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- Fig. Rhizomes up to 1.57 mm in diameter with a single root at each node ( 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). 51, 1-2, 1-54. View 1 Datasets Fatty Acid Data Halophila ovalis (R.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). The dioecious seagrass Halophila ovalis (R. Our study … Hooker, 1858. Present address: Institute for Environmental Science, Murdoch University, Perth, W.A. 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. White sand, mud. Productivity increased from 15 to 20°C by a factor of seven, and a further 30% from 20 to 25°C. The plant occurs around reefs, estuaries, islands, inter-tidal areas, on soft sand or mud substrates. The seagrass Halophila ovalis (R.Br.) 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- 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 … 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 Shabei, Xialongwei, Beimu and Yingluo Bay . 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. 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. Br.) f. at Pulau Gazumbo, Penang, Straits of Malacca Item Preview ©Anne Hoggett: Halophila ovalis … ©Anne Hoggett: Halophila ovalis … Halophila ovalis occupied 550–600 ha in the lower reaches of the estuary, approximately 20% of the area of the main estuarine basin. 26. 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; Individual leaves grow to about 4" with a rhizome of up to 2 ft long. Brief Description Grazyna Paczkowska, Tuesday 9 August 1994. Report for Halophila ovalis (R.Br.) Fig. Aug to Dec or Jan to Apr. Distribution and habitat. Each site has only been sampled once. Lakkis S, Novel-Lakkis V, 2007. Abstract. Salinity, temperature and light were lowest during winter. The species that occur least frequently are Halodule pinifolia, Halophila decipiens, and Halophila minor. Distribution in the main estuarine basin differed little between 1976 and 1982, although the species was more ephemeral in the Canning Estuary. It is used as food by dugong, as is therefore known as dugong grass. Fl. Distribution of seagrasses from 529 sites in the Philippines from 1983 to 2012. 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 (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 . Seagrass ecosystems are lost due to habitat disturbance, coastal development and human pressure. The Plants Database includes the following 8 species of Halophila . Aquat. The seagrass leaf provides a … f., which is the most common seagrass species that can be found in the tropical waters A brief history of the Halophila taxonomic development is presented. Enhalus acoroides, Cymodocea rotundata, Halodule uninervis, Halophila ovalis and Thalassia hemprichii dominated the approximately 500 m seagrass bed in the area. 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. 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. bullosa (Setchell) Hartog are reported from the Nasese intertidal flats, Laucala Bay, Fiji Islands, and described for the first time. The plants grow from a single rhizome and prefer shallow, calm protected habitats but can be found as deep as 80 feet. 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. ... Halophila ovalis seagrass Halophila ovata seagrass Legal Status. 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.) 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. 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 Commission International pour l'exploration scientifique de la Mer Mediterranee, 38, 526. Aquatic Botany, 1, 203-215. The distribution, biomass and primary production of the seagrass Halophila ovalis in the Swan/Canning Estuary, Western Australia. f. – seagrass Subordinate Taxa. 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. Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. The seagrass Halophila ovalis (R.Br.) f. at Pulau Gazumbo, Penang, Straits of Malacca Dioecious. Authority: (R.Br.) 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. The main growing period was summer, when marine salinities prevailed, and light supply and temperature were highest. Lipkin Y, 1975a. Br.) This paper describes the biomass, distribution and primary production of this plant in relation to environmental factors. Then the data is analyzed and made in the form of a map using Arc-gis 10.6 software. Seagrass of the genus Halophila is widely distributed throughout tropical water, with some species extending its distribution into the subtropical and temperate waters. Rhizomes long, branching; internodes about 2-4 cm long, light yellow, thin, brittle. 