کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8493264 | 1552797 | 2018 | 33 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
The importance of copepods as live feed for larval rearing of the green mandarin fish Synchiropus splendidus
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: The importance of copepods as live feed for larval rearing of the green mandarin fish Synchiropus splendidus The importance of copepods as live feed for larval rearing of the green mandarin fish Synchiropus splendidus](/preview/png/8493264.png)
چکیده انگلیسی
The green mandarin fish, Synchiropus splendidus, is a popular marine aquarium species, but currently sourced largely from the wild. To establish a reliable feeding regime for its larvae in captivity, a series of experiments were conducted. In the 1st experiment, newly hatched larvae were fed either unenriched rotifers (ss-type), rotifers enriched with Algamac 3000 or a mixture of commercial enrichments. An unfed control was also set up, which suffered a total mortality by 5â¯day post-hatching (DPH). All feeding treatments had similar low survival (<3.3%) by 11 DPH, suggesting rotifer enrichment bore little benefits. In the 2nd experiment, larvae were fed enriched and unenriched rotifers at 10â¯mLâ1 and a mixed diet of 2 copepods (nauplii and copepodites of Parvocalanus crassirostris)â¯+â¯8â¯rotifersâ¯mLâ1. The copepods co-feeding with rotifers treatment showed dramatically improved survival (50%) as compared to rotifer feeding only treatments (â¤5.6%) by 12 DPH (pâ¯<â¯0.01). The copepodsâ¯+â¯rotifers diet also generated significantly larger larvae (pâ¯<â¯0.01). The 3rd experiment aimed at determining the minimum quantity of copepods required for co-feeding with rotifers. Five treatments of copepods provided at 0, 0.1, 0.5, 1.0 and 2.0â¯mLâ1 with rotifers making up the rest of a total of 10â¯preyâ¯mLâ1 were set up. Larval survival to 11 DPH were significantly higher in the 2 copepodsâ¯+â¯8â¯rotifersâ¯mLâ1 and 1 copepodsâ¯+â¯9â¯rotifersâ¯mLâ1 treatments (52% and 48%) than other treatments (<19%) while no significant difference was detected between the two treatments. Larval growth was not significantly different among all copepod feeding treatments, even copepods were provided at only 0.1â¯mLâ1, and they were all significantly higher than the rotifer feeding only treatment (pâ¯<â¯0.05). Our results demonstrated the importance of copepods as prey for rearing early larval S. splendidus and suggested that they should be co-fed at least 1.0â¯mLâ1 to ensure good survival.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volume 491, 1 April 2018, Pages 65-71
Journal: Aquaculture - Volume 491, 1 April 2018, Pages 65-71
نویسندگان
Chaoshu Zeng, Luchang Shao, Amanda Ricketts, Jonathan Moorhead,