Results 141 to 149 of about 1,097 (149)

Sexual difference in modes of selection on the pleopods of crayfish (Decapoda: Astacoidea) revealed by the allometry of developmentally homologous traits

Canadian Journal of Zoology, 2003
Crayfish have five pairs of abdominal limbs called pleopods. In males, the first and second pairs of pleopods are used for transferring spermatophores to the female during copulation. The remaining pleopods in males have no obvious function. Female crayfish use their pleopods to carry eggs. Accordingly, it is expected that the selection pressures that
Naoko Kato, Tadashi Miyashita
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МЕТОДИКА РАСШИРЕННОЙ МОРФОМЕТРИИ И НОВЫЙ МЕТОДИЧЕСКИЙ ПОДХОД ПРИ ОПРЕДЕЛЕНИИ СТЕПЕНИ ЗРЕЛОСТИ САМЦОВ КОЛЮЧЕГО РАКА FAXONIUS LIMOSUS (RAFINESQUE, 1817) (ASTACOIDEA: CAMBARIDAE)

2023
Разработаны оригинальные методики, необходимые для полноценного изучения биологии колючего рака Faxonius limosus: создания основы биометрического паспорта вида, оценки морфометрической популяционной изменчивости, анализа созревания самцов, их нерестовой активности.
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A Comparison of the Gastric Mills of Nine Species of Parastacid Crayfish From a Range of Habitats, Using Multivariate Morphometrics (Decapoda, Astacoidea)

Crustaceana, 1990
La morphometrie des ossicules zygocardiaques et urocardiaques du moulin gastrique a ete etudiee chez neuf especes d'ecrevisse Parastacidae, en utilisant l'analyse canonique multivariee. Toutes les especes differaient de facon significative les unes des autres, mais le groupe de celles vivant en eau ouverte et celles appartenant au genre Engaeus ...
I.O. Growns, A.M.M. Richardson
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Reproduction, Molting and Mortality of Female Noble Crayfish, Astacus Astacus (L., 1758), From Five Norwegian Populations Subjected To Indoor Culture Conditions (Decapoda, Astacoidea)1)

Crustaceana, 1990
La proportion des femelles d'Astacus astacus a maturite (d'apres la presence des glandes cementaires) quand elles etaient soumises a des conditions de culture a l'interieur a partir du mois d'aout, etait plus elevee (92,9-96,7%) comparee a celle des femelles dans les conditions naturelles (6,5-74,0%).
Trond Taugbøl, Jostein Skurdal
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Distribucija bjelonogog raka Austropotamobius pallipes species complex (Astacoidea ; Astacidae) u Bosni i Hercegovini / The sistribution of the White-clawed Crayfish Austropotamobius pallipes Species Complex (Astacoidea; Astacidae) in Bosnia and Herzegovina

Struktura i dinamika ekosistema Dinarida / Structure and Dynamics of Ecosystem Dinarides, 2012
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Appeasement Displays in Cambarid Crayfish (Decapoda, Astacoidea)

1979
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Notes On the So-Called "Blue Color Phase" in North American Cambarid Crawfishes (Decapoda, Astacoidea)

Crustaceana, 1987
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Cellulolytic activity in the hindgut of crayfish (Decapoda, Astacoidea).

1999
GHERARDI, FRANCESCA, P. ACQUISTAPACE, G. SALVI, MASTROMEI, GIORGIO   +3 more
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Analisi morfometrica dei gamberi dulcacquicoli Austropotamobius pallipes (species complex), Procambarus clarkii e Orconectes limosus (Decapoda: Astacoidea)

2010
CHIESA S, SCALICI, MASSIMILIANO, GIBERTINI G.   +2 more
openaire   +1 more source