+ Site Statistics
+ Search Articles
+ PDF Full Text Service
How our service works
Request PDF Full Text
+ Follow Us
Follow on Facebook
Follow on Twitter
Follow on LinkedIn
+ Subscribe to Site Feeds
Most Shared
PDF Full Text
+ Translate
+ Recently Requested

Development of the degree of presence of a spermatophore in the females of nephrops norvegicus decapoda reptantia and ovarian development



Development of the degree of presence of a spermatophore in the females of nephrops norvegicus decapoda reptantia and ovarian development



Journal of Experimental Marine Biology & Ecology 52(1): 15-24



Ovary development and the presence of spermatophore in females of N. norvegicus (L.) (Nephropidae) from south Brittany [France] were studied from July 1976-Oct. 1978 through size classes. Percentage of females bearing spermatophores increased slowly up to 1978 during which year a sudden decrease was observed. The percentage decreased to the lowest value obtained in 1976. A study of ovarian development showed that the proportion of small females taking part in reproduction was greater in 1978 than in 1977. The beginning of the decrease in the percentage of spermatophores present coincided with the beginning of spawning in each size class. Ovigerous females stay in burrows during the incubation season. The decrease is important, as the proportion of mature females is high and because the time separating the autumn molting from spawning is great. Spawning occurred in 4 mo. in 1978. The mean size at 1st maturity varied from year to year and also from month to month, even if the presence of spermatophores was the criterion.

Please choose payment method:






(PDF emailed within 1 workday: $29.90)

Accession: 005135894

Download citation: RISBibTeXText


Related references

Evolution du taux de presence de spermatophore chez les femelles de Nephrops norvegicus (L.) (Decapoda: Reptantia) et developpement ovarien. Journal of Experimental Marine Biology and Ecology 521: 15-24, 1981

volution du taux de prsence de spermatophore chez les femelles de Nephrops norvegicus (L.) (Decapoda:Reptantia) et dveloppement ovarien. Journal of Experimental Marine Biology and Ecology 52(1): 15-24, 1981

Evolution de taux de presence de spermatophore chez les femelles de Nephrops norvegicus (L.) et development ovarien de juillet 1976 a octobre 1978 dans la region Sud-Bretagne. International Council for the Exploration of the Sea C.M.: /K:42: 1-11, 1979

Abundancia de la cigala Nephrops norvegicus L Decapoda Reptantia de las costas de Galicia. Investigacion Pesquera (Barcelona): 461: 63-82, 1982

Utilization of functional criteria presence of a spermatophore maturation of the ovaries for determining the length the age at sexual maturity of nephrops norvegicus females of the southern brittany region france. Journal du Conseil Conseil International pour l'Exploration de la Mer 41(1): 28-36, 1983

Abundance of norway lobster nephrops norvegicus decapoda reptantia from galician coast spain. Investigacion Pesquera 46(1): 63-82, 1982

Preliminary histological investigation about seasonal cicle of germinal cells of males of Nephrops norvegicus L Crustacea, Decapoda in the southern Adriatic Sea Indagini istologiche preliminari sul ciclo stagionale delle cellule germinali dei maschi di Nephrops norvegicus L Crustacea, Decapoda nellAdriatico meridionale. Biologia Marina Mediterranea 102: 577-579 (Parte Prima), 2003

The development of the external sexual characters of Nephrops norvegicus (L.) (Decapoda: Nephropidae). Journal Nat Hist 83: 241-255, 1974

The activity rhythm of berried and unberried females of Nephrops norvegicus (Decapoda, Nephropidae). Crustaceana (Leiden) 80(9): 1121-1134, 2007

Utilisation de criteres fonctionnels (presence de spermatophore, maturation des ovaires) pour la determination de la taille et de l'age a maturite sexuelle des Nephrops norvegicus femelles de la region sud-Bretagne. Journal du Conseil Conseil International pour l'Exploration de la Mer 411: 28-36, 1983

Development of a codend concept to improve size selectivity of Nephrops Nephrops norvegicus in a multi-species fishery. Fisheries Research 111(1-2): 0-126, 2011

The ovarian maturation cycle of the Norway lobster Nephrops norvegicus (Linnaeus, 1758) (Crustacea, Decapoda) from the western Mediterranean Sea. Invertebrate Reproduction and Development 48(1/3): 161-169, 2005

The biology of nephrops andamanicus decapoda reptantia. Oceanographic Research Institute (Durban) Investigational Report (22): 5-55, 1969

On a New Species of Nephrops (Decapoda, Reptantia) From the South China Sea 1). Crustaceana 9(3): 274-284, 1965

On a new species of Nephrops (Decapoda, Reptantia) from the South China Sea. Crustaceana: 274-284, 1965