Effect of small herbivorous sea-snails on survival rates of the young laminariales plants
1990
Asano, M. (Tohoku National Fisheries Research Inst., Shiogama, Miyagi (Japan)) | Kikuchi, S. | Kawamura, T.
Changes in the number of young sea-tangle Laminaria japonica were followed through a 5-week laboratory experiment under four steps of water temperatures (2.5-10.0 degrees C) with five steps of small herbivorous sea-snail densities (0-24 or 0-240 total body weight/square-meter). Although the growth in leaf length increased with increased water temperature, the number of sea-tangles decreased inversely with increased water temperatures and herbivorous sea-snail density. One of the major factors which contributes to a dense sea-tangles population in a year of unusually low coastal water temperatures is thought to be the suppression of the feeding activity of small herbivorous snails which are known to feed on young laminaria sporophytes
Показать больше [+] Меньше [-]