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1,398 results for “shallow waters”
Data from: High dive efficiency in shallow water
<p>Dive studies across mammals, birds, reptiles, and fish often focus on deep dives, and shallow-water diving has tended to be overlooked. For air-breathers, foraging in shallow water poses challenges since the lungs generate buoyancy, and shallow divers must trade off the extent of inhalation against the negative buoyancy needed to avoid floating to the surface. Using high-resolution depth loggers, we addressed this knowledge gap around the ecology of shallow water diving at a foraging site for hawksbill turtles (Eretmochelys imbricata) where depth was typically <3m. Contrary to predictions, dive durations were long, particularly at night (mean dive duration per turtle: 17-61 min, n=12 turtles, n=2576 nocturnal dives), despite warm water temperatures (24-37oC). Dive efficiency (% time submerged) for hawksbills was 98%, the highest recorded for any air-breathing marine vertebrate including penguins (60-78%), seals (51-91%), cetaceans (68-87%), and other sea turtle species (68-95%). Hawksbills usually dive for much longer (42-286% increase) than green and loggerhead turtles when depth and temperature are accounted for. Hawksbill turtles likely forage in very shallow water to reduce predation risk from sharks: of 423 hawksbills captured by hand, none had any evidence of shark attack, although large sharks were present in nearby deeper water. Our results challenge the prediction that shallow water dives by air breathers will usually be short and open the way for comparative studies of the ecology of shallow water diving in a range of other taxa. Our work emphasizes the likely importance of predation risk in shaping patterns of habitat utilisation.</p>
Impacts of hurricanes and disease on Diadema antillarum in shallow water reef and mangrove locations in St John, USVI
<p>Number of Diadema antillarum per 10x2 m2 transect at 9 reef sites and 3 mangrove sites in St John USVI from 2017-2023</p>
Competition for waterborne food resources among tropical shallow-water sponges
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Data from: High dive efficiency in shallow water
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FIGURE 6. Diogenes minimus n in A new species of the hermit crab genus Diogenes Dana, 1851 (Decapoda: Anomura Diogenidae) from shallow coastal waters in Japan
FIGURE 6. Diogenes minimus n. sp., habitus in dorsal view, showing living colouration. A, holotype, ovigerous female (sl 1.3 mm), CBM-ZC 15432; B, paratype, male (sl 1.1 mm), CBM-ZC 15430.
FIGURE 1. Diogenes minimus n in A new species of the hermit crab genus Diogenes Dana, 1851 (Decapoda: Anomura Diogenidae) from shallow coastal waters in Japan
FIGURE 1. Diogenes minimus n. sp., holotype, ovigerous female (sl 1.3 mm), CBM-ZC 15429. A, shield, carapace lateral lobes and cephalic appendages, dorsal view (antennal flagella omitted); B, anterior part of left branchiostegite, lateral view; C, left antennal peduncle, lateral view; D, left antennal flagellum and peduncular article 5, dorsal view; E, left maxilliped 3, lateral view; F, same, ischium and basis, ventral view; G, right pereopod 4, lateral view; H, anterior lobe of thoracic sternite 6, ventral view; I, telson, dorsal view.
FIGURE 5. Diogenes minimus n in A new species of the hermit crab genus Diogenes Dana, 1851 (Decapoda: Anomura Diogenidae) from shallow coastal waters in Japan
FIGURE 5. Diogenes minimus n. sp., holotype, ovigerous female (sl 1.3 mm), CBM-ZC 15429, ambulatory legs. A, right pereopod 2, lateral view; B, same, dactylus, mesial view (only mesial setae illustrated); C, same, carpus, mesial view (setae omitted); D, carpus of left pereopod 2, mesial view (setae omitted); E, left pereopod 3, lateral view; F, same, dactylus, mesial view; G, same, carpus, mesial view.
FIGURE 3. Diogenes minimus n in A new species of the hermit crab genus Diogenes Dana, 1851 (Decapoda: Anomura Diogenidae) from shallow coastal waters in Japan
FIGURE 3. Diogenes minimus n. sp., holotype, ovigerous female (sl 1.3 mm), CBM-ZC 15429, left cheliped. A, chela, outer view; B, same, inner view (only inner setae illustrated); C, same, lower view (setae omitted); D, carpus, outer view; E, carpus, merus, ischium, lateral view; F, same, mesial view.
