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Fig. 2 in Intraspecific food resource partitioning in Brazilian silverside Atherinella brasiliensis (Atheriniformes: Atherinopsidae) in a tropical estuary, Brazil

Fig. 2. Box-plot of spatial and temporal variation of number of individuals (CPUE average ±SE) and Biomass (±SE) of A. brasiliensis collected Mamanguape river estuary in Brazil. Bold lines indicate medians, hinges indicate the 25th and 75th percentiles, whiskers indicate the largest and smallest observation within a distance of 1.5 the box size. White bar= Wet season and Dark Gray bar= Dry season.

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Fig. 5 in Intraspecific food resource partitioning in Brazilian silverside Atherinella brasiliensis (Atheriniformes: Atherinopsidae) in a tropical estuary, Brazil

Fig. 5. Principal coordinate analysis ordination (PCO) coded by habitat (a) and size classes (b) for Atherinella brasiliensis in the Mamanguape River estuary, Brazil. Symbols Habitat: Mud flat (Full Black Triangle); Tidal Creek 1 (Gray Square); Tidal Creek 2 (Black Circle); Symbols size classes: Small juveniles (Open Black Square); Juveniles (Light Gray Circle) and Adults (Dark Gray Circle).

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Fig. 7 in Intraspecific food resource partitioning in Brazilian silverside Atherinella brasiliensis (Atheriniformes: Atherinopsidae) in a tropical estuary, Brazil

Fig. 7. Feeding strategy for Atherinella brasiliensis in Mamanguape river estuary: A= Mudflat; B= Tidal Creek 1 and C= Tidal Creek 2. Food items: Cyc, Cyclopoida; Cal, Calanoida; Dec, Decapoda; Decl, Decapoda larvae; Hym, Hymnoptera; Egf, Fish eggs; Cer, Ceratopogonidae larvae; Ost, Ostracoda; Gas, Gastropoda; Pol, Polychaeta; Esc, Scale. (TL1= small juveniles; TL2= juveniles and TL3= adult).

Fig. 7 in Description of a new species of Phenacostethus (Atheriniformes: Phallostethidae) endemic to Kalimantan Selatan, Indonesian Borneo, reveals deep mtCOI divergence among miniature species

Fig. 7. Two stream habitats in Kalimantan Selatan sampled in 2007: A, Type locality of Phenacostethus sikat, the Jorong River at 20.7 m above sea level (3°58.794 S, 114°56.375 E). B, Sampanahan River at Sampanahan Hulu at 7 m above sea level (2°37.745 S, 116°11.170 E).

Fig. 6 in Description of a new species of Phenacostethus (Atheriniformes: Phallostethidae) endemic to Kalimantan Selatan, Indonesian Borneo, reveals deep mtCOI divergence among miniature species

Fig. 6. Collection localities of freshwater and coastal fishes from Kalimantan that included specimens of the genus Phenacostethus. TGK01/ TGK32 and TGK02, localities of Phenacostethus sikat. The holotype was collected at TGK01. TGK18 is the locality of Phenacostethus sp. 1, represented by one specimen (USNM 443825) distantly separated from Phe. sikat in mt COI data (see Table 4 and Discussion). Blue dots represent other localities sampled in August 2007 which included no phallostethid specimens. Yellow lines are roads. Base map from Microsoft Encarta Interactive World Atlas 2001.

Fig. 4 in Description of a new species of Phenacostethus (Atheriniformes: Phallostethidae) endemic to Kalimantan Selatan, Indonesian Borneo, reveals deep mtCOI divergence among miniature species

Fig. 4. Anterior portion of the body of specimens from which the caudal portion was removed in the field. DNA was extracted from the caudal portion for mtCOI (barcode) analysis. Above, Phenacostethus sikat, USNM 443826; below, Phenacostethus sp. 1, USNM 443825. Bars = 1 mm.

