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333 results for “Gulf of Oman”
FIGURE 9 in Ampelisca Krøyer, 1842 (Amphipoda: Ampeliscidae) in the Persian Gulf and the Gulf of Oman
FIGURE 9. The character states of first coxa, head, basis of pereopod 7 and third epimeron of A. misakienesis based on drawings of Imbach (1967) (A), A. insignis based on drawings of Karaman & Barnard (1981) (B) and A. linearis sp. nov. present study(C).
Data from: Ecomorphological adaptation in three mudskippers (Teleostei: Gobioidei: Gobiidae) from the Persian Gulf and the Gulf of Oman
We hypothesise that the body shapes of three mudskipper species (Boleophthalmus dussumieri, Periophthalmus waltoni, and Scartelaos tenuis) are ecomorphological adaptations to different epi- and infaunal habitats. We investigated: (i) the association between burrow density and selected ecological variables; (ii) the phylogenetic relationships among these species, based on two mtDNA and one nDNA markers; (iii) their geometric morphometrics and ancestral shape reconstructions, based on two-dimensional landmark configurations; and (iv) their body surface-to-volume ratios (SAV), based on a geometric model. Boleophthalmus dussumieri and S. tenuis are more closely related, and more elongated than P. waltoni; the body of S. tenuis also has a higher SAV, and its elongated shape appears to be a divergent trait. P. waltoni is found in a wide range of conditions, including vegetated habitats; B. dussumieri is associated with low-energy conditions and fine unvegetated deposits; and S. tenuis is associated with high-energy conditions and coarser, non-cohesive sediments. These results suggest that body elongation in Scartelaos species is a divergent locomotory adaptation to marine habitats characterised by semi-liquid and less cohesive sediments. The more compact body shape of Periophthalmus species is hypothesised to have evolved from a gobionelline ancestor, and is proposed to be a preadaptation to subaerial locomotion in semi-terrestrial habitats.
FIGURE 2. Calathiscus tantillus, n.gen., n in coral (Scleractinia, Poritidae) from the Gulf of Oman
FIGURE 2. Calathiscus tantillus, n.gen., n.sp. Details of the corallites A. Paratype (FLMNH, UF535). B. Paratype (IRSNB, IG30190).
FIGURE 1. Calathiscus tantillus, n. gen., n in coral (Scleractinia, Poritidae) from the Gulf of Oman
FIGURE 1. Calathiscus tantillus, n. gen., n.sp. Holotype: A. View of the corallum. B. Details of the corallites.
FIGURE 4. Calathiscus tantillus, n.gen., n in coral (Scleractinia, Poritidae) from the Gulf of Oman
FIGURE 4. Calathiscus tantillus, n.gen., n.sp. A. Holotype. Underwater micrograph of the live colony. B. Details of a colony showing the typical aspects of the expanded polyps.
FIGURE 3. Calathiscus tantillus, n. gen., n in coral (Scleractinia, Poritidae) from the Gulf of Oman
FIGURE 3. Calathiscus tantillus, n. gen., n.sp. SEM micrograph. A. normally calcified specimen. Note the ventral triplet of septa and the irregular pattern of septal fusion. B. lightly calcified specimen with incomplete synapticular ring around the central fossa.
FIGURE 12 in DNA barcoding and morphological studies confirm the occurrence of three Atarbolana (Crustacea: Isopoda: Cirolanidae) species along the coastal zone of the Persian Gulf and Gulf of Oman
FIGURE 12. Unrooted Neighbour-joining phylogram of the analyzed CO1 sequences of the three studied Atarbolana species. The optimal tree with the sum of branch length = 0.35376694 is shown. Numbers next to internal branches are non-parametric bootstrap values (in %). Only values above 90% are shown. The tree is drawn to scale, with branch lengths in the same units as those of the evolutionary distances used to infer the phylogenetic tree. Evolutionary distances were computed using the Kimura 2-parameter method and are in the units of the number of base substitutions per site. The analysis involved 28 nucleotide sequences. Codon positions included were 1st+2nd+3rd+Noncoding. All positions containing gaps and missing data were eliminated. There were a total of 658 positions in the final dataset.
FIGURE 10 in DNA barcoding and morphological studies confirm the occurrence of three Atarbolana (Crustacea: Isopoda: Cirolanidae) species along the coastal zone of the Persian Gulf and Gulf of Oman
FIGURE 10. Atarbolana setosa, male, (ZMSU 1014); A–C, pereopods 5–7 respectively; D, uropod dorsal view; E, uropod ventral view.
