Spread of Elodea canadensis in Lake Baikal

Kozhova, O. M.; lzhboldina, L. A.

doi:10.1007/bf00006600

Cited by 16 publications

(8 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Submerged vascular macrophytes, commonly referred to as submerged aquatic vegetation (SAV) in the Chesapeake Bay, provide necessary habitat and/or food for invertebrates, fish, and waterfowl (Rozas and Odum 1988;Perry and Deller 1996), but the quality of this habitat is threatened by the stress of diminishing water quality and invasion by exotic species. Despite the global prevalence of these stressors on SAV (Litav and Agame 1976;Phillips et al 1978;Kozhova and Izhboldina 1993), there is a lack of long-term and quantitative data with which to characterize the behavior of a SAV community subject both to such stresses and to restorative efforts to improve water quality.…”

mentioning

confidence: 99%

Long‐term changes in abundance and diversity of macrophyte and waterfowl populations in an estuary with exotic macrophytes and improving water quality

Rybicki

Landwehr

2007

Limnology & Oceanography

View full text Add to dashboard Cite

We assessed species-specific coverage (km 2 ) of a submerged aquatic vegetation (SAV) community in the fresh and upper oligohaline Potomac Estuary from 1985 to 2001 using a method combining field observations of species-proportional coverage data with congruent remotely sensed coverage and density (percent canopy cover) data. Biomass (estimated by density-weighted coverage) of individual species was calculated. Under improving water quality conditions, exotic SAV species did not displace native SAV; rather, the percent of natives increased over time. While coverage-based diversity did fluctuate and increased, richness-based community turnover rates were not significantly different from zero. SAV diversity was negatively related to nitrogen concentration. Differences in functional traits, such as reproductive potential, between the dominant native and exotic species may explain some interannual patterns in SAV. Biomass of native, as well as exotic, SAV species varied with factors affecting water column light attenuation. We also show a positive response by a higher trophic level, waterfowl, to SAV communities dominated by exotic SAV from 1959 to 2001.

show abstract

mentioning

confidence: 99%

Long‐term changes in abundance and diversity of macrophyte and waterfowl populations in an estuary with exotic macrophytes and improving water quality

Rybicki

Landwehr

2007

Limnology & Oceanography

View full text Add to dashboard Cite

show abstract

“…It is known that allelopathic interactions also influence the composition and abundance of epiphyton (Leu et al 2002;Gross 2003). Mass growth of the genus Cocconeis on leaf surfaces of Elodea сanadensis is probably attributable to the diatoms' resistance to elevated peroxidase activity in this pondweed (Kozhova et al 1985). Lake Baikal epiphyton are largely similar to those of other European water bodies.…”

Section: Resultsmentioning

confidence: 89%

Structure of epiphyton communities on Lake Baikal submerged macrophytes

Pomazkina¹,

Кравцова²,

Sorokovikova³

2012

Limnological Review

View full text Add to dashboard Cite

We carried out a first study of Lake Baikal epiphyton on six species of submerged macrophytes: Myriophyllum spicatum L., Potamogeton perfoliatus L., Potamogeton sp., Sparganium gramineum Georgi, Ceratophyllum demersum L., and Elodea сanadensis Michaux. We identified 70 epiphyton species and intraspecific taxa belonging to 3 phyla, viz. Ochrophyta, Cyanobacteria, and Chlorophyta. Nine species of Cyanobacteria were new records for Lake Baikal. Epiphyton communities differing in species composition and quantitative characteristics grew on diverse species of submerged macrophytes. High levels of species richness were recorded on Sparganium gramineum and Potamogeton sp., whereas low diversity of epiphyton was observed on Myriophyllum spicatum and Elodea canadensis. A monodominant community was revealed on the invasive Elodea canadensis represented by Cocconeis placentula var. placentula. Specific characteristics of morphology of submerged macrophytes influenced the structural organization and quantitative development of epiphyton. Epiphyton abundance and biomass were higher on upper sections of most plants than on lower sections, probably because of canopy shading of macrophyte lower portions.

show abstract

“…In the second 'Biological pollution' in the form of introduced species also provides risks for the lake. The main pollutant is Elodea canadensis Michx., which invaded the lake in the middle of the 70s (Kozhova & Izhboldina 1993). Its distribution in the lake is shown in Fig.…”

Section: Fluctuation In Fish and Seal Populationsmentioning

confidence: 97%

“…1, points of discovery; 2, points free of E. canadensis. After Kozhova & Izhboldina, 1993. occupying the western slopes of the Barguzin Range. Its boundaries include 45km of the coastline.…”

Section: Fluctuation In Fish and Seal Populationsmentioning

confidence: 99%

See 1 more Smart Citation

The current problems of Lake Baikal ecosystem conservation

Kozhova

Silow

1998

Lakes & Reservoirs

View full text Add to dashboard Cite

The greatest world reservoir of fresh water, the unique Lake Baikal, is at risk from anthropogenic influence. Three stages of economic activity in the lake region can be distinguished: (i) poor economic uses, (ii) increase of economic uses after the construction of the hydropower station dam on the outflow of the lake, and (iii) intensive increase of economic activity, characterized by the intensive use of mineral fertilizers, transportation, log rafting, growth of population around Baikal, mass development of tourism, the construction of the Baikal-Amur railroad and pulp combines. Chemical and biological pollution of the lake, fishing and hunting, the state of coasts and protected areas are discussed. The regions most affected are listed. The greater long-term influence is an increase in the mineralization of tributary waters due to forest cutting and land cultivation. Though the influence does not cause a decline in water quality, the properties of the Baikalian water in local sites of pollution can significantly differ from their initial state. The quality of water, however, is within the limits of requirements for fresh drinking water,

show abstract

Spread of Elodea canadensis in Lake Baikal

Cited by 16 publications

References 0 publications

Long‐term changes in abundance and diversity of macrophyte and waterfowl populations in an estuary with exotic macrophytes and improving water quality

Long‐term changes in abundance and diversity of macrophyte and waterfowl populations in an estuary with exotic macrophytes and improving water quality

Structure of epiphyton communities on Lake Baikal submerged macrophytes

The current problems of Lake Baikal ecosystem conservation

Contact Info

Product

Resources

About