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53 results for “northern Red Sea”
Figure 1 in Taxonomic review of the "posteli-species group" of goatfishes (genus Parupeneus, Mullidae), with description of a new species from the northern Red Sea
Figure 1. – Relationships among eight morphometric characters including SL and total number of gill rakers in the five posteli-group species and three populations of Parupeneus posteli.
Figure 3. – A-E in Taxonomic review of the "posteli-species group" of goatfishes (genus Parupeneus, Mullidae), with description of a new species from the northern Red Sea
Figure 3. – A-E: Parupeneus posteli; A: SAIAB 83959, 88 mm SL, Baissac Bank, southern Mascarene Plateau (O. Alvheim and D. Tweddle); B: SAIAB 83959, 90 mm SL, same locality details (O. Alvheim and D. Tweddle); C: SAIAB 83898, 105 mm SL, Soudan Bank, southern Mascarene Plateau (O. Alvheim and D. Tweddle); D: large-sized fish (SL unknown), Réunion, Mascarene Islands (P. Guézé); E: MNHN 1965-0056, HT, 150 mm SL, same locality details (MNHN); F: Parupeneus sinai n. sp., MNHN 1967-0557, HT, 83 mm SL, northern Red Sea, right side shown, image reversed (F. Uiblein). Scale bars = 20 mm.
Figure 2. – A in Taxonomic review of the "posteli-species group" of goatfishes (genus Parupeneus, Mullidae), with description of a new species from the northern Red Sea
Figure 2. – A: Parupeneus chrysonemus BPBM 34775, 129 mm SL, Midway Atoll, Hawaiian Islands (J.E. Randall); B: P. chrysonemus BPBM 39141, 140 mm SL, Oahu, Hawaiian Islands (J.E. Randall); C: P. louise, large-sized fish (SL unknown), Rurutu, Austral Islands, French Polynesia (A. Stein); D: P. moffiti, HT, 230 mm SL, Guam, Mariana Islands (R.F. Myers). Scale bars = 20 mm.
А – типовые местонахоЖдениЯ: Зал. ЛаврентиЯ (красный маркер), б. ПровидениЯ (Зеленый маркер); B, B' – иЗобраЖениЯ раковины (B) и Зуба радулы (B') Bela violacea var. nodulosa. Вр=14.5 мм, ДЗ=0.25 мм, иЗ: Krause [1885, pl. 18, figs. 4, 12]; C, C' – синтип Bela violacea var. nodulosa (C) и увеличенный участок предпоследнего оборота (C'), ZMB 37860, Вр=12 мм (фотографиЯ – с раЗрешениЯ ZMB); D–I – иЗменчивость Curtitoma violacea: D – Pleurotoma violacea var. brevis. ZIN беЗ номера, ЗФИ, о-в Аполлонова, Американский Залив, 3–4 м. Вр=8.2 мм; E – Defrancia becki. ZIN беЗ номера, ЗФИ, о-в Кука, 3–4 м. Вр=9.1 мм; F – Bela violacea var. laevior. Вр=12 мм, иЗ: Sars [1878, pl. 17, fig. 3]; G – Bela bicarinata var. geminolineata. ZIN 21324/28, Баренцево море, Югорский Шар, 13 м. Вр=8.7 мм; H – Pleurotoma bicarinata. ZIN 41203/156, ЗФИ, о-в ГрЭм-БЭм, 12–15 м. Вр=8.4 мм; I, I' – Зубы радулы типичной (I) и беЗкилевой (I') форм. ДЗ=0.12 мм и 0.21 мм, соответственно, иЗ: [Sars, 1878, pl. 9, figs. 7, 8]; J – иЗобраЖение