Halophila tricostata
M.Greenway
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Halophila tricostata.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
LC · Préoccupation mineure?Inconnue- Évaluation
- 2010 · v3.1
- Altitude
- – m
- Profondeur
- 45 – 0 m
État de la populationTexte officiel évaluation IUCNExpert
This species may be common in deep waters of the Great Barrier Reef, however its density fluctuates more than 100% annually due to seasonal changes. This species is generally absent during the cooler months (April through October). Although this species population trend has not been extensively monitored, it is thought to be stable.
In December 1989, a density of 284 shoots/m² was recorded at Fitzroy Island, of which only 5-10% were male (Kuo et al. 1993).
In December 1989, a density of 284 shoots/m² was recorded at Fitzroy Island, of which only 5-10% were male (Kuo et al. 1993).
Menaces identifiées(4 menaces classées CMP-IUCN)
4_3Shipping lanesOngoing5_4_4Unintentional effects: (large scale) [harvest]Ongoing9_3_1Nutrient loadsOngoing9_3_2Soil erosion, sedimentationOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
This species is threatened by sediment loads in water, coastal development, dredging and marine developments, and minor damage from boating and shipping activities. It also could be impacted by coastal runoff and to some extent trawling activities (Green and Short 2003).
Habitats préférentiels (classification IUCN)
9_10Marine Neritic - Estuaries9_4Marine Neritic - Subtidal Sandy9_5Marine Neritic - Subtidal Sandy-Mud9_6Marine Neritic - Subtidal Muddy9_8_5Inter-Reef Soft Substrate9_9Marine Neritic - Seagrass (Submerged)
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
This species is present in remote locations, and has not been extensively monitored. Therefore, more research is needed on its biology and population status.
Most of this species' range lies within the Great Barrier Reef National Marine Park and World Heritage Sites and associated State Marine Parks.
The Queensland Fisheries Act allows destruction only when a permit has been assessed and issued. It is protected in either Fisheries Act or in National Park or Marine Park Acts in New South Wales and Queensland (Green and Short 2003).
Most of this species' range lies within the Great Barrier Reef National Marine Park and World Heritage Sites and associated State Marine Parks.
The Queensland Fisheries Act allows destruction only when a permit has been assessed and issued. It is protected in either Fisheries Act or in National Park or Marine Park Acts in New South Wales and Queensland (Green and Short 2003).
Stress écologiques (8)Stresses Classification — IUCNExpert
1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation2_2Species disturbance2_2Species disturbance2_2Species disturbance2_2Species disturbance
Priorités de recherche (2)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology
Niche IUCN globaleRealms · Systems · LMEs · Growth forms · FAOs — biogéographie IUCNExpert
Systèmes (terrestre/eau douce/marin)
Marine
Formes de croissance
Graminoid
Zones de pêche FAO
Pacific - western central
Références bibliographiques (4)Sources scientifiques de l'évaluation IUCNExpert
- IUCN. 2010. IUCN Red List of Threatened Species (ver. 2010.3). Available at: <a href="http://www.iucnredlist.org">http://www.iucnredlist.org</a>. (Accessed: 2 September 2010).
- Green, E.P. and Short, F.T. 2003. <i>World Atlas of Seagrasses</i>. University of California Press, Berkeley.
- Kuo, J., Long, W.L. and Coles, R.G. 1993. Occurrence and fruit and seed biology of <i>Halophila tricostata</i> Greenway (Hydrocharitaceae). <i>Australian Journal of Marine and Freshwater Research</i> 44: 43-57.
- Greenway, M. 1979. <i>Halophila tricostata</i> (Hydrocharitaceae), a new species of seagrass from the Great Barrier Reef region. <i>Aquatic Botany</i> 7(1): 67-70.
Évaluateurs & contributeurs (2)Personnes ayant contribué à l'évaluation IUCNExpert
assessor
Short, F.T. & Waycott, M.
evaluator
Livingstone, S., Harwell, H. & Carpenter, K.E.
Short, F.T. & Waycott, M. 2010. Halophila tricostata. The IUCN Red List of Threatened Species 2010: e.T173330A6992405. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s