Long-term evolution of the meiofauna at a sandy station in Lake Grevelingen, The Netherlands

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OLR (1985)32 (12) E. Biological Oceanography 1043 85:7241 Tanaka, Masao et al., 1985. Community structure of a rocky shore in Tsuji-shima Island, Amakusa [Japan]. I. Horizontal and vertical distribution pattern of common animals. Publs Amakusa mar. biol. Lab., Kyushu Univ., 8(1):1-26. Seven sessile and five mobile species dominated the intertidal habitat. Relations between the micro- topographical conditions of the rock surface such as slope, slope direction, and tidal level are reported and discussed. The significance of bare space is discussed. Amakusa Mar. Biol. Lab., Kyushu Univ., Tomioka, Reihoku-cho, Amakusa, Kumamoto-ken, 863-25, Japan. 85:7242 Willems, K.A., Y. Sharma, C. Heip and A.J.J. Sandee, 1984. Long-term evolution of the meio- fauna at a sandy station in Lake Grevelingen, The Netherlands. Neth. J. Sea Res., 18(3-4):418-433. From 1975 through 1980, 95 species of nematodes and 26 species of harpacticoids were identified. Despite important changes in the lake during this period, due to dam construction, neither diversity nor species number of harpacticoids changed sig- nificantly. However, nematode diversity, species number, and especially species composition changed drastically over the years, as did densities of both copepods and nematodes. Zool. Inst., State Univ. of Ghent, Ledeganckstraat 35, B-9000 Ghent, Belgium. (mwf) El20. Estuarine, marsh and mangrove communities 85:7243 Dawes, C.J., M.O. Hall and R.K. Riechert, 1985. Seasonal biomass and energy content in seagrass communities on the west coast of Florida. J. coast. Res., 1(3):255-262. The mean total biomass at six sites from Tampa Bay to Cedar Key was 385 g dry wt/m 2 of which at least 45% was Thalassia testudinum. The beds cover 900 km 2 and have an approximate overall standing stock of 3.4 x 106 U.S. tons. Available kilocalories ranged from 344 in mid-winter to 1837 kcal/m 2 in late spring and summer. Dept. of Biol., Univ. of So Florida, Tampa, FL 33620, USA. (mwf) 85:7244 Hall, S.L. and F.M. Fisher Jr., 1985. Annual productivity and extraeeilular release of dissolved organic compounds by the epibenthic algal com- munity of a brackish marsh [Texas]. J. Phycol., 21(2):277-281. Annual productivity was estimated to be 71 g C-m 2, approximately 10% of the estimated net aerial productivity of the grass canopy. The percentage of photoassimilated carbon released was fairly con- stant, and the rate of excretion appeared dependent primarily upon the rate of carbon fixation. Greater rates of release were observed with high salinity, low soil-moisture conditions. It was estimated that up to 10% of the DOC in adjacent tidal creek water could be produced by this community. Dept. of Biol., Rice Univ., Houston, TX 77251, USA. 85:7245 Woodroffe, C.D., 1985. Studies of a mangrove basin, Tuff Crater, New Zealand. I. Mangrove biomass and production of detritus. Estuar. coast. Shelf Sci., 20(3):265-280. Avicennia marina var. resinifera adopts two distinct growth forms, taller tree-like mangroves up to 4 m tall along the banks of the tidal creek, and low stunted shrub mangroves less than 1 m tall on the mudflats. On the basis of a biomass/height rela- tionship for the taller trees and a biomass/canopy width relationship for the lower, above-ground biomass was estimated. While the value for the taller mangroves is similar to figures reported elsewhere, the fact that 94% of the basin is covered by low generally sparse mangroves means that total biomass for the basin averages only 7.6 t/ha and litter-fall is very low when compared with elsewhere. North Australia Res. Unit, Australian Natl. Univ., P.O. Box 41321, Casuarina, NT 5792, Australia. El40. Birds 85:7246 Doornbos, G., 1984. Piscivorous birds on the saline Lake Grevelingen, The Netherlands: abundance, prey selection and annual food consumption. Neth. J. Sea Res., 18(3-4):457-479. Delta Inst. for Hydrobiol. Res., Vierstraat 28, 4401 EA Yerseke, Netherlands. 85:7247 Gaston, A.J. and D.G. Noble, 1985. The diet of thick-billed murres (Uria lomvia) in west Hudson Strait and northeast Hudson Bay. Can. J. Zoo/., 63(5):1148-1160. Canadian Wildlife Serv., Hdqtrs. Region, Ottawa, ON K 1A 0E7, Canada.

