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Figure 66 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 66: Recording weight, measuring total length and taking a standard photograph in the field lab.
Figure 50 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 50: Generalist forms of Salvelinus umbla in lakes with only a single known surviving form. Two genetically distinct clusters of S. umbla occur in Lake Zurich. The pictured fish was caught by Projet Lac in Upper Lake Zurich and is genetically and phenotypically similar to the generalist form from Lake Walen. On the other hand, Salvelinus analyzed from Lower Lake Zurich (none caught in Projet Lac) tend to be genetically and phenotypically more similar to S. umbla from Lake Zug (Carmela Doenz, personal communication).
Figure 53 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 53: Littoral (left) and profundal (right) Cottus were phenotypically distinct in lakes Thun (shown in photos), Walen and Lucerne in the Rhine catchment and lakes Garda and Maggiore in the Po catchment.
Figure 58 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 58: Salaria in Lake Geneva were phenotypically and genetically distinct from those in the southern perialpine lakes. Males of the populations of the southern perialpine lakes, such as Lake Maggiore, have blue cephalic pores on the lower part of the cheek, while those from Lake Geneva (and Annecy) lack the blue iridescence of these pores.
Figure 49 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 49: Diversity of Salvelinus in Swiss lakes with more than one surviving form (based on current scientific knowledge). Forms that were caught during Projet Lac are indicated by *. The generalist form is treated as S. umbla in this report and the specialized forms as distinct taxa. Additional photos of the forms during the breeding season are shown where available (individuals with more orange belly). Horizontal white bar indicates 5 cm. Photos by Projet Lac, Carmela Doenz and local fishermen.
Figure 72 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 72: Composition of fish catches among lakes in benthic habitats according to benthic CEN gillnets.
Figure 47 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 47: Weak genetic differences among phenotypically assigned trout populations in Lake Poschiavo. Discriminant Analysis of Principal Components based on several thousand Single Nucleodide Polymorphisms.
Figure 46 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 46: RAxML phylogeny tree depicting the genetic relationship among individual trouts from Lakes Sils and Poschiavo and reference populations of the five species S. trutta, S. marmorata, S. labrax, S. cenerinus and S. carpio based on several thousand Single Nucleodide Polymorphisms. Note that phenotypic S. trutta from Poschiavo are genetically close to S. trutta from reference populations in the Rhine, whereas phenotypic marmorata, cenerinus and "blackspot" from Poschiavo are genetically intermediate between nonintrogressed S. trutta, S. marmorata and S. cenerinus references.
Figure 42 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 42: Barbatula species identified using genetic barcoding. Note that the scale differs among the photos.
Figure 67 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 67: Standard photos (left) were taken of almost all sampled fish, while cuvette photos (right) were taken of fish of small, benthic fish and fish of particular interest in some lakes.
Figure 44 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 44: Lake Thun contains a diverse assemblage of Coregonus species, with all except Albock having evolved from common ancestors within the lake. Albock contains genetic material from fish introduced from Lake Constance in the 1930s and might be a hybrid species. Brienzlig, Felchen and Balchen also occur in Lake Brienz. Steinmann's Balchen appears tob e restricted to Lake Thun, but a phenotypically similar species occurs in Lake Brienz that may have an independent origin. Gill raker numbers are the average values for the populations of Lake Thun. The number of gill rakers reflects the diet of the species: species with many gill rakers are more efficient at feeding on zooplankton, while species with few and coarser rakers are better at feeding on larger prey, such as larger invertebrates that they obtain by sifting sediment from the lake floor. Local fishermen and previous reports [48, 163] describe a late-winter (February/March) spawning form of C. albellus, however it's status remains unknown. Most information taken from [24, 42]. Gill raker numbers and photos from Oliver Selz.
