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50 results for “Sardinella”
Fig. 4 in Fluctuating Asymmetry And Length-Weight Relationship Of The Three Populations Of Sardinella Lemuru (Clupeiformes, Dorosomatidae) From Surigao Del Norte, Philippines
Fig. 4. Principal components (PC) inferred deformation grid and histogram of individual (symmetry) in Surigao City, Surigao del Norte.
Fig. 2 in Fluctuating Asymmetry And Length-Weight Relationship Of The Three Populations Of Sardinella Lemuru (Clupeiformes, Dorosomatidae) From Surigao Del Norte, Philippines
Fig. 2. Principal components (PC) inferred deformation grid and histogram of individual (symmetry) in Malimono, Surigao del Norte.
Fig. 1 in Fluctuating Asymmetry And Length-Weight Relationship Of The Three Populations Of Sardinella Lemuru (Clupeiformes, Dorosomatidae) From Surigao Del Norte, Philippines
Fig. 1. The Philippine map showing the location of Caraga Region in Mindanao Island and the three sampling areas in the province of Surigao del Norte. Map credited to Engr. Medielyn M. Odtojan.
Fig. 3 in Fluctuating Asymmetry And Length-Weight Relationship Of The Three Populations Of Sardinella Lemuru (Clupeiformes, Dorosomatidae) From Surigao Del Norte, Philippines
Fig. 3. Principal components (PC) inferred deformation grid and histogram of individual (symmetry) in San Francisco, Surigao del Norte.
Fig. 2 in First Japanese Specimen-based Records of Sardinella gibbosa (Teleostei: Clupeiformes: Clupeidae) from Okinawa Island
Fig. 2. Stained scale removed from right side of midbody (just below dorsal fin) of Sardinella gibbosa from Nakagusuku Bay, Okinawa Island, Ryukyu Islands, Japan (URM-P 44692, 132.6 mm SL; left-right inverted).
Fig. 1 in First Japanese Specimen-based Records of Sardinella gibbosa (Teleostei: Clupeiformes: Clupeidae) from Okinawa Island
Fig. 1. Preserved specimens of Sardinella gibbosa from Nakagusuku Bay, Okinawa Island, Ryukyu Islands, Japan. A, URM-P 6388, 142.4 mm SL; B, URM-P 8674, 137.1 mm SL; C, URM-P 44676, 124.0 mm SL; D, URM-P 44677, 118.4 mm SL; E, URM-P 44678, 117.0 mm SL; F, URM-P 44692, 132.6 mm SL; G, URM-P 44697, 111.2 mm SL; H, URM-P 44698, 130.0 mm SL; lateral (I) and dorsal views (J, white arrow indicates black spot on dorsal-fin origin) of URM-P 44683, 127.3 mm SL.
Data from: Restriction site-associated DNA sequencing reveals local adaptation despite high levels of gene flow in Sardinella lemuru (Bleeker, 1853) along the northern coast of Mindanao, Philippines
<p>Stock identification and delineation are important in the management and conservation of marine resources. These were highlighted as priority research areas for Bali sardinella (<em>Sardinella lemuru</em>) which is among the most commercially important fishery resources in the Philippines. Previous studies have already assessed the stocks of <em>S. lemuru</em> between Northern Mindanao Region (NMR) and Northern Zamboanga Peninsula (NZP), yielding conflicting results. Phenotypic variation suggests distinct stocks between the two regions, while mitochondrial DNA did not detect evidence of genetic differentiation for this high gene flow species. This paper tested the hypothesis of regional structuring using genome-wide single nucleotide polymorphisms (SNPs) acquired through restriction-site associated DNA sequencing (RADseq). We examined patterns of population genomic structure using a full panel of 3,573 loci, which was then partitioned into a neutral panel of 3,348 loci and an outlier panel of 31 loci. Similar inferences were obtained from the full and neutral panels, which were contrary to the inferences from the outlier panel. While the full and neutral panels suggested a panmictic population (global F<sub>ST</sub> ~ 0, p > 0.05), the outlier panel revealed genetic differentiation between the two regions (global F<sub>ST</sub> = 0.161, p = 0.001; F<sub>CT</sub> = 0.263, p < 0.05). This indicated that while gene flow is apparent, selective forces due to environmental heterogeneity between the two regions play a role in maintaining adaptive variation. Annotation of the outlier loci returned five genes that were mostly involved in organismal development. Meanwhile, three unannotated loci had allele frequencies that correlated with sea surface temperature. Overall, our results provided support for local adaptation despite high levels of gene flow in <em>S. lemuru</em>. Management therefore should not only focus on demographic parameters (e.g., stock size, catch volume), but also consider the preservation of adaptive variation.</p>
Fig. 2 in First Japanese Records of Sardinella albella (Teleostei: Clupeiformes: Clupeidae) from Okinawa Island, with a Key to Japanese Species of Sardinella
Fig. 2. Stained scale removed from left side of midbody (just above pectoral fin) of Sardinella albella from Nakagusuku Bay, Okinawa Island, Ryukyu Archipelago, Japan (ZUMT 17185, 71.9 mm SL).
