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971 results for “Southwestern Atlantic”
Figures 1-5 from: Martins L, Tavares M (2018) Ypsilothuria bitentaculata bitentaculata (Echinodermata: Holothuroidea) from the southwestern Atlantic, with comments on its morphology. Zoologia 35: 1-6. https://doi.org/10.3897/zoologia.35.e24573
Figures 1-5 Ypsilothuria bitentaculata bitentaculata (MZUSP 1306): (1) lateral view of the body; (2) detail of one of the two elongated lateral tentacles detail of the tentacle (white arrow); (3) dorsal view of a specimen preserved in ethanol (note oral and anal siphons, white and red arrows, respectively); (4) detail of the ossicles from the body wall (the red arrow indicates the spire); (5) calcareous ring. R, radial plate. IR, interradial plate. Scale bars: 1–3 = 5 mm, 4 = 1 mm, 5 = 0.5 mm.
Figures 6-16 from: Martins L, Tavares M (2018) Ypsilothuria bitentaculata bitentaculata (Echinodermata: Holothuroidea) from the southwestern Atlantic, with comments on its morphology. Zoologia 35: 1-6. https://doi.org/10.3897/zoologia.35.e24573
Figures 6-16 SEM photomicrographs of the ossicles from Ypsilothuria bitentaculata bitentaculata (MZUSP 1306). (6–7) tables from body wall in dorsal and lateral views, respectively; (8) detail of the spire; (9) rod from tentacles; (10–11) knobbed plates from introvert (12–14); arched rods from anal and oral siphon. (15–16) plates from oral and anal siphons, respectively. Scale bars: 6 = 500 μm, 7–8 = 200 μm, 9–11 = 50 μm, 12–16 = 20 μm.
Figures 17-19 from: Martins L, Tavares M (2018) Ypsilothuria bitentaculata bitentaculata (Echinodermata: Holothuroidea) from the southwestern Atlantic, with comments on its morphology. Zoologia 35: 1-6. https://doi.org/10.3897/zoologia.35.e24573
Figures 17-19 Outlines of the calcareous rings: (17) Ypsilothuria bitentaculata attenuata (after Heding, 1942); (18) Ypsilothuria bitentaculata bitentaculata (MZUSP 1306); (19) Ypsilothuria bitentaculata virginiensis (after Heding, 1942). Note in 18 radials and interradials narrow and the anterior end of both radials and interradials deeply notched. R, radial plate. IR, interradial plate.
Figure 3 from: de Oliveira Dias C, de Araujo AV, Bonecker SLC (2018) Vertical distribution and structure of copepod (Arthropoda: Copepoda) assemblages in two different seasons down to 1,200 m in the tropical Southwestern Atlantic. Zoologia 35: 1-11. https://doi.org/10.3897/zoologia.35.e13886
Figure 3 Vertical distribution of the mean and standard deviation of the copepod density (log ind.m-³) during two sampling periods: rainy season, RS; dry season, DS.
Figure 5 from: de Oliveira Dias C, de Araujo AV, Bonecker SLC (2018) Vertical distribution and structure of copepod (Arthropoda: Copepoda) assemblages in two different seasons down to 1,200 m in the tropical Southwestern Atlantic. Zoologia 35: 1-11. https://doi.org/10.3897/zoologia.35.e13886
Figure 5 DbRDA ordination derived from DistLM analysis, including the main environmental parameters explaining the variability in copepod assemblage structures during the sampling period. Temp, temperature; Sal, salinity. Black triangle, rainy season 1 m; open triangle, dry season 1 m; black circle, rainy season 250 m; open circle, dry season 250 m; black square, rainy season 800 m; open square, dry season 800 m; black polygon, rainy season 1,200 m; open polygon, dry season 1,200 m.
Figure 1 from: de Oliveira Dias C, de Araujo AV, Bonecker SLC (2018) Vertical distribution and structure of copepod (Arthropoda: Copepoda) assemblages in two different seasons down to 1,200 m in the tropical Southwestern Atlantic. Zoologia 35: 1-11. https://doi.org/10.3897/zoologia.35.e13886
Figure 1 Salinity and temperature of the five water masses (0–3260 m) in the Campos Basin, central Brazilian coast, modified from Bonecker et al. (2014). Solid line = temperature; dashed line = salinity; SS, Subsurface Water; SACW, South Atlantic Central Water; AAIW, Antarctic Intermediate Water; UCDW, Upper Circumpolar Deep Water; NADW, North Atlantic Deep Water.