Figure 39 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 39: Alburnus from lakes Brienz and Lugano. The two individuals top left and middle left were caught in Lake Brienz and represent the form of Alburnus alburnus with elongated head and long snout, the fish top right and middle right are also from Brienz and are representative of the blunt-snouted form resembling Alburnus alburnus from other lakes. Bottom left: Alburnus arborella from Lake Lugano. This fish corresponds meristically to A. maxima. Bottom right: unidentified Alburnus from Lake Lugano. This fish does not correspond meristically to A. maxima, nor to A. arborella.
Figure 38 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 38: Examples of Scardinius spp caught in Projet Lac. Upper panel are northern S. erythrophthalmus caught in their native lakes. Upper middle panel are southern S. hesperidicus from their native southern perialpine lakes. Lower middle panel are S. hesperidicus from northern perialpine lakes. Bottom panel are a phenotypic hybrid from Chalain and a backcross hybrid from Zurich, i.e. a phenotypic S. erythrophthalmus that carried S. hesperidicus mitochondrial DNA.
Figure 51 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 51: Genetic traces of stock transfer of Salvelinus spp among investigated Swiss and Austrian lakes detected using genetic methods (Doenz, Seehausen et al, in prep [25]). These traces indicate that when stocks were introduced to lakes that had native char, the introduced char populations hybridized with the native populations.
Figure 41 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 41: All Cobitis caught in Projet Lac in lakes north and south of the Alps resembled Cobitis bilineata, except one fish from Lake Biel that was phenotypically distinct from C. bilineata and also from C. taenia (fishec number 168747). Photo of C. taenia from the Yonne river (Seine, France) is provided for comparison (photo from Guy Periat).
Figure 37 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 37: Population structure of nase in Switzerland as inferred from microsatellite data. a) Individual population assign-
Figure 37 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 37: Population structure of nase in Switzerland as inferred from microsatellite data. a) Individual population assign- ments estimated by STRUCTURE for K = 2. PCA based on population allele frequencies: b) with all populations included; c) P. toxostoma excluded. Populations Li, Wi, Mu, Bi, Su, Ro, Se and Do are from various Swiss river stations within Thur, Limmat, Reuss, Aare and Rhine downstream of Lake Constance. Ri is the Alpine Rhine, Da an Austrian inlet to Lake Constance, and Na is a Danubian population. The populations in tributaries to Lake Constance (Ri, Da) belong to the Danubian lineage, whereas all other Swiss populations belong to the Rhine lineage (from [143]).
Figure 36 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 36: Diversity of nose carps (Chondrostoma) in periapline systems. Top left: C. nasus Atlantic lineage (Wiese, Basel). Bottom left: C. nasus Atlantic lineage (Lake Sarnen, Projet Lac). Top right: C. nasus Danubian lineage (Alpine Rhine, Lake Constance inlet). Bottom right: C. soetta (Lake Mezzola, Projet Lac).
Figure 71 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 71: Species composition in the littoral zone by shallow-set vertical nets. Composition of fish catches among lakes in the littoral zone according to shallow-set (<3 m) vertical gillnets (excluding streams and rivers). Note that the high abundance of Barbatula barbatula in Lower Constance was caused by one action with 36 fish. The high biomass of Barbus barbus in Thun and Lower Constance was caused by eight and one fish respectively. The high biomass of Squalius cephalus was also caused by one fish in Joux and three fish in Walen.
Figure 35 in Diversity, distribution and community composition of fish in perialpine lakes – "Projet Lac" synthesis report
Figure 35: Rutilus rutilus population genomic structure across northern perialpine lakes and phenotypic structure within Lake Brienz. Top left: Principal component analysis based on 3,865 polymorphic Single Nucleodide Polymorphisms: black = Lake Brienz, orange = Lake Walen, red = Lake Hallwill, green = Lake Geneva, blue = Lake Neuchatel. Top right: RAxML phylogeny tree depicting the genetic relationship among the individuals from the five lakes. Bottom left: Morphological (Mahalanobis) distances between roach caught over different substrates within Lake Brienz [145]. Bottom right: representative individuals from the five lakes.
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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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