Fig. 1 in First Japanese Records of Sardinella albella (Teleostei: Clupeiformes: Clupeidae) from Okinawa Island, with a Key to Japanese Species of Sardinella
Fig. 1. Formalin-preserved preserved specimens of Sardinella albella from Nakagusuku Bay, Okinawa Island, Ryukyu Archipelago, Japan [A: ZUMT 17185, 71.9 mm SL; B: ZUMT 17186, 75.6 mm SL; C: ZUMT 17187, 69.3 mm SL (a: lateral, b: dorsal, c: ventral views)].
Fig. 3 in New Microsporidia, Glugea sardinellensis n. sp. (Microsporea, Glugeida) Found in Sardinella aurita Valenciennes, 1847, Collected off Tunisian coasts
Fig. 3. Maximum likelihood phylogenetic tree based on the SSU rDNA data set selected microsporidian species showing the position of Glugea sardinellensis sp. n. Bootstrap supports based on 1,000 replicates from Maximum likelihood/neighbour joining analysis are indicated at each node. GenBank accession numbers for each species are reported in parenthesis. Brachiola algerae was used as outgroup. The scale bar shows the number of changes per site.
Fig. 2 in New Microsporidia, Glugea sardinellensis n. sp. (Microsporea, Glugeida) Found in Sardinella aurita Valenciennes, 1847, Collected off Tunisian coasts
Fig. 2. Ultrastructural aspects of the developmental stages of G. sardinellenesis n. sp. (A) unincleated sporoblast, (B) binucleated sporoblast, (C) immature spore, (D) mature spore showing anchoring disc (AD), polar filament (PF), lamellar polaroplast (Pb), posterior vacuole (V), nucleus (N), exospore (Ex) and endospore (En). Scale bars: 1 µm.
Fig. 1. Glugea sardinellensis n in New Microsporidia, Glugea sardinellensis n. sp. (Microsporea, Glugeida) Found in Sardinella aurita Valenciennes, 1847, Collected off Tunisian coasts
Fig. 1. Glugea sardinellensis n. sp. infecting Sardinella aurita. (A–B) Infected round sardinella showing different sized xenomas in the pyloric caeca (arrows) (scale bar: 1 cm). (C) Fresh spores of G. sardinellensis n. sp. (scale bar: 5 µm). (D–E) Semi-thin section of the pe- ripheral region of the xemona showing the wall (XW) and numerous spores (scale bar: 20 µm). Cf – collagen fibers; Fb – fibroblast cells.
Figure 7 in The relationship between Sardinella aurita landings and the environmental factors in Moroccan waters (21°-26°N)
Figure 7. – GAM smoothing curves fit- ted to effects of SST, Chl-a, and UI on S. aurita landings at latitude 22°N. The solid lines are the estimated smoother and the dashed lines represent 95% confidence intervals around the main effects. The black lines at the bottom of each plot indicate where the data values lie.
