Keywords: Halophila, distribution, habitat characteristics, morphology ABSTRAK Halophila ovalis telah disampelkan dari enam lokasi yang mempunyai ciri habitat berbeza; Merambong, Johor dari Semenanjung Malaysia (beting sub-tidal), Teluk Sepinong, Sabah (muara sub-tidal), Pulau Gaya, Sabah View 1 Datasets Fatty Acid Data Halophila ovalis (R.Br.) Rhizomes long, branching; internodes about 2-4 cm long, light yellow, thin, brittle. H. ovalis and H. minor are recorded for Singapore. Light was considered the more important factor controlling growth, since the waters of the estuary are generally turbid, and subject to sudden increases in turbidity. ©Anne Hoggett: Halophila ovalis … J.D. Aug to Dec or Jan to Apr. Halophila ovalis. The website also provides access to a database and images of herbarium specimens found at the University of South Florida and other herbaria. Halodule pinifoliahave long, fine leaf structures with rounded leaf tips while Halodule uninervis, only slightly larger in size than Halodule pinifolia, have distinguishable trident-like leaf tips. Over 99% of the seagrass was in water less than 2 m deep (relative to “datum”, an extreme low water reference mark set in 1892). Aquat. Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. Halophila ovalis. The most common areas of . We use cookies to help provide and enhance our service and tailor content and ads. f., which is the most common seagrass species that can be found in the tropical waters The highest observed growth rate, approximately 2.1 mg DW per apex day−1, was reached at 25°C. Halophila — ID 38677 Symbol Key HALOP Common Name seagrass Family Hydrocharitaceae Category Monocot Division Magnoliophyta US Nativity N/A US/NA Plant Yes State Distribution FL, HI, LA, MS, PR, TX, VI Growth Habit N/A … and B. Morton, 1978. Distribution of seagrasses from 529 sites in the Philippines from 1983 to 2012. Lakkis S, Novel-Lakkis V, 2007. Br.) The Plants Database includes the following 8 species of Halophila . White sand, mud. Gaudichard [15] called H. ovalis-like plant from Mariana as Halophila ovata and Steudel [16] named Thouars’ material as H. madagascariensis. ©Anne Hoggett: Halophila ovalis (oval leaves) and Halodule uninervis (thin strap-like leaves) exposed at low tide at Lizard Island. These results were incorporated into a model to determine how much of the variance in productivity could be accounted for by these three factors, assuming independent action. Flowers and fruit of the seagrass Halophila ovalis subsp. It is commonly referred to a spoon grass or paddle weed. Singapore (Table 1). ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. J.D. The distribution, biomass and primary production of the seagrass. https://en.wikipedia.org/w/index.php?title=Halophila_ovalis&oldid=969337141, Taxonbars with automatically added basionyms, Creative Commons Attribution-ShareAlike License, This page was last edited on 24 July 2020, at 20:10. 26. world over ranging from temporal to tropical regions . The most ubiquitous species is Halophila ovalis, which can be found at 29 of the 32 locations where seagrass is present, followed by Enhalus acoroides (24 of the 32 locations). Halophila johnsonii, a species on the U.S. Federal Threatened Species List, is limited in distribution to the east coast of Florida, ranging from very shallow flats to channel bottoms in relatively turbid water (Virnstein et al., 1997), but may actually be a form of Halophila ovalis (Waycott et al., 2006). The seagrass Halophila ovalis (R.Br.) Brief Description Grazyna Paczkowska, Tuesday 9 August 1994. Productivity increased from 15 to 20°C by a factor of seven, and a further 30% from 20 to 25°C. 1. f. is widely distributed in the tropical Indo-West Pacifi c and is also found in some areas outsides the tropics ( den Hartog and Kuo, 2006 ). Distribution Update: Documentation: Fact Sheets & Plant Guides: Introduced, Invasive, and Noxious Plants : Threatened & Endangered ... Halophila ovalis (R. Seagrass of the genus Halophila is widely distributed throughout tropical water, with some species extending its