Nutrient allocation in the gonads of the sea urchinArbacia dufresniiin different stages of gonadal development
| Autor: | María Enriqueta Adela Díaz de Vivar, Maité Latorre, Tamara Rubilar, Lucía Epherra, Micaela Parra, Damián G. Gil |
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| Rok vydání: | 2014 |
| Předmět: |
endocrine system
education.field_of_study biology urogenital system Ecology Population Zoology Arbacia dufresnii biology.organism_classification biology.animal Biochemical composition Animal Science and Zoology Development of the gonads education Sea urchin geographic locations Nutrient allocation Developmental Biology |
| Zdroj: | Invertebrate Reproduction & Development. 59:26-36 |
| ISSN: | 2157-0272 0792-4259 |
| DOI: | 10.1080/07924259.2014.980010 |
| Popis: | This study reports nutrient allocation in different stages of gonadal development for two populations of the sea urchin Arbacia dufresnii off the Patagonian coast of Argentina (Nuevo Gulf and San Jorge Gulf). The biochemical composition of gonads was used to assess nutrient allocation by measuring ash, soluble protein, lipid and trichloroacetic acid-soluble carbohydrate concentrations, and absolute contents over a 24-month period. Reproductive output in terms of energy was calculated for females. Results were correlated with histological stage of the gonads. Soluble proteins were the main component for the Nuevo Gulf population while unmeasured organic material (i.e. insoluble proteins and nucleic acids, especially in testes) was prevalent in gonads from San Jorge Gulf. Soluble protein and lipid concentrations followed the gonadal cycle, while carbohydrate concentration was almost negligible, especially in the Nuevo Gulf population. The different patterns in the gonadal cycle in the two populations were r... |
| Databáze: | OpenAIRE |
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