COBIA (Rachycentron canadum)

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formerly characterized elovl5 elongase and ∆6 fatty acyl desaturase, were analyzed in order toelucidate the overall activation of the LC-PUFA biosynthetic pathway in cobia embryos. Our resultsindicated that expression of the LC-PUFA biosynthetic pathway in cobia embryos is initiated at 12-18h post-fertilization.201. Nguyen, H.Q., Reinertsen, H., Rustad, T., Tran, T.M. & Kjørsvik, E. (2012). Evaluation of eggquality in broodstock cobia Rachycentron canadum L. Aquaculture Research, 43(3), 371-385.Twenty egg batches spawned naturally from 17 different females over two spawning seasons wereused to evaluate the egg quality of cobia Rachycentron canadum. A reduction in egg size wasobserved towards the end of the spawning season for both years. The proportion of floating eggsdemonstrated a positive linear relationship with both yolk-sac larval survival (r 2 =0.91, P0.05) was detected between all treatments in terms of growth, vitality and survival.204. Schwarz, M.H. (2004). Fingerling production still bottleneck for cobia culture. Global AquacultureAdvocate, 7(1), 40-41.61
The cobia, Rachycentron canadum, is a high-value marine fish species with high potential forcommercial-scale culture. However, as with other marine finfish species, production issues limitindustrial expansion for cobias. While successful elsewhere, pond production is limited in the U.S.due to climatic constraints, and provides minimal production security, consistency, predictability,and disease control. This article outlines several production runs that varied in stocking density butyielded similar results of about one fingerling per liter. This low production rate is so far typical forcobia culture in the U.S. and necessitates further research into system design and protocols.205. Schwarz, M.H., Craig S.R. & Delbos, B.C. (2008). Efficacy of concentrated algal paste duringgreenwater phase of cobia larviculture. Journal of Applied Aquaculture, 20(4), 285-294.The purpose of this study was to determine if concentrated algal paste could effectively replace livealgae during the greenwater stage of cobia fingerling production without negative impact uponlarval growth or survival. Mean cobia survival per tank from 2 dph through post weaning at 28 dphfor the live algae treatment was 24.44 ± 2.43% (mean ± SD) as compared to 24.47 ± 2.48% for thealgal paste treatment. Furthermore, the number of fish produced per liter for the live algae treatmentwas 2.44 ± 0.24 fish/L compared to 2.47 ± 0.25 fish /L recorded from the algal paste treatment.Mean fish weight for cobia weanlings from the live algae treatment was 0.417 ± 0.059 g comparedto 0.411 ± 0.026 g for the algal paste treatment. These observations demonstrate that during thegreenwater stage of cobia larviculture, live algae can be completely replaced with commerciallyavailable, concentrated algal paste without negative impact upon cobia growth, survival, or resultantweanling production per unit volume.206. Tang, B.G., Chen, G. & Wu, Z.H. (2010). Application of a microdiet in cobia Rachycentroncanadum (Linnaeus, 1766) larvae rearing. Aquaculture Research, 41(2), 315-320.The purpouse of this study was to investigate the applicability of a compound diet co-used with livefood in cobia, Rachycentron canadum, diets. Cobia larvae (4.31 +- 0.0191 mm) were fed with livefood (rotifer and Artemia nauplii) and a micro diet from day 1. Starvedlarvae were treated as thecontrol group. Rotifers were enriched with Super Selco (INVE Belgium) for 4 h at a rated of 0.25 gSuper Selco per 10 5 rotifers and Artemia nauplii were enriched for 6 h at a rate of 1.5g yeast(INVE) per gram of Artemia cyst. Microdiet was approximately 150 – 250 µm in diameter with theproximate composition marked (crude protein 57.5%, crude lipid 12.4%, crude fibre 1.6%, ash13.3% and L-lysine 2.2%). Larvae were assigned to three groups and treated with starvation,feeding with microdiet and live food, respectively. Larvae were reared in 70 L plastic tanks at adensity about 70-80 ind. L -1 with sligh aereation. Food was supplied four times (at 8:00, 12:00,16:00 and 20:00 hours). Statistics were run with SPSS 11.0 software. Results revealed that cofeedinglive food and a micro diet may solve the problems of digestion and assimilation faced bymarine fish larvae fed with only formulated diets. Co-feeding live food and a microdiet mayimprove the growth, survival and may reduce the daily supply of live food.207. Weirich, C.R., Smith, T.I.J., Denson, M.R., Stokes, A.D. & Jenkins, W.E. (2004). Pond cultureof larval and juvenile cobia, Rachycentron