List of Chromista by conservation status

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Template:IUCN Chromista chart As of September 2021[update], the International Union for Conservation of Nature (IUCN) has evaluated the conservation status of 15 species within Chromista.[1] The IUCN has not evaluated any protist species other than those in Phaeophyceae. No Chromista subspecies or subpopulations have been evaluated. No evaluated Chromista species are confirmed to be extinct, but four are tagged as possibly extinct.

As of 2005[update] the New Zealand Threat Classification System has evaluated 38 species of macroalgae as Threatened and 23 as Data Deficient.[2] Some of these species are only of concern nationally.[2]

## Contents

* 1 IUCN evaluations
* 1.1 Critically Endangered (possibly extinct)
* 1.2 Endangered
* 1.3 Vulnerable
* 1.4 Data Deficient
* 2 NZTCS evaluations
* 2.1 Nationally Critical
* 2.2 Range Restricted
* 2.3 Data Deficient
* 3 See also
* 4 References

## IUCN evaluations

### Critically Endangered (possibly extinct)

* Bifurcaria galapagensis \- Galapagos stringweed
* Desmarestia tropica \- tropical acidweed
* Dictyota galapagensis
* Spatoglossum schmittii

### Endangered

* Sargassum setifolium \- string sargassum

### Vulnerable

* Eisenia galapagensis \- Galapagos kelp

### Data Deficient

All are brown algae (Phaeophyceae):

* Of the Dictyotaceae,
* Dictyopteris diaphana
* Dictyota major
* Padina concrescens
* Spatoglossum ecuadoreanum
* Of the Chordariaceae,
* Zosterocarpus abyssicola
* Of the Sargassaceae,
* Sargassum albemarlense
* Sargassum galapagense
* Sargassum templetonii
* Of the Sporochnaceae,
* Sporochnus rostratus

## NZTCS evaluations

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Species of Algae (NZTCS, 2005)

* 61 extant species have been assessed
* 0 are Introduced and Naturalised
* 61 are Native (not Introduced and Naturalised)
* 22 are Not Evaluated or Data Deficient
* 38 are Evaluated
* 0 of those Evaluated are Not Threatened
* 37 of those Evaluated are At Risk
* 37 of those At Risk are Range Restricted
* 1 of those Evaluated are Threatened
* 1 of those Threatened are Nationally Critical
* 0 of those Evaluated are Extinct

### Nationally Critical

* Dione arcuata \- One Location

### Range Restricted

* Caulerpa racemosa \- Secure Overseas
* Caulerpa sertulariodes \- Secure Overseas, One Location
* Caulerpa webbiana \- Secure Overseas, One Location
* Chlidophyllon kaspar \- One Location
* Chordariopsis capensis \- Data Poor, Secure Overseas
* Chrysymenia? polydactyla \- Data Poor, One Location
* Codium geppiorum \- Secure Overseas, One Location
* Curdiea balthazar \- One Location
* Dichotomaria marginata \- Secure Overseas, One Location
* Durvillaea sp. Antipodes WELT A17080 - One Location
* Durvillaea chathamensis \- One Location
* Galaxaura cohaerens \- One Location
* Galaxaura filamentosa \- One Location
* Galaxaura rugosa \- One Location
* Ganonema farinosa \- One Location
* Gelidium allanii \- Threatened Overseas
* “Gelidium” ceramoides
* Gelidium longipes \- One Location
* Gigartina sp. Bounty Is. - One Location
* Gigartina dilatata -
* Gigartina grandifida \- One Location
* Gigartina sp. Three Kings - One Location
* Landsburgia ilicifolia \- Data Poor, One Location
* Landsburgia myricifolia \- One Location
* Lessonia adamsiae \- One Location
* Lessonia brevifolia -
* Lessonia tholiformis \- One Location
* Marginariella parsonsii
* Palmophyllum umbracola
* Perisporochnus regalis \- One Location
* Predaea sp. - One Location
* Psilosiphon scoparium \- Threatened Overseas
* Pterocladia lindaueri \- One Location
* Pyrophyllon cameronii \- One Location
* Sargassum johnsonii \- One Location
* Sonderopelta coriacea \- Secure Overseas, One Location
* Tricleocarpa cylindrica \- Secure Overseas, One Location

### Data Deficient

* Acrochaete endostraca
* Acrochaetium leptonemioides \- One Location
* Acrochaetium neozeelandicum \- One Location
* Bangia spp.
* Caulerpa fastigiata
* Cephalocystis furcellata
* Champiocolax sp.
* Codium perriniae
* Codium platyclados \- Threatened? Overseas
* Cutleria mollis
* Entocladia spp.
* Epicladia testarum
* Erythrotrichia bangioides \- One Location
* Erythrotrichia hunterae \- One Location
* Giraudyopsis stellifera \- Secure Overseas
* Nemacystus novae-zelandiae
* Ochlochaete hystrix
* Ovillaria catenata
* Porphyra spp.
* Porphyridium purpuream \- Secure Overseas
* Pseudobryopsis planktonica \- One Location
* Sebdenia lindaueri \- One Location
* Syncoryne reinkei

## See also

* List of fungi by conservation status

## References

1. ↑ "IUCN Red List version 2021-2". International Union for Conservation of Nature and Natural Resources (IUCN). https://www.iucnredlist.org/search?permalink=a440ef52-25e7-4af2-8872-2f974e6cd767. Retrieved 8 September 2019.
2. ↑ 2.0 2.1 Hitchmough, Rod; Bull, Leigh; Cromarty, Pam (January 2007) (in English). New Zealand Threat Classification System lists 2005. Wellington, NZ: Science & Technical Publishing Department of Conservation. ISBN 978-0478141283. http://www.doc.govt.nz/Documents/science-and-technical/sap236.pdf. Retrieved 2 February 2018.

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Threatened species

Template: Threatened species by region

IUCN Red List|

| Categories1|

| Extinct|

* Extinct (EX)
* Extinct in the Wild (EW)

|

Threatened|

* Critically Endangered (CR)
* Endangered (EN)
* Vulnerable (VU)

Lower risk|

* Near Threatened (NT)
* Least Concern (LC)
* Lower Risk (LR)
* Conservation Dependent (LR/cd)

Not fully assessed|

* Data Deficient (DD)
* Not Evaluated (NE)

Species|

| Lists|

* Extinct
* Extinct in the Wild
* Critically Endangered
* Endangered
* Vulnerable
* Near Threatened
* Least Concern
* Data Deficient

|

WP categories|

* Extinct
* Extinct in the Wild
* Critically Endangered
* Endangered
* Vulnerable
* Near Threatened
* Least Concern
* Data Deficient

CITES|

* Appendix I
* Appendix II
* Appendix III

By taxa|

* Endangered arthropods / spiders / Decline in insect populations
* Threatened Banksia / rays / sharks / Fungi / Chromista
* The World's 25 Most Endangered Primates
* The world's 100 most threatened species

Conservation|

* Biodiversity action plan
* Biodiversity threats
* Conservation biology
* CITES
* ARKive
* Bird conservation
* Conservation status
* Conservation-reliant species
* Ecoregion conservation status
* Habitat destruction
* Latent extinction risk
* Rare species
* Vulnerability and susceptibility

1 Pre-2001 categories and subcategories shown in italics.

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