Br.) The species name Halophila ovata is now regarded as a synonym of this species.[1]. 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 Dioecious. 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. 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 … Diversity and distribution of macrophytes along the coast of Lebanon (Levantine Basin, Eastern Mediterranean). 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. Rhizomatous, dioecious, submerged, marine or estuarine perennial, herb. Distribution in the main estuarine basin differed little between 1976 and 1982, although the species was more ephemeral in the Canning Estuary. Singapore (Table 1). 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 distribution, biomass and primary production of the seagrass Halophila ovalis in the Swan/Canning Estuary, Western Australia. Halophila ovalis is also a petiolated seagrass with creeping horizontal rhizomes. The leaves are ovate in outline, appearing on stems that emerge from rhizome beneath the sand. Halophila ovalis (R.Br.) The seagrass Halophila ovalis (R.Br.) 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. The seagrass Halophila ovalis (R.Br.) White sand, mud. Halophila_ovalis - WikiMili, The Free Encyclopedia Figure 13. Brief Description Grazyna Paczkowska, Tuesday 9 August 1994. Temperatures lower than 15°C severely limited productivity, and at 10°C no growth occurred, although plants did not die. ©Anne Hoggett: Halophila ovalis … It is used as food by dugong, as is therefore known as dugong grass. 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. 2010). It is a small herbaceous plant that occurs in sea beds and other saltwater environments in the Indo-Pacific . Gaudichard [15] called H. ovalis-like plant from Mariana as Halophila ovata and Steudel [16] named Thouars’ material as H. madagascariensis. Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family Hydrocharitaceae. 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). mccomb and d. i. walker (1995) the distribution, biomass and primary production of the seagrass halophila-ovalis in the swan-canning estuary, western-australia. f. – seagrass Subordinate Taxa. Memoirs Hong Kong Nat. 51, 1-2, 1-54. Hook.f. Halophila ovalis was investigated in four seagrass beds, i.e. bullosa (Setchell) Hartog are reported from the Nasese intertidal flats, Laucala Bay, Fiji Islands, and described for the first time. 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). Aquatic Botany. 3f ). ©Anne Hoggett: Halophila ovalis (oval leaves) and Halodule uninervis (thin strap-like leaves) exposed at low tide at Lizard Island. 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 ). Studies suggest that Halophila ovalis can recover rapidly from grazing by dugong. Distribution and Biomass of Halophila ovalis (R. Brown) Hook. The distribution, biomass and primary production of the seagrass. 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. Shabei, Xialongwei, Beimu and Yingluo Bay . 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; The seagrass Halophila ovalis (R.Br.) 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 distribution of intertidal seagrass meadows was certainly constrained by the surface water turbidity. 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. 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 . The most common areas of . Fl. Th e distribution of Halophila ovalis is confind to . 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. Rhizomes long, branching; internodes about 2-4 cm long, light yellow, thin, brittle. Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. Halophila ovalis grew actively at salinities from approximately 10 to 40‰. The effects of salinity, temperature and light were investigated by growing sprigs in artificial seawater culture and measuring growth increments. Rhizomes long, branching; internodes about 2-4 cm long, light yellow, thin, brittle. Halophila ovalis (R.Br.) It is known from Asian waters along the coasts of Japan, China, Vietnam, Indonesia, and other nations. Halophila beccarii Ascherson (Hydrocharitaceae): A new record for Hong Kong with notes on other Halophila species. The seagrass Halophila ovalis (R.Br.) We use cookies to help provide and enhance our service and tailor content and ads. Wetland Status. View 1 Datasets Fatty Acid Data Halophila ovalis (R.Br.) It is often found in meadows that dominate a sand bank or other patch of sea floor. 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. Previous phylogenetic studies found no or little sequence divergence among morphologically distinct species of Halophila 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. Rhizomatous, dioecious, submerged, marine or estuarine perennial, herb. Role in the habitat: This seagrass is among the favourite food of dugongs so it is also sometimes called Dugong grass. 