TY - JOUR
T1 - Short-term dynamics of tidepool fish community
T2 - Diel and seasonal variation
AU - Arakaki, Seiji
AU - Tokeshi, Mutsunori
N1 - Funding Information:
Acknowledgements We thank all the members of the Amakusa Marine Biological Laboratory, especially M. Kido and K. Tanaka for administrative support and T. Sameshima for technical support. Part of this research was supported by the 21st century COE programme from the Ministry of Education, Culture, Sports and Technology and Japan Society for the Promotion of Science (Grant-In Aid numbers 14255013 and 14340246 to MT).
PY - 2006/8
Y1 - 2006/8
N2 - Short-term temporal dynamics in a tidepool fish community were quantitatively examined through a series of direct observation at consecutive low tides in a temperate-subtropical intertidal of southwestern Japan. The visual observation was sufficiently effective compared with the capture by anaesthetics and allowed a continual, undisturbed monitoring. Species composition markedly varied between consecutive day versus night in spring-autumn, but not in winter. In contrast, species composition on consecutive days and on consecutive nights was relatively stable all through the year. The pattern of diel change in abundance varied among species and seasons. C. gulosus, Istiblennius sp. and Girella spp. showed the tendency of night-time occurrence, while B. fuscus individuals tended to occur by day. These trends of day-night differences were mainly observed in spring and summer and rarely in winter. Size differences between day and night were detected in B. fuscus, C. gulosus, Istiblennius sp. and Girella spp. This tidepool fish community demonstrated variation in abundance and body size on short time scales, which may be attributable to behavioural differences among species.
AB - Short-term temporal dynamics in a tidepool fish community were quantitatively examined through a series of direct observation at consecutive low tides in a temperate-subtropical intertidal of southwestern Japan. The visual observation was sufficiently effective compared with the capture by anaesthetics and allowed a continual, undisturbed monitoring. Species composition markedly varied between consecutive day versus night in spring-autumn, but not in winter. In contrast, species composition on consecutive days and on consecutive nights was relatively stable all through the year. The pattern of diel change in abundance varied among species and seasons. C. gulosus, Istiblennius sp. and Girella spp. showed the tendency of night-time occurrence, while B. fuscus individuals tended to occur by day. These trends of day-night differences were mainly observed in spring and summer and rarely in winter. Size differences between day and night were detected in B. fuscus, C. gulosus, Istiblennius sp. and Girella spp. This tidepool fish community demonstrated variation in abundance and body size on short time scales, which may be attributable to behavioural differences among species.
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U2 - 10.1007/s10641-006-9024-5
DO - 10.1007/s10641-006-9024-5
M3 - Article
AN - SCOPUS:33748508211
VL - 76
SP - 221
EP - 235
JO - Environmental Biology of Fishes
JF - Environmental Biology of Fishes
SN - 0378-1909
IS - 2-4
ER -