canadum, in the Southeastern United States: initialobservations. Journal of Applied Aquaculture, 16(1-3), 27-44.The potential of growing larval and juvenile cobia, Rachycentron canadum, in ponds wasinvestigated. Larval cobia, obtained from tank spawning of wild-caught adults, were stocked 48-72-h posthatch at a rate of 700,000/ha into three fertilized 0.25-ha ponds. At one week post-stocking(WPS), fish were observed consuming formulated feed. Growth was rapid, with specific growthrates (SGR) ranging from 12.5-19.2% body weight/day. At harvest (5 WPS) fish reared in twoponds weighed 7.9 and 9.3 g and total length (TL) was 118.9 and 129.3 mm, respectively (all fishreared in remaining pond died the night prior to harvest due to aerator failure). Feed conversionratio (FCR) was 3.8 for both ponds and survival was 5.3 and 8.5%. Low survival rates were thoughtto be due primarily to cannibalism. Immediately after harvest, fish were restocked into two 0.25-haponds at a stocking rate of 14,400/ ha. Fish were fed formulated, pelleted feeds. Growth was rapidup to-9 WPS, after which pond water temperatures declined. Ponds were harvested at 13 and 15WPS, respectively. Final weight of fish was 309.9 and 362.5 g. Final TL was 343.1 and 355.7 mm.FCR was 3.8 and 4.5 and survival was 27.5 and 30.5%. Major losses of fish were associated withavian predators and possibly a toxic algal bloom. Results of trials indicate that cobia larvae andjuveniles can be reared in pond-based culture systems, however additional research is needed torefine this approach.62
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COBIA (Rachycentron canadum)A SELEC
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SUBJECT INDEXPage1. General biology
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discontinuous germinal epithelium,
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15. Darden, T.L., Walker, M.J., Bre
Page 10 and 11:
The partial toxicity tests of coppe
Page 12 and 13:
30. Franks, J.S., Warren, J.R. & Bu
Page 14 and 15: 37. Hou, Y., Feng, J., Ning, Z., Ma
Page 16 and 17: Cobia, Rachycentron canadum, is an
Page 18 and 19: The spawning season, late June thro
Page 20 and 21: of IMP to inosine and hypoxanthine
Page 22 and 23: frequency distributions of males an
Page 24 and 25: showed that cobia fed the diet cont
Page 26 and 27: subsp. damselae and may be useful i
Page 28 and 29: 83. George, P.V. & Nadakal, A.M. (1
Page 30 and 31: market-size cobia cultured in Erkan
Page 32 and 33: within 72 hours. This phospholipase
Page 34 and 35: Eight species of Hemiuroidea are re
Page 36 and 37: performance standards for antimicro
Page 38 and 39: Taiwan and China. Feed cost is the
Page 40 and 41: enefit the rural poor, whereas offs
Page 42 and 43: government, and research institutes
Page 44 and 45: 137. Kaiser, J.B. & Holt, G.J. (200
Page 46 and 47: (DHA) and vitamin E levels compared
Page 48 and 49: and simplify water management. In t
Page 50 and 51: growth rates (SGR) did not exceed t
Page 52 and 53: this paper. ANOVA showed that food
Page 54 and 55: 170. Weirich, C.R., Stokes, A.D., S
Page 56 and 57: fingerlings for grow-out. This stud
Page 58 and 59: The techniques of homology cloning
Page 60 and 61: 190. Zhang, H., Mao, L., Feng, J.,
Page 62 and 63: This suggests that the enrichment o
Page 66 and 67: 208. Weirich, C.R., Stokes, A.D., S
Page 68 and 69: trypsin activities of intestine of
Page 70 and 71: decreased gradually as fish body we
Page 72 and 73: BIA methodology can be utilized as
Page 74 and 75: cobia were 21.72 mg kg -1 , 22.38 m
Page 76 and 77: effects upon final product quality,
Page 78 and 79: than the optimal requirement of cob
Page 80 and 81: A 9-week feeding trial was conducte
Page 82 and 83: soybean meal in Cobia, Rachycentron
Page 84 and 85: 261. Sun, L., Chen, H., Huang, L.,
Page 86 and 87: fishes and invertebrates. Here we i
Page 88 and 89: 274. Watson, A.M., Buentello, A. &
Page 90 and 91: estimated to be 44.7 mg kg -1 based
Page 92 and 93: 20% of alternative protein meal, ne
Page 94 and 95: levels of methionine (0.61%, 0.83%,
Page 96 and 97: 298. Mach, D.T.N. & Nortvedt, R. (2
Page 98 and 99: acids (FFA), peroxide value (PV), t
Page 100 and 101: 068Breitenbach, B.078Brenkert, K.01
Page 102 and 103: 271Duncan, M.226Dung, L.Q.023DuPaul
Page 104 and 105: 139, 149Kilduff, P.180Kim, I.H.088K
Page 106 and 107: 265Myrseth, B.140Nabavi, S.M.B.001,
Page 108 and 109: 244Shi, C.071Shi, G.218, 262, 287Sh
Page 110: 291Xie, J.269, 270Xu, H.037, 190Xu,
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COBIA (Rachycentron canadum)

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