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603 results for “fisheries”
Figure 8 in Catch composition of trawl fisheries in Mersin Bay with emphasis on catch biodiversity
Figure 8. Cluster analysis based on CPUE (N/h) and the distance (Bray–Curtis, UPGMA) of the catch during the fishing months.
Figure 1. – A in Potentially unsustainable fisheries of a critically-endangered pelagic shark species: the case of the blue shark (Prionace glauca) in the Western Mediterranean Sea
Figure 1. – A: Artisanal pelagic longliner from Torredembarra (Catalonia), Sep. 2012. B: Industrial pelagic longliner from Carboneras (Andalusia), Nov. 2014.
FIGURE 3 in Diversity of Loricariidae (Actinopterygii: Siluriformes) assemblages in two Conservation Areas of the Middle Xingu River, Brazilian Amazon, and their suitability for sustainable ornamental fisheries
FIGURE 3 | Principal component analysis (PCA) for composition of ornamental fish species based on the method of capture (Hellinger transformation), considering the two extractive reserves.
FIGURE 4 in Diversity of Loricariidae (Actinopterygii: Siluriformes) assemblages in two Conservation Areas of the Middle Xingu River, Brazilian Amazon, and their suitability for sustainable ornamental fisheries
FIGURE 4 | Principal Component Analysis (PCA) of fish composition in the drainages of both the Xingu and Iriri River RESEXes (Hellinger transformation). Only species names that made greatest contributions to compositional differences are shown.
FIGURE 2 in Diversity of Loricariidae (Actinopterygii: Siluriformes) assemblages in two Conservation Areas of the Middle Xingu River, Brazilian Amazon, and their suitability for sustainable ornamental fisheries
FIGURE 2 | Venn diagram showing the compositions of the Loricariidae species found in both extractive reserves.
FIGURE 3 in The most important fishery resource in the Amazon, the migratory catfish Brachyplatystoma vaillantii (Siluriformes: Pimelodidae), is composed by an unique and genetically diverse population in the Solimões-Amazonas River System
FIGURE 3 | Analysis of the BAPS 6.0 program showing three clusters (green, red, and blue) distributed between the five sampled locations of Brachyplatystoma vaillantii.
FIGURE 2 in The most important fishery resource in the Amazon, the migratory catfish Brachyplatystoma vaillantii (Siluriformes: Pimelodidae), is composed by an unique and genetically diverse population in the Solimões-Amazonas River System
FIGURE 2 | Network of Brachyplatystoma vaillantii haplotypes. The number shown within a circle identifies the number of specimens sharing those haplotypes; circles without numbers represent unique haplotypes. White circles represent hypothetical intermediate haplotypes. Each locality is represented by the same colors in Fig. 1: red – Tabatinga, orange – Tefé, green – Manaus, purple – Santarém and blue – Estuary.
FIGURE 1 in The most important fishery resource in the Amazon, the migratory catfish Brachyplatystoma vaillantii (Siluriformes: Pimelodidae), is composed by an unique and genetically diverse population in the Solimões-Amazonas River System
FIGURE 1 | Sampling sites for Brachyplatystoma vaillantii along the Solimões-Amazonas River axis. The localities were grouped in five fishing landing towns as follow: Red circles: Tabatinga (1 – Benjamin Constant, 2 – Tabatinga), Orange circles: Tefé (3 – Mucura Lake, 4 – Tefé, 5 – Vila Nova), Green circles: Manaus (6 – Manaus, 7 – Careiro da Várzea), Purple circles: Santarém (8 – Santarém, 9 – Tapará) and Blues circles: Estuary (10 – Almeirim, 11 – Gurupá, 12 – Breves, 13 – Belém, 14 – Salvaterra).
FIGURE 4 in The most important fishery resource in the Amazon, the migratory catfish Brachyplatystoma vaillantii (Siluriformes: Pimelodidae), is composed by an unique and genetically diverse population in the Solimões-Amazonas River System
FIGURE 4 | Analysis of the FASTBAPS program. Numbers are individual sequence of Brachyplatystoma vaillantii. Colors ranging from red for the lowest probabilities and clear yellow for the highest probabilities support for bootstrap.
FIGURE 2 in Urban market amplifies strong species selectivity in Amazonian artisanal fisheries
FIGURE 2 | The most important 20 fish species by total biomass caught, in descending order, split by season. These species represent 90% of the total biomass caught.
FIGURE 5 in Urban market amplifies strong species selectivity in Amazonian artisanal fisheries
FIGURE 5 | Fish species diversity caught by rural artisanal fishers on the Rio Purus. Fishing catches to be sold were less diverse than those to be consumed. Trips were classified based on whether the stated intention by the fisher was to sell, for household consumption or both. The Shannon's diversity index, calculated per fishing trip, is shown.
