Cascading trophic effects in pampean shallow lakes: results of a mesocosm experiment using two coexisting fish species with different feeding strategies

2007 ◽  
pp. 215-222
Author(s):  
María B. Boveri ◽  
Rolando Quirós
Keyword(s):  
Fish Species ◽  
Shallow Lakes ◽  
Mesocosm Experiment ◽  
Feeding Strategies ◽  
Trophic Effects ◽  
Pampean Shallow Lakes

Energetic Asymmetry Connected with Energy Flow Changes in Response to Eutrophication: A Study of Multiple Fish Species in Subtropical Shallow Lakes

2020 ◽  
Vol 67 (4) ◽  
pp. 305
Author(s):  
Hong Fu ◽  
Huan Zhang ◽  
Liang He ◽  
Yongcui Sha ◽  
Kangshun Zhao ◽  
...  
Keyword(s):  
Fish Species ◽  
Shallow Lakes ◽  
Energy Flow ◽  
Flow Changes

Phytoplankton limitation in Patagonian and Pampean shallow lakes: effect of phosphorus and light

Hydrobiologia ◽  
2017 ◽  
Vol 816 (1) ◽  
pp. 91-105 ◽  
Author(s):  
Ana Torremorell ◽  
María del Carmen Diéguez ◽  
Claudia Queimaliños ◽  
Irina Izaguirre ◽  
Horacio E. Zagarese
Keyword(s):  
Shallow Lakes ◽  
Pampean Shallow Lakes

Effects of nutrient and water level changes on the composition and size structure of zooplankton communities in shallow lakes under different climatic conditions: a pan-European mesocosm experiment

2017 ◽  
Vol 51 (2) ◽  
pp. 257-273 ◽  
Author(s):  
Ülkü Nihan Tavşanoğlu ◽  
Michal Šorf ◽  
Konstantinos Stefanidis ◽  
Sandra Brucet ◽  
Semra Türkan ◽  
...  
Keyword(s):  
Water Level ◽  
Shallow Lakes ◽  
Size Structure ◽  
Climatic Conditions ◽  
Mesocosm Experiment ◽  
Water Level Changes ◽  
Zooplankton Communities

scholarly journals Response of zooplankton to nutrient enrichment and fish in shallow lakes: a pan-European mesocosm experiment

2004 ◽  
Vol 49 (12) ◽  
pp. 1619-1632 ◽  
Author(s):  
Kirsi Vakkilainen ◽  
Timo Kairesalo ◽  
Jaana Hietala ◽  
David M. Balayla ◽  
Eloy Becares ◽  
...  
Keyword(s):  
Shallow Lakes ◽  
Nutrient Enrichment ◽  
Mesocosm Experiment

scholarly journals Species- and size-related patterns in stable isotopes and mercury concentrations in fish help refine marine ecosystem indicators and provide evidence for distinct management units for hake in the Northeast Atlantic

2014 ◽  
Vol 71 (5) ◽  
pp. 1073-1087 ◽  
Author(s):  
T. Chouvelon ◽  
F. Caurant ◽  
Y. Cherel ◽  
B. Simon-Bouhet ◽  
J. Spitz ◽  
...  
Keyword(s):  
Fish Species ◽  
Trophic Level ◽  
Trophic Ecology ◽  
Marine Ecosystem ◽  
Feeding Strategies ◽  
Bay Of Biscay ◽  
Management Units ◽  
Δ13c And Δ15n ◽  
Northeast Atlantic ◽  
European Hake