FIGURE 2. Diogenes minimus n in A new species of the hermit crab genus Diogenes Dana, 1851 (Decapoda: Anomura Diogenidae) from shallow coastal waters in Japan
FIGURE 2. Diogenes minimus n. sp., paratype, male (sl 1.2 mm), CBM-ZC 15430, left cheliped. A, chela and carpus, outer view; B, chela, inner view (only inner setae illustrated); C, merus, lateral view; D, same, mesial view.
FIGURE 4. Diogenes minimus n in A new species of the hermit crab genus Diogenes Dana, 1851 (Decapoda: Anomura Diogenidae) from shallow coastal waters in Japan
FIGURE 4. Diogenes minimus n. sp., holotype, ovigerous female (sl 1.3 mm), CBM-ZC 15429, right cheliped. A, chela, dorsal view; B, entire right cheliped, mesial view; C, carpus, dorsal view; D, carpus and merus, lateral view.
FIGURE 2. A–F. Trindade Island. A. Rocky beach and tide pool. B–F in Asteroidea (Echinodermata) from shallow-waters of the remote oceanic archipelago Trindade and Martin Vaz, southeastern Atlantic, with taxonomic and zoogeographical notes
FIGURE 2. A–F. Trindade Island. A. Rocky beach and tide pool. B–F. Sublittoral habitats at water depths of less than 30 m: B. Calcareous reefs and rhodolith beds. C. Rocky and calcareous boulders of various sizes. D. Sand bottom with patches of calcareous reefs. E. Mixed sand, gravel, rocky bottoms with patches of sponges and macro algae. F. Calcareous reefs with algal mats.
Data for synthetic simulation in "Topography curvature effects in shallow-water models"
<p>Synthetic topographies and initial masses used in "Topography curvature effects in shallow-water models"</p>
FIG. 2. Shallow-water ophiuroids from Peru. A in Revisiting the diversity and distribution of the ophiuroids (Echinodermata Ophiuroidea) from Peru
FIG. 2. Shallow-water ophiuroids from Peru. A, Ophioderma panamense, Isla Foca; B, Ophiocoma aethiops, El Ñuro; C, Ophiolepis crassa, Isla Foca; D, Ophiactis kroeyeri, Melchorita; E, Ophioderma peruanum, El Ñuro; F, Ophionereis annulata, Cancas (field photographs; sizes not recorded; specimens not collected)
A new Changhsingian (Lopingian) brachiopod fauna of the shallow-water clastic-shelf facies from Fujian Province, southeastern China
<p>Although much attention has been paid to Changhsingian brachiopods in South China, there are only two Chinese studies, published in 1979 and 1990, on Changhsingian brachiopods from the southeastern part of South China. Based on systematically collected fossil material, this paper describes and quantitatively analyses a Changhsingian brachiopod fauna from the Luokeng Formation at the Hongtian section, Fujian Province, southeastern China, for the first time. Among the brachiopods (30 species in 18 genera) described and illustrated,<i>Cathaysia yongdingensis </i>Liao and an endemic genus of South China (<i>Qinglongia</i>) are reported in English for the first time. Two new species,<i>Neochonetes</i>(<i>Sommeriella</i>)<i>longa</i>and <i>Neochonetes</i>(<i>Sommeriella</i>)<i>transversa,</i>are also proposed. The Hongtian fauna is mainly composed of <i>Cathaysia </i>(29.4%),<i>Neochonetes </i>(19.3%), <i>Linoproductus</i>(13.5%), <i>Orthothetina</i>(11.7%), and is correlated with the brachiopod fauna from the lower part of the Luokeng Formation in Fujian Province.</p>
Supporting data used in the paper: Xi Chen, 2020, The LMARS based shallow-water dynamical core on generic gnomonic cubed-sphere geometry
<p># Simulation results of the unstaggered shallow water model</p> <p>This repository contains the supporting data used in the paper: Xi Chen, 2020, The LMARS based shallow‐water dynamical core on generic gnomonic cubed‐sphere geometry, DOI: 10.1029/2020MS002280</p> <p><br> Organization of the repository:</p> <p>The tar archive with this data submission has a:</p> <p>doc directory contains a README.md with information regarding naming conventions to label the model configurations for a shallow water test simulation. Additional information can also be found in README.md. Table 4 in the paper provides additional details.</p> <p>The data directory contains the supporting data files (NetCDF format). </p> <p> </p>
FIGURE 32 in Shallow-water black corals (Cnidaria: Anthozoa: Hexacorallia: Antipatharia) from SW Madagascar
FIGURE 32. Cupressopathes sp. 2, INV.131340. (a) In situ picture of the entire colony showing the asymmetry in the cylindrical shape. (b) Close-up view of the distal part of the colony where a branch is growing. (c) Cross section showing the irregular arrangement of the primary pinnules. (d) Lateral view of the pinnulation on a primary pinnule. (e) Top view of the pinnulation of a primary pinnule. (f) Section of subpinnule 0.15 mm in diameter, polypar side is on the right. (g) Section of secondary pinnule 0.34 mm in diameter, polypar side is on the right. (h) Section of primary pinnule 0.85 mm in diameter. (i) Section of branch 2.2 mm in diameter. (j) Polypar spine of subpinnule. (k) Abpolypar spine of subpinnule. (l) Polypar spine of primary pinnule. (m) Needle-like and bifid spines of a branch.