FIGURE 4 in Urban market amplifies strong species selectivity in Amazonian artisanal fisheries
FIGURE 4 | Fish species rank curve (by percentage biomass), during the (A) high-water and (B) low-water seasons. (A) Mylossoma albiscopum and Colossoma macropomum dominate high water catches, both for sale only (red) and for both sale and consumption (black). These species are also both important in catches for consumption only (green), but Pimelodus blochii is the most important species in this category. (B) Arapaima gigas dominates low-water season commercial fish catches (red), Osteoglossum bicirrhosum in catches for both consumption and sale (black), and Mylossoma albiscopum (=M. duriventre) and Triportheus angulatus in catches for consumption only.
FIGURE 3 in Urban market amplifies strong species selectivity in Amazonian artisanal fisheries
FIGURE 3 | Fish assemblages vary markedly by (A) hydrological season and (B) geographical remoteness, shown by NMDS (Non-metric Multidimensional Scaling) graphs. Based on similarity analysis of seasonal fish assemblages. Less-remote communities are those <600 km fluvial travel distance from Manaus, which receive visits by Manaus-based boats that purchase fish and deposit ice at least weekly, while more-remote communities are those> 600 km fluvial travel distance from Manaus that do not.
FIGURE 7 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 7 | Trends in abundance of the main 19 fish species in the survey of fish populations of EBIPES project. Ellipses represent the confidence intervals built with the maximum likelihood profile of the estimation of the instantaneous population growth rate (r). Vertical white lines within each ellipse represent the point estimate of r for each species. The dashed line at the center of the chart indicates the position of the zero value for r. Numbers on the right side of the chart are the total number of individuals caught for each species.
FIGURE 6 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 6 | Trends in abundance of the main 19 fish species in the survey of fish populations of Corrientes Province. Ellipses represent the confidence intervals built with the maximum likelihood profile of the estimation of the instantaneous population growth rate (r). Vertical white lines within each ellipse represent the point estimate of r for each species. The dashed line at the center of the chart indicates the position of the zero value for r. Numbers on the right side of the chart are the total number of individuals caught for each species.
FIGURE 3 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 3 | Trends in annual freshwater fish exports of Argentina of 10 taxa between 1994 and 2019. Symbols represent the slopes of the linear regressions between the annual exports and year. Red symbols indicate slopes with significant negative values, green symbols indicate slopes with significant positive values and grey symbols indicate slopes non significantly different from zero. Whiskers around each symbol indicate 95% confidence intervals generated by the bootstrap method.
FIGURE 5 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 5 | Trends in abundance of the landings of the main 12 fish species in the commercial fishery monitoring of Santa Fe Province. Ellipses represent the confidence intervals built with the maximum likelihood profile of the estimation of the instantaneous population growth rate (r). Vertical white lines within each ellipse represent the point estimate of r for each species. The dashed line at the center of the chart indicates the position of the zero value for r. Numbers on the right side of the chart are the total number of individuals caught for each species.
FIGURE 4 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 4 | Trends in abundance of the landings of the main 19 fish species in the commercial fishery monitoring of Chaco Province at Puerto Antequera. Ellipses represent the confidence intervals built with the maximum likelihood profile of the estimation of the instantaneous population growth rate (r). Vertical white lines within each ellipse represent the point estimate of r for each species. Black ellipses are population trends for drift gillnet landings and grey ellipses are population trends for longline landings. The dashed line at the center of the chart indicates the position of the zero value for r. Numbers on the right side of the chart are the total number of individuals caught using gillnets or longlines for each species.
FIGURE 1 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 1 | A. Map of the southern region of La Plata basin showing the location of landing sites where information was collected for historical statistics of the fishery production of Argentina between 1934 and 1986. The landing sites of each river are indicated by colors; Violet: Uruguay River; Blue: Río de la Plata; Light green: Lower Paraná River; Dark green: Middle Paraná River; Red: Higher Paraná; Maroon: Paraguay; Pink: Bermejo River. B. Map of the southern section of Paraná River, showing landing sites and sampling localities of recent commercial fishery monitoring programs and surveys of fish populations, respectively. Filled blue circles indicate landing sites of commercial fishery monitoring of Santa Fe; the violet filled circle indicate the landing site of recente commercial fishery monitoring of Chaco; green empty circles indicate sampling sites of EBIPES survey of fish populations, and red empty circles indicate sampling sites of Corrientes survey of fish populations. The middle Paraná River floodplain and delta is shaded in bright green. Ar: Argentina; Br: Brazil; Py: Paraguay; Uy: Uruguay.
FIGURE 2 in Long-term trends of fishery landings and target fish populations in the lower La Plata basin
FIGURE 2 | Trends in annual landings of 20 freshwater fish taxa in the historical fishery production of Argentina (1934–1986) for all rivers of the La Plata basin and separately for each one of the rivers. Symbols represent the slopes of the linear regressions between the annual landings and year. Red symbols indicate slopes with significant negative values, green symbols indicate slopes with significant positive values and grey symbols indicate slopes not significantly different from zero. Whiskers around each symbol indicate 95% confidence intervals generated by bootstrap method.
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