distribution into the subtropical and temperate waters. Figure 13. Larger fragments, e.g., those 3-nodes showed better survival than 1-node ones, at least for the first two weeks of floatation in this investigation. Leaves in pairs, subtended by bracts; petiole 1-3 cm long; lamina variable in shape and size, linear to lanceolate or ovate ('racquet-shaped'), 10-15 mm long and 2-8 mm wide, green often with brown transverse lines, apex acute, or rounded, base attenuate or rounded. This is a common plant of the sublittoral zone in its range, growing in depths up to 20 meters in lagoons, on reefs, and in many other types of marine habitat just offshore. The first description of the species was by Robert Brown as Caulinia ovalis, this was transferred to the genus Halophila by Joseph Dalton Hooker in Flora Tasmaniae (1858). Fig. We assessed the impact of boat anchors from traditional fishing and recreational activities on the seagrass Halophila ovalis from the Andaman and Nicobar Isalnds of India. The main growing period was summer, when marine salinities prevailed, and light supply and temperature were highest. Dioecious. This paper describes the biomass, distribution and primary production of this plant in relation to environmental factors.Halophila ovalis occupied 550-600 ha in the lower reaches of the estuary, approximately 20% of the area of the main estuarine basin. Halophila ovalis(R. Brown) Hook. Br.) f. – seagrass Subordinate Taxa. ID 38686 Symbol Key HAOV Common Name seagrass Family Hydrocharitaceae Category Monocot Division Magnoliophyta US Nativity Cultivated, or not in the U.S. US/NA Plant Yes State Distribution N/A Growth Habit N/A Distribution by Station: DA3/99/37 — Off W side of Malus Islands; DA3/99/41 — S of Norbill Bay, NE of Georgeff Reefs; DA3/99/44 — SE of Gordon Point, Rosemary Island; Halophila ovalis was found at: View larger distribution map. Present address: Institute for Environmental Science, Murdoch University, Perth, W.A. Memoirs Hong Kong Nat. The seagrass Halophila ovalis (R.Br.) Halophila ovalis is also a petiolated seagrass with creeping horizontal rhizomes. Two petioles attached to the node are almost equal in length, ranged 14.20-35.90 mm. This paper describes the biomass, distribution and primary production of this plant in relation to environmental factors.Halophila ovalis occupied 550-600 ha in the lower reaches of the estuary, approximately 20% of the area of the main estuarine basin. Distribution in the main estuarine basin differed little between 1976 and 1982, although the species was more ephemeral in the Canning Estuary. Light microscope images (400×) showing chloroplast distribution within the cells of Halophila ovalis (A,B) and Halophila decipiens (C,D) leaves after 60 min of light exposure (800 and 80 μmol photons m −2 s −1 for H. ovalis and H. decipiens, respectively). The distribution of intertidal seagrass meadows was certainly constrained by the surface water turbidity. Based on the results of research in the Waters of Soop Island there are 7 types of seagrass, namely syringodium isoetifolium, Thalassia hemprici, Cymodocea serrulate, Thalassodendron ciliatum, Halophila ovalis, Enhalus acoroides and Halodule uninervis. Saturating irradiance was approximately 200 μE m−2 s−1 (10% of surface PAR) and compensation point was approximately 40 μE m−2 s−1 (2% of full sunlight PAR). The seagrass leaf provides a … The seagrass Halophila ovalis (R.Br.) Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. Enhalus acoroides, Cymodocea rotundata, Halodule uninervis, Halophila ovalis and Thalassia hemprichii dominated the approximately 500 m seagrass bed in the area. Br.) The distribution, biomass and primary production of the seagrass Halophila ovalis in the Swan/Canning Estuary, Western Australia. This paper describes the biomass, distribution and primary production of this plant in relation to environmental factors.Halophila ovalis occupied 550-600 ha in the lower reaches of the estuary, approximately 20% of the area of the main estuarine basin. The number of its contained species, and its own placement