Info

Product

Resources

About