Egg production, egg hatching success and population increase of the tropical paracalanid copepod, Bestiolina similis (Calanoida: Paracalanidae) fed different microalgal diets

A series of experiments was conducted to evaluate the suitability of ten microalgal diets, including 4 monoalgal, 5 binary and 1 tri-algal diet, for the culture of the tropical paracalanid copepod Bestiolina similis. The four monoalgal diets were the Tahitian strain of Isochrysis sp. (T-Iso), Pavlov...

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Veröffentlicht in:Aquaculture 2009-12, Vol.297 (1), p.169-175
Hauptverfasser: Camus, Thomas, Zeng, Chaoshu, McKinnon, A. David
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description A series of experiments was conducted to evaluate the suitability of ten microalgal diets, including 4 monoalgal, 5 binary and 1 tri-algal diet, for the culture of the tropical paracalanid copepod Bestiolina similis. The four monoalgal diets were the Tahitian strain of Isochrysis sp. (T-Iso), Pavlova 50 (Pav), Tetraselmis chuii (Tet) and the diatom Chaetoceros muelleri (Chaet), the 5 binary diets were Tet + T-Iso, Tet + Pav, T-Iso + Pav, Chaet + Tet and Chaet + Pav while the tri-algal diet was T-Iso + Tet + Pav. After feeding B. similis with 10 algal diets for 3 days, 24 h egg production rate (EPR, eggs female − 1 day − 1 ) was obtained for each diet treatment by averaging the egg output of 6 individual females (replaced daily) for 4 consecutive days. The tri-algal diet T-Iso + Tet + Pav produced the highest EPR (44.1 eggs female − 1 day − 1 ), which was significantly higher than any other diets tested ( p < 0.05). Highest 48 h and 96 h egg hatching rates (EHR) were also found from the eggs produced by B. similis fed with T-Iso + Tet + Pav (48 and 96 h EHR = 91.0% and 96.3% respectively) and significant differences in 48 h EHR were detected for 5 out of the 9 other diets tested, while for 96 h EHR, only for 2 diets. Population increase was determined over a 12 day culture period for 10 initial B. similis adults (7 females and 3 males) and the result showed that the tri-algal diet T-Iso + Tet + Pav produced significantly higher population number by the end of 12 days than any of the mono-algal or binary diets tested ( p < 0.05). When all developmental stages were included (including eggs), the tri-algal diet produced a population increase from 10 to 887 over the 12 days. The binary diet Tet + T-Iso was the second most productive diet, providing a total population increase from 10 to 541, which was significantly higher than the rest of the diets, except that of Pav + T-Iso (479), T-Iso (334) and Chaet + Pav (285) ( p > 0.05). Based on the current results, it is suggested that among the diets tested, the tri-algal diet of T-Iso + Tet + Pav was the best for the culture of B. similis.
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David</creatorcontrib><title>Egg production, egg hatching success and population increase of the tropical paracalanid copepod, Bestiolina similis (Calanoida: Paracalanidae) fed different microalgal diets</title><title>Aquaculture</title><description>A series of experiments was conducted to evaluate the suitability of ten microalgal diets, including 4 monoalgal, 5 binary and 1 tri-algal diet, for the culture of the tropical paracalanid copepod Bestiolina similis. The four monoalgal diets were the Tahitian strain of Isochrysis sp. (T-Iso), Pavlova 50 (Pav), Tetraselmis chuii (Tet) and the diatom Chaetoceros muelleri (Chaet), the 5 binary diets were Tet + T-Iso, Tet + Pav, T-Iso + Pav, Chaet + Tet and Chaet + Pav while the tri-algal diet was T-Iso + Tet + Pav. 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David</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Egg production, egg hatching success and population increase of the tropical paracalanid copepod, Bestiolina similis (Calanoida: Paracalanidae) fed different microalgal diets</atitle><jtitle>Aquaculture</jtitle><date>2009-12-01</date><risdate>2009</risdate><volume>297</volume><issue>1</issue><spage>169</spage><epage>175</epage><pages>169-175</pages><issn>0044-8486</issn><eissn>1873-5622</eissn><coden>AQCLAL</coden><abstract>A series of experiments was conducted to evaluate the suitability of ten microalgal diets, including 4 monoalgal, 5 binary and 1 tri-algal diet, for the culture of the tropical paracalanid copepod Bestiolina similis. The four monoalgal diets were the Tahitian strain of Isochrysis sp. (T-Iso), Pavlova 50 (Pav), Tetraselmis chuii (Tet) and the diatom Chaetoceros muelleri (Chaet), the 5 binary diets were Tet + T-Iso, Tet + Pav, T-Iso + Pav, Chaet + Tet and Chaet + Pav while the tri-algal diet was T-Iso + Tet + Pav. After feeding B. similis with 10 algal diets for 3 days, 24 h egg production rate (EPR, eggs female − 1 day − 1 ) was obtained for each diet treatment by averaging the egg output of 6 individual females (replaced daily) for 4 consecutive days. The tri-algal diet T-Iso + Tet + Pav produced the highest EPR (44.1 eggs female − 1 day − 1 ), which was significantly higher than any other diets tested ( p &lt; 0.05). Highest 48 h and 96 h egg hatching rates (EHR) were also found from the eggs produced by B. similis fed with T-Iso + Tet + Pav (48 and 96 h EHR = 91.0% and 96.3% respectively) and significant differences in 48 h EHR were detected for 5 out of the 9 other diets tested, while for 96 h EHR, only for 2 diets. Population increase was determined over a 12 day culture period for 10 initial B. similis adults (7 females and 3 males) and the result showed that the tri-algal diet T-Iso + Tet + Pav produced significantly higher population number by the end of 12 days than any of the mono-algal or binary diets tested ( p &lt; 0.05). When all developmental stages were included (including eggs), the tri-algal diet produced a population increase from 10 to 887 over the 12 days. The binary diet Tet + T-Iso was the second most productive diet, providing a total population increase from 10 to 541, which was significantly higher than the rest of the diets, except that of Pav + T-Iso (479), T-Iso (334) and Chaet + Pav (285) ( p &gt; 0.05). Based on the current results, it is suggested that among the diets tested, the tri-algal diet of T-Iso + Tet + Pav was the best for the culture of B. similis.</abstract><cop>Amsterdam</cop><pub>Elsevier B.V</pub><doi>10.1016/j.aquaculture.2009.09.018</doi><tpages>7</tpages></addata></record>
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source Elsevier ScienceDirect Journals Complete
subjects Algae
Animal aquaculture
Animal populations
Animal productions
Animal reproduction
Aquaculture
Bacillariophyceae
Bestiolina similis
Biological and medical sciences
Calanoida
Chaetoceros muelleri
Copepod
Copepoda
Crustacea
Crustaceans
Diet
Egg hatching rate
Egg production
feed composition
fish culture
fish feeding
fish larvae
Fundamental and applied biological sciences. Psychology
General aspects
Invertebrates
Isochrysis
mariculture
Marine
marine fish
microalgae
Microalgal diet
Paracalanidae
Pavlova
Population increase
Studies
Tetraselmis chuii
title Egg production, egg hatching success and population increase of the tropical paracalanid copepod, Bestiolina similis (Calanoida: Paracalanidae) fed different microalgal diets
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