Catalogo Articoli (Spogli Riviste)

OPAC HELP

Titolo:
FECUNDITY AND EGG LOSS DURING INCUBATION IN NORWAY LOBSTER (NEPHROPS-NORVEGICUS) IN THE NORTH TYRRHENIAN SEA
Autore:
MORI M; BIAGI F; DERANIERI S;
Indirizzi:
UNIV GENOA,IST ANAT COMPARATA,VIALE BENEDETTO XV 5 I-16132 GENOA ITALY UNIV PISA,DIPARTIMENTO SCI UOMO & AMBIENTE I-56126 PISA ITALY
Titolo Testata:
Journal of Natural History
fascicolo: 10-11, volume: 32, anno: 1998,
pagine: 1641 - 1650
SICI:
0022-2933(1998)32:10-11<1641:FAELDI>2.0.ZU;2-2
Fonte:
ISI
Lingua:
ENG
Soggetto:
SEXUAL MATURITY; SIZE; CRAB;
Keywords:
FECUNDITY; NEPHROPS NORVEGICUS; WESTERN MEDITERRANEAN;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
35
Recensione:
Indirizzi per estratti:
Citazione:
M. Mori et al., "FECUNDITY AND EGG LOSS DURING INCUBATION IN NORWAY LOBSTER (NEPHROPS-NORVEGICUS) IN THE NORTH TYRRHENIAN SEA", Journal of Natural History, 32(10-11), 1998, pp. 1641-1650

Abstract

Fecundity of Norway lobster females of the northern Tyrrhenian Sea was studied in order to examine the time and the size of the eggs duringtheir development incubation, as well as egg loss. Females incubate their eggs under the abdomen for a period of about six months. Mean diameter of hatching eggs is 1.63 mm. The egg loss estimated from the oocytes to the egg at about one month before hatching averaged 49.5%, whereas from the oocytes to close to hatching averaged 71.5%. A mean rateper month of egg loss of about 10% through the incubation period was estimated for Nephrops norvegicus from the northern Tyrrhenian Sea. The counts obtained from eggs that are close to hatching give more reliable estimates of a female's potential contribution of larvae to the population.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 30/11/20 alle ore 11:44:24