Phyllospadix iwatensis
Makino
Pays · région · aire protégée · écorégion · biome
Graphe en cours d’indexation
Calcul du tissu écologique de Phyllospadix iwatensis.
Le graphe apparaîtra automatiquement dès que le calcul est terminé (rafraîchissement toutes les 5s).
Liste rouge IUCN
VU · Vulnérablecritères B1ab(ii,iii)↘Décroissante- Évaluation
- 2010 · v3.1
- Altitude
- – m
- Profondeur
- 4 – 0 m
État de la populationTexte officiel évaluation IUCNExpert
Phyllospandix iwatensis is limited throughout most of its range, except in China where only remnant populations remain since the start of extensive kelp aquaculture. There is evidence that there have been declines in Korea (K-S. Lee pers. comm. 2008). This species is naturally fragmented due to a lack of suitable substrate.
Menaces identifiées(5 menaces classées CMP-IUCN)
1_2Commercial & industrial areasOngoing5_4_6Motivation Unknown/UnrecordedOngoing9_2_3Type Unknown/UnrecordedOngoing9_3_1Nutrient loadsOngoing9_3_4Type Unknown/UnrecordedOngoing
Description complète des menacesTexte détaillé évaluation IUCNExpert
This species is threatened by industrial developments in coastal regions, land reclamation (shoreline hardening). Loss of vegetation also results from water pollution, coastal eutrophication, disturbance of habitats by fish trawling, clamming and 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 Phyllopadix iwatensis falls into protected areas in South Korea (Environmental Conservation Areas or Special Coastal Management Areas), and it is protected by 'The Marine Ecosystem Conservation and Management Act' in Korea.
Stress écologiques (6)Stresses Classification — IUCNExpert
1_1Ecosystem conversion1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation1_2Ecosystem degradation
Priorités de recherche (3)Research Needed Classification — IUCNExpert
1_2Population size, distribution & trends1_5Threats3_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 (5)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.
- Yabe, T., Ikusima, I. and Tsuchiya, T. 1996. Production and population ecology of <i>Phyllospadix iwatensis</i> Makino. I. Leaf growth and biomass in an intertidal zone. <i>Ecological Research</i> 10(3): 291-299.
- Yabe, T., Ikusima, I. and Tsuchiya, T. 1996. Production and population ecology of <i>Phyllospadix iwatensis</i> Makino. 2. Comparative studies on leaf characteristics, foliage structure and biomass change in an intertidal and subtidal zone. <i>Ecological Research</i> 11(3): 291-297.
- 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 iwatensis. The IUCN Red List of Threatened Species 2010: e.T173344A6995596. Accessed on 05 May 2026.
Distribution mondiale
Calcul de la distribution GBIF· ~10–60 s
Phénologie
Calcul du calendrier d'apparition· ~5–30 s
Consulter sur les bases externes
Observations & statuts
Cartographie