Fig. 3 in Description of a new species of Phenacostethus (Atheriniformes: Phallostethidae) endemic to Kalimantan Selatan, Indonesian Borneo, reveals deep mtCOI divergence among miniature species

Fig. 3. Phenacostethus sikat, holotype, MZB 25501, male, 13.4 mm SL. A, lateral view of head and priapium; B, ventral view of head and priapium; C, lateral view of priapium focused on brush—like seminal papilla. Phenacostethus smithi, USNM 329582, male, 16.1 mm SL. D, lateral view of head and priapium; E, ventral view of head and priapium; F, lateral view of priapium focused on ruffled seminal papilla. Bars = 1 mm.

Fig. 2. Phenacostethus sikat. A in Description of a new species of Phenacostethus (Atheriniformes: Phallostethidae) endemic to Kalimantan Selatan, Indonesian Borneo, reveals deep mtCOI divergence among miniature species

Fig. 2. Phenacostethus sikat. A, Holotype, MZB 25501, male, 13.4 mm SL. The caudal fin is damaged and incomplete. B, Paratype, USNM 443824, female, 13.8 mm SL. Bars = 1 mm.

Fig. 5 in Description of a new species of Phenacostethus (Atheriniformes: Phallostethidae) endemic to Kalimantan Selatan, Indonesian Borneo, reveals deep mtCOI divergence among miniature species

Fig. 5. MicroCT scans to illustrate skeletal and some soft tissue anatomy of the priapium in A, Phenacostethus sikat, MZB 25501, holotype, left lateral view of a sinistral male; and B, Phenacostethus smithi, USNM 329581, left lateral view of a dextral male. Names of priapial components follow Parenti (1989). The distal tip of the toxactinium, the prominent, anterior, hooked bone, is damaged in both specimens. Bars = 1 mm.

Fig. 1 in Description of a new species of Phenacostethus (Atheriniformes: Phallostethidae) endemic to Kalimantan Selatan, Indonesian Borneo, reveals deep mtCOI divergence among miniature species

Fig. 1. Distribution of the phallostethin fishes discussed herein. The genus Phenacostethus: Phe. sikat (black star, southeastern Borneo), Phe. sp. 1 (black diamond, southeastern Borneo), Phe. trewavasae (gray circles, Sarawak and Brunei, northwestern Borneo), Phe. smithi (black circles, Thailand, Cambodia, Sumatra, Peninsular Malaysia, Sarawak, and Brunei), and Phe. posthon (black squares, Thailand, Peninsular Malaysia, and Sumatra). Details of the collection localities of Phe. sikat are given in the text. The genus Phallostethus (black triangles): Pha. dunckeri (Muar, Peninsular Malaysia), Pha. cuulong (Vietnamese Mekong), and Pha. lehi (Sarawak and Brunei, northwestern Borneo). Map includes information from Roberts (1971a: fig. 1). Each symbol may represent more than one collection.

opencc-by-4.0Dec 2013View details →

Fig. 2 in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)

Fig. 2. Transmission electron microscopy photographs of fresh sperm samples: (A) Spermatozoa longitudinal section showing the transitional region of the flagellum and the classic nine doublets of microtubules (9+0), arrow. (B) Longitudinal section of the head and midpiece of a spermatid. (C) Transversal section of the midpiece showing the axoneme surrounded by mitochondria. N: Nucleus; P: Proximal centriole; D: Distal centriole; CC: Citoplasmic Channel; M: Mitochondria; F: Flagellum.

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Fig. 4 in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)

Fig. 4. Transmission electron microscopy photographs of pejerrey post thawed sperm showing different types of alterations. (A) Head with ruptured membranes (*). (B) Head with swollen and broken membrane (*). (C) Broken and swollen nuclear membrane (arrows) and alteration of the spatial orientation of mitochondria. (D) Ruptured and swollen membrane of the flagellum (arrows) with vesicles. (E) Tail around the head (arrows). N: Nucleus; M: Mitochondria; V: Vesicles.

