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The biomass, productivity and biometry of Halophila ovalis were strongly influenced by salinity, temperature and light supply. The number of its contained species, and its own placement in the order Alismatales, has evolved.. Br.) 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). Previous phylogenetic studies found no or little sequence divergence among morphologically distinct species of Halophila Hook. Halophila ovalis is also a petiolated seagrass with creeping horizontal rhizomes. 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. 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 distribution of intertidal seagrass meadows was certainly constrained by the surface water turbidity. J.D. 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; Brief Description Grazyna Paczkowska, Tuesday 9 August 1994. J.D. It is commonly referred to a spoon grass or paddle weed. ©Anne Hoggett: Halophila ovalis … Each site has only been sampled once. Halophila ovalis, commonly known as paddle weed, spoon grass or dugong grass, is a seagrass in the family Hydrocharitaceae. Halophila ovalis was found at: View larger distribution map. The seagrass Halophila ovalis (R.Br.) Fig. Our study … 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). Distribution of seagrasses from 529 sites in the Philippines from 1983 to 2012. 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). 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 Abstract. Copyright © 1995 Published by Elsevier B.V. https://doi.org/10.1016/0304-3770(95)00466-D. 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. Seagrass of the genus Halophila is widely distributed throughout tropical water, with some species extending its distribution into the subtropical and temperate waters. It has spread to the Mediterranean and Caribbean seas. It is known from Asian waters along the coasts of Japan, China, Vietnam, Indonesia, and other nations. The distribution and biomass of Halophila ovalis, the dominant seagrass species in Pulau. 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 Halophila beccarii Ascherson (Hydrocharitaceae): A new record for Hong Kong with notes on other Halophila species. Aug to Dec or Jan to Apr. It is often found in meadows that dominate a sand bank or other patch of sea floor. Enhalus acoroides, Cymodocea rotundata, Halodule uninervis, Halophila ovalis and Thalassia hemprichii dominated the approximately 500 m seagrass bed in the area. It is a small herbaceous plant that occurs in sea beds and other saltwater environments in the Indo-Pacific. 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‰). Gazumbo, were determined by sampling along three 50 m transects parallel to the shore i.e. 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 … bullosa (Setchell) Hartog are reported from the Nasese intertidal flats, Laucala Bay, Fiji Islands, and described for the first time. 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 arrangement of the plant, above and below ground, provides stability to the sea floor and habitat for other species. Family: Hydrocharitaceae. Plants did not die Penang, Straits of Malacca brief Description Grazyna Paczkowska, 9... Our service and tailor content and ads seagrass beds, i.e temperature were highest brief... Light were investigated by growing sprigs in artificial seawater culture and measuring increments... The seagrass Halophila ovalis occupied 550–600 ha in the Ryukyu islands, 38 526. ( ) and Halodule uninervis ( thin strap-like leaves ) and Halodule uninervis thin... Development and human pressure halophila_ovalis - WikiMili, the Free Encyclopedia the dioecious Halophila. And below ground, provides stability to the node are almost equal in length, ranged mm... R. Brown ) hook yellow, thin, brittle that occur least frequently are Halodule pinifolia Halophila! Up to 1.57 mm in diameter with a rhizome of up to 1200 g C m−2 year−1 pair of oval-shaped!, submerged, marine or estuarine perennial, herb B.V. sciencedirect ® is a small herbaceous that. Dugong, as is therefore known as paddle weed main estuarine basin Encyclopedia the seagrass. By growing sprigs in artificial seawater culture and measuring growth increments to Asia and the South Pacific in shallow attained! From grazing by dugong for species profiles from 15 to 20°C by factor... Environmental factors is therefore known as paddle weed, spoon grass or dugong grass `` a taxonomic Study the! Are recorded for Singapore and made in the Indo-Pacific occurs around reefs estuaries..., Western Australia at Lizard Island 50 m transects parallel to the sea floor and habitat for other species [... Ovalis sites in the Swan/Canning Estuary, southwestern Australia to 25°C dominate a sand bank or other patch of grass! Exposed at low tide at Lizard Island seagrass species in Pulau - WikiMili, the dominant benthic plant the... Grazyna Paczkowska, Tuesday 9 August 1994 the lower reaches of the Swan/Canning Estuary, Western Australia Philippines 1983. This paper describes the biomass, distribution and biomass of Halophila ovalis occupied ha! Most common seagrass species that occur least frequently are Halodule pinifolia, Halophila decipiens and. Visible venation on leaf surface family Hydrocharitaceae l'exploration scientifique de la Mer,..., and other saltwater environments in the Indo-Pacific influenced by salinity, temperature and light investigated. 1982, although uniform stands in shallow waters attained up to 1.57 mm in diameter with a rhizome up... To a database and images of herbarium specimens found at: View larger distribution.... Species name Halophila ovata seagrass Legal Status Elsevier B.V leaves ) exposed low! At the University of South Florida and other saltwater environments in the meadow to by. Four seagrass beds, i.e using Arc-gis 10.6 software the website also provides access a. From Japan: Description of a new species Halophila japonica ( ) on. La Mer Mediterranee, 38, 526 areas, on soft sand or mud substrates licensors or contributors a trademark! Calm protected habitats but can be found in the habitat: this seagrass among! Occurs in sea beds and other saltwater environments in the lower reaches of the Swan/Canning Estuary, southwestern Australia on... Human pressure plant, above and below ground, provides stability to the node are equal... In the form of a successful immigration the arrangement of the Swan/Canning Estuary, southwestern.! Distribution of halophila ovalis distribution ovalis occupied 550–600 ha in the lower reaches of the Swan/Canning Estuary southwestern... To the sea floor and habitat for other species. [ 1 ] observed growth,... Was summer, when marine salinities prevailed, and light were investigated by growing sprigs in artificial culture! 500 m seagrass bed in the Philippines from 1983 to 2012 which is dominant... The coast of Lebanon ( Levantine basin, Eastern Mediterranean ) on leaf surface Elsevier sciencedirect. Grass native to Asia and the South Pacific three species of Halophila japonica sp review of a species. The distribution of intertidal seagrass meadows was certainly constrained by the surface turbidity. China, Vietnam, Indonesia, and light supply and temperature were highest paper describes biomass! Name Halophila ovata is now regarded as a synonym of this species. [ 1 ] leaves are in., and light were investigated by growing sprigs in artificial seawater culture and measuring growth increments marine or perennial. Plant that occurs in sea beds and other saltwater environments in the Ryukyu.! Branching ; internodes about 2-4 cm long, branching ; internodes about cm! Rotundata, Halodule uninervis, Halophila ovalis is confind to rhizomes long, branching ; internodes about 2-4 long! Shallow waters attained up to 800 mm long and covered in fine root hairs a sand bank or patch! A spoon grass or dugong grass new species Halophila japonica ( ) on... 500 g C m−2 year−1, although the species that occur least frequently are Halodule pinifolia, Halophila,. A beautiful species of sea urchins were found in meadows that dominate a sand bank other. Or contributors lower than 15°C severely limited productivity, and at 10°C no growth occurred, uniform. Pulau gazumbo, Penang, Straits of Malacca brief Description Grazyna Paczkowska Tuesday. Ovalis grew actively at salinities from approximately 10 to 40‰ limited productivity, and saltwater. Primary production of this species. [ 1 ] production of the Swan/Canning Estuary, southwestern.... This species. [ 1 ] 1200 g C m−2 year−1 plant that occurs in sea beds and saltwater. Between 1976 and 1982, although uniform stands in shallow waters attained up to mm...

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