Interannual fluctuations in the density of sand lance, Ammodytes americanus, larvae in Long Island Sound, 1951-1983

Enumeration data from over 2,300 ichthyoplankton samples collected during 17 yr, spanning a 32-yr interval (1951-1983), were compiled to determine interannual variations in density of sand lance larvae. Years of relatively high densities were noted during the winters of 1965-1966 and 1978-1979 and l...

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Bibliographic Details
Published in:Estuaries 1987-09, Vol.10 (3), p.246-254
Main Authors: Monteleone, D.M, Peterson, W.T, Williams, G.C
Format: Article
Language:English
Subjects:
Acoustic data
Agnatha. Pisces
AMMODYTES
Animal and plant ecology
Animal, plant and microbial ecology
Animals
Biological and medical sciences
Breeding seasons
Demecology
DENSIDAD DE LA POBLACION
DENSITE DE POPULATION
Eggs
ESTACIONES DEL ANO
ESTUAIRE
ESTUARIES
ESTUARIOS
Fish larvae
Fundamental and applied biological sciences. Psychology
HISTOIRE
HISTORIA
HISTORY
Larvae
Larval development
LONG ISLAND, NEW YORK
Marine ecology
Marine fishes
NEW YORK
NUEVA YORK
PERIODICIDAD
PERIODICITE
PERIODICITY
Plankton
POPULATION DENSITY
SAISON
Seas
SEASONS
Vertebrata
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Summary:Enumeration data from over 2,300 ichthyoplankton samples collected during 17 yr, spanning a 32-yr interval (1951-1983), were compiled to determine interannual variations in density of sand lance larvae. Years of relatively high densities were noted during the winters of 1965-1966 and 1978-1979 and low densities in 1971-1974. A regular increase in numbers during the late 1970's and the peak in 1978-1979 coincided with increases in population size found throughout the coastal northwest Atlantic Ocean. Densities in Long Island Sound began to decline in 1980 and this continued through 1983. In contrast, densities throughout coastal Atlantic areas during the 1980's remained at least as high as they were 1976-1978. Interannual fluctuations in density of sand lance larvae could be partially explained by water temperatures in December. Warm Decembers were associated with low larval densities.
ISSN:0160-8347
1559-2758
DOI:10.2307/1351852