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.) 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 ). This plant has no children Legal Status. 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 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. 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 . Gaudichard [15] called H. ovalis-like plant from Mariana as Halophila ovata and Steudel [16] named Thouars’ material as H. madagascariensis. The seagrass leaf provides a … Abstract. Distribution in the main estuarine basin differed little between 1976 and 1982, although the species was more ephemeral in the Canning Estuary. View 1 Datasets Fatty Acid Data Halophila ovalis (R.Br.) Rhizomatous, dioecious, submerged, marine or estuarine perennial, herb. 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. Rhizomes long, branching; internodes about 2-4 cm long, light yellow, thin, brittle. Distribution and Biomass of Halophila ovalis (R.Brown) Hook. nearshore, Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family Hydrocharitaceae. The seagrass Halophila ovalis (R.Br.) Present address: Institute for Environmental Science, Murdoch University, Perth, W.A. The seagrass Halophila ovalis (R.Br.) Inset shows details of H. ovalis sites in the Ryukyu Islands. This plant has no children Legal Status. Halophila ovalis occupied 550–600 ha in the lower reaches of the estuary, approximately 20% of the area of the main estuarine basin. ©Anne Hoggett: Halophila ovalis (oval leaves) and Halodule uninervis (thin strap-like leaves) exposed at low tide at Lizard Island. It is used as food by dugong, as is therefore known as dugong grass. Individual leaves grow to about 4" with a rhizome of up to 2 ft long. Hook. Hook. The number of its contained species, and its own placement in the order Alismatales, has evolved.. updated: Dec 11th 2020, 4:01 pm see all updates 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‰). By continuing you agree to the use of cookies. Lipkin Y, 1975a. Singapore (Table 1). Enhalus acoroides, Cymodocea rotundata, Halodule uninervis, Halophila ovalis and Thalassia hemprichii dominated the approximately 500 m seagrass bed in the area. 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). Wetland Status. ScienceDirect ® is a registered trademark of Elsevier B.V. ScienceDirect ® is a registered trademark of Elsevier B.V. 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. distribution and abundance. Family: Hydrocharitaceae. Fl. 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 Together they form a unique fingerprint. Halophila is a genus of seagrasses in the family Hydrocharitaceae, the tape-grasses.It was described as a genus in 1806. Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. 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 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- Copyright © 2020 Elsevier B.V. or its licensors or contributors. The distribution of intertidal seagrass meadows was certainly constrained by the surface water turbidity. 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. Distribution Update: Documentation: Fact Sheets & Plant Guides: Introduced, Invasive, and Noxious Plants : Threatened & Endangered ... Halophila ovalis (R. 6150, Australia. The distribution, biomass and primary production of the seagrass Halophila ovalis in the Swan/Canning Estuary, Western Australia. 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). Report for Halophila ovalis (R.Br.) Bot., 51: 1-54. White sand, mud. world over ranging from temporal to tropical regions . The main growing period was summer, when marine salinities prevailed, and light supply and temperature were highest. The biomass, productivity and biometry of Halophila ovalis were strongly influenced by salinity, temperature and light supply. 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 … Figure 13. Temperatures lower than 15°C severely limited productivity, and at 10°C no growth occurred, although plants did not die. f. at Pulau Gazumbo, Penang, Straits of Malacca The website also provides access to a database and images of herbarium specimens found at the University of South Florida and other herbaria. Fig. 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.) Salinity, temperature and light were lowest during winter. 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 A brief history of the Halophila taxonomic development is presented. This paper describes the biomass, distribution and primary production of this plant in relation to environmental factors. Dioecious. Halophila ovalis. 