раковины Lora inequita. Вр=11 мм, иЗ: Dall [1919, pl. 16, fig. 9]; K – голотип Lora inequita, USNM 222238. Вр=11 мм (фотографиЯ – с раЗрешениЯ USNM); L, L' – Oenopota inequita sensu Bogdanov non Dall: раковины (L) и Зуб радулы (L'). Вр=12 мм и 11.6 мм, соответственно, ДЗ=0.15 мм, иЗ: Богданов [1990, рис. 175, 176, 422 (7)]. A – type localities: Lawrence Bay (red circle), Providence Bay (green circle); B, B' – images of the shell (B) and tooth of the radula (B') of Bela violacea var. nodulosa. H=14.5 mm, L=0.25 mm, after Krause [1885, pl. 18, figs. 4, 12]; C, C' – a syntype of Bela violacea var. nodulosa (C) and the enlarged section of the penultimate whorl (C'), ZMB 37860, H=12 mm (photo – courtesy of ZMB); D–I – variability of Curtitoma violacea: D – Pleurotoma violacea var. brevis. ZIN uncatalogued, Franz Josef Land, Apollonova Isl., American Gulf, 3–4 m. H=8.2 mm; E – Defrancia becki. ZIN uncatalogued, Franz Josef Land, Cook Isl., 3–4 m. H=9.1 mm; F – Bela violacea var. laevior. H=12 mm, after Sars [1878, pl. 17, fig. 3]; G – Bela bicarinata var. geminolineata. ZIN 21324/28, Barents Sea, Ugra Shar, 13 m. H=8.7 mm; H – Pleurotoma bicarinata. ZIN 41203/156, Franz Josef Land, Graham-Bam Isl., 12–15 m. H= 8.4 mm; I, I' – teeth of typical (I) and keelless (I') forms. L=0.12 mm and 0.21 mm, respectively; after Sars [1878, pl. 9, figs. 7,8]; J – image of Lora inequita. H=11 mm, after Dall [1919, pl.16, fig. 9]; K – the holotype of Lora inequita, USNM 222238. H=11 mm (photo – courtesy of USNM); L, L' – Oenopota inequita sensu Bogdanov non Dall: shells (L) and tooth (L'). H=12 mm and 11.6 mm, respectively, L=0.15 mm, after Bogdanov [1990, figs. 175, 176, 422 (7)]. in Curtitoma nodulosa (Krause, 1885) comb. nov. (Gastropoda: Mangeliidae), a rare species twice described from the northern part of Bering Sea
А – типовые местонахоЖдениЯ: Зал. ЛаврентиЯ (красный маркер), б. ПровидениЯ (Зеленый маркер); B, B' – иЗобраЖениЯ раковины (B) и Зуба радулы (B') Bela violacea var. nodulosa. Вр=14.5 мм, ДЗ=0.25 мм, иЗ: Krause [1885, pl. 18, figs. 4, 12]; C, C' – синтип Bela violacea var. nodulosa (C) и увеличенный участок предпоследнего оборота (C'), ZMB 37860, Вр=12 мм (фотографиЯ – с раЗрешениЯ ZMB); D–I – иЗменчивость Curtitoma violacea: D – Pleurotoma violacea var. brevis. ZIN беЗ номера, ЗФИ, о-в Аполлонова, Американский Залив, 3–4 м. Вр=8.2 мм; E – Defrancia becki. ZIN беЗ номера, ЗФИ, о-в Кука, 3–4 м. Вр=9.1 мм; F – Bela violacea var. laevior. Вр=12 мм, иЗ: Sars [1878, pl. 17, fig. 3]; G – Bela bicarinata var. geminolineata. ZIN 21324/28, Баренцево море, Югорский Шар, 13 м. Вр=8.7 мм; H – Pleurotoma bicarinata. ZIN 41203/156, ЗФИ, о-в ГрЭм-БЭм, 12–15 м. Вр=8.4 мм; I, I' – Зубы радулы типичной (I) и беЗкилевой (I') форм. ДЗ=0.12 