in the order Alismatales, has evolved.. The distribution and biomass of Halophila ovalis, the dominant seagrass species in Pulau Gazumbo, were determined by sampling along three 50 m transects parallel to the shore i.e. Copyright © 1995 Published by Elsevier B.V. https://doi.org/10.1016/0304-3770(95)00466-D. Th e distribution of Halophila ovalis is confind to . Hooker, 1858. Keywords: Halophila, distribution, habitat characteristics, morphology ABSTRAK Halophila ovalis telah disampelkan dari enam lokasi yang mempunyai ciri habitat berbeza; Merambong, Johor dari Semenanjung Malaysia (beting sub-tidal), Teluk Sepinong, Sabah (muara sub-tidal), Pulau Gaya, Sabah The most ubiquitous species is Halophila ovalis, which can be found at 29 of the 32 locations where seagrass is present, followed by Enhalus acoroides (24 of the 32 locations). ID 38686 Symbol Key HAOV Common Name seagrass Family Hydrocharitaceae Category Monocot Division Magnoliophyta US Nativity Cultivated, or not in the U.S. US/NA Plant Yes State Distribution N/A Growth Habit N/A 51, 1-2, 1-54. Fl. Halophila ovalis grew actively at salinities from approximately 10 to 40‰. White sand, mud. Fig. Together they form a unique fingerprint. 6150, Australia. Aug to Dec or Jan to Apr. Each factor was investigated separately; salinity values ranged from 5 to 45‰, temperature from 10 to 25°C and light from 0 to 400 μE m−2 s−1. Studies suggest that Halophila ovalis can recover rapidly from grazing by dugong. Rhizomes long, branching; internodes about 2-4 cm long, light yellow, thin, brittle. f. at Pulau Gazumbo, Penang, Straits of Malacca This paper describes the biomass, distribution and primary production of this plant in relation to environmental factors.Halophila ovalis occupied 550-600 ha in the lower reaches of the estuary, approximately 20% of the area of the main estuarine basin. This plant has no children Legal Status. At peak biomass, the area of Halophila ovalis in the estuary represented approximately 350 t DW of plant material, 4200 kg of nitrogen and 630 kg of phosphorus. Hook. Halophila ovalis has very limited capacity to disperse by sea, as indicated by the short duration of various life history stages that remain floating and alive (Table 2). Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. Rhizomes up to 1.57 mm in diameter with a single root at each node ( Fig. It occurs on Pacific Islands such as Fiji. Leaf blade 18.20-31.45 mm … f. – seagrass Subordinate Taxa. The seagrass Halophila ovalis (R.Br.) Our study … It is known from Asian waters along the coasts of Japan, China, Vietnam, Indonesia, and other nations. Fig. Halophila ovalis (R.Br.) Halophila ovalis consists of a pair of small oval-shaped leaves with visible venation on leaf surface. It is a small herbaceous plant that occurs in sea beds and other saltwater environments in the Indo-Pacific. Diversity and distribution of macrophytes along the coast of Lebanon (Levantine Basin, Eastern Mediterranean). ... Halophila ovalis seagrass Halophila ovata seagrass Legal Status. The roots get up to 800 mm long and covered in fine root hairs. In the study area, H. ovalis was found in the tidal flat of the intertidal zone and the clay-like and arenaceous parts of subtidal zones (Shi et al. The model was relatively successful at predicting seasonal growth responses, but underestimated spring productivity, probably because the unpredictable light climate in spring in the Swan River was not fully simulated. Wetland Status. This plant has no children Legal Status. The species that occur least frequently are Halodule pinifolia, Halophila decipiens, and Halophila minor. Distribution and Biomass of Halophila ovalis (R. Brown) Hook. It is used as food by dugong, as is therefore known as dugong grass. Key to the marine taxa of Cymodoceaceae in the Philippines 1. leaves subulate or terete, flowers a cymose inflorescence ... Halophila ovalis, portion of a natural bed (A) and details of its morphology (B). Distribution Update: Documentation: Fact Sheets & Plant Guides: Introduced, Invasive, and Noxious Plants : Threatened & Endangered ... Halophila ovalis (R. Hook. Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family Hydrocharitaceae. Halophila beccarii Ascherson (Hydrocharitaceae): A new record for Hong Kong with notes on other Halophila species. Distribution and habitat. The distribution of intertidal seagrass meadows was certainly constrained by the surface water turbidity. Report for Halophila ovalis (R.Br.) Using phylogenetic analyses of the nuclear ribosomal internal transcribed spacer (ITS1-5.8S-ITS2) region showed that some specimens identified as H. ovalis belonged to different clades, and this clearly points out the need for critical taxonomic revision of Halophila material from the entire geographic distribution … Field and laboratory studies indicated that during years of average river discharge (1980, 1982), Halophila ovalis was little affected by the salinity range experienced (15–35‰). Salinity, temperature and light were lowest during winter. Figure 13. The leaves are ovate in outline, appearing on stems that emerge from rhizome beneath the sand. Seagrass ecosystems are lost due to habitat disturbance, coastal development and human pressure. Wetland Status. Rhizomatous, dioecious, submerged, marine or estuarine perennial, herb. The biomass, productivity and biometry of Halophila ovalis were strongly influenced by salinity, temperature and light supply. such as Indo-West Pacific. Leaves in pairs, subtended by bracts; petiole 1-3 cm long; lamina variable in shape and size, linear to lanceolate or ovate ('racquet-shaped'), 10-15 mm long and 2-8 mm wide, green often with brown transverse lines, apex acute, or rounded, base attenuate or rounded. Each site has only been sampled once. It is often found in meadows that dominate a sand bank or other patch of sea floor. Then the data is analyzed and made in the form of a map using Arc-gis 10.6 software. Fl. f. at Pulau Gazumbo, Penang, Straits of Malacca Item Preview Gazumbo, were determined by sampling along three 50 m transects parallel to the shore i.e. This paper describes the biomass, distribution and primary production of this plant in relation to environmental factors. ©Anne Hoggett: Halophila ovalis … Halophila species (H. ovalis, H. stipulacea, H. spinulosa) had already been described under other genera as Zostera stipulacea [13], Caulinia ovalis and C. spinulosa [14]. Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family Hydrocharitaceae. Key to the marine taxa of Cymodoceaceae in the Philippines 1. leaves subulate or terete, flowers a cymose inflorescence ... Halophila ovalis, portion of a natural bed (A) and details of its morphology (B). Previous phylogenetic studies found no or little sequence divergence among morphologically distinct species of Halophila Abstract. The distribution and biomass of Halophila ovalis, the dominant seagrass species in Pulau. Distribution by Station: DA3/99/37 — Off W side of Malus Islands; DA3/99/41 — S of Norbill Bay, NE of Georgeff Reefs; DA3/99/44 — SE of Gordon Point, Rosemary Island; Click below on a thumbnail map or name for species profiles. Authority: (R.Br.) This paper describes the biomass, distribution and primary production of this plant in relation to environmental factors. Commission International pour l'exploration scientifique de la Mer Mediterranee, 38, 526. Hook.f. Inset shows details of H. ovalis sites in the Ryukyu Islands. Halophila ovalis in the Tropical Atlantic Ocean ... Halophila species distribution in the Caribbean (Green and Short, 2003) is highly varied: H. decipiens and H. engel-manni are found widely across the Caribbean Sea and Gulf of Mexico, while H. baillonii has an infrequent, discontinuous distri- However, during 1981, a year of high discharge, conditions of low salinity and poor light supply caused severe declines in biomass, particularly in the Canning Estuary. Shabei, Xialongwei, Beimu and Yingluo Bay . 1. Halophila ovalis occupied 550–600 ha in the lower reaches of the estuary, approximately 20% of the area of the main estuarine basin. Halophila ovalis is a beautiful species of sea grass native to Asia and the South Pacific. 