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Fig. 6 in Trophic structure of a fish community in Bananal stream subbasin in Brasília National Park, Cerrado biome (Brazilian Savanna), DF
Fig. 6. Proportion of autochthonous feeding items (black) and allochthonous (gray) with respect to the rainy (C) and dry (S) seasons for the fish species that presented this significant variation. Species abbreviations: Aspidoras fuscoguttatus (aspfus), Astyanax sp. (astsp), Characidium xanthopterum (chaxan), Hasemania sp. (hassp), Hyphessobrycon balbus (hypbal), Heptapterus sp. (hepsp), Knodus moenkhausii (knomoe), Kolpotocheirodon theloura (kolthe), Moenkhausia sp. (moesp), Phalloceros harpagos (phahar), Planaltina myersi (plamye), Rhamdia quelen (rhaque) and Rivulus pictus (rivpic)..
Fig. 1 in Trophic structure of a fish community in Bananal stream subbasin in Brasília National Park, Cerrado biome (Brazilian Savanna), DF
Fig. 1. Localization of the Brasília National Park in the Distrito Federal and distribution of sampling sites in the Bananal stream subbasin, Paranoá Lake basin, DF.
Fig. 5 in Trophic structure of a fish community in Bananal stream subbasin in Brasília National Park, Cerrado biome (Brazilian Savanna), DF
Fig. 5. Feeding items distributed according to the frequency of fish species occurrence (axis X) and relative abundance (axis Y), based upon the method proposed by Amundsen et al (1996): Moenkhausia sp., Phalloceros harpagos, Planaltina myersi, Rhamdia quelen and Rivulus pictus. The number of analyzed stomachs is shown in parentheses.
Fig. 4 in Trophic structure of a fish community in Bananal stream subbasin in Brasília National Park, Cerrado biome (Brazilian Savanna), DF
Fig. 4. Feeding items distributed according to the frequency of fish species occurrence (axis X) and relative abundance (axis Y), based upon the method proposed by Amundsen et al (1996): Aspidoras fuscoguttatus, Astyanax sp., Characidium xanthopterum, Hasemania sp., Hyphessobrycon balbus, Heptapterus sp., Knodus moenkhausii and Kolpotocheirodon theloura. The number of analyzed stomachs is shown in parentheses.
Fig. 2 in Trophic structure of a fish community in Bananal stream subbasin in Brasília National Park, Cerrado biome (Brazilian Savanna), DF
Fig. 2. General view of sites 1 to 7 sampled at the Bananal stream subbasin, Paranoá Lake basin, DF.
Fig. 3. Non-metric multidimensional scaling analysis for the 13 in Trophic structure of a fish community in Bananal stream subbasin in Brasília National Park, Cerrado biome (Brazilian Savanna), DF
Fig. 3. Non-metric multidimensional scaling analysis for the 13 more abundant fish species' diet found in the Bananal stream subbasin, Paranoá Lake basin, DF. Indication of four groups A, B, C and D. Species abbreviations: Aspidoras fuscoguttatus (aspfus), Astyanax sp. (astsp), Characidium xanthopterum (chaxan), Hasemania sp. (hassp), Hyphessobrycon balbus (hypbal), Heptapterus sp. (hepsp), Knodus moenkhausii (knomoe), Kolpotocheirodon theloura (kolthe), Moenkhausia sp. (moesp), Phalloceros harpagos (phahar), Planaltina myersi (plamye), Rhamdia quelen (rhaque) and Rivulus pictus (rivpic).
Fig. 3 in Aquatic insects as the main food resource of fish the community in a Neotropical reservoir
Fig. 3. Cluster analysis of diet similarity among species, showing the trophic guilds of the fish community from the Nova Avanhandava Reservoir.
Fig. 4 in Aquatic insects as the main food resource of fish the community in a Neotropical reservoir
Fig. 4. Relative catch per unit effort (CPUE) in number (CPUEn) and biomass (CPUEb) of trophic guilds of the fish community of the Nova Avanhandava Reservoir.
Fig. 1 in Aquatic insects as the main food resource of fish the community in a Neotropical reservoir
Fig. 1. Position of the NovaAvanhandava Reservoir in the Tietê River, and the location of the sampling stretches: Santa Bárbara stretch (1) and Bonito Stretch (2) (modified from CESP, 1998). Squares = municipalities of São Paulo State.
