Marine Biodiversity and Ecosystem Functioning
EU Network of Excellence

 
Main Menu

· Home
· Contacts
· Data Systems
· Documents
· FAQ
· Links
· MarBEF Open Archive
· Network Description
· Outreach
· Photo Gallery
· Quality Assurance
· Register of Resources
· Research Projects
· Rules and Guidelines
· Training
· Wiki
· Worldconference

 

Register of Resources (RoR)

 People  |  Datasets  |  Literature  |  Institutes  |  Projects 

[ report an error in this record ]basket (0): add | show Print this page

Establishing the baselines of Diplolaimella dievengatensis (Nematoda: Monhysteridae) for life-history experiments
Oliveira, N.R.; Cunha, B.P.; Vilas-Boas, A.C.; Gallucci, F.; Monteiro, L.; Custodio, M.R.; Fonseca, G. (2021). Establishing the baselines of Diplolaimella dievengatensis (Nematoda: Monhysteridae) for life-history experiments. Zool. Anz. 293: 303-313. https://dx.doi.org/10.1016/j.jcz.2021.07.002
In: Zoologischer Anzeiger. Gustav Fischer Verlag: Jena. ISSN 0044-5231; e-ISSN 1873-2674
Peer reviewed article  

Available in  Authors 

Keywords
    Diplolaimella dievengatensis Jacobs, Van de Velde, Geraert & Vranken, 1990 [WoRMS]; Nematoda [WoRMS]
    Marine/Coastal
Author keywords
    Estuarine nematode cultures; Free-living nematodes; Life cycle; Morphometry; 18S

Authors  Top 
  • Oliveira, N.R.
  • Cunha, B.P.
  • Vilas-Boas, A.C.
  • Gallucci, F.
  • Monteiro, L.
  • Custodio, M.R.
  • Fonseca, G.

Abstract
    Biological data about nematode populations are generally very scarce. Once species are isolated and cultivated in laboratories, they are used in experimental assays without deeper prior knowledge of their life-history characteristics. Hence, in this study, we aimed to determine the life history and population characteristics, as well as to evaluate the morphometric and molecular aspects (18S rDNA) of a free-living estuarine nematode species Diplolaimella dievengatensis. This species was isolated from an estuary in Southeastern Brazil and cultivated in the laboratory under conditions similar to its local environment. The obtained data was compared with specimens from Belgium and Pakistan that were available in the literature. For the Pakistani strain, only morphometric parameters were available. The intrinsic rate of natural increase (individuals per day−1) was slightly higher for the Brazilian population (rm = 0.41 ind/day) than for the Belgium population (rm = 0.348 ind/day), probably due the higher generation time (14 days) of the Belgium population when compared to the Brazilian individuals (10.3 days). Brazilian population showed a linear and continuous pattern of somatic growth, different from the exponential growth reported for the Belgium population. The analysis of morphometric data of D. dievengatensis individuals from the three distinct locations (Brazil, Belgium and Pakistan) showed large variability. The multivariate analysis showed that the Brazilian specimens were isometrically larger than Pakistani and Belgian ones. Nevertheless the morphometric variables used for the diagnosis, such as a and c rates, overlapped among them. Molecular comparison of the 18S sequence showed more than 99% similarity of the Brazilian specimens with the Belgium sequences from the Genbank. Acknowledging such intraspecific variability across the different dimensions may help to understand distinct responses of the population in nature.

All data in the Integrated Marine Information System (IMIS) is subject to the VLIZ privacy policy Top | Authors 


If any information here appears to be incorrect, please contact us
Back to Register of Resources
 
Quick links

MarBEF WIKI

Erasmus Mundus Master of Science in Marine Biodiversity and Conservation (EMBC)
Outreach

Science
Responsive Mode Programme (RMP) - Marie Nordstrom, copyright Aspden Rebecca

WoRMS
part of WoRMS logo

ERMS 2.0
Epinephelus marginatus Picture: JG Harmelin

EurOBIS

Geographic System

Datasets

 


Web site hosted and maintained by Flanders Marine Institute (VLIZ) - Contact data-at-marbef.org