Text-fig. 2. A – Elasmobranchii gen. et spec. indet. specimen NM Pc 02876b; B – Scopeloides glarisianus dentary NM Pc 02888 (the white arrows mark the tips of the "fang-like" teeth); C – S. glarisianus disarticulated skeleton NM Pc 02887a; D – Sardinella sardinites scale NM Pc 02886; E – Clupeidae gen. et spec. indet. articulated skeleton without head NM Pc 02889; F – Anenchelum glarisianum body fragment NM Pc 02880a; G – Percoidei gen. et sp. indet. preoperculum (G-1) and its interpretation (G-2) NM Pc 02891. The arrow shows the enlarged spine in the angle between rami verticalis and horizontalis. Abbreviations: cl – cleithrum; op – operculum; pcl – postcleithrum. in An Annotated List Of The Oligocene Fish Fauna From The Osíčko Locality (Menilitic Fm.; Moravia, The Czech Republic)
Text-fig. 2. A – Elasmobranchii gen. et spec. indet. specimen NM Pc 02876b; B – Scopeloides glarisianus dentary NM Pc 02888 (the white arrows mark the tips of the "fang-like" teeth); C – S. glarisianus disarticulated skeleton NM Pc 02887a; D – Sardinella sardinites scale NM Pc 02886; E – Clupeidae gen. et spec. indet. articulated skeleton without head NM Pc 02889; F – Anenchelum glarisianum body fragment NM Pc 02880a; G – Percoidei gen. et sp. indet. preoperculum (G-1) and its interpretation (G-2) NM Pc 02891. The arrow shows the enlarged spine in the angle between rami verticalis and horizontalis. Abbreviations: cl – cleithrum; op – operculum; pcl – postcleithrum.
Figure 4 in La contamination métallique du rouget de vase (Mullus barbatus) et de la sardinelle (Sardinella aurita) du golfe de Tunis
Figure 4. - Teneurs en Hg dans les organes du rouget de vase et de la sardinelle en fonction des saisons (n = 30). Barres verticales: écart type. [Levels of Hg in the organs of Red Mullet and Sardinella (n = 30). Vertical bars: standard deviation.]
Figure 1 in La contamination métallique du rouget de vase (Mullus barbatus) et de la sardinelle (Sardinella aurita) du golfe de Tunis
Figure 1. - Carte du golfe de Tunis et zone d'échantillonnage. [Map of Tunis Gulf and sampling stations.]
Figure 3 in La contamination métallique du rouget de vase (Mullus barbatus) et de la sardinelle (Sardinella aurita) du golfe de Tunis
Figure 3. - Teneurs en Pb dans les organes du rouget de vase et de la sardinelle en fonction des saisons (n = 30). Barres verticales: écart type. [Levels of Pb in the organs of Red Mullet and Sardinella (n = 30). Vertical bars: standard deviation.]
Figure 6 in La contamination métallique du rouget de vase (Mullus barbatus) et de la sardinelle (Sardinella aurita) du golfe de Tunis
Figure 6. - Teneurs en Zn dans les organes du rouget de vase et de la sardinelle en fonction des saisons (n = 30). Barres verticales: écart type. [Levels of Zn in the organs of Red Mullet and Sardinella (n = 30). Vertical bars: standard deviation.]
Figure 2 in La contamination métallique du rouget de vase (Mullus barbatus) et de la sardinelle (Sardinella aurita) du golfe de Tunis
Figure 2. - Teneurs en Cd dans les organes du rouget de vase et de la sardinelle en fonction des saisons (n = 30). Barres verticales: écart type. [Levels of Cd in the organs of Red Mullet and Sardinella (n = 30). Vertical bars: standard deviation.]
Figure 5 in La contamination métallique du rouget de vase (Mullus barbatus) et de la sardinelle (Sardinella aurita) du golfe de Tunis
Figure 5. - Teneurs en Cu dans les organes du rouget de vase et de la sardinelle en fonction des saisons (n = 30). Barres verticales: écart type. [Levels of Cu in the organs of Red Mullet and Sardinella (n = 30). Vertical bars: standard deviation.]
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