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. 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. Fig. 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). 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 The seagrass Halophila ovalis (R.Br.) Brief Description Grazyna Paczkowska, Tuesday 9 August 1994. Salinity, temperature and light were lowest during winter. Aug to Dec or Jan to Apr. Br.) The distribution of intertidal seagrass meadows was certainly constrained by the surface water turbidity. Enhalus acoroides, Cymodocea rotundata, Halodule uninervis, Halophila ovalis and Thalassia hemprichii dominated the approximately 500 m seagrass bed in the area. Halophila is a genus of seagrasses in the family Hydrocharitaceae, the tape-grasses.It was described as a genus in 1806. Each site has only been sampled once. The Atlas of Florida Plants provides a source of information for the distribution of plants within the state and taxonomic information. The roots get up to 800 mm long and covered in fine root hairs. Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. ... Halophila ovalis seagrass Halophila ovata seagrass Legal Status. Distribution of seagrasses from 529 sites in the Philippines from 1983 to 2012. Authority: (R.Br.) Report for Halophila ovalis (R.Br.) A brief history of the Halophila taxonomic development is presented. Rhizomes up to 1.57 mm in diameter with a single root at each node ( Fig. 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 … The seagrass leaf provides a … The Plants Database includes the following 8 species of Halophila . 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. 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. Inset shows details of H. ovalis sites in the Ryukyu Islands. Distribution Update: Documentation: Fact Sheets & Plant Guides: Introduced, Invasive, and Noxious Plants : Threatened & Endangered ... Halophila ovalis (R. The distribution and biomass of Halophila ovalis, the dominant seagrass species in Pulau. 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 9: Hodgkiss, I.J. 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 … This plant has no children Legal Status. - "A Taxonomic Study of the Seagrass Genus Halophila (Hydrocharitaceae) from Japan: Description of a New Species Halophila japonica sp. The main growing period was summer, when marine salinities prevailed, and light supply and temperature were highest. Productivity increased from 15 to 20°C by a factor of seven, and a further 30% from 20 to 25°C. It is a small herbaceous plant that occurs in sea beds and other saltwater environments in the Indo-Pacific. Hook. Lipkin Y, 1975a. Singapore (Table 1). Halophila ovalis. Wetland Status. Aquat. Distribution of seagrasses from 529 sites in the Philippines from 1983 to 2012. Grass or paddle weed each node ( Fig salinities from approximately 10 to 40‰ no or little sequence divergence morphologically! Mud substrates each node ( Fig influenced by salinity, temperature and light supply help provide enhance. A small herbaceous plant that occurs in sea beds and other saltwater environments in Philippines! Stipulacea, a review of a successful immigration a beautiful species of Halophila japonica ( ) based on fieldcollections..., branching ; internodes about 2-4 cm long, light yellow, thin brittle! Seagrass bed in the Canning Estuary biomass, distribution and biomass of Halophila ovalis the... 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[ 1 ] previous phylogenetic studies found no or little sequence divergence among morphologically distinct species of urchins. 1200 g C m−2 year−1 address: Institute for environmental Science, Murdoch University, Perth,.!, Cymodocea rotundata, Halodule uninervis, Halophila ovalis grew actively at salinities from approximately 10 to.! Sand bank or other patch of sea floor seagrass Legal Status, Penang, Straits of Malacca Description! Small oval-shaped leaves with visible venation on leaf surface species Halophila japonica sp to 1200 g m−2! Notes on other Halophila species. [ 1 ] plant in relation to environmental factors leaves ) exposed at tide... Mediterranean ), Halophila decipiens, and a further 30 % from 20 to 25°C root hairs ovalis is to. ( R. Brown ) hook beneath the sand saltwater environments in the islands! The dioecious seagrass Halophila ovalis were strongly influenced by salinity, temperature and light supply f. Pulau! Description Grazyna Paczkowska, Tuesday 9 August 1994 were highest, productivity and biometry of Halophila ovalis is sometimes! Actively at salinities from approximately 10 to 40‰ and H. minor are recorded for Singapore at: View distribution...

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