Title
Embryonic development and effect of temperature on larval growth of the Peruvian anchovy Engraulis ringens
Date Issued
01 December 2021
Access level
open access
Resource Type
journal article
Author(s)
Instituto del Mar del Perú
Instituto del Mar del Perú
Instituto del Mar del Perú
Publisher(s)
John Wiley and Sons Inc.
Abstract
Understanding aspects of the biology of early life stages of marine fish is critical if one hopes to reveal the factors and processes that impact the survival and recruitment (year class) strength. The Peruvian anchovy (Engraulis ringens) is a key species in the Humboldt current system, and the present study provides the first description of the embryonic and larval development of this species reared in captivity. Embryonic and early exogenous feeding stages of larvae were illustrated in detail at 18.5°C. Hatching was completed within 42 and 48 h post-fertilization at 18.5 and 14.5°C, respectively. Mean ± 95% C.I. standard length (LS) at hatch (3.40 ± 0.10 mm at 18.5°C and 2.76 ± 0.34 mm at 14.5°C) was significantly different between the two temperatures. Larval behaviour was assessed at 18.5°C; at the onset of exogenous feeding [3 days post-hatch (dph)], larvae were fed small, motile dinoflagellates, Akashiwo sanguinea. At 7 dph, larvae started to feed almost exclusively on zooplankton (rotifers and Artemia nauplii). Larval activity increased with age, and the first sign of schooling was noted at 31 dph (18.56 mm LS) at 18.5°C. Temperature had a significant effect on size-at-age, but not on body shape (depth to LS ratio). The size-at-age data for larvae (this study) was used to parameterize a temperature-corrected von Bertalanffy growth function for Peruvian anchovy, the accuracy of which was assessed for juveniles and adults (literature values).
Start page
1804
End page
1821
Volume
99
Issue
6
Language
English
OCDE Knowledge area
Biología marina, Biología de agua dulce, Limnología Acuicultura
Scopus EID
2-s2.0-85114108017
PubMed ID
Source
Journal of Fish Biology
ISSN of the container
00221112
Sponsor(s)
The authors thank David Mamani Chan for his participation in the design of egg collectors and for the broodstock maintenance. Many thanks to Gheraldine Ynga, Alex Niño, Wilmer Gaspar and Ruth Alejos from “Alimento Vivo” laboratory of IMARPE for providing live food for the larvae, and to Angelica Castro and Melissa Montes from “Cultivo de Peces” laboratory for their helpful advice. The authors also would like to thank the members of the CUSCO project for helpful discussion on this research, Laure Pecquerie for her scientific support, Lucero Achaya for the drawing of the rearing tank, and François Colas for language review of the manuscript. This work was supported by the “PpR de Acuicultura” of IMARPE. F.R. was funded by the Institut de Recherche pour le Développement (LMI‐DISCOH and JEAI DYSRUP). Funding for C.O. and M.A.P. was received by the German BMBF project CUSCO (FKZ: 03F0813B).
Sources of information: Directorio de Producción Científica Scopus