FIGURE 8 in DNA barcoding and morphological studies confirm the occurrence of three Atarbolana (Crustacea: Isopoda: Cirolanidae) species along the coastal zone of the Persian Gulf and Gulf of Oman
FIGURE 8. Atarbolana setosa, male, (ZMSU 1014); A, left mandible; B, maxillula; C, maxilla; D, maxilliped; E, maxilliped endite.
FIGURE 7 in DNA barcoding and morphological studies confirm the occurrence of three Atarbolana (Crustacea: Isopoda: Cirolanidae) species along the coastal zone of the Persian Gulf and Gulf of Oman
FIGURE 7. Atarbolana setosa, male, (ZMSU 1014); A, dorsal view; B, lateral view; C, pleotelson apex; D, female pleotelson; E, antennula; F, antenna.
FIGURE 5 in DNA barcoding and morphological studies confirm the occurrence of three Atarbolana (Crustacea: Isopoda: Cirolanidae) species along the coastal zone of the Persian Gulf and Gulf of Oman
FIGURE 5. Atarbolana exoconta, male, (ZMSU 1010); A–C, pereopods 5–7 respectively; D, uropod dorsal view; E, uropod ventral view.
FIGURE 3 in DNA barcoding and morphological studies confirm the occurrence of three Atarbolana (Crustacea: Isopoda: Cirolanidae) species along the coastal zone of the Persian Gulf and Gulf of Oman
FIGURE 3. Atarbolana exoconta, male, (ZMSU 1010); A, left mandible; B, maxillula; C, maxilla; D, maxilliped; E, maxilliped endite.
FIGURE 2 in DNA barcoding and morphological studies confirm the occurrence of three Atarbolana (Crustacea: Isopoda: Cirolanidae) species along the coastal zone of the Persian Gulf and Gulf of Oman
FIGURE 2. Atarbolana exoconta, male, (ZMSU 1010); A, dorsal view; B, lateral view; C, pleotelson apex D: pleotelson apex (Kuwait) E: pleotelson apex (Hengam Island); F, antennula; G, antenna.
FIGURE 6. Perinereis horsti, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 6. Perinereis horsti, A, anterior end, dorsal view showing everted proboscis; B, ventral view of same; C, anterior parapodium; D, posterior parapodium; E, neuropodial heterogomph falciger, anterior parapodium.
FIGURE 8. Pseudonereis trimaculata, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 8. Pseudonereis trimaculata, A, anterior end, dorsal view showing everted proboscis; B, ventral view of same; C, anterior parapodium; D, mid-body parapodium; E, posterior parapodium; F, neuropodial heterogomph falciger, anterior parapodium; G, neuropodial homogomph spiniger, posterior body.
FIGURE 5. Perinereis heterodonta, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 5. Perinereis heterodonta, A, anterior end, ventral view, dissected pharynx; B, anterior end, dorsal view; C, anterior parapodium; D, posterior parapodium; E, neuropodial heterogomph falciger, anterior parapodium; F, neuropodial homogomph spiniger, posterior parapodium.
FIGURE 1 in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 1. Sampling localities along littoral zone of the Gulf of Oman, Iran. Site numbers are explained in Table 1.
FIGURE 3. Nereis coutieiri, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 3. Nereis coutieiri, A, anterior end, dorsal view; B, anterior parapodium; C, mid-body parapodium; D, posterior parapodium; E, notopodial homogomph falciger, posterior parapodium; F, neuropodial heterogomph falciger, anterior parapodium.
FIGURE 7. Perinereis nuntia, A in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 7. Perinereis nuntia, A, anterior end, dorsal view showing everted proboscis; B, ventral view of same; C, anterior parapodium; D, posterior parapodium; E, neuropodial heterogomph falciger, anterior parapodium.
FIGURE 2 in Nereididae (Annelida: Polychaeta) from intertidal habitats in the Gulf of Oman, Iran
FIGURE 2. Dorsal views of anterior end of selected nereidid species collected from the intertidal of Gulf of Oman, A, Nereis coutieri, body width about 1 mm; B, Perinereis heterodonta, body width about 2.5 mm; C, Perinereis horsti, pharynx everted, body width about 2 mm; D, Perinereis nuntia, pharynx everted, body width about 3 mm; E, Pseudonereis trimaculata, pharynx everted; body width about 2 mm.
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