Amphipods (Amphipoda: Gammaridea) of the Chukchi sea
RUSALCA 2004, 2005, 2009
Daria Petrova, Vladislav DzhurinskiySaint-Petersburg State University, Zoological Institute of Russian Academy of Sciences, Saint-Petersburg, Russia
Explorations of the Chukchi Sea fauna
«Taimyr» and «Waigatch»
(1910-1915)
«Vega» (1878-1879)
«Dmitriy Laptev» (1989)
«Krasin» (1935)
RUSALCA: Sampling stations 2004-2005
Prof.Khromov 2004:
- 19 stations.
Sever 2005:
- 8 stations.
Total: 64 samples
of amphipods
Currents of the Chukchi sea(Ushakov P.V., with editing, 1952)
The goals of this work:
1. To describe taxonomic structure of amphipod fauna (Amphipoda: Gammaridea) on the observed water area;
2. To designate the value of biomass for all identified amphipods;
3. To characterize the space distribution some species of amphipods.
Average biomasses of amphipodsin the Chukchi sea
2004
2005
RUSALCA 2005
2,430,04 0,24 0,01 0,69 0,52
21,43
0
5
10
15
20
25
Pontopore
iidae
Ampelis
cidae
Melit
idae
Stenoth
oidae
Ischyro
ceridae
Aoridae
Lysia
nassidae
bio
ma
ss
va
lue
, g
/m2
RUSALCA 2004
1,11
4,66
0,280,01 0,01 0,01
0,330,01
2,07
0,010
1
2
3
4
5
Pontopore
iidae
Am
pelisci
dae
Melit
idae
Acanth
onotozo
mat
idae
Odiid
ae
Oedic
erotid
ae
Stenoth
oidae
Arg
issid
ae
Lysia
nassidae
Phoxocephal
idae
bio
ma
ss
va
lue
, g
/m2
Species list of abundant families:
Ampeliscidae: Ampelisca eschrichtiA.macrocephalaA.birulaiByblis gaimardi
Pontoporeiidae: Pontoporeia femorata
Lysianassidae: Anonyx nugax pacificusAristias tumidusHippomedon denticulatusLepidepecreum sp.Paratryphosites abyssiSocarnes bidenticulatus
Biomass of Pontoporeiidae
Professor Khromov
2004
Biomass of Pontoporeiidae (2004)
3,96
6,29
16,4
0,01 0,04 0,29 0,22 0,17 0,24 0,22 0,11
0
2
4
6
8
10
12
14
16
18
11 13 15 17 20 22 23 24 62B 73B 85B
stations
bio
mass v
alu
e, g
/m2
Biomass of Pontoporeiidae
Sever 2005
Biomass of Pontoporeiidae (2005)
1,30,3
17,34
0
3
6
9
12
15
18
13 14 15
stationsb
iom
ass v
alu
e,
g/m
2
Biomass of Ampeliscidae
Professor Khromov
2004
Biomass of Ampeliscidae (2004)
95,81
0,85 0,82 0,01 0,31 0,9 0,878,76
0,074,94
0
25
50
75
100
11 13 17 20 23 25 58B 73B 85B 107
stations
bio
ma
ss
va
lue
, g
/m2
Biomass of Ampeliscidae
Biomass of Ampeliscidae (2005)
90,57
1,12 0,46 0,730
25
50
75
100
13 14 15 19
stationsb
iom
as
s v
alu
e, g
/m2
Sever 2005
Biomasses of Pontoporeiidae and Ampeliscidae –Serdtse-Kamen – Cape Hope transect
Biomass of Pontoporeiidae
3,966,29
16,4
0,011,3
0
17,34
0
5
10
15
20
25
30
11 (13) 13 (15) 15 17 (19)
stations
bio
mass v
alu
e, g
/m2
Biomass of Ampeliscidae
95,81
0,85 0,46 0,82 0,730,46
90,57
0
20
40
60
80
100
11 (13) 13 (15) 15 17 (19)
stations
bio
mass v
alu
e, g
/m2
Prof. Khromov 2004
Sever 2005
RUSALCA 2009: Sampling stations
15 stations
including
10 stations
in the Chukchi sea
Average biomasses of amphipodsin the Chukchi sea (2009)
RUSALCA 2009
0,47
0,290,32
0,26
0,01 0,020,08
0,01
0
0,1
0,2
0,3
0,4
0,5
Am
pelis
cida
e
Ponto
poreiid
ae
Lysia
nassid
ae
Mel
itidae
Oed
icer
otid
ae
Phoxo
cephal
idae
Photid
ae
Ste
nothoid
ae
bio
mass v
alu
e,
g/m
2
RUSALCA-2009
Biomass of Pontoporeiidae (2009)
2,18
0,69
0,030
0,5
1
1,5
2
2,5
11 28 148
stations
bio
mass v
alu
e,
g/m
2
RUSALCA-2009
Biomass of Ampeliscidae (2009)
0,1
1,06
0,1
0
0,2
0,4
0,6
0,8
1
1,2
11 31 119
stations
bio
mass v
alu
e, g
/m2
Biomasses of Pontoporeiidae and Ampeliscidae –Serdtse-Kamen – Cape Hope and Koluchinskaya Bay-Cape Lisbourne transects
Biomass of Ampeliscidae (2009)
0,02 0
1,28
8,24
0,150
1
2
3
4
5
6
7
8
66 97 136 138 143
stations in the East-Siberian sea
bio
mass v
alu
e,
g/m
2
List of species (Amphipoda: Gammaridea) have been found in the Chukchi sea
(RUSALCA 2004, 2005, 2009)Ampeliscidae: Ampelisca birulai
A.eshrichti Lysianassidae: Hippomedon sp.A.latipes Anonyx nugax pacificusA.macrocephala Paratryphosites abyssiByblis gaimardi Aristias tumidus
Pontoporeiidae: Pontoporeia femorata Socarnes bidenticulatusMelitidae: Quasimelita formosa Lepidepecreum sp.
Q. quadrispinosa Aoridae: Arctolembos arcticus Megamoera borealis Phoxocephalidae: Paraphoxus oculatusM. dentata Harpinia sp.M.glacialis Stegocephalidae: Stegocephalus inflatusM. rafiae Oedicerotidae: Arrhis phyllonyx phyllonyxM.aff.subtener Acanthostepheia behringiensisM.unimaki Amathillopsidae: Amathillopsis spinigeraMaera prionochira Eusiridae: Eusirus cuspidatusMaera sp.Melita dentata
Stenothoidae: Metopa clypeataMetopa sp.
Acanthonotozomatidae: Acanthonotozoma serratumAcanthonotozoma inflatum
Odiidae: Odius carinatusArgissidae: Argissa hamatipes
14 families, 37 species
Resume1. Fauna of observed water area includes 14 families and 37 species
amphipods (Amphipoda: Gammaridea);
2. - Abundant species of amphipods belong to families Ampeliscidae, Pontoporeiidae, Lysianassidae;
- In the south-west part of the Chukchi sea the highest biomass values were recorded for family Ampeliscidae in 2004, 2005 and 2009.
3. We didn’t find specimens of Ampeliscidae in Bering Strait. In the south-western part of the Chukchi sea we recorded a lot of Pontoporeiidae specimens. Those biomass values of families Ampeliscidae and Pontoporeiidae may be partly explained by presence of anticyclonic circulation in the south-east part of the Chukchi sea.
Thank you for your attention!
