Phyllospadix japonicus
Makino
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Phyllospadix japonicus.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
EN · En dangercritères B2ab(i,ii,iii)↘Décroissante- Évaluation
- 2010 · v3.1
- Altitude
- – m
- Profondeur
- 8 – 0 m
État de la populationTexte officiel évaluation IUCNExpert
The range size of Phyllospandix japonicus is declining in Korea (K.S. Lee pers. comm. 2008). In northern China this species was previously widespread over vast rocky shallow subtidal areas, but since the establishment of extensive kelp algal aquaculture virtually all the P. japonicus has been eliminated (approximately 90% decline) (F.T. Short pers. comm. 2008). The distribution in Japan is very limited. This species is naturally fragmented due to a lack of suitable substrate. Overall declines are estimated to be in the region of between 30 and 50 % over the three generation lengths (18 years).
Menaces identifiées(3 menaces classées CMP-IUCN)
1_1Housing & urban areasOngoing1_2Commercial & industrial areasOngoing2_4_3Scale Unknown/UnrecordedOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
Major threats to P. japonicus include coastal development, shoreline hardening and kelp aquaculture.
The recruitment rate of this species is low as it inhabits a high energy environment, where conditions need to be right for seeds to be successful.
The recruitment rate of this species is low as it inhabits a high energy environment, where conditions need to be right for seeds to be successful.
Habitats préférentiels (classification IUCN)
12_1Marine Intertidal - Rocky Shoreline9_9Marine Neritic - Seagrass (Submerged)
Mesures de conservation recommandéesStratégies de conservation IUCNExpert
The distribution of Phyllospadix japonicus falls into protected areas in South Korea (Environmental Conservation Areas or Special Coastal Management Areas) and is protected by 'The Marine Ecosystem Conservation and Management Act' in Korea.
Stress écologiques (6)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_1Ecosystem conversion1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation
Usage & commerce (1)Use & Trade — IUCNExpert
8Fibresubsistance
Priorités de recherche (3)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_3Life history & ecology3_1Population trends
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 - northwest
Références bibliographiques (3)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., Aioi, K. and IilzumiI, H. 1988. Comparative leaf structure and its functional significance in <i>Phyllospadix iwatensis</i> Makino and <i>Phyllospadix japonicus</i> Makino (Zosteraceae). <i>Aquatic Botany</i> 30(3): 169-187.
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. Phyllospadix japonicus. The IUCN Red List of Threatened Species 2010: e.T173341A6994909. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s