мм и 0.21 мм, соответственно, иЗ: [Sars, 1878, pl. 9, figs. 7, 8]; J – иЗобраЖение раковины Lora inequita. Вр=11 мм, иЗ: Dall [1919, pl. 16, fig. 9]; K – голотип Lora inequita, USNM 222238. Вр=11 мм (фотографиЯ – с раЗрешениЯ USNM); L, L' – Oenopota inequita sensu Bogdanov non Dall: раковины (L) и Зуб радулы (L'). Вр=12 мм и 11.6 мм, соответственно, ДЗ=0.15 мм, иЗ: Богданов [1990, рис. 175, 176, 422 (7)]. A – type localities: Lawrence Bay (red circle), Providence Bay (green circle); B, B' – images of the shell (B) and tooth of the radula (B') of Bela violacea var. nodulosa. H=14.5 mm, L=0.25 mm, after Krause [1885, pl. 18, figs. 4, 12]; C, C' – a syntype of Bela violacea var. nodulosa (C) and the enlarged section of the penultimate whorl (C'), ZMB 37860, H=12 mm (photo – courtesy of ZMB); D–I – variability of Curtitoma violacea: D – Pleurotoma violacea var. brevis. ZIN uncatalogued, Franz Josef Land, Apollonova Isl., American Gulf, 3–4 m. H=8.2 mm; E – Defrancia becki. ZIN uncatalogued, Franz Josef Land, Cook Isl., 3–4 m. H=9.1 mm; F – Bela violacea var. laevior. H=12 mm, after Sars [1878, pl. 17, fig. 3]; G – Bela bicarinata var. geminolineata. ZIN 21324/28, Barents Sea, Ugra Shar, 13 m. H=8.7 mm; H – Pleurotoma bicarinata. ZIN 41203/156, Franz Josef Land, Graham-Bam Isl., 12–15 m. H= 8.4 mm; I, I' – teeth of typical (I) and keelless (I') forms. L=0.12 mm and 0.21 mm, respectively; after Sars [1878, pl. 9, figs. 7,8]; J – image of Lora inequita. H=11 mm, after Dall [1919, pl.16, fig. 9]; K – the holotype of Lora inequita, USNM 222238. H=11 mm (photo – courtesy of USNM); L, L' – Oenopota inequita sensu Bogdanov non Dall: shells (L) and tooth (L'). H=12 mm and 11.6 mm, respectively, L=0.15 mm, after Bogdanov [1990, figs. 175, 176, 422 (7)].
Figure 4 in New record of the rare flounder Parabothus budkeri (Chabanaud, 1943) (Teleostei: Bothidae) from the Gulf of Aqaba, northern Red Sea, with a key to the genus Parabothus
Figure 4. – Parabothus budkeri (Chabanaud, 1943), HUJ 1635, 1 male, 49.7 mm SL, Red Sea, Gulf of Aqaba, Israel, Eilat. X-ray.
Figure 2 in New record of the rare flounder Parabothus budkeri (Chabanaud, 1943) (Teleostei: Bothidae) from the Gulf of Aqaba, northern Red Sea, with a key to the genus Parabothus
Figure 2. – Parabothus budkeri (Chabanaud, 1943), HUJ 1635, 1 male, 49.7 mm SL, Red Sea, Gulf of Aqaba, Israel, Eilat. Photograph by D. Golani. Blind side.
Figure 1 in New record of the rare flounder Parabothus budkeri (Chabanaud, 1943) (Teleostei: Bothidae) from the Gulf of Aqaba, northern Red Sea, with a key to the genus Parabothus
Figure 1. – Parabothus budkeri (Chabanaud, 1943), HUJ 1635, 1 male, 49.7 mm SL, Red Sea, Gulf of Aqaba, Israel, Eilat. Photograph by D. Golani. Ocular side.
