The impact of predation by burbot (Lota lota L.) on the macroinvertebrate community in the littoral zone of a large lake

2005 ◽  
Vol 39 (1) ◽  
pp. 79-92 ◽  
Author(s):  
Daniel Baumgärtner ◽  
Karl-Otto Rothhaupt
Keyword(s):  
Littoral Zone ◽  
Macroinvertebrate Community ◽  
Large Lake ◽  
Lota Lota ◽  
The Impact

scholarly journals Opposing diel migration of fish and zooplankton in the littoral zone of a large lake

Hydrobiologia ◽  
2007 ◽  
Vol 600 (1) ◽  
pp. 139-146 ◽  
Author(s):  
Andreas Lorke ◽  
Arnd Weber ◽  
Hilmar Hofmann ◽  
Frank Peeters
Keyword(s):  
Littoral Zone ◽  
Large Lake ◽  
Diel Migration

scholarly journals Impact of heated waters on water quality and macroinvertebrate community in the Narew River (Poland)

2017 ◽  
Vol 12 (1) ◽  
pp. 190-199 ◽  
Author(s):  
Elzbieta Krolak ◽  
Krzysztof Lewandowski ◽  
Zbigniew Kasprzykowski
Keyword(s):  
Diversity Index ◽  
Individual Characteristics ◽  
Macroinvertebrate Community ◽  
Water Parameters ◽  
Power Stations ◽  
Wiener Diversity Index ◽  
The Individual ◽  
The Impact ◽  
Dikerogammarus Haemobaphes ◽  
Sinanodonta Woodiana

AbstractThe effect of heated waters from coal-burning power stations on the water parameters and the occurrence of macroinvertebrates depends on the individual characteristics of the river to which the heated waters are discharged. The objective of the study was to assess the impact of heated water from the Ostrołęka Power Station on selected water properties and the macroinvertebrate community in the Narew River. Samples were collected in years: 2013-2016 along two river stretches: upstream and downstream of the canal. The water temperature was higher and the oxygen concentrations were lower at the downstream sites compared to the upstream sites of the canal. The values of conductivity, concentrations of nitrates, phosphates, chlorides and calcium were similar at the sampling sites. A total of 33 families of macrozoobenthos were found. The numbers of families were positively correlated with the temperature and conductivity and negatively correlated with oxygen. The heated waters were found to have no effect on the Shannon-Wiener diversity index. The inflow of heated waters increased the percentage of Gammaridae, represented by species Dikerogammarus haemobaphes (Eichwald, 1841) and decreased the percentage of Chironomidae. The presence of the thermophilous bivalve Sinanodonta woodiana (Lea, 1934) was noted downstream of the canal.

Factors influencing Fish Assemblages and Species Richness in Subtropical Florida Lakes and a Comparison with Temperate Lakes

1990 ◽  
Vol 47 (11) ◽  
pp. 2137-2146 ◽  
Author(s):  
A. E. Keller ◽  
T. L. Crisman
Keyword(s):  
Species Richness ◽  
Littoral Zone ◽  
Trophic State ◽  
Fish Assemblages ◽  
Temperate Lakes ◽  
Florida Lakes ◽  
Factors Influencing ◽  
Dissolved Aluminum ◽  
The Impact ◽  
Lake Size

From detailed analyses of 36 lakes, we determined that while species assemblages and richness change with lake size, trophic state, and pH, the responses were not as dramatic in Florida as in temperate lakes. At a given pH, there were more species in Florida lakes than in comparable lakes of the temperate zone. The impact of lake size on species richness was also less obvious in Florida lakes. The greater importance of centrarchids, increased contribution of the littoral zone to primary production, and lower dissolved aluminum levels may contribute to greater species richness in Florida lakes than in temperate lakes of comparable pH or size.

A SPILL OF LIGHT FUEL OIL IN THE BALTIC SEA

1983 ◽  
Vol 1983 (1) ◽  
pp. 517-520
Author(s):  
Olof Linden ◽  
Jan Mattsson ◽  
Mats Notini
Keyword(s):  
Baltic Sea ◽  
Acute Phase ◽  
Littoral Zone ◽  
Water Exchange ◽  
Fuel Oil ◽  
The Baltic Sea ◽  
Littoral Fauna ◽  
One Year ◽  
The Baltic ◽  
The Impact

ABSTRACT The impact of a spill of about 375 tons of light fuel oil in the southern Baltic Sea has been studied for one year. The spill originated from the tanker Sefir which sank to a 50 meter depth about six nautical miles east of the island of Öland. The study showed that the oil formed droplets which were taken up by zooplankton. Up to 50 percent of the zooplankton died during the acute phase of the spill. The oil droplets were well dispersed and sedimented over large areas. In six weeks during the acute phase of the spill, about 20,500 kilograms of oil sedimented over a 10 square kilometer area around the wreck. This corresponds to about 5.5 percent of the total amount of lost oil. Bivalves showed some uptake of oil. The littoral fauna was reduced drastically over a 10 km stretch of the coast. Only 2 percent of the fauna survived. The biomass and number of species also dropped considerably. One year after the spill, a slight recovery could be observed. The severe impact in the littoral zone was caused by a combination of the high toxicity of the oil and the low water exchange in the shallow water. In addition, the low water temperature preserved the toxic properties of the oil.