FIGURE 31 in Shallow-water black corals (Cnidaria: Anthozoa: Hexacorallia: Antipatharia) from SW Madagascar
FIGURE 31. Cupressopathes sp. 1, INV.131365. (a) In situ picture of the whole colony. (b) Detailed view of the pinnulation on a distal branch. (c) Cross section of a pinnulated branch showing the arrangement in irregular rows. (d) Lateral view of the scarce subpinnulation of a primary pinnule. (e) Section of subpinnule 0.1 mm in diameter, polypar side is on the right. (f) Section of primary pinnule 0.22 mm in diameter, polypar side is on the right. (g) Section of distal branch 0.27 mm in diameter. (h) Section of branch 1.10 mm in diameter. (i) Abpolypar spine of a subpinnule. (j) Polypar spine of subpinnule. (k) Tall, acicular needle-like spines occurring on thick branches. (l) Bifid spines occurring on a branch.
FIGURE 29 in Shallow-water black corals (Cnidaria: Anthozoa: Hexacorallia: Antipatharia) from SW Madagascar
FIGURE 29. Cupressopathes cf. pumila INV.131366. (a) In situ pictures of the whole colony (b) In situ close-up view of a primary pinnule. (c) Detailed view of the branching pattern and the pinnulation of a distal branch. (d) Cross section of a distal branch showing the arrangement of the primary pinnules in four irregular rows. (e–f) Detailed top views of the pinnulation of two primary pinnules showing the biserial arrangement of the subpinnules and the variation in their density. (g) Section of subpinnule 0.13 mm in diameter, polypar side is on the right. (h) Section of primary pinnule 0.25 mm in diameter, polypar side is on the right. (i–j) Sections of two branches 0.30 mm and 1.30 mm in diameter, respectively. (k) Abpolypar spine of subpinnule. (l) Polypar spine of subpinnule. (m) Polypar spine on primary pinnule. (n) Tall, acicular and needle-like spines occurring on thick branch.
FIGURE 27 in Shallow-water black corals (Cnidaria: Anthozoa: Hexacorallia: Antipatharia) from SW Madagascar
FIGURE 27. Myriopathes sp. INV.131336. (a) In situ picture of the entire colony. (b) Close-up view of a branch and the pinnules. (c) Close-up view showing the pinnulation in details. (d) Section of subpinnule 0.10 mm in diameter, polypar side is on the right. (e) Section of primary pinnule 0.18 mm in diameter, polypar side is on the right. (f) Section of primary pinnule 0.41 mm in diameter, polypar side is on the right. (g) Section of branch 1.8 mm in diameter. (h) Polypar spine of a subpinnule. (i) Abpolypar spine of a subpinnule. (j) Tall, cylindrical spine on a primary pinnule. (k) Needle-like spines of a branch.
FIGURE 26 in Shallow-water black corals (Cnidaria: Anthozoa: Hexacorallia: Antipatharia) from SW Madagascar
FIGURE 26. Myriopathes cf. ulex (Ellis & Solander, 1786) INV.131356. (a) In situ picture of the entire colony. (b) In situ close-up view of a branch and the primary pinnules. (c) Close-up view showing the pinnulation in details. (d) Section of secondary pinnule 0.12 mm in diameter. The polypar side is on the right. (e) Section of primary pinnule 0.14 mm in diameter. The polypar side is on the right. (f) Section of distal fragment of the main branch bearing primary pinnules and measuring 0.25 mm in diameter. (g) Section of thicker branch 0.34 mm in diameter and bearing primary pinnules. (h) Polypar spine from secondary pinnule. (i) Polypar spine from primary pinnule. (j) Tall, needle-like spine of a branch. (k) Branched, bifid or antler-like spines occurring on a branch measuring 1.8 mm in diameter.
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Allen Brain Atlas
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Annotated Behaviour and Observability Dataset (ABODe)
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DANDI Archive for NWB datasets
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International Brain Laboratory public data
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OpenNeuro
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