Use of Copepod Nauplii During Early Feeding Stage of Grouper &lt;i&gt;Epinephelus coioides&lt;/i&gt;

Toledo, Joebert D.; Golez, Ma. Salvacion N.; Doi, Miwako; Ohno, Atsushi

doi:10.2331/fishsci.65.390

Cited by 111 publications

(77 citation statements)

References 12 publications

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Section: Discussionmentioning

confidence: 99%

“…Toledo et al (1999) fed nauplii of Acartia tsuensis to larvae of orange-spotted grouper Epinephelus coioides from 2 to 6 DPH, then fed a rotifer diet for the duration of the trial. Those larvae had improved feeding incidence, growth, and survival compared with larvae fed rotifers during the entire trial (Toledo et al 1999). First-feeding larvae of turbot Psetta maxima (also known as Scophthalmus maximus) had greater growth and survival when fed Tisbe holothuriae nauplii from 3 to 6 DPH before switching to rotifers than larvae fed rotifers for the entire trial (Stottrup and Norsker 1997).…”

Section: Discussionmentioning

confidence: 99%

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Performance of Larval Florida Pompano Fed Nauplii of the Calanoid Copepod Pseudodiaptomus pelagicus

et al. 2011

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The Florida pompano Trachinotus carolinus is a highly prized marine fish species, the larviculture of which currently includes the feeding of live rotifers and nauplii of brine shrimp Artemia spp. However, no previous studies have evaluated the feeding of copepod nauplii. In this study, the growth and survival of Florida pompano larvae fed nauplii of the calanoid copepod Pseudodiaptomus pelagicus were compared with those of larvae fed the standard reference diet of enriched rotifers Brachionus plicatilis. Experiments were conducted during the first 7–9 d posthatch (DPH), a period preceding the provision of Artemia nauplii. Treatments included feeding only copepod nauplii during the first day, the first three days, and on all days, as well as copepod nauplii mixed with rotifers during the entire experiment. In addition, the dietary effects on larval fatty acid composition were examined. Feeding copepod nauplii at a density of 2.0–3.5 nauplii/mL during the first day or the first three days of feeding had advantages over feeding only rotifers. However, after approximately 3 DPH, increased quantities of nauplii were needed to provide sufficient nutrients for growth. This was demonstrated in larvae fed copepod nauplii for the entire trial, for which survival was significantly higher than for the other treatments but for which growth was significantly reduced. Larvae fed a mixture of rotifers and nauplii for the entire trial had survival similar to that of larvae fed only rotifers (∼40%); however, growth was greater in larvae fed the mixed diet, suggesting that there is a nutritional advantage to including copepods in the diet. Fatty acid analyses revealed that increased levels of docosahexaenoic acid were associated with larvae fed copepods, which probably contributed to the observed higher survival and growth. These results indicate that there are multiple benefits to feeding copepods to Florida pompano larvae.Received June 6, 2010; accepted August 10, 2010

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Section: Discussionmentioning

confidence: 99%

Section: Discussionmentioning

confidence: 99%

Performance of Larval Florida Pompano Fed Nauplii of the Calanoid Copepod Pseudodiaptomus pelagicus

et al. 2011

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“…On the other hand, benthic animals such as copepods contain more lipids, i.e., 1.6-6.6% (Shansudin et al 1997) or 3.3-13.3% (Toledo et al 1999), which is 2-10 times as much as those in algal mats.…”

Section: Discussionmentioning

confidence: 99%

Food habits of the farmer damselfishStegastes nigricansinferred by stomach content, stable isotope, and fatty acid composition analyses

Hata

Umezawa

2011

Ecological Research

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This content has not been published or submitted for publication elsewhere in any language, and all authors have contributed significantly, and are in agreement with the content of the manuscript. 2 AbstractThe territorial damselfish, Stegastes nigricans, maintains algal farms by excluding invading herbivores and weeding unpalatable algae from its territories. In Okinawa, Japan, S. nigricans farms are exclusively dominated by Polysiphonia sp., a highly digestible filamentous rhodophyte. This study was aimed at determining the diet of S.nigricans in Okinawa and its dependency on these almost-monoculture algal farms based on stomach contents and chemical analyses. Stomach content analyses revealed that all available food items in the algal farms (i.e., algae, benthic animal inhabitants, trapped detritus) were contained in fish stomachs, but amorphous organic matter accounted for 68% of the contents. Therefore, carbon and nitrogen stable isotope ratios and fatty acid (FA) compositions were analyzed to trace items actually assimilated in their bodies. Stable isotope analyses showed that benthic animals were an important food source even for this farmer fish. Two essential FAs (EFA), 20:4n6 and 20:5n3, which are produced only by rhodophytes among available food items, were rich in the muscle tissue of S. nigricans as well as in algal mats and detritus, suggesting that algal mats contribute EFAs to S. nigricans directly and indirectly through the food web. In conclusion, S. nigricans ingested algal mats, detritus and benthic animals maintained within its farm. Algae and detritus were original sources of EFAs, and benthic animals, which were much more abundant in the farms than in outside territories, provided a nitrogen-rich dietary source for the fish.

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“…This group includes snappers of the Lutjanidae family (Schipp, Bosmans, & Marshall, 1999), snooks of the Centropomidae family, combers and groupers of the Serranidae family (Toledo, Golez, Doi, & Ohno, 1999), and Pacific fat sleepers or Dormitator latifrons of the family Eleotridae (Rodríguez Montes de Oca, Medina-Hernández, Velázquez-Sandoval, López-López, Román-Reyes, Dabrowski, & Haws, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Reyes¹,

Monteon²,

Urreta³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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The effect of different salinities on growth, crude protein and total energy on a Mexican strain of the minute rotifer Proales similis (GenBank KM078762) were evaluated. The experiment was conducted at 5, 15, 25 and 35 psu, with five replicates. Rotifers were fed twice a day with Nannochloropsis sp., temperature, dissolved oxygen and pH values were maintained at 25±1°C, 5±1 mg L -1 and 8±1 respectively. Results show that salinity does not affect the intrinsic rate of population growth (r=0.46 to 0.51 day -1 ) and duplication time (Dt=1.36 to 1.51 days) for P. similis. Maximum density (Dmax) values were lower at 35 psu (1,703 rotifers ml -1 ), whereas Dmax values were between 2,488 to 2,560 rotifers ml -1 at 5, 15 and 25 psu. Crude protein fluctuated between 25.3 and 42.8% dry biomass (DB), while energy content varied between 11.8 and 19.9 J mg -1 DB; values were significantly lower at 35 psu. Observed population growth parameters and the protein and energy content between 5-25 psu, indicate that P. similis can be successfully reared below 35 psu, making P. similis very suitable when fish larvae require a small rotifer due to sizing of mouth gap at the beginning of exogenous feeding.

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Use of Copepod Nauplii During Early Feeding Stage of Grouper <i>Epinephelus coioides</i>

Cited by 111 publications

References 12 publications

Performance of Larval Florida Pompano Fed Nauplii of the Calanoid Copepod Pseudodiaptomus pelagicus

Performance of Larval Florida Pompano Fed Nauplii of the Calanoid Copepod Pseudodiaptomus pelagicus

Food habits of the farmer damselfishStegastes nigricansinferred by stomach content, stable isotope, and fatty acid composition analyses

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