**3.1 Species composition and distribution of brown algae in the studied area**

On the total there are 44 species of brown algae found up to now on the shelf of the western part of Bering Sea and Commander Islands. The species list is given below in the table format (Table 1).


Marine Macrophytic Algae of the Western Sector of North Pacific (Russia) 193

Up now there are 36 species of green algae found on the shelf of the western part of Bering Sea and Commander Islands. The species list is given below in the table format (Table 2).

**Class Bryopsidophyceae Order Bryopsidales Family Derbesiaceae 1** *Derbesia marina* (Lyngbye) Solier **CI Family Codiaceae 2** *Codium ritteri* Setchell et Gardner **CI Class Chlorophyceae Order Chlorococcales Family Chlorochytriaceae 3** *Chlorochytrium inclusum* Kjellman **In all places Family Endosphaeraceae 4** *Codiolum gregarium* Braun **CI Class Ulvophyceae Order Cladophorales Family Cladophoraceae 5** *Chaetomorpha ligustica* (Kützing) Kützing **CI, K, O 6** *Chaetomorpha linum* **(**O.F. Müller) Kützing **CI 7** *Chaetomorpha melagonium* (Weber et Mohr) Kützing **OZ, K 8** *Cladophora speciosa* Sakai **CI, K 9** *Rhizoclonium riparium* (Roth) Harvey **CI, K, O Order Ulotrichales Family Gomontiaceae 10** *Monostroma crassidermum* Tokida **K, O 11** *Monostroma grevillei* (Thuret) Wittrock **CI, K, NR Family Ulotrichaceae 12** *Acrosiphonia duriuscula* (Ruprecht) Yendo **CI, K, O, NR 13** *Psedothrix groenlandica* (J.Agardh) Hanic et Lindstrom **CI, O 14** *Spongomorpha arcta* (Dillwyn) Kützing **CI 15** *Spongomorpha mertensii* (Yendo) Setchell et Gardner **CI 16** *Ulothrix flacca* (Dillwyn) Thuret in Le Jolis **CI, K, O 17** *Ulothrix implexa* (Kützing) Kützing **O 18** *Urospora penicilliformis* (Roth) Areschoug **CI, K, O 19** *Urospora wormskjoldii* (Mertens ex Horneman) Rosenvinge **CI, O Order Ulvales Family Kornmanniaceae 20** *Blidingia chadefaudii* (Feldman) Bliding **K 21** *Blidingia minima* (Nägeli ex Kützing) Kylin **CI, K, O 22** *Blidingia subsalsa* (Kjellman) Kornman et Sahling **CI, O** 

**Taxon Distribution** 

**within the studied area** 

**3.2 Species composition and distribution of green algae in the studied area** 

**Record number** 


Table 1. Empire Chromalveolata Kingdom Straminopila Division Ochrophyta Class Phaeophyceae

*Petalonia fascia* (O.F. Müller) Kuntze **CI, K, O, NR**  *Scytosiphon dotyi* Wynne **CI, O**  *Scytosiphon lomentaria* (Lyngb.) Link **CI, K, O Order Laminariales Family Alariaceae**  *Alaria angusta* Kjellman *emend*. Petrov **CI, OZ, K,** 

*Alaria marginata* Postels et Ruprecht **CI, K, O**  *Eualaria fistulosa* (Postels et Ruprecht) Wynne **CI, K Family Arthrothamnaceae**  *Arthrothamnus bifidus* (Gmelin) Ruprecht **OZ, K Family Chordaceae**  *Chorda asiatica* Sasaki et Kawai **K, O Family Costariaceae**  *Agarum clathratum* Dumortier **in all places**  *Thalassiophyllum clathrus* (Gmelin) Postels et Ruprecht **CI, K Family Laminariaceae**  *Cymathaere triplicata* (Postels et Ruprecht ) J.Agardh **CI**  *Laminaria longipes* Bory **CI, OZ, K**  *Laminaria yezoensis* Miyabe **CI, OZ, K, O** 

**<sup>37</sup>***Saccharina bongardiana* (Postels et Ruprecht ) Selivanova,

**<sup>39</sup>***Saccharina gurjanovae* (A. Zinova) Selivanova, Zhigadlova

Table 1. Empire Chromalveolata Kingdom Straminopila Division Ochrophyta Class

Phaeophyceae

**<sup>38</sup>***Saccharina dentigera* (Kjellman) Lane, Mayes, Druehl et

Zhigadlova et G.I. Hansen **In all places** 

Saunders **CI, K** 

et G.I. Hansen **OZ, K** 

**Order Fucales Family Fucaceae 40** *Fucus evanescens* C. Agardh **In all places Order Ralfsiales Family Ralfsiaceae 41** *Ralfsia fungiformis* (Gunnerus) Setchell et Gardner **CI, K, O 42** *Ralfsia verrucosa* (Areschoug) Areschoug **K Order Sphacelariales Family Sphacelariaceae 43** *Battersia arctica* (Harvey) Draisma, Prud'homme et Kawai **K, O 44** *Chaetopteris plumosa* (Lyngbye) Kützing **K** 

**NR** 