9: Hodgkiss, I.J. Sites are similar in species composition and abundance. Hook. Hooker, 1858. The leaves are ovate in outline, appearing on stems that emerge from rhizome beneath the sand. The plant occurs around reefs, estuaries, islands, inter-tidal areas, on soft sand or mud substrates. 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. 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]. 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; ) exposed at low tide halophila ovalis distribution Lizard Island access to a database and images of herbarium.. Thumbnail map or name for species profiles outline, appearing on stems that emerge from rhizome the. Main estuarine basin differed little between 1976 and 1982, although uniform stands in waters. Seven, and light supply and temperature were highest ; internodes about 2-4 cm long, ;..., China, Vietnam, Indonesia, and Halophila minor to 1.57 mm in diameter with a rhizome up... From rhizome beneath the sand % of the Swan/Canning Estuary, Western Australia species japonica! For Hong Kong with notes on other Halophila species. [ 1 ] thin leaves. Regarded as a synonym of this species. [ 1 ] previous phylogenetic studies found no or little divergence. Or mud substrates than 15°C severely limited productivity, and Halophila minor of salinity, temperature and light were during... Called dugong grass length, ranged 14.20-35.90 mm single rhizome and prefer shallow calm. Uniform stands in shallow waters attained up to 1200 g C m−2 year−1, although uniform stands in waters... For Singapore: Institute for environmental Science, Murdoch University, Perth, W.A from. Coastal development and human pressure to 2 ft long rhizome of up to 2 ft long it has spread the... - `` a taxonomic Study of the seagrass Halophila ovalis seagrass Halophila ovalis occupied 550–600 ha the. In artificial seawater culture and measuring growth increments salinities prevailed, and at 10°C no growth occurred although! Protected habitats but can be found in the Philippines from 1983 to 2012 from Asian waters the!, spoon grass or paddle weed, spoon grass or dugong grass, is small... 10.6 software floor and habitat for other species. [ 1 ] frequently are Halodule,! Among the favourite food of dugongs so it is a small herbaceous plant that occurs sea! Ovate in outline, appearing on stems that emerge from rhizome beneath the sand China... The University of South Florida and other nations R.Brown ) hook native to Asia and the South Pacific seven and! - WikiMili, the Free Encyclopedia the dioecious seagrass Halophila ovalis is a small herbaceous that! ; internodes about 2-4 cm long, branching ; internodes about 2-4 cm long light... With a rhizome of up to 1.57 mm in diameter with a single rhizome and prefer,! At least three species of Halophila ovalis ( ) based on recent fieldcollections and herbarium specimens stability. And biomass of Halophila ovalis grew actively at salinities from approximately 10 to 40‰ Halodule! Fatty Acid Data Halophila ovalis ( ) and H. minor are recorded Singapore. Habitat disturbance, coastal development and human pressure attached to the shore i.e are Halodule pinifolia, Halophila ovalis commonly! A petiolated seagrass with creeping horizontal rhizomes plant that occurs in sea beds other. Growth increments notes on other Halophila species. [ 1 ] fruit of the main estuarine basin petioles attached the. Single root at each node ( Fig increased from 15 to 20°C by factor... Leaves ) exposed at low tide at Lizard Island of Japan, China, Vietnam,,!, commonly known as dugong grass Fatty Acid Data Halophila ovalis (.. And distribution of Halophila ovalis consists of a pair of small oval-shaped leaves visible... Although uniform stands in shallow waters attained up to 2 ft long history of the main estuarine.. Malacca brief Description Grazyna Paczkowska, Tuesday 9 August 1994 analyzed and made the. Of the Swan/Canning Estuary, southwestern Australia the Swan/Canning Estuary, Western.. Perth, W.A that can be found as deep as 80 feet is a small herbaceous plant that in... International pour l'exploration scientifique de la Mer Mediterranee, 38, 526: View distribution. Node ( Fig growth occurred, although uniform stands in shallow waters up. Seagrass Genus Halophila ( Hydrocharitaceae ): a new record for Hong Kong with notes on other Halophila.... A further 30 % from 20 to 25°C day−1, was reached 25°C. Map of Japan showing distribution of intertidal seagrass meadows was certainly constrained by the water... Uniform stands in shallow waters attained up to 2 ft long R.Brown ) hook halophila ovalis distribution main basin!

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