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Fig. 6 in Iheringichthys labrosus (Siluriformes: Pimelodidae) in the Piquiri River, Paraná, Brazil: population structure and some aspects of its reproductive biology

Fig. 6. Bimonthly variation of the mean values of the fullness index (FI) of females (a) and males (b) of Iheringichthys labrosus in the Piquiri River from November 2002 to September 2003. (SD = Standard deviation).

Fig. 3 in Reproductive biology of the peacock bass Cichla piquiti (Perciformes: Cichlidae), an exotic species in a Neotropical reservoir

Fig. 3. Mean values ± SD of the gonadosomatic (GSI), hepatosomatic (HSI), stomach repletion (SRI) and condition factor (K) indexes according to gonadal maturation stages of males (a) and females (b) of Cichla piquiti sampled during the period from December 2004 to November 2005 [resting (dotted), initial maturation (oblique lines), advanced maturation (vertical lines), partially spent (horizontal lines)]. Values followed by different letters above the bars of each index are significantly different (one-way ANOVA, p <0.05).

Fig. 4 in Iheringichthys labrosus (Siluriformes: Pimelodidae) in the Piquiri River, Paraná, Brazil: population structure and some aspects of its reproductive biology

Fig. 4. Length/weight relationship for females (a), males (b) and for both sexes (c) of Iheringichthys labrosus, obtained between November 2002 and September 2003 in the Piquiri River.

Fig. 3 in Iheringichthys labrosus (Siluriformes: Pimelodidae) in the Piquiri River, Paraná, Brazil: population structure and some aspects of its reproductive biology

Fig. 3. Length distribution of Iheringichthys labrosus captured in the Piquiri River from November 2002 to September 2003.

Fig. 2 in Iheringichthys labrosus (Siluriformes: Pimelodidae) in the Piquiri River, Paraná, Brazil: population structure and some aspects of its reproductive biology

Fig. 2. Catch per unit of effort, in number and biomass (number of individuals and kg/1000 m2 of net for 24 hours) of Iheringichthys labrosus, obtained at the sampling sites (a - number of individuals, b - biomass); shifts (c - number of individuals, d - biomass) and months (e - number of individuals, f - biomass) in the Piquiri River from November 2002 to September 2003.

Fig. 1 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil

Fig. 1. Monthly variation of mean gonadosomatic index (GSI) for Brachyhypopomus draco males (above) and females (below) from September 2003 to August 2004. Vertical bars represent the standard deviation and the values between the brackets are the sample size.

Fig. 7 in Iheringichthys labrosus (Siluriformes: Pimelodidae) in the Piquiri River, Paraná, Brazil: population structure and some aspects of its reproductive biology

Fig. 7. Frequency of the gonadal development stage of Iheringichthys labrosus captured in the Piquiri River from November 2002 to September 2003.

Fig. 4 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil

Fig. 4. Monthly variation of light photoperiod (min) (above); water temperature (ºC), depth (cm) and oxygen saturation (%) (middle); conductivity (µS/cm) and rainfall (mm) (below). Values in lagoa Verde from September 2003 to August 2004.

Fig. 6 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil

Fig. 6. Relative frequency distribution of Brachyhypopomus draco males (n = 175) and females (n = 175) for total length classes sampled from September 2003 to August 2004.

Fig. 5 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil

Fig. 5. Distribution of relative frequency of 150 oocyte diameters of 10 Brachyhypopomus draco females with highest GSI values sampled from September 2003 to August 2004. Vertical bars represent the standard deviation.

Fig. 4 in Reproductive biology of the peacock bass Cichla piquiti (Perciformes: Cichlidae), an exotic species in a Neotropical reservoir

Fig. 4. Percentage of sexually mature males (solid bar) and females (empty bar) of Cichla piquiti collected during the period from December 2004 to November 2005. Sample size is given above bars.

Fig. 2 in Reproductive biology of the peacock bass Cichla piquiti (Perciformes: Cichlidae), an exotic species in a Neotropical reservoir

Fig. 2. Male and female gonadosomatic index (GSI) ± SD of Cichla piquiti and environmental variables ± SD collected at the Itumbiara Reservoir between December 2004 and November 2005 [GSI male (square), GSI female (triangle); (a) water temperature, (b) accumulated rainfall, (c) reservoir level].

Fig. 7 in Reproductive biology of the Neotropical electric fish Brachyhypopomus draco (Teleostei: Hypopomidae) from southern Brazil

Fig. 7. Relative frequency distribution of caudal filament depth levels for Brachyhypopomus draco males. Caudal filaments depth Level 1 = from 0 to 1.5%; Level 2 = from 1.51% to 2.5%; Level 3 = from 2.51% to 3.50%.

Fig. 7 in Biology of Isopisthus parvipinnis: an abundant sciaenid species captured bycatch during sea-bob shrimp fishery in Brazil

Fig. 7. Length/weight relationships of the species Isopisthus parvipinnis (n = 990) in Ilhéus, Bahia.

Fig. 6 in Biology of Isopisthus parvipinnis: an abundant sciaenid species captured bycatch during sea-bob shrimp fishery in Brazil

Fig. 6. Estimated length of first maturation (L ) of Isopisthus parvipinnis (n = 990) in Ilhéus, Bahia, Brazil.

Fig. 5 in Biology of Isopisthus parvipinnis: an abundant sciaenid species captured bycatch during sea-bob shrimp fishery in Brazil

Fig. 5. Average length of Isopisthus parvipinnis and confidence interval of 95% (n = 990) across seasons of those individuals captured along the coast of Ilhéus, Bahia, Brazil.

Fig. 4 in Biology of Isopisthus parvipinnis: an abundant sciaenid species captured bycatch during sea-bob shrimp fishery in Brazil

Fig. 4. Number of Isopisthus parvipinnis individuals (n = 990) per length category across those captured along the coast of Ilhéus, Bahia, Brazil.

Fig. 2 in Biology of Isopisthus parvipinnis: an abundant sciaenid species captured bycatch during sea-bob shrimp fishery in Brazil

Fig. 2. Adjusted average of number of Isopisthus parvipinnis individuals captured over the seasons on coast of Ilhéus, Bahia, Brazil.

Fig. 3 in Biology of Isopisthus parvipinnis: an abundant sciaenid species captured bycatch during sea-bob shrimp fishery in Brazil

Fig. 3. Total number of Isopisthus parvipinnis individuals captured per sampling month along the coast of Ilhéus, Bahia, Brazil.

Fig. 1 in Biology of Isopisthus parvipinnis: an abundant sciaenid species captured bycatch during sea-bob shrimp fishery in Brazil

Fig. 1. Map of the studied area (Ilhéus city, Bahia State, Brazil) indicating the sample sites (x) and the isobaths (dashed lines).