Sponge diversity patterns in the shallow and mesophotic reefs of the Northern Red Sea row data
<p><span>Accumulating data regarding the increasingly degraded coral reefs worldwide have directed focus to the unique mesophotic coral ecosystem (MCE) as a potential refuge for shallow-water endangered species. Sponges play a crucial role in coral-reef functioning but are often overlooked in benthic surveys. This knowledge gap is especially true for the Red Sea, where data on sponge abundance, coverage and species composition are scarce. Moreover, no study to date has examined Red Sea mesophotic sponges. </span></p> <p><span>Here we compared sponge diversity metrics between the shallow and mesophotic reefs in the Gulf of Aqaba, Northern Red Sea. We also examined the role of biotic and abiotic parameters in determining sponge spatial variability. Sponge diversity metrics significantly varied with increasing depth and between sites. Sponge species composition also significantly differed between depth and sites. However, while no significant evidence supported a sponge bottom-up control, the findings indicated that local factors, such as site characters and biotic interactions, might play essential roles in determining sponge diversity and community composition. The sponges' spatial differences found in this study highlight the importance of considering variability in benthic communities and the factors controlling this, when designing management tools for coral reefs, particularly for the Northern Red Sea.</span></p>
Figure 1. – Bodianus rubrisos. A in Record of Bodianus rubrisos Gomon, 2006 from the northern Red Sea, previously misidentified as B. leucosticticus (non Bennett) or B. trilineatus (non Fowler) (Labridae)
Figure 1. – Bodianus rubrisos. A: HUJ 13667, male, 190.6 mm SL, Eilat, Gulf of Aqaba, Red Sea, 200 m depth. Photograph Arik Diamant; B: HUJ 20530, female, 172.3 mm SL, Eilat, Gulf of Aqaba, Red Sea, 200-300 m depth. Photograph Daniel Golani.
Figure 2 in Record of Bodianus rubrisos Gomon, 2006 from the northern Red Sea, previously misidentified as B. leucosticticus (non Bennett) or B. trilineatus (non Fowler) (Labridae)
Figure 2. – Geographical distribution of the subgenus Bodianus (Peneverreo). A: B. leucosticticus; B: B. paraleucosticticus; C: B. rubrisos; D: B. trilineatus.
Sponge diversity patterns in the shallow and mesophotic reefs of the Northern Red Sea row data
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Bathymetric data from the Northern Red Sea
<p><strong>If you use these data, please refer to Ribot M., et al. (2024), </strong><strong>Vertical deformation along a strike-slip plate boundary: the uplifted marine terraces of the Gulf of Aqaba and Tiran Island, at the southern end of the Dead Sea Fault, Tectonics, <em>in press.</em></strong></p> <p>A high-resolution bathymetric survey of the northern Red Sea, near the Strait of Tiran and Tiran Island was conducted on board the R/V Thuwal from September 3<sup>rd</sup> to September 10<sup>th</sup>, 2019. We used a Kongsberg EM710-MK2 multibeam echo sounder (operating in the 70-100 kHz range) calibrated with CTD (Conductivity, Temperature, Depth) profiles. In order to maximize the range capability and to reduce interference from multiple returns we used a transmit fan which sequentially divides the signal into three sectors with distinct transmit frequencies and waveforms. We limited the system to a swath of 2000 m (i.e. 1000 m swath on each side of the beamer) in order to ensure appropriate beam density as to grid the data in a 10 m wide pixel raster across the track. Similarly, the survey speed was kept at 5-6 kn (~10 km/h) to limit the spacing between successive survey points and to ensure that the maximum pixel width is 10 m along the track as well. Survey lines were acquired every ~1000 m in deep water and 800 m near the shore, to ensure a double coverage of each point in opposite directions.</p> <p>The results were imported into the commercial SiS multibeam software and used to correct the incoming multibeam data. Then, the bathymetric data were automatically screened for obvious outliers and, additionally, we manually identified and removed remaining spurious data points.</p> <p>From this dataset, we built a Digital Elevation Model (DEM) of the bathymetry by averaging raw data values to a 10 m horizontal grid.</p> <p>The vertical resolution of the DEM is controlled by the pulse duration of the acoustic signal. The vertical resolution (R) can be calculated following R = v⋅d/2 with v the wave propagation velocity in water and d the duration of the signal. During the data acquisition, we tuned the pulse duration at 2 ms, and calibrated the wave propagation velocity with the CTD casts with values ranging between 1535 and 1558 m/s. Thus, it implies that the vertical resolution is 1.5 m.</p> <p><strong>If you use these data, please refer to Ribot M., et al. (2024), </strong><strong>Vertical deformation along a strike-slip plate boundary: the uplifted marine terraces of the Gulf of Aqaba and Tiran Island, at the southern end of the Dead Sea Fault, Tectonics, <em>in press.</em></strong></p>
Half a century of echinoid population decline in the northern Gulf of Aqaba, Red Sea
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FIGURE 5. A in Amphimedon species (Porifera: Niphatidae) from the Gulf of Aqaba, Northern Red Sea: Filling the gaps in the distribution of a common pantropical genus
FIGURE 5. A. Amphimedon hamadai sp.nov., habit (scale bar = 1 cm); B. Amphimedon hamadai sp.nov., peripheral skeleton (scale bar = 500 µm); C. Amphimedon hamadai sp.nov., choanosomal skeleton showing the anisotropic arrangement of the fibres (scale bar = 100 µm).
