Differential utilization of biochemical components during larval development of the spider crab Maja brachydactyla (Decapoda: Majidae)
نویسندگان
چکیده
منابع مشابه
Post-larval development and sexual dimorphism of the spider crab Maja brachydactyla (Brachyura: Majidae)
the post-larval development of the majid crab Maja brachydactyla Balss, 1922 was studied using laboratoryreared larvae obtained from adult individuals collected in the ne atlantic. the morphology of the first juvenile stage is described in detail, while the most relevant morphological changes and sexual differentiation are highlighted for subsequent juvenile stages, until juvenile 8. the charac...
متن کاملDevelopmental and moult cycle related biochemical changes in larvae of the spider crab, Maja brachydactyla (Brachyura: Majidae) - Cambios bioquímicos relacionados con el ciclo de muda y desarrollo en las larvas del cangrejo, Maja brachydactyla (Brachyura: Majidae)
Ontogenetic changes in dry weight, elemental composition (CHN), and digestive enzyme activities (total protease, amylase) were studied during the moulting cycle of all larval instars (zoea I-II, megalopa; ZI, ZII, M) of the spider crab Maja brachydactyla Balss, 1922 reared in the laboratory. A gradual but significant increase in biomass was observed throughout the zoeal instars, followed by ste...
متن کاملMolecular phylogeny and biogeographic history of the European Maja spider crabs (Decapoda, Majidae).
We have assessed for the first time the phylogenetic relationships and biogeographic history of the crabs of the genus Maja that inhabit European coasts: M. brachydactyla, M. crispata, M. goltziana and M. squinado. Using mitochondrial markers, we have recovered a well-resolved phylogenetic tree that supports a single origin for the European species, most likely from an Indo-West Pacific ancesto...
متن کاملChemical and Physiological Changes During the Embryonic Development of the Spider Crab, Hyas araneus L. (Decapoda: Majidae)
During embryogenesis of the spider crab, Hyas araneus, four developmental phases were distinguished microscopically: cleavage, gastrula, embryo differentiation, prehatching phase. Changes in fresh weight (FW), dry weight (DW), ash-free dry weight (AFDW), water, carbon (C), nitrogen (N), total lipids, proteins, carbohydrates, and respiration rates were measured in developing eggs. The percentage...
متن کاملConsistent habitat segregation between sexes in the spider crabs Maja brachydactyla and Maja squinado (Brachyura), as revealed by stable isotopes ; Segregación sexual del hábitat en los centollos Maja brachydactyla y Maja squinado (Brachyura) revelada mediante isótopos estables
1 PS Fabra i Puig, 344, Barcelona, Spain. E-mail: [email protected] 2 Institut de Ciències del Mar, CSIC. Passeig marítim de la Barceloneta 37-49. 08003 Barcelona, Spain. 3 IRTA, Cultius Aquàtics, Ctra. Poble Nou, km 5.5, 43540 Sant Carles de la Ràpita, Tarragona, Spain. 4 Departament de Biologia Animal and Institut de Recerca de la Biodiversitat (IRBio), Faculty of Biologia, University of Barc...
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ژورنال
عنوان ژورنال: Marine Biology
سال: 2010
ISSN: 0025-3162,1432-1793
DOI: 10.1007/s00227-010-1499-0