Transcript of Long-term evolution of the meiofauna at a sandy station in Lake Grevelingen, The Netherlands

Page 1: Long-term evolution of the meiofauna at a sandy station in Lake Grevelingen, The Netherlands

OLR (1985) 32 (12) E. Biological Oceanography 1043

85:7241 Tanaka, Masao et al., 1985. Community structure of

a rocky shore in Tsuji-shima Island, Amakusa [Japan]. I. Horizontal and vertical distribution pattern of common animals. Publs Amakusa mar. biol. Lab., Kyushu Univ., 8(1):1-26.

Seven sessile and five mobile species dominated the intertidal habitat. Relations between the micro- topographical conditions of the rock surface such as slope, slope direction, and tidal level are reported and discussed. The significance of bare space is discussed. Amakusa Mar. Biol. Lab., Kyushu Univ., Tomioka, Reihoku-cho, Amakusa, Kumamoto-ken, 863-25, Japan.

85:7242 Willems, K.A., Y. Sharma, C. Heip and A.J.J.

Sandee, 1984. Long-term evolution of the meio- fauna at a sandy station in Lake Grevelingen, The Netherlands. Neth. J. Sea Res., 18(3-4):418-433.

From 1975 through 1980, 95 species of nematodes and 26 species of harpacticoids were identified. Despite important changes in the lake during this period, due to dam construction, neither diversity nor species number of harpacticoids changed sig- nificantly. However, nematode diversity, species number, and especially species composition changed drastically over the years, as did densities of both copepods and nematodes. Zool. Inst., State Univ. of Ghent, Ledeganckstraat 35, B-9000 Ghent, Belgium. (mwf)

El20. Estuarine, marsh and mangrove communities

85:7243 Dawes, C.J., M.O. Hall and R.K. Riechert, 1985.

Seasonal biomass and energy content in seagrass communities on the west coast of Florida. J. coast. Res., 1(3):255-262.

The mean total biomass at six sites from Tampa Bay to Cedar Key was 385 g dry wt/m 2 of which at least 45% was Thalassia testudinum. The beds cover 900 km 2 and have an approximate overall standing stock of 3.4 x 106 U.S. tons. Available kilocalories ranged from 344 in mid-winter to 1837 kcal/m 2 in late spring and summer. Dept. of Biol., Univ. of So Florida, Tampa, FL 33620, USA. (mwf)

85:7244 Hall, S.L. and F.M. Fisher Jr., 1985. Annual

productivity and extraeeilular release of dissolved

organic compounds by the epibenthic algal com- munity of a brackish marsh [Texas]. J. Phycol., 21(2):277-281.

Annual productivity was estimated to be 71 g C-m 2, approximately 10% of the estimated net aerial productivity of the grass canopy. The percentage of photoassimilated carbon released was fairly con- stant, and the rate of excretion appeared dependent primarily upon the rate of carbon fixation. Greater rates of release were observed with high salinity, low soil-moisture conditions. It was estimated that up to 10% of the DOC in adjacent tidal creek water could be produced by this community. Dept. of Biol., Rice Univ., Houston, TX 77251, USA.

85:7245 Woodroffe, C.D., 1985. Studies of a mangrove basin,

Tuff Crater, New Zealand. I. Mangrove biomass and production of detritus. Estuar. coast. Shelf Sci., 20(3):265-280.

Avicennia marina var. resinifera adopts two distinct growth forms, taller tree-like mangroves up to 4 m tall along the banks of the tidal creek, and low stunted shrub mangroves less than 1 m tall on the mudflats. On the basis of a biomass/height rela- tionship for the taller trees and a biomass/canopy width relationship for the lower, above-ground biomass was estimated. While the value for the taller mangroves is similar to figures reported elsewhere, the fact that 94% of the basin is covered by low generally sparse mangroves means that total biomass for the basin averages only 7.6 t /ha and litter-fall is very low when compared with elsewhere. North Australia Res. Unit, Australian Natl. Univ., P.O. Box 41321, Casuarina, NT 5792, Australia.

El40. Birds

85:7246 Doornbos, G., 1984. Piscivorous birds on the saline

Lake Grevelingen, The Netherlands: abundance, prey selection and annual food consumption. Neth. J. Sea Res., 18(3-4):457-479. Delta Inst. for Hydrobiol. Res., Vierstraat 28, 4401 EA Yerseke, Netherlands.

85:7247 Gaston, A.J. and D.G. Noble, 1985. The diet of

thick-billed murres (Uria lomvia) in west Hudson Strait and northeast Hudson Bay. Can. J. Zoo/., 63(5):1148-1160. Canadian Wildlife Serv., Hdqtrs. Region, Ottawa, ON K 1A 0E7, Canada.