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Nine species of Copepoda Harpacticoida were found in sandy beaches in Egypt during the period November 1994 to December 1996. Two species of the family Ectinosomatidae are new to science, Arenosetella bassantae n. sp. and Noodtiella toukae n. sp. The genus Noodtiella is new to the fauna of the Mediterranean Sea. One subspecies of the family Paramesochridae is new to science, Kliopsyllus constrictus egyptus n. subsp. The other species found are already known from the Mediterranean: Arenopontia nesaie (Cylindropsyllidae), Phyllopodopsyllus pauli (Tetragonicipitidae), Amphiascus parvus (Diosaccidae) and Nitocra spinipes (Ameiridae). The last two species (A. parvus and N. spinipes) have already been recorded from Egyptian waters. This paper contains descriptions of the two new species and of local variations in one of the known species, Arenopontia nesaie and the new subspecies Kliopsyllus constrictus egyptus. Two more species could as yet not be identi ed beyond generic level: Alteutha sp. (family Peltidiidae), and Amphiascus sp. RÉSUMÉNeuf espèces de copépodes harpacticoïdes on été trouvées dans les plages sableuses, en Égypte, durant la période de novembre 1994 à décembre 1996. Deux espèces de la famille des Ectinosomatidae sont nouvelles pour la science, Arenosetella bassantae n. sp. et Noodtiella toukae n. sp. Le genre Noodtiella est nouveau pour la faune de la mer Méditerranée. Une sous-espèce de la famille des Paramesochridae est nouvelle pour la science, Kliopsyllus constrictus egyptus n. subsp. Les autres espèces trouvées sont déjà connues de Méditerranée: Arenopontia nesaie (Cylindropsyllidae), Phyllopodopsyllus pauli (Tetragonocipitidae), Amphiascus parvus (Diosaccidae) and Nitocra spinipes (Ameiridae). Les deux dernières espèces (A. parvus et N. spinipes) ont déjà été citées des eaux égyp-tiennes. Cet article contient les descriptions des deux espèces nouvelles et des variations locales de l'une des espèces connues, Arenopontia nesaie, ainsi que de la nouvelle sous-espèce Kliopsyllus constrictus egyptus. Deux espèces supplémentaires n'ont pas pu être identi ées au-delà du niveau générique: Alteutha sp. (Peltidiidae) et Amphiascus sp.

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The effects of long‐term experimental nutrient enrichment on nematode trophic guilds and morphometrics were examined in intertidal saltmarsh creeks of Plum Island Estuary, Massachusetts, USA. Nematodes from the marsh‐edge Spartina alterniflora habitat in a reference creek (n = 3300) were sampled annually and compared with nematodes (n = 3100) from a creek in which nitrate and phosphate loading rates were increased approximately 10–15× for 6 years. Trophic guilds in both creeks were dominated by epistrate (diatom) feeders and predators, and natural temporal variability across years was high. However, after 4 years of nutrient enrichment, a shift in the nutrient‐enriched creek was detected from a dominance of epistrate feeders to an increased proportion of predators, even though neither the benthic microalgae biomass nor the total density of nematodes was affected by fertilization. Nematodes also became longer, and longer relative to their diameter over time with nutrient enrichment because of the shift in trophic structure as short‐stout epistrate feeders were replaced with longer, more slender predators. These changes may have been directly related to nutrient enrichment effects on benthic algae or indirectly to the many other effects of enrichments on ecosystem structure or function. Our research indicates that nutrient enrichment alters the nematode community and this alternation may directly or indirectly affect the response of benthic algae to nutrient enrichment and as well as other ecosystem services.