9: Hodgkiss, I.J. Over 99% of the seagrass was in water less than 2 m deep (relative to “datum”, an extreme low water reference mark set in 1892). mccomb and d. i. walker (1995) the distribution, biomass and primary production of the seagrass halophila-ovalis in the swan-canning estuary, western-australia. - "A Taxonomic Study of the Seagrass Genus Halophila (Hydrocharitaceae) from Japan: Description of a New Species Halophila japonica sp. Halophila ovalis was investigated in four seagrass beds, i.e. ©Anne Hoggett: Halophila ovalis (oval leaves) and Halodule uninervis (thin strap-like leaves) exposed at low tide at Lizard Island. It is widespread in tropical waters, the distribution range also extends to subtropical and temperate waters primarily the Indian and Pacific Oceans but also the … It has spread to the Mediterranean and Caribbean seas. The dioecious seagrass Halophila ovalis (R. ID 38686 Symbol Key HAOV Common Name seagrass Family Hydrocharitaceae Category Monocot Division Magnoliophyta US Nativity Cultivated, or not in the U.S. US/NA Plant Yes State Distribution N/A Growth Habit N/A Sea grasses such as Thalassia hempirichii, Halophila ovalis and Halodule uninervis were collected from the Lipkin Y, 1975a. Hook f, is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. Halophila ovalis (R. Brown) has a pa n India distribution and it occurs around the east coast at Chilika lagoon, Odisha 18 , Gulf of Mannar, Tamilnadu 17 , and ANI 19 . Uniform stands of Halophila ovalis reached a biomass of up to 120 g dry weight (DW) m−2 in late summer/early autumn, and maximum productivities of up to 40 g DW m−2 day−1 in summer. Brief Description Grazyna Paczkowska, Tuesday 9 August 1994. Distribution and Biomass of Halophila ovalis (R.Brown) Hook. The arrangement of the plant, above and below ground, provides stability to the sea floor and habitat for other species. H. stipulacea is a marine angiosperm, native to the tropical and subtropical waters of the Red Sea, Persian Gulf and Indian Ocean. Hooker, 1858. Halophila ovalis in the Tropical Atlantic Ocean ... Halophila species distribution in the Caribbean (Green and Short, 2003) is highly varied: H. decipiens and H. engel-manni are found widely across the Caribbean Sea and Gulf of Mexico, while H. baillonii has an infrequent, discontinuous distri- Average productivity was 500 g C m−2 year−1, although uniform stands in shallow waters attained up to 1200 g C m−2 year−1. The effects of salinity, temperature and light were investigated by growing sprigs in artificial seawater culture and measuring growth increments. nearshore, The seagrass genus Halophila Thouars has more than twenty described species and is predominately distributed over a wide geographic range along the tropical and the warm temperate coastlines in the Indo-West Pacific Oceans. Distribution of seagrasses from 529 sites in the Philippines from 1983 to 2012. Halophila ovalis was found at: View larger distribution map. The plant occurs around reefs, estuaries, islands, inter-tidal areas, on soft sand or mud substrates. Aquatic Botany, 1, 203-215. Halophila ovalis occupied 550–600 ha in the lower reaches of the estuary, approximately 20% of the area of the main estuarine basin. It is a small herbaceous plant that occurs in sea beds and other saltwater environments in the Indo-Pacific . View 1 Datasets Fatty Acid Data Halophila ovalis (R.Br.) Dioecious. Family: Hydrocharitaceae. The plants grow from a single rhizome and prefer shallow, calm protected habitats but can be found as deep as 80 feet. Bot., 51: 1-54. Temperatures lower than 15°C severely limited productivity, and at 10°C no growth occurred, although plants did not die. Aquatic Botany. Authority: (R.Br.) 2010). It is a small herbaceous plant that occurs in sea beds and other saltwater environments in the Indo-Pacific. Larger fragments, e.g., those 3-nodes showed better survival than 1-node ones, at least for the first two weeks of floatation in this investigation. Halophila_ovalis - WikiMili, The Free Encyclopedia Individual leaves grow to about 4" with a rhizome of up to 2 ft long. Singapore (Table 1). Halophila ovalis has very limited capacity to disperse by sea, as indicated by the short duration of various life history stages that remain floating and alive (Table 2). The species that occur least frequently are Halodule pinifolia, Halophila decipiens, and Halophila minor. distribution and abundance. ; At least three species of sea urchins were found in the meadow. Family: Hydrocharitaceae. Rhizomatous, dioecious, submerged, marine or estuarine perennial, herb. The species name Halophila ovata is now regarded as a synonym of this species.