Abstract Recent European environmental policies argue for the development of indicators of the ecological status of ecosystems that are easy to implement and powerful enough to detect changes quickly. For instance, some indicators that are currently proposed for monitoring foodweb structure and functioning are based on the size of organisms, using size as a proxy for trophic level. However, these indicators do not necessarily accurately reflect the underlying trophic structure and dynamics to follow. Ecological tracers (i.e. chemical parameters measured in consumer tissues to infer the trophic ecology of organisms) may serve as complementary indicators of trophic level, and may also help distinguish different populations of a species when more commonly used methods (e.g. genetic, age determination) present their own limitations. Here, we analysed the potential of muscle δ13C and δ15N values and of muscle mercury (Hg) concentrations to depict size-related trophic habits of different fish species. We expected that intra- and interspecific variation in these ecological tracers could be helpful in refining currently proposed indicators of marine ecosystems, and also help in discriminating management unitsfor some species. Four fish species were selected for their economical and/or ecological importance in the Bay of Biscay (Northeast Atlantic): whiting Merlangius merlangus, European hake Merluccius merluccius, Atlantic horse mackerel Trachurus trachurus and anglerfish Lophius piscatorius. Muscle δ13C and δ15N values segregated the species and enabled us to discriminate species-specific feeding strategies with increasing size of individuals. Fish body size was not always linearly correlated with δ15N or trophic level. In contrast, Hg concentrations and size-related Hg patterns were more similar from species to species. Interestingly, muscle δ15N values together with Hg concentrations segregated the two putative stocks of European hake within the Bay of Biscay. Hence, we propose the combined use of ecological tracers as a promising method for accurately assigning a consumer to a trophic guild, investigating Hg trophodynamics in foodwebs, and helping discriminate distinct ecological populations within a species when defining management units.

Water level and fish-mediated cascading effects on the microbial community in eutrophic warm shallow lakes: a mesocosm experiment

Hydrobiologia ◽  
2014 ◽  
Vol 740 (1) ◽  
pp. 25-35 ◽  
Author(s):  
Arda Özen ◽  
Tuba Bucak ◽  
Ülkü Nihan Tavşanoğlu ◽  
Ayşe İdil Çakıroğlu ◽  
Eti Ester Levi ◽  
...  
Keyword(s):  
Microbial Community ◽  
Water Level ◽  
Shallow Lakes ◽  
Mesocosm Experiment ◽  
Cascading Effects

The influence of water level on macrophyte growth and trophic interactions in eutrophic Mediterranean shallow lakes: a mesocosm experiment with and without fish

2012 ◽  
Vol 57 (8) ◽  
pp. 1631-1642 ◽  
Author(s):  
TUBA BUCAK ◽  
ECE SARAOĞLU ◽  
ETİ E. LEVİ ◽  
Ü. NİHAN TAVŞANOĞLU ◽  
A. İdİl ÇAKİROĞLU ◽  
...  
Keyword(s):  
Water Level ◽  
Shallow Lakes ◽  
Trophic Interactions ◽  
Mesocosm Experiment ◽  
Influence Of Water ◽  
Macrophyte Growth

scholarly journals The Species Composition and Distribution Patterns of Non-Native Fishes in the Main Rivers of South China

2020 ◽  
Vol 12 (11) ◽  
pp. 4566
Author(s):  
Dang En Gu ◽  
Fan Dong Yu ◽  
Yin Chang Hu ◽  
Jian Wei Wang ◽  
Meng Xu ◽  
...  
Keyword(s):  
Species Composition ◽  
Fish Species ◽  
South China ◽  
Management Practices ◽  
Distribution Patterns ◽  
Freshwater Ecosystems ◽  
Native Fish ◽  
Species Number ◽  
Feeding Strategies ◽  
Native Fishes

Non-native fish invasions are among the greatest threats to the sustainability of freshwater ecosystems worldwide. Tilapia and catfish are regularly cultured in South China which is similar to their climate in native areas and may also support their invasive potential. We systematically collected fish from eight main rivers of South China, from 2016 to 2018, to investigate and analyse species’ composition and the distribution of non-native fishes. The data reveal that non-native fishes are widespread and abundant in the sampled rivers: of the 98,887 fish collected, 11,832 individuals representing 20 species were not native, which were distributed in the 96% sampled sites. Of the non-native fish species, 17 are used in aquaculture and 19 are native to the tropics; 13 are omnivores while the other seven are predators. Based on dissimilarity of the non-native fish species distributions across the eight rivers, the different rivers could be divided into four assemblages. Geographical isolation and temperature were identified as affecting the distribution patterns of non-native fishes, thereby influencing fish species composition, species number, dominant species, and distribution variations in the South China rivers. Species composition of the non-native fishes in these rivers are related to their introduction vector, compatibility with their native habitat, and feeding strategies. Their distribution was mainly influenced by geographical location and temperature. To mitigate the impacts of non-native fish, a series of stricter management practices, systematic monitoring, and more research are needed.

Sign in / Sign up

Export Citation Format

Share Document