scholarly journals Tourists increase the contribution of autochthonous carbon to littoral zone food webs in oligotrophic dune lakes

2004 ◽  
Vol 55 (7) ◽  
pp. 701 ◽  
Author(s):  
Wade L. Hadwen ◽  
Stuart E. Bunn
Keyword(s):  
Food Webs ◽  
Littoral Zone ◽  
Algal Biomass ◽  
Carbon Sources ◽  
Nutrient Concentrations ◽  
Relative Importance ◽  
Nutrient Inputs ◽  
Oligotrophic Lakes ◽  
Dune Lakes ◽  
The Impact

Tourists can adversely influence the ecology of oligotrophic lakes by increasing algal production via direct nutrient inputs and/or re-suspension of sediments. To assess the influence of tourists on food web dynamics, we used the natural abundance of stable isotopes of carbon and nitrogen to calculate the relative importance of autochthonous and allochthonous carbon sources to littoral zone food webs across five variously visited perched dune lakes on Fraser Island, Australia. The relative importance of autochthonous (phytoplankton and periphyton) carbon to littoral zone consumers was highly variable across taxa and lakes. Despite the potential influence of algal biomass, ambient nutrient concentrations and tannin concentrations on the contribution of autochthonous carbon to littoral zone food webs, none of these variables correlated to the per cent contribution of autochthonous carbon to consumer diets. Instead, autochthonous sources of carbon contributed more to the diets of aquatic consumers in heavily visited lakes than in less visited lakes, suggesting that tourist activities might drive these systems towards an increased reliance on autochthonous carbon. The assessment of the contribution of autochthonous carbon to littoral zone food webs may represent a more robust indicator of the impact of tourists in oligotrophic lakes than standard measures of nutrient concentrations and/or algal biomass.

scholarly journals Wind exposure as a factor influencing the littoral macrozoobenthic community: a methodological approach and preliminary findings

2019 ◽  
Vol 19 (3) ◽  
pp. 113-123
Author(s):  
Aleksandra Bielczyńska
Keyword(s):  
Littoral Zone ◽  
Negative Impact ◽  
Meteorological Data ◽  
Methodological Approach ◽  
Taxonomic Composition ◽  
Anthropogenic Factors ◽  
Significant Negative Impact ◽  
Wind Exposure ◽  
The Impact ◽  
Macrozoobenthic Community

Abstract The aim of the work was to analyze the influence of wave activity on invertebrate fauna living in the littoral zone. For this purpose, an algorithm was developed to analyze spatial and meteorological data, calculating the values of fetch and wind exposure. The taxonomic composition of the fauna and the values of selected water quality indicators were analyzed against the background of varied wind exposure, trophy, and various habitats. A significant negative impact of wind exposure on the taxonomic variety of the macrozoobenthic community, the number of Coenagrionidae damselflies and Baetidae mayflies was found. It is difficult to separate the impact of waves on the fauna from the impact of other natural and anthropogenic factors, because those factors may also be affected by water movements. The tool produced as part of this work can also be used to further investigate the issue of impact of waves on all the communities living in the littoral zone.

Macroinvertebrate communities in willow (Salix spp.) and reed beds (Phragmites australis) in central Victorian streams in Australia

2006 ◽  
Vol 57 (4) ◽  
pp. 429 ◽  
Author(s):  
J. M. C. K. Jayawardana ◽  
Martin Westbrooke ◽  
Michael Wilson ◽  
Cameron Hurst
Keyword(s):  
Phragmites Australis ◽  
Vegetation Change ◽  
Macroinvertebrate Community ◽  
Macroinvertebrate Communities ◽  
Community Assemblage ◽  
Littoral Habitat ◽  
Species Richness And Abundance ◽  
National Significance ◽  
The Impact ◽  
Salix Spp

Exotic willows (Salix spp.) are widespread riparian tree species of rivers in temperate Australia and New Zealand. Despite being considered as a weed of national significance, little is known about the habitat value of willows and the impact on aquatic biota of vegetation change following willow management programmes. Macroinvertebrate fauna in root habitats of willows and Phragmites australis habitats were examined in three central Victorian rivers to understand the effect of such littoral habitat changes on macroinvertebrates. Data were analysed using Partially Nested Factorial ANOVA with season, river and habitat as main effects. Habitat structure had a significant effect (P < 0.05) on macroinvertebrate community assemblage. However, effect of habitat was not consistent among seasons. The greatest community differences among habitats were observed during winter and least separation during autumn. Taxa responsible for community differences among habitats were also identified. Species richness and abundance did not show consistent variation among habitats over different rivers or seasons. This study provided some indication of the macroinvertebrate community changes that would take place in situations where riparian vegetation changes takes place from willows to P. australis.

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