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The effects of temperature and photoperiod on egg hatching success, egg production and population growth of the calanoid copepod, Acartia grani (Calanoida: Acartiidae)

2017; Wiley; Volume: 49; Issue: 1 Linguagem: Inglês

10.1111/are.13437

1365-2109

Natacha Nogueira, Bernardo Sumares, Carlos Andrade, António Afonso,

Fish Ecology and Management Studies

Aquaculture ResearchVolume 49, Issue 1 p. 93-103 ORIGINAL ARTICLE The effects of temperature and photoperiod on egg hatching success, egg production and population growth of the calanoid copepod, Acartia grani (Calanoida: Acartiidae) Natacha Nogueira, Corresponding Author Natacha Nogueira natachacnogueira@gmail.com orcid.org/0000-0002-4557-3908 CMC – Mariculture Center of Calheta, Calheta, Portugal Correspondence Natacha Nogueira, Mariculture Center of Calheta, Calheta, Portugal. Email: natachacnogueira@gmail.comSearch for more papers by this authorBernardo Sumares, Bernardo Sumares CMC – Mariculture Center of Calheta, Calheta, PortugalSearch for more papers by this authorCarlos Alberto Pestana Andrade, Carlos Alberto Pestana Andrade CMC – Mariculture Center of Calheta, Calheta, Portugal CIIMAR/CIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, PortugalSearch for more papers by this authorAntónio Afonso, António Afonso CIIMAR/CIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal ICBAS – Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, PortugalSearch for more papers by this author Natacha Nogueira, Corresponding Author Natacha Nogueira natachacnogueira@gmail.com orcid.org/0000-0002-4557-3908 CMC – Mariculture Center of Calheta, Calheta, Portugal Correspondence Natacha Nogueira, Mariculture Center of Calheta, Calheta, Portugal. Email: natachacnogueira@gmail.comSearch for more papers by this authorBernardo Sumares, Bernardo Sumares CMC – Mariculture Center of Calheta, Calheta, PortugalSearch for more papers by this authorCarlos Alberto Pestana Andrade, Carlos Alberto Pestana Andrade CMC – Mariculture Center of Calheta, Calheta, Portugal CIIMAR/CIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, PortugalSearch for more papers by this authorAntónio Afonso, António Afonso CIIMAR/CIMAR – Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal ICBAS – Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, PortugalSearch for more papers by this author First published: 24 July 2017 https://doi.org/10.1111/are.13437Citations: 6Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinkedInRedditWechat Abstract Calanoid copepods, including species of the genus Acartia, are commonly used as larval diets for marine finfish. This study aimed to determine the separate effects of water temperature (18, 22, 24, 28° ± 0.5°C) and photoperiod (24L:0D; 18L:6D; 12L:12D; 8L:18D; 0L:24D) on Acartia grani egg production (EP), hatching rate (EHR) and population growth. Egg production rate was not affected by the two abiotic parameters. A. grani eggs incubated at T24°C and T28°C were the first to achieve 50% hatching rate (23–25 hr), with significant differences at the end of the experiment (48 hr) between T28°C treatment (EHR 88 ± 5%) and T18°C treatment (EHR 65 ± 2%). However, different temperature regimes did not affect final number of individuals in population growth experiment. Still, when eggs were excluded from data, population at lower temperatures (18°C) was mainly composed by the nauplii stage (72%), while at higher temperatures (24°C and 28°C) more than 60% of the population was composed by copepodites and adults. A. grani subjected to long-day photoperiods had significantly lower EHR (16.7% at 24L:0D; 20.8% at 18L:6D) than at short-day photoperiods (52.6% at 6L:18D; 50.0% at 0L:24D). In population growth experiment, eggs were the most common life stage after 12-day culture. Lowest population number was found at constant light conditions (665.0 ± 197.1), suggesting higher metabolic rates and depletion of energy reserves in long-day conditions. This study expanded knowledge on the biological response of A. grani to separate temperature and photoperiod regimes, and provided ground to improve the culture of this potential life feed species for hatcheries. Citing Literature Volume49, Issue1January 2018Pages 93-103 RelatedInformation