Biodiversity of fish in Estonian coastal waters of the Baltic Sea

Fish species abundance in experimental gillnet surveys (number of individuals per gillnet station) in different parts of coastal sea in summer over the period of 1997-2005.

Sampling details: time: July-August; depth: 2-8m; mesh sizes: 17, 21, 25, 30, 33, 38, 42, 45, 50, 55 and 60 mm.

Abundance ranks:

very high (> 29) + + + +

high (2.9-29) + + +

medium (0.29-2.9) + +

low/occasional (< 0.29) +

not recorded -

		Gulf of Riga Study areas 1 & 2	Baltic Proper Study area 3	Moonsund Archipelago Study areas 4 & 5	Gulf of Finland Study areas 6 & 7
Atlantic cod	Gadus morhua L.	-	+	-	+
Baltic herring	Clupea harengus membras L.	+++	+++	++	+++
Baltic sprat	Sprattus sprattus balticus (Schn.)	-	+	+	+
Black goby	Gobius niger L.	-	+	+	-
Bleak	Alburnus alburnus alburnus (L.)	++	++	++	++
Burbot	Lota lota (L.)	-	-	+	-
Carp bream	Abramis brama (L.)	-	-	+	+
Common carp	Cyprinus carpio carpio L.	-	-	+	-
Common dace	Leuciscus leuciscus (L.)	++	+	+	-
Common whitefish	Coregonus lavaretus lavaretus (L.)	+	++	-	++
Crucian carp	Carassius carassius (L.)	-	-	+	-
European chub	Leuciscus cephalus (L.)	-	-	+	-
European perch	Perca fluviatilis L.	++++	+++	+++	++++
European smelt	Osmerus eperlanus (L.)	-	+	+	+++
Flounder	Platichtys flesus (L.)	++	++++	++	+++
Fourhorn sculpin	Triglopsis quadricornis (L.)	-	-	-	+
Garpike	Belone belone (L.)	-	-	-	+
Gibel carp	Carassius gibelio (Bloch)	++	+	+	+
Great sandeel	Hyperoplus lanceolatus (Le Sauvage)	-	+	-	+
Gudgeon	Gobio gobio gobio (L.)	++	-	+	+
Ide	Leuciscus idus (L.)	+	+	+	-
Longspined bullhead	Taurulus bubalis (Euphrasen)	-	+	-	+
Northern pike	Esox lucius L.	+	+	++	+
Roach	Rutilus rutilus (L.)	++	+++	+++	++
Rudd	Scardinius erythrophthalmus (L.)	+	-	++	+
Ruffe	Gymnocephalus cernuus (L.)	++	+	++	+
Sea trout	Salmo trutta trutta L.	-	+	+	+
Shorthorn sculpin	Myoxocephalus scorpius (L.)	-	+	-	-
Zander	Sander lucioperca (L.)	++	-	+	+
Ziege	Pelecus cultratus (L.)	-	-	+	-
Tench	Tinca tinca (L.)	-	-	+	-
Turbot	Psetta maxima (L.)	+	++	+	+
Twaite shad	Alosa fallax fallax (Lacépedè)	-	-	+	-
Vendace	Coregonus albula (L.)	-	-	-	+
White bream	Blicca bjoerkna (L.)	+	-	+++	-
Vimba	Vimba vimba (L.)	+++	+	+	+
Viviparous blenny	Zoarces viviparus (L.)	++	+	+	++

Study areas:

1. Kihnu island; 2. Kõiguste Bay; 3. Vilsandi island; 4. Matsalu Bay; 5. Saarnaki island & Sarve Bay (Hiiumaa HELCOM COBRA Reference Area); 6. Käsmu Bay; 7. Vaindloo island