Fig. 3 in Environmental factors predicting fish community structure in two neotropical rivers in Brazil
Fig. 3. Scatterplot of canonical correspondence analysis (CCA) for the fish communities of the Jogui and Iguatemi Rivers.
Fig. 2 in Environmental factors predicting fish community structure in two neotropical rivers in Brazil
Fig. 2. Similarity dendrogram of fish communities in Jogui River (above) and Iguatemi Rivers (below).
Fig. 4 in Environmental factors predicting fish community structure in two neotropical rivers in Brazil
Fig. 4. Altitudinal distributions of the main fish species in the Jogui (A) and Iguatemi (B) rivers. Black dots represent sampling sites. Horizontal black lines represent species distribution range.
Fig. 1. A in Integrity of fluvial fish communities is subject to environmental gradients in mountain streams, Sierra de Aroa, north Caribbean coast, Venezuela
Fig. 1. A: The Aroa River basin. The Yurubí National Park (YNP) is indicated by the shaded polygon. B: each circle indicates one or more sample localities. The white circles denoted tributaries in group 1 (G1) and black circles are tributaries in group 2 (G2).
Fig. 5. Relationships between the PCA 1 and CCA 1 in Integrity of fluvial fish communities is subject to environmental gradients in mountain streams, Sierra de Aroa, north Caribbean coast, Venezuela
Fig. 5. Relationships between the PCA 1 and CCA 1 axes with the species richness and rivers stations. The richness (A) was moderately explained, but the multivariate (B) and canonical (C) analyses showed functional relationships with the geographical location of the rivers.
Fig. 4 in Riffle and pool fish communities in a large stream of southeastern Brazil
Fig. 4. Multidimensional scaling plot of Hypostomus hermani abundance in the riffle reach showing its predominance (shown by circle size) during the high-waters. Each symbol represents a month.
Fig. 3 in Riffle and pool fish communities in a large stream of southeastern Brazil
Fig. 3. Multidimensional scaling plot based on species abundance data in the riffle (a) and pool reaches (b) according to low and high-waters level. Each symbol represents a month.
Fig. 1 in Riffle and pool fish communities in a large stream of southeastern Brazil
Fig. 1. Model of species abundance for each mesohabitat studied in the ribeirão Santa Bárbara, southeastern Brazil.
Fig. 2 in Food resource partitioning in a fish community of the central Amazon floodplain
Fig. 2. Relative importance of food categories in supporting the community's biomass of fish species inhabiting a floodplain lake (lago do Rei) in Central Amazonia in the two seasons.
Fig. 3 in Food resource partitioning in a fish community of the central Amazon floodplain
Fig. 3. Distribution of overlaps values between diets of fish species inhabiting a floodplain lake (lago do Rei) in Central Amazonia. a: whole community all seasons (74 species); b: generalist species all seasons (27 species); and c: seasonal differences (23 species).
Palaeontological evidence for community-level decrease in mesopelagic fish size during Pleistocene climate warming in the eastern Mediterranean
<p><span>Mesopelagic fishes are an important element of marine food webs, a huge, still mostly untapped food resource, and great contributors to the biological carbon pump, whose future under climate change scenarios is unknown. The shrinking of commercial fishes within decades has been an alarming observation, but its causes remain contended. Here, we investigate the effect of warming climate on mesopelagic fish size in the eastern Mediterranean Sea during a glacial-interglacial-glacial transition of the Middle Pleistocene (marine isotope stages 20–18; 814–712 </span><span> </span><span>Kyr B.P.), which included a 4ºC increase of global seawater temperature. Our results based on fossil otoliths show that the median size of lanternfishes, one of the most abundant groups of mesopelagic fishes in fossil and modern assemblages, declined by ~35% with climate warming at the community level. However, individual mesopelagic species showed different and often opposing trends in size across the studied time interval, suggesting that climate warming in the interglacial resulted in an ecological shift toward increased relative abundance of smaller-sized mesopelagic fishes due to geographic and/or bathymetric distribution range shifts, and the size-dependent effects of warming. </span></p>
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Allen Brain Atlas
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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