Catalogus

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.

log in

Publicaties | Kaarten

nieuwe zoekopdracht

[ meld een fout in dit record ]

mandje (0): toevoegen | toon

---

Mass production of competent larvae of the sea urchin Lytechinus variegatus (Echinodermata: Echinoidea) Buitrago, E.; Lodeiros, C.; Lunar, K.; Alvarado, D.; Indorf, F.; Frontado, K.; Moreno, P.; Vasquez, Z. (2005). Mass production of competent larvae of the sea urchin Lytechinus variegatus (Echinodermata: Echinoidea). Aquacult. Int. 13(4): 359-367. https://dx.doi.org/10.1007/s10499-004-6551-y In: Aquaculture International. Springer: London. ISSN 0967-6120; e-ISSN 1573-143X

---

Beschikbaar in	Auteurs
VLIZ: Non-open access 352218 [ aanvragen ]

---

Trefwoorden

Aquaculture Culture Culture Developmental stages > Larvae Properties > Physical properties > Density Venezuela Lytechinus variegatus (Lamarck, 1816) [WoRMS] Venezuela [Marine Regions] Marien/Kust

---

Auteurs		Top
Buitrago, E. Lodeiros, C. Lunar, K. Alvarado, D.	Indorf, F. Frontado, K. Moreno, P. Vasquez, Z.

---

Abstract

We evaluated the mass production of competent larvae of the sea urchin Lytechinus variegatus cultured at three initial densities (0.25, 0.5, and 1 larvae per ml) and fed Chaetoceros muelleri. Survival, length, dry weight of larvae, and larval stage index (LSI) were estimated in each treatment as a function of the density. Density decreased during the experiment due to mortality, but the percentage was similar in all three treatments (68.5, 66.7, and 76.0%). The experiment was stopped at 13 days after fertilization, when most of the larvae were competent and had settled. There were no significant differences in survival (exceeded 65% in all treatments), length and larval stage index among treatments. However, larvae weight in the two low density treatments (1.1 ± 0.11 mg and 1.2 ± 0.05 mg, respectively) was greater than the high density treatment (0.59±0.376 mg). This study demonstrates that competent larvae of Lytechinus variegatus can be produced with less than 25% mortality in 13 days when cultures are started at densities of 0.25–1 larvae/ml. Culturing at higher densities (0.5–1 larvae/ml) had no apparent disadvantages and would reduce the cost of production.

---

Alle informatie in het Integrated Marine Information System (IMIS) valt onder het VLIZ Privacy beleid

Top | Auteurs