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Fig. 3 in Ultrastructure of fresh and post thawed sperm of pejerrey Odontesthes bonariensis (Atheriniformes)

Fig. 3. Transmission electron microscopy photographs of the flagellum. (A) Flagellum axoneme showing the typical 9+2 doublets of microtubules. (B) Transversal section of the flagellum showing the lateral extensions like "fins" in both sides (arrows). (C) Longitudinal section of the flagellum. F: Flagellum.

Fig. 8 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals

Fig. 8. Geometric Morphometric Analysis applied to O. hatcheri individuals. Left: plot of DF3 vs. DF2 showing means and 95% confidence intervals by sampling sites (locality labels as in Fig. 1) NIHL (white triangle), CDP (black circle), 7: PELE (gray square), PDA (black triangle), MITO (black diamond), CARI (white square), EPU (black and white diamond), RIV (gray circle), ROS (white diamond), AME (black square), CHU (gray diamond), MUS (gray triangle), LBA (white circle), and PUY (white triangle). Right: deformation grids correspond to a relative warps analysis involving only CDP, PDA, and NIHL and PUY. Arrowheads indicate displacement of landmarks relative to consensus. Shaded area remarks relative position of landmarks 5 (anterior insertion of the first dorsal fin) and 12 (distal tip of the pelvic fin onto fish body).

Fig. 6 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals

Fig. 6. Probability for taxonomically identified Odontesthes hatcheri individuals of being O. hatcheri (left) and probability of taxonomically identified O. bonariensis individuals of being O. bonariensis (right). Number of fish, median, quartiles, and data outside 10 and 90th percentile are indicated. Water bodies are named as in Fig. 1.

Fig. 5 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals

Fig. 5. Morphometric differences between species. DF1 and residual DF2 (of the regression of DF2 versus Standard length) vs. Standard length (SL). Odontesthes bonariensis (white circle), O. hatcheri (black circle), and presumptive hybrids (gray circle).

Fig. 4 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals

Fig. 4. Geometric Morphometric Analysis applied to Odontesthes individuals. RW2 versus RW1 and deformation grids (tied to group means) for Odontesthes bonariensis (white circle), O. hatcheri (black circle) and presumptive hybrids (gray circle). Arrowheads indicate displacement of landmarks relative to consensus. Shaded area shows relative position of landmarks 5 (anterior insertion of the first dorsal fin) and 12 (distal tip of the pelvic fin onto fish body).

Fig. 1 in Populations of Odontesthes (Teleostei: Atheriniformes) in the Andean region of Southern South America: body shape and hybrid individuals

Fig. 1. Distribution of O. hatcheri (light gray) and O. bonariensis (dark gray) described by Dyer (2006) and sampling localities: ULLM, Ullum Reservoir; CARZ, Carrizal Reservoir; NIHL, Nihuil Reservoir; D, Lake San Lorenzo; URRE, Lake Urre Lauquen; CDP, Casa de Piedra Reservoir; PELE, Lake Pellegrini; PDA, Piedra del Aguila Reservoir; MITO, Lake Morenito; CARI, Lake Carilafquen; EPU, Lake Epuyén; RIV, Lake Rivadavia; ROS, Lake Rosario; AME, Florentino Ameghino Reservoir; CHU, Chubut River at Los Altares; MUS, Lake Musters; LBA, Lake Buenos Aires; PUY, Lake Pueyrredón. White triangles show the location of the three hatcheries (Estación Hidrobiológica de Chascomús 35º36'S, 58º01'W, Estación de Piscicultura de Embalse 32º13'S, 64º29'W, and Estación de Piscicultura Río Limay 38º59'S, 68º14'W), sources of stocking practices.

opencc-by-4.0Dec 2019View details →

Figure 3 in First record Neostethus bicornis (Phallostethidae: Atheriniformes) for Sumatran waters, Indonesia

Figure 3. The live specimens of female N.bicornis caught on 17 March 2018 in Bungin River, Banyuasin district, South Sumatra province, Indonesia (not preserved).