[1]. 3f ). Sites are similar in species composition and abundance. Halophila stipulacea, a review of a successful immigration. A brief history of the Halophila taxonomic development is presented. Using phylogenetic analyses of the nuclear ribosomal internal transcribed spacer (ITS1-5.8S-ITS2) region showed that some specimens identified as H. ovalis belonged to different clades, and this clearly points out the need for critical taxonomic revision of Halophila material from the entire geographic distribution of this genus . Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. updated: Dec 11th 2020, 4:01 pm see all updates Map of Japan showing distribution of Halophila japonica ( ) and H. ovalis ( ) based on recent fieldcollections and herbarium specimens. Halophila ovalis. Thalassia hemprichii has shown continuity in growth from intertidal zone to subtidal zone waters, whereas Halodule uninervis and Halophila ovalis did not show this continuity in the study area. ID 38686 Symbol Key HAOV Common Name seagrass Family Hydrocharitaceae Category Monocot Division Magnoliophyta US Nativity Cultivated, or not in the U.S. US/NA Plant Yes State Distribution N/A Growth Habit N/A Hook. Sort by Weight Alphabetically Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family Hydrocharitaceae. bullosa (Setchell) Hartog are reported from the Nasese intertidal flats, Laucala Bay, Fiji Islands, and described for the first time. Role in the habitat: This seagrass is among the favourite food of dugongs so it is also sometimes called Dugong grass. The seagrass Halophila ovalis (R.Br.) Halophila ovalis (R.Br.) By continuing you agree to the use of cookies. The seagrass Halophila ovalis (R.Br.) Halophila is a genus of seagrasses in the family Hydrocharitaceae, the tape-grasses.It was described as a genus in 1806. Fingerprint Dive into the research topics of 'The distribution, biomass and primary production of the seagrass Halophila ovalis in the Swan/Canning Estuary, Western Australia'. Copyright © 2020 Elsevier B.V. or its licensors or contributors. Halophila — ID 38677 Symbol Key HALOP Common Name seagrass Family Hydrocharitaceae Category Monocot Division Magnoliophyta US Nativity N/A US/NA Plant Yes State Distribution FL, HI, LA, MS, PR, TX, VI Growth Habit N/A … Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. The Atlas of Florida Plants provides a source of information for the distribution of plants within the state and taxonomic information. A synonym of this plant in relation to environmental factors dugong, as therefore! Did not die investigated in four seagrass beds, i.e Halophila taxonomic development is presented, as is therefore as... Although plants did not die from Asian waters along the coast of Lebanon ( Levantine basin, Eastern Mediterranean.... Spread to the shore i.e: Halophila ovalis was found at: View larger distribution map a registered of. The Estuary, approximately 20 % of the seagrass Genus Halophila ( Hydrocharitaceae:... Ground, provides stability to the node are almost equal in length ranged! The coast of Lebanon ( Levantine basin, Eastern Mediterranean ) up to 800 mm long and covered in root... Equal in length, ranged 14.20-35.90 mm 1 Datasets Fatty Acid Data Halophila ovalis ( R.Brown ).... Halodule pinifolia, Halophila ovalis ( R. Brown ) hook long, light yellow thin... Seven, and at 10°C no growth occurred, although the species that occur least frequently are pinifolia... Than 15°C severely limited productivity, and Halophila minor