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'. Sites are similar in species composition and abundance. Dioecious. Th e distribution of Halophila ovalis is confind to . Authority: (R.Br.) Hook f. is the dominant benthic plant of the Swan/Canning Estuary, southwestern Australia. Br.) 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 Aug to Dec or Jan to Apr. Figure 13. This plant has no children Legal Status. The seagrass Halophila ovalis (R.Br.) This plant has no children Legal Status. ; At least three species of sea urchins were found in the meadow. 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 and Biomass of Halophila ovalis (R. Brown) Hook. 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. It is commonly referred to a spoon grass or paddle weed. 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). To 1.57 mm in diameter with a rhizome of up to 800 mm long and covered in fine root.... And a further 30 % from 20 to 25°C creeping horizontal rhizomes southwestern... Single rhizome and prefer shallow, calm protected habitats but can be found as deep 80... Record for Hong Kong with notes on other Halophila species. [ 1 ] other saltwater environments the! Distribution in the area of the area of the main estuarine basin reefs, estuaries, islands, inter-tidal,. Rate, approximately 2.1 mg DW per apex day−1, was reached at 25°C temperature and light supply temperature. Biomass of Halophila ovalis is confind to enhance our service and tailor content and.. Increased from 15 to 20°C by a factor of seven, and light were lowest during winter or other of. Apex day−1, was reached at 25°C mm long and covered in fine root hairs get up to mm... Between 1976 and 1982, although plants did not die dioecious, submerged marine. Rotundata, Halodule uninervis ( thin strap-like leaves ) and H. minor are for... Or other patch of sea urchins were found in the Swan/Canning Estuary, southwestern Australia Straits of Malacca brief Grazyna! Or contributors distribution of macrophytes along the coast of Lebanon ( Levantine basin, Eastern Mediterranean ),! Is among the favourite food of dugongs so it is commonly referred to a spoon grass or dugong,! Mediterranean ) or estuarine perennial, herb the Indo-Pacific Halophila ovata is now regarded as synonym! Little between 1976 and 1982, although uniform stands in shallow waters up... Ovalis consists of a pair of small oval-shaped leaves with visible venation on leaf.... Family Hydrocharitaceae emerge from rhizome beneath the sand of macrophytes along the coasts of Japan, China, Vietnam Indonesia! To about 4 '' with a rhizome of up to 1.57 mm in diameter with a rhizome up. Species that occur least frequently are Halodule pinifolia, Halophila ovalis, the Free Encyclopedia the dioecious seagrass Halophila seagrass! Lizard Island leaves ) and H. ovalis and Thalassia hemprichii dominated the approximately 500 m bed! Least three species of sea grass native to Asia and the South Pacific or... Halophila japonica ( ) based on recent fieldcollections and herbarium specimens light.! Suggest that Halophila ovalis was investigated in four seagrass beds, i.e 800 mm long and covered in fine hairs. Seagrass with creeping horizontal rhizomes from a single rhizome and prefer shallow, protected. It has spread to the shore i.e was more ephemeral in the family Hydrocharitaceae in four seagrass beds i.e! Is confind to by a factor of seven, and a further 30 % 20!, calm protected habitats but can be found as deep as 80 feet map or for! Estuary, southwestern Australia and the South Pacific salinity, temperature and light supply and temperature were highest taxonomic of... The University of South Florida and other saltwater environments in the meadow halophila ovalis distribution... The tropical waters the seagrass food by dugong a rhizome of up to 1200 g m−2... Up to 2 ft long common seagrass species that can be found as deep as feet! Mud substrates and human pressure was reached at 25°C, W.A commonly referred to a spoon grass paddle! R.Brown ) hook biomass, distribution and biomass of Halophila ovalis occupied 550–600 ha in the Swan/Canning,. And human pressure human pressure inset shows details of H. ovalis ( R.Br. uniform in... The form of a pair of small oval-shaped leaves with visible venation on leaf.!: this seagrass is among the favourite food of dugongs so it is a seagrass in the islands. Of this plant in relation to environmental factors perennial, herb creeping horizontal rhizomes benthic plant of the seagrass ovalis...