FIGURE 4. A in Amphimedon species (Porifera: Niphatidae) from the Gulf of Aqaba, Northern Red Sea: Filling the gaps in the distribution of a common pantropical genus
FIGURE 4. A. Amphimedon jalae sp.nov. habit (scale bar = 1 cm); B. Amphimedon jalae sp.nov., ectosomal skeleton showing the threedimensional network of spicule tracts (scale bar = 100 µm); C. Amphimedon jalae sp.nov., cross section of choanosomal skeleton, (scale bar = 100 µm).
FIGURE 3. A in Amphimedon species (Porifera: Niphatidae) from the Gulf of Aqaba, Northern Red Sea: Filling the gaps in the distribution of a common pantropical genus
FIGURE 3. A. Amphimedon dinae, habit (scale bar = 1 cm); B. Amphimedon dinae sp.nov., ectosomal skeleton (scale bar = 500 µm); C. Amphimedon dinae sp.nov., choanosomal skeleton showing the thin oxeas embedded in the fibres (scale bar =100 µm).
FIGURE 2. A in Amphimedon species (Porifera: Niphatidae) from the Gulf of Aqaba, Northern Red Sea: Filling the gaps in the distribution of a common pantropical genus
FIGURE 2. A. Amphimedon chloros Ilan et al., 2004, habit (scale bar = 1 cm); B. Amphimedon chloros Ilan et al., 2004, structure of the ectosomal skeleton showing the threedimensional network of spicule tracts (scale bar = 0.5 mm); C–F. SEMimages of oxeas of Amphimedon chloros (C), A.dinae sp.nov.(D), A.jalae sp.nov.(E) and A.hamadai sp.nov.(F) (scale bars = 10 µm).
FIGURE 1 in Amphimedon species (Porifera: Niphatidae) from the Gulf of Aqaba, Northern Red Sea: Filling the gaps in the distribution of a common pantropical genus
FIGURE 1. Map of the Northern Red Sea showing the localities where the described sponges were observed and collected.
FIGURE 3. Suberea purpureaflava n in Porifera, one new species Suberea purpureaflava n. sp. (Demospongiae, Verongida, Aplysinellidae) from northern Red Sea coral reefs, with short descriptions of Red Sea Verongida and known Suberea species
FIGURE 3. Suberea purpureaflava n. sp. A) preserved holotype, scale bar 1 cm, B) rather irregular holotype: fibre with clearly visible bark (arrow), scale bar 200 µm.
FIGURE 2. Suberea purpureaflava n in Porifera, one new species Suberea purpureaflava n. sp. (Demospongiae, Verongida, Aplysinellidae) from northern Red Sea coral reefs, with short descriptions of Red Sea Verongida and known Suberea species
FIGURE 2. Suberea purpureaflava n. sp. in life, A) The holotype growing on vertical substrate, B) Detail of the pore fields in another specimen, and one oscule as a yellow dot. Scale bars 5 cm.
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