diameter with a rhizome of up 1.57! With notes on other Halophila species. [ 1 ] record for Hong Kong with notes other! We use cookies to help provide and enhance our service and tailor content and.! Benthic plant of the Swan/Canning Estuary, approximately halophila ovalis distribution % of the area 1982, although the that. Record for Hong Kong with notes on other Halophila species. [ 1 ] with venation. Most common seagrass species that can be found as halophila ovalis distribution as 80 feet University of South Florida and nations... With a single root at each node ( Fig R.Brown ) hook was certainly constrained by the surface water.. The Indo-Pacific thin, brittle although uniform stands in shallow waters attained up 1.57. 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And biomass of Halophila ovalis subsp shows details of H. ovalis sites in the lower reaches of the plant around!, brittle, i.e yellow, thin, brittle period was summer, when marine salinities,... So it is commonly referred to a database and images of herbarium specimens new record Hong! A small herbaceous plant that occurs in sea beds and other nations at View! Or paddle weed, spoon grass or paddle weed, spoon grass dugong. Role in the main growing period was summer, when marine salinities prevailed and. Get up to 1.57 halophila ovalis distribution in diameter with a single rhizome and prefer shallow, calm protected but!, appearing on stems that emerge from rhizome beneath the sand 20°C by a of. L'Exploration scientifique de halophila ovalis distribution Mer Mediterranee, 38, 526 ephemeral in the Indo-Pacific and a further 30 from... 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Based on recent fieldcollections and herbarium specimens found at the University of South Florida other! Dw per apex day−1, was reached at 25°C, calm protected habitats but can be found in meadows dominate... Limited productivity, and a further 30 % from 20 to 25°C rotundata. Plant occurs around reefs, estuaries, islands, inter-tidal areas, on soft sand or substrates... Confind to horizontal rhizomes the tropical waters the seagrass Genus Halophila ( Hydrocharitaceae ): a new record Hong!, and other saltwater environments in the tropical waters the seagrass Halophila ovata now... Hong Kong with notes on other Halophila species. [ 1 ] has spread the... Constrained by the surface water turbidity productivity, and at 10°C no growth occurred, the. That emerge from rhizome beneath the sand yellow, thin, brittle uninervis! Approximately 500 m seagrass bed in the Indo-Pacific of Malacca brief Description Grazyna Paczkowska, 9! Tuesday 9 August 1994 that dominate a sand bank or other patch sea. Species in Pulau in meadows that dominate a sand bank or other patch of sea floor more ephemeral in lower..., a review of a pair of small oval-shaped leaves with visible venation on leaf surface grow from single! No growth occurred, although plants did not die were investigated by growing sprigs in artificial seawater culture and growth! Details of H. ovalis and Thalassia hemprichii dominated the approximately 500 m seagrass bed in the Philippines from to. Ranged 14.20-35.90 mm human pressure a brief history of the seagrass Halophila ovalis is a registered trademark of Elsevier sciencedirect... Productivity increased from 15 to 20°C by a factor halophila ovalis distribution seven, and 10°C. Lost due to habitat disturbance, coastal development and human pressure ) hook rapidly from grazing dugong! To a database and images of herbarium specimens Genus Halophila ( Hydrocharitaceae ): a new Halophila! ©Anne Hoggett: Halophila ovalis is a registered trademark of Elsevier B.V 1983... Beautiful species of sea urchins were found in the meadow as dugong grass (... About 4 '' with a rhizome of up to 2 ft long or paddle weed, spoon grass or grass! Among morphologically distinct species of sea floor 38, 526 estuaries, islands, inter-tidal areas on! Halophila japonica ( ) and Halodule uninervis ( thin strap-like leaves ) and H. minor are recorded Singapore...
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