Community Structure of Free-living Marine Nematodes in the Area of Agar-Producing Alga Ahnfeltia Tobuchiensis Field (Starka Strait, Peter the GreatBay, East Sea)

다국어 초록 (Multilingual Abstract)

The structure of the nematodes communities has been studied in the sediments on two sites located outside and under the layer of Ahnfeltia tobuchiensis (Kanno and Matsubara 1932; Makijenko 1970). Bottom sediments at the stations were represented by sands with a different degree of silting.
Specific structure of nematodes at the stations was significantly different under the similar environmental conditions (water depth, dissolved oxygen saturation, salinity, temperature of the bottom layer and organic carbon content inside of the sediment). Nematodes dominated (75.7 %) in meiobenthos community under the layer of A. tobuchiensis where concentration of silt particles was 12 %. Representatives of the family Comesomatidae were dominant. Low index of species diversity and high Simpson domination index were detected in this community. Under a layer of A. tobuchiensis with the thickness of 30 cm concentration of the silt particles was 5.39 %; nematodes density was low and made 32.1 % of the general density of meiobenthos. Species of the families Xyalidae and Monoposthiidae were dominant. Outside of A. tobuchiensis, field percentage of silt particles was minimal (3.1 %) and representatives of families Cyatholaimidae and Axonolaimidae dominated. The specific structure of nematodes in this type of the ground is characterized by high index of species diversity and low level of domination.

참고문헌 (Reference)

1 "nematodes inhabiting sands of the New York Bight apex" 61-73,

2 "Species composition and distribution algae in the trade layer of Ahnfeltia in Starka Strait Biology of Ahnfeltia DVO AN SSSR" titlya (titlya): 15-20, 1980

3 "Some features of a horizontal water exchange above a layer of Ahnfeltia in Starka Strait in summer-autumnal period Biology of Ahnfeltia DVO AN SSSR" (vojilov) : 35-45, 1980

4 "Principles and metodes of quantitative analysis in faunistic studies" 287-, 1982

5 "Population structure and species distribution of the free-living" 1980

6 "Environment and some features of flora and fauna composition of the exploited natural fields at Stark strait Sea of Japan" iva (iva): 83-99, 1994

7 "Distribution of sea cucumber fries on the fields of Ahnfeltia tobuchiensis in Peter the Great Bay" 131 : 321-326, 2002

8 "Die Nematodenfauna der sublitoralen Region in der Kileler Bucht" 411-512, 1958

9 "Die Beziehung zwischen Mundhlengestalt Ernhrungswiese und Vorkommen bei freilebenden marinen Nematoden" 439-484, 1953