Figure 4 from: de Oliveira Dias C, de Araujo AV, Bonecker SLC (2018) Vertical distribution and structure of copepod (Arthropoda: Copepoda) assemblages in two different seasons down to 1,200 m in the tropical Southwestern Atlantic. Zoologia 35: 1-11. https://doi.org/10.3897/zoologia.35.e13886
Figure 4 Vertical distribution of the mean diversity, species richness, and evenness of total copepods in the Campos Basin: dark blue bars, diversity; cobalt bars, richness; cyan bar, evenness. RS, rainy season; DS, dry season.
Supplementary material 2 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
The Modified Royce Method (Juanicó 1978) :
Supplementary material 1 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Details of the material analyzed :
Figures 3-4 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figures 3-4 Box-Whisker plots of standardized values of attributes for the soft body parts of Doryteuthissanpaulensis females (3) and males (4) from each region surveyed. Blue triangles represent mean values. FL: fin length, FW: fin width GL: gill length, RW: raquis width, GW: gladius width, LBRL: lower beak rostral length. RJ: Rio de Janeiro, SP: São Paulo, SC: Santa Catarina, RS: Rio Grande do Sul, Uy: Uruguay, MP: Mar del Plata.
Figure 8 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figure 8 Size structure of Doryteuthissanpaulensis according to the subareas nested within the Uruguayan-Argentinean coast (33.7–38.2°S).
Figure 5 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figure 5 Heatmaps depicting the morphological overlap (Ω̄) among geographic areas in Doryteuthissanpaulensis. RJ: Rio de Janeiro, SP: São Paulo, SC: Santa Catarina, RS: Rio Grande do Sul, Uy: Uruguay, MP: Mar del Plata.
Figure 2 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figure 2 Maps of FAUNEC surveys from where squid where obtained. Abundance data were log-transformed for better visualization. Latitudes and longitudes are decimal transformed. The 200 m isobath is showed (dashed line).
Figure 11 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figure 11 Total number and catch rates of Doryteuthissanpaulensis and D.pleii collected in different depths and time of day during FAUNEC surveys and within the shared area off southern Brazil. Both metrics were calculated for stations where at least one of the two species was present (FAUNEC surveys) or where both species were present (shared area). Bars: number of squid. Circles: squid per haul. Crosshatched bars and empty circles: D.sanpaulensis. Black bars and dark grey circles: D.pleii.
Figure 7 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figure 7 Size structure of Doryteuthissanpaulensis according to the subareas nested within the Rio Grande do Sul coast (29–33.7°S). Note de different y-axis.
Figure 6 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figure 6 Size structure of Doryteuthissanpaulensis according to the subareas nested within the SBB (22–29°S). Note de different y-axis.
Figure 14 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figure 14 Stomach fullness frequency of Doryteuthispleii collected during FAUNEC surveys per period of the day. Black bars: empty stomachs, grey bars: 50% full stomachs, white bars: 100% or distended stomachs.
Figure 1 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figure 1 Study area, showing the areas and sites from where squid samples were obtained, also including the subareas used for the geographic differentiation in Doryteuthissanpaulensis and D.pleii plus the shared area of co-occurrence of both species. The relative position of the study area on the South American Atlantic coast is boxed. RJ: Rio de Janeiro, SP: São Paulo, SC: Santa Catarina, RS: Rio Grande do Sul, Uy: Uruguay, MP: Mar del Plata. Subarea A: Cabo Frio (23°S) – Paranaguá (26°S), Subarea B: Paranaguá (26°S) – Santa Catarina Island (28°S). Latitudes and longitudes are decimal transformed. The 200 m isobath is showed (dashed line).
Figure 12 from: Martins RS, Juanicó M (2018) Biology, distribution and geographic variation of loliginid squids (Mollusca: Cephalopoda) off southwestern Atlantic. Zoologia 35: 1-16. https://doi.org/10.3897/zoologia.35.e23176
Figure 12 Total number and catch rates of Doryteuthissanpaulensis and D.pleii collected in different temperatures and salinities during FAUNEC surveys off southern Brazil. Both metrics were calculated for stations where at least one of the two species was present. Bars: number of squid. Circles: squid per haul. Crosshatched bars and empty circles: D.sanpaulensis. Black bars and dark grey circles: D.pleii.
FIGURE 1. Location map. Dashed lines show the 200 m in Gastropods from the Burdwood Bank (southwestern Atlantic): an overview of species diversity
FIGURE 1. Location map. Dashed lines show the 200 m isobaths.
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OpenNeuro
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