Age at first feeding of Atlantic halibut larvae

Lein, Ingrid; Holmefjord, Ivar

doi:10.1016/0044-8486(92)90127-7

Cited by 28 publications

(12 citation statements)

References 3 publications

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“…They ingested rotifers almost immediately after distribution (8 h maximum delay), and could initiate successful intestinal lipid absorption within 40 h after mouth opening and then remain alive, without further feeding for up to 9-10 days (Maurizi 2000). A similar slight increase in survival without feeding was observed with cod in green water (Lein & Holmefjord 1992).…”

Section: Resistance To Delay In First Zooplanktonic Feedingsupporting

confidence: 62%

“…In yolk-sac halibut, the clearance rate of Tetraselmis sp. ranged from 100 times (before 30 DPH) to more than 1000 times (between 30 and 43 DPH) and 60-300 times (after 43 DPH) the drinking rate (Lein & Holmefjord 1992;Reitan et al 1994). Positive correlations were noted between algal size and intergill-arch distance.…”

Section: Ingestion Of Microalgaementioning

confidence: 85%

“…In the wild or in mesocosms with a natural food chain, microalgae and the greenish remains of semi-digested phytoplankton have been found in the gut of several families of marine fish larvae, such as clupeids (Lebour 1919), engraulids (Scura & Jerde 1977), pleuronectids (Last 1978a), gadoids (Last 1978b) and scophthalmids (Last 1979). In the laboratory or in aquaculture with an oligospecific food chain, ingestion of microalgae by marine fish larvae has been reported in several species, such as the anchovy, Engraulis mordax (Moffatt 1981), menhaden, Brevoortia patronus (Stoecker & Govoni 1984), cod, Gadus morhua (van der Meeren 1991), halibut Hippoglossus hippoglossus (Reitan et al 1991;Lein & Holmefjord 1992), Diplodus sargus, Sparus aurata, Lithognathus mormyrus and Puntazzo puntazzo (Kentouri 1985). Algal concentrates have systematically been found to be the most dominant prey in the gut 1-10 days post-first feeding (DPF) in P. puntazzo and L. mormyrus (i.e.…”

Section: Ingestion Of Microalgaementioning

confidence: 99%

“…Although impossible to count precisely because of their small size (1-2 m in diameter) and large number, these cells never represented more than a few per cent of the total volume of ingested material. In yolk-sac halibut, the uptake of Tetraselmis is low before 30 DPH (Ͻ0.1% larval biomass day Ϫ1 ), reaches a peak of 1.2-4.5% larval biomass day Ϫ1 between 43 and 48 DPH, and then drops again to low values (Lein & Holmefjord 1992). In cod, up to 7% and 40% of larvae ingested Isochrysis galbana and Dunaliella salina respectively, at 1 DPH, and 93-100% ingested Nannochloris atomus at 2 and 3 DPH.…”

Section: Ingestion Of Microalgaementioning

confidence: 99%

See 3 more Smart Citations

Uses of Microalgae in Aquaculture

Muller‐Feuga¹,

Robert²,

Cahu³

et al. 2003

Live Feeds in Marine Aquaculture

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Section: Resistance To Delay In First Zooplanktonic Feedingsupporting

confidence: 62%

Section: Ingestion Of Microalgaementioning

confidence: 85%

Section: Ingestion Of Microalgaementioning

confidence: 99%

Section: Ingestion Of Microalgaementioning

confidence: 99%

See 2 more Smart Citations

Uses of Microalgae in Aquaculture

Muller‐Feuga¹,

Robert²,

Cahu³

et al. 2003

Live Feeds in Marine Aquaculture

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“…For the Atlantic halibut Hippoglossus hippoglossus (L.) arguments for both early (190 day degrees post hatching, DPH) and late (260-290 DPH) first-feeding have been put forward (Pittman et al, 1990;Lein & Holmefjord, 1992;. The arguments in favour of an early onset of exogenous feeding are based on the characterization of morphological and histological development including the presence of zymogen granules in the pancreas (Luizi et al, 1999), and a functional jaw apparatus (Kjørsvik & Reiersen, 1992).…”

Section: Introductionmentioning

confidence: 99%

Cholecystokinin and tryptic activity in the gut and body of developing Atlantic halibut larvae: evidence for participation in the regulation of protein digestion

Rojas-García

Rønnestad

2002

Journal of Fish Biology

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At 7 days after first feeding (DAFF), the peptide hormone cholecystokinin (CCK) content (fmol individual 1 ) and the tryptic activity [ mol arginine-methyl-coumarinyl-7-amide (MCA) min 1 individual 1 ] per individual gut of Atlantic halibut Hippoglossus hippoglossus larvae were low: 0·2 0·1 and 0·14 0·10, respectively. Thereafter, both parameters increased with the increase in gut mass and reached 19·67 5·58 and 2·71 0·64 at 26 DAFF, respectively. Due to the small sample size, the dry mass (M G , mg) of the individual gut could not be determined accurately at 7 DAFF. At 13 DAFF M G represented 5·5% of whole body dry mass (M W , mg) while at 26 DAFF it had increased to 23%. The mass specific tryptic activity [ mol MCA min 1 per mg dry mass (M)] in the gut increased from 2·74 1·98 at 13 DAFF to 5·00 0·78 at 26 DAFF. There was more individual variation in the mass specific CCK content (fmol M 1 ) but no significant differences were found, although the data indicated an increase (from 23·38 11·26 at 13 DAFF to 36·27 8·96 fmol M 1 at 26 DAFF). At 7 DAFF the CCK content of the gut represented c. 2% of the whole body CCK content while it increased to c. 62% of the whole body CCK content at 26 DAFF. This demonstrates that it is necessary to separate neural and gastrointestinal sources of CCK in order to determine its alimentary role in fish larvae. Trypsin activity was only found in the gut compartment. In larvae aged 45 DAFF dietary proteins delivery into the gut by tube-feeding appeared to stimulate post-prandial secretion of CCK from the gut as well as stimulate pancreatic trypsin secretion, suggesting that both factors contribute to protein digestion.

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