Zoeken
Zoeken kan via de modus 'eenvoudig zoeken' (één veld) of uitgebreid via 'geavanceerd zoeken' (meerdere velden). Zo kan je bv. zoeken op een combinatie van een auteursnaam (auteur), een jaartal (jaar) en een documenttype.
Boekenmand
Nuttige resultaten kan je aanvinken en toevoegen aan een mandje. De inhoud hiervan kan je exporteren of afdrukken (naar bv. PDF).
RSS
Op de hoogte blijven van nieuw toegevoegde publicaties binnen uw interessegebied? Dit kan door een RSS-feed (?) te maken van jouw zoekopdracht.
nieuwe zoekopdracht
Identifying individuals of the sea urchin Centrostephanus rodgersii with high-quality roe in New South Wales, Australia
In: Fisheries Research. Elsevier: Amsterdam. ISSN 0165-7836; e-ISSN 1872-6763
|  |
| Trefwoorden |
Centrostephanus rodgersii (A. Agassiz, 1864) [WoRMS]
Marien/Kust |
| Author keywords |
Roe; Quality; Sea urchin; Centrostephanus rodgersii; Management |
| Auteurs | | Top |
- Blount, C.
- Worthington, D.
|
|
|
| Abstract |
The quality of sea urchin roe determines its value at market, but it is not visible to commercial divers during harvest. To aid efficiency of harvesting, the relationship between three important attributes of the quality of roe (colour, texture and granularity) and several covariates was investigated for Centrostephanus rodgersii in New South Wales, Australia. The covariates included three physical attributes of the sea urchin (roe weight, test diameter and total weight), as well as the habitat, location and reproductive period. There were significant relationships among the measures of roe quality and among the covariates. The preferred colour of roe was associated with poor granularity and texture, and roe weight was strongly associated with test diameter, reproductive period and habitat. Generalised linear models were used to estimate the probability of selecting each category of roe quality for a sea urchin with a given set of covariates. In combination, roe weight and test diameter accounted for most variation in roe quality explained by the covariates. Sea urchins with smaller test diameters and heavier roe were more likely to contain roe of a preferred colour, but less likely to contain roe of a preferred granularity and texture. Despite this contrast, physical characteristics of sea urchins and their local habitat can be used by commercial divers to enable the selection of individuals with a greater probability of containing high-quality roe. |
IMIS is ontwikkeld en wordt gehost door het VLIZ.
