The effects of small fish presence on a species-poor community dominated by omnivores: Example of a size-based trophic cascade

Compte, Jordi; Gascón, Stéphanie; Quintana, Xavier D.; Boix, Dani

doi:10.1016/j.jembe.2012.03.004

Cited by 19 publications

(27 citation statements)

References 87 publications

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“…In other studies performed in Mediterranean wetlands, planktivorous fish had an important role in the structure of the aquatic assemblages (Compte et al, 2012). In our study, cladocerans were more diverse and appeared in high densities where fish were absent or had low densities (GC and EL).…”

Section: Influence Of Fishsupporting

confidence: 55%

Aquatic invertebrate assemblages in ponds from coastal Mediterranean wetlands

Antón-Pardo

Armengol

2014

Ann. Limnol. - Int. J. Lim.

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-Invertebrate aquatic assemblages in ponds from Mediterranean wetlands are composed of organisms belonging to different taxonomic groups, which present a wide range of sizes (from small rotifers to large crustaceans or insects). Although they are often sampled and analyzed separately, the ecological links among these organisms should be considered, especially in very shallow waters. In our study, invertebrate assemblages (including micro-, macrozooplankton and macroinvertebrates) were characterized in eight shallow lakes from Mediterranean wetlands in Southeastern Spain. A great spatial and temporal variability in the assemblages and in some environmental features was observed. The community was dominated in abundance and species richness by rotifers in most of the water bodies. Fish greatly contributed to the differences in community composition, as fishless ponds presented abundant and diverse cladoceran populations. Nutrient and chlorophyll-a concentration, conductivity and macrophyte cover had also a great influence on these assemblages, especially in micro-and macrozooplankton. The temporal changes observed in some of these variables affect the proportion of invertebrate biomass of the different groups along the study period. All this environmental heterogeneity produces similar responses in the invertebrate groups, in general well adapted to salinity changes or high trophic conditions. Although the heterogeneity and human disturbances can increase regional diversity, they can cause the disappearance of valuable habitats, and finally, the homogeneity in invertebrate assemblages.

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Section: Influence Of Fishsupporting

confidence: 55%

Aquatic invertebrate assemblages in ponds from coastal Mediterranean wetlands

Antón-Pardo

Armengol

2014

Ann. Limnol. - Int. J. Lim.

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“…We employed the presence/absence method (P/A) to evaluate the effects of fish on TN, TP and the phytoplankton community (Compte et al, 2012). The P/A values are calculated as: log 10 (X presence /X absence ), where X presence and X absence mean the values of fish presence and fish absence respectively for all sampling points.…”

Section: Methodsmentioning

confidence: 99%

Silver carp exhibited an enhanced ability of biomanipulation to control cyanobacteria bloom compared to bighead carp in hypereutrophic Lake Taihu mesocosms

Chen

Li-wei

et al. 2016

Ecological Engineering

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“…Thus, many of them have been abandoned or their use has changed with deleterious effects on biodiversity (Ortega et al, 2004;López et al, 2010) and, in particular, on the conservation of Mediterranean cyprinodontids. Due to species conservation concerns, several studies have recently increased our knowledge of the biological characteristics of the Iberian toothcarp, including feeding ecology (Alcaraz & García-Berthou, 2007), ecophysiology (Oliva-Paterna et al, 2007;García-Alonso et al, 2009), interactions with exotic species (Rincón et al, 2002;Caiola & De Sostoa, 2005) and ecological interactions (Casas et al, 2011;Compte et al, 2012). There are, however, few studies analysing the habitat preferences of Iberian toothcarp at the meso-, or microhabitat scale and no studies have been done in artificial systems such as salt exploitation wetlands.…”

Section: Introductionmentioning

confidence: 99%

“…As mentioned above, an understanding of species habitat use has important management implications for its conservation in similar wetlands, as well as for other endangered cyprinodontids inhabiting similar aquatic systems. Moreover, knowledge of the Iberian toothcarp microhabitat use might be important for wetland ecologists, in order to gain a better understanding of the effects of its activity on the structure and composition of the invertebrate community in shallow wetlands (Compte et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Habitat use of an endangered cyprinodontid fish in a saline wetland of the Iberian Peninsula (SW Mediterranean Sea)

et al. 2013

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Aphanius iberus is an endemic fish restricted to a few populations along the Spanish Mediterranean coastline and included in international red lists. Information on its ecological requirements is needed to implement effective recovery and conservation measures. This two-year study aimed to analyse the effect of habitat changes, mainly in water salinity and refuge availability, on the life-history traits and microhabitat use of an A. iberus population inhabiting a littoral wetland managed for salt exploitation. The species was more abundant at the intake pond, which was characterised by lower water conductivity values and higher cover of the submerged macrophyte Ruppia cirrhosa. The pond with the highest values of water conductivity showed no presence of newborn individuals (< 10 mm), which probably indicates the reproduction failure of A. iberus or high mortality rates for younger individuals. Overall, the species’ selection of microhabitats was related to refuge presence (submerged vegetation and pond dykes). Juvenile individuals showed a strong dependence on sheltered microhabitats through the studied ponds, with R. cirrhosa meadows as important refuge areas for this age group. Results highlighted the importance of developing traditional maintenance and management measures for the conservation of such endangered fish species.

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The effects of small fish presence on a species-poor community dominated by omnivores: Example of a size-based trophic cascade

Cited by 19 publications

References 87 publications

Aquatic invertebrate assemblages in ponds from coastal Mediterranean wetlands

Aquatic invertebrate assemblages in ponds from coastal Mediterranean wetlands

Silver carp exhibited an enhanced ability of biomanipulation to control cyanobacteria bloom compared to bighead carp in hypereutrophic Lake Taihu mesocosms

Habitat use of an endangered cyprinodontid fish in a saline wetland of the Iberian Peninsula (SW Mediterranean Sea)

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