Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
Timing and size of blooms of the ctenophore Mnemiopsis leidyi in relation to temperature in Narragansett Bay, RI
Autore:
Sullivan, BK; Van Keuren, D; Clancy, M;
Indirizzi:
Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA Univ Rhode Isl Narragansett RI USA 02882 anog, Narragansett, RI 02882 USA Univ Rhode Isl, Dept Biol Sci, Kingston, RI 02881 USA Univ Rhode Isl Kingston RI USA 02881 ept Biol Sci, Kingston, RI 02881 USA
Titolo Testata:
HYDROBIOLOGIA
fascicolo: 1-3, volume: 451, anno: 2001,
pagine: 113 - 120
SICI:
0018-8158(200105)451:1-3<113:TASOBO>2.0.ZU;2-U
Fonte:
ISI
Lingua:
ENG
Soggetto:
EASTERN NORTH-ATLANTIC; CHESAPEAKE BAY; RHODE-ISLAND; ANCHOA-MITCHILLI; PREDATION; ABUNDANCE; ICHTHYOPLANKTON; SCYPHOMEDUSAE; ZOOPLANKTON;
Keywords:
Ctenophore; predation; climate change; fish eggs; fish larvae;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Agriculture,Biology & Environmental Sciences
Citazioni:
26
Recensione:
Indirizzi per estratti:
Indirizzo: Sullivan, BK Univ Rhode Isl, Grad Sch Oceanog, Narragansett, RI 02882 USA Univ Rhode Isl Narragansett RI USA 02882 nsett, RI 02882 USA
Citazione:
B.K. Sullivan et al., "Timing and size of blooms of the ctenophore Mnemiopsis leidyi in relation to temperature in Narragansett Bay, RI", HYDROBIOL, 451(1-3), 2001, pp. 113-120

Abstract

The ctenophore Mnemiopsis leidyi is at the northern extreme of its geographic range in Narragansett Bay, an estuary on the northeast coast of the United States. Blooms have typically been observed in late summer and fall according to records from 1950 to 1979. We document an expansion of the seasonal range of this important planktonic predator to include springtime bloomsduring the 1980s and 1990s. This shift to an earlier seasonal maximum is associated with increasing water temperature in Narragansett Bay. Temperatures in spring have risen, on average, 2 degreesC from 1950 to 1999 with warmyears being associated with the positive phase of the North Atlantic Oscillation. During 1999, M. leidyi appeared earlier in spring and was more abundant than during any previous year for which records are available. Changesin the seasonal pattern and abundance of this predator are likely to have important effects on planktonic ecosystem dynamics of Narragansett Bay. These include reduction of zooplankton abundance in spring followed by increases in size and frequency of summer phytoplankton blooms. Earlier blooms of M. leidyi may also reduce survival of eggs and larvae of fish because, as in 1999, they coincide with the period of peak spawning.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/09/20 alle ore 02:12:54