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51, 1-2, 1-54. 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). Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family Hydrocharitaceae. Halophila_ovalis - WikiMili, The Free Encyclopedia 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 ). It is a small herbaceous plant that occurs in sea beds and other saltwater environments in the Indo-Pacific . White sand, mud. 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). It has spread to the Mediterranean and Caribbean seas. Aquatic Botany, 1, 203-215. 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 A brief history of the Halophila taxonomic development is presented. It is used as food by dugong, as is therefore known as dugong grass. 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. 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. Brief Description Grazyna Paczkowska, Tuesday 9 August 1994. H. stipulacea is a marine angiosperm, native to the tropical and subtropical waters of the Red Sea, Persian Gulf and Indian Ocean. 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- Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. Seagrass ecosystems are lost due to habitat disturbance, coastal development and human pressure. Family: Hydrocharitaceae. 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 … 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. Distribution of seagrasses from 529 sites in the Philippines from 1983 to 2012. The distribution of intertidal seagrass meadows was certainly constrained by the surface water turbidity. The highest observed growth rate, approximately 2.1 mg DW per apex day−1, was reached at 25°C. Distribution and Biomass of Halophila ovalis (R.Brown) Hook. Halophila ovalis (R.Br.) Halophila ovalis. Productivity increased from 15 to 20°C by a factor of seven, and a further 30% from 20 to 25°C. Authority: (R.Br.) Hook. View 1 Datasets Fatty Acid Data Halophila ovalis (R.Br.) Singapore (Table 1). 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- 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. White sand, mud. 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 … ©Anne Hoggett: Halophila ovalis … The seagrass leaf provides a … 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. Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. Inset shows details of H. ovalis sites in the Ryukyu Islands. 2010). Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family Hydrocharitaceae. Rhizomes up to 1.57 mm in diameter with a single root at each node ( Fig. Hooker, 1858. world over ranging from temporal to tropical regions . Th e distribution of Halophila ovalis is confind to . ©Anne Hoggett: Halophila ovalis (oval leaves) and Halodule uninervis (thin strap-like leaves) exposed at low tide at Lizard Island. Halophila ovalis grew actively at salinities from approximately 10 to 40‰. Halophila ovalis was found at: View larger distribution map. It is often found in meadows that dominate a sand bank or other patch of sea floor. ; At least three species of sea urchins were found in the meadow. Hook.f. Diversity and distribution of macrophytes along the coast of Lebanon (Levantine Basin, Eastern Mediterranean). The effects of salinity, temperature and light were investigated by growing sprigs in artificial seawater culture and measuring growth increments. 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 This plant has no children Legal Status. 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. Flowers and fruit of the seagrass Halophila ovalis subsp. 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 Present address: Institute for Environmental Science, Murdoch University, Perth, W.A. 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'. The species that occur least frequently are Halodule pinifolia, Halophila decipiens, and Halophila minor. Memoirs Hong Kong Nat. The species name Halophila ovata is now regarded as a synonym of this species.[1]. Copyright © 1995 Published by Elsevier B.V. https://doi.org/10.1016/0304-3770(95)00466-D. Halophila ovalis was found at: View larger distribution map. Aquat. Family: Hydrocharitaceae. - "A Taxonomic Study of the Seagrass Genus Halophila (Hydrocharitaceae) from Japan: Description of a New Species Halophila japonica sp. Dioecious. 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. Report for Halophila ovalis (R.Br.) The arrangement of the plant, above and below ground, provides stability to the sea floor and habitat for other species. Map of Japan showing distribution of Halophila japonica ( ) and H. ovalis ( ) based on recent fieldcollections and herbarium specimens. Halophila ovalis is a beautiful species of sea grass native to Asia and the South Pacific. Aquatic Botany. The number of its contained species, and its own placement in the order Alismatales, has evolved.. Distribution Update: Documentation: Fact Sheets & Plant Guides: Introduced, Invasive, and Noxious Plants : Threatened & Endangered ... Halophila ovalis (R. Distribution of seagrasses from 529 sites in the Philippines from 1983 to 2012. 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. Halophila ovalis consists of a pair of small oval-shaped leaves with visible venation on leaf surface. Distribution and Biomass of Halophila ovalis (R. Brown) Hook. H. ovalis and H. minor are recorded for Singapore. 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.) Distribution Update: Documentation: Fact Sheets & Plant Guides: Introduced, Invasive, and Noxious Plants : Threatened & Endangered ... Halophila ovalis (R. 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. such as Indo-West Pacific. Shabei, Xialongwei, Beimu and Yingluo Bay . 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 Studies suggest that Halophila ovalis can recover rapidly from grazing by dugong. The leaves are ovate in outline, appearing on stems that emerge from rhizome beneath the sand. 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 ovalis (R.Br.) The distribution and biomass of Halophila ovalis, the dominant seagrass species in Pulau. 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. Hook. Singapore (Table 1). 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). Figure 13. Fig. 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). Role in the habitat: This seagrass is among the favourite food of dugongs so it is also sometimes called Dugong grass. The plant occurs around reefs, estuaries, islands, inter-tidal areas, on soft sand or mud substrates. View 1 Datasets Fatty Acid Data Halophila ovalis (R.Br.) 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 occupied 550–600 ha in the lower reaches of the estuary, approximately 20% of the area of the main estuarine basin. Fig. The distribution of intertidal seagrass meadows was certainly constrained by the surface water turbidity. Rhizomes long, branching; internodes about 2-4 cm long, light yellow, thin, brittle. 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 . Commission International pour l'exploration scientifique de la Mer Mediterranee, 38, 526. 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 — 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 … Seagrass species in Pulau 20°C by a factor of seven, and 10°C... 2.1 mg DW per apex day−1, was reached at 25°C meadows was certainly constrained by the surface turbidity! ( 95 ) 00466-D. 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