Fish Hatchery Management - fisheries & aquaculture

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HATCHERY OPERATIONS 93a soft-water pond. Fertilizers are often spread on the pond bottom prior tofilling, and nuisance vegetation may also be sprayed at this time.WILD.FISH CONTROLWild fish must be kept from ponds when they are filled, as they competewith cultured species for feed, complicate sorting during harvest, may introducediseases, or confound hybridization studies. Proper construction ofthe water system and filtration of inlet water can prevent the entrance ofwild fish.A sock filter is made by sewing two pieces of 3-foot-wide material into al2-foot-long cylinder, one end of which is tied closed and the other endclamped to the inlet pipe (Figure 37). lt can handle water flows up to1,000 gallons per minute. This filter should be used only on near-surfacedischarges, to prevent excessive strain on the screening.A box filter consists of screen fastened to the bottom of a wooden boxeight feet long, three feet wide, and two feet deep (Figrr.e 38), and is suitablefor water flows up to 1,000 gallons per minute. The screen bottom issupported by a wooden grid with I x 2 foot openings, which prevents excessivestress and stretching. The filter may be mounted in a fixed positionor equipped with floats. If the inlet water line is not too high above thepond water level, a floating filter is preferred. This allows the screen toremain submerged, whatever the water level, which reduces damage causedby falling water.If the water supply contains too much mud or debris and cannot be effectivelyfiltered, ponds can be filled and then treated with chemicals tokill wild fish. Rotenone is relatively inexpensive and is registered and labeledfor this purpose. It should be applied to give a concentration of 0.5to 2.0 parts per million throughout the pond. Rotenone does not alwayscontrol some fishes, such as bullheads and mosquitofish, and it requires upto two weeks to lose its toxicity in warm water and even longer in cold water.However, 2 to 2.5 parts per million potassium permanganate (f Utror)can be added to detoxify rotenone.AntimycinA is a selective poison that eliminates scaled fishes in thepresence of catfish. It does not kill bullheads, however, which are undesirablein channel catfish ponds. The chemical varies in activity in relation towater chemistry and temperature; the instructions on the label must beclosely followed. Expert advice should be sought in special cases.Chlorine in the form HTH, used at concentrations of 5 parts per millionfor as little as one hour, will kill most wild species of fish that might enterthe pond. Chlorine deteriorates rapidly and usually loses its toxicity afterone day at this concentration. Chlorine can be neutralized if need be withsodium thiosulfate. Chlorine is a nonspecific poison, and will kill most ofthe organisms in the pond, not only fish.
94 FISH HATCHERY MANAGEMENTFERTILIZATION PROCEDURESFertilization promotes fish production by increasing the quantity and qualityof food organisms. Bacteria are important in the release or recycling ofnutrients from fertilizers. Once in solution, nutrients stimulate growth andreproduction of algae which, in turn, support populations of zooplankton.UPPLY LINESOCK FILTEWATER SURFACESARAN SOCK ATTACHED TO THE WATER LINEFIGURE 37. Sock-type filters with saran screen for pondinflows, (Diagra- from Arkansas Game and <strong>Fish</strong> Commis.sion; photo courtesy of <strong>Fish</strong> Farming Experimental Station,Stuttgart, Arkansas.)
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FishHatcheryManagement
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FishHatcheryManagementRobert G. Pip
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ContentsPreface xaAbbreviations Use
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CONTENTSViiBluegill 76Channel Catfi
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coNTEN't SlxMontana Hatching Box |
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CONI'ENI'SElimination of Fish 284Pr
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CONTL,NTSXIIIAppendix B: Ammonia Io
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FISH HA,I.CH ER.I' MANAL; EM FNTThe
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Abbreviations Usedin the TextBHA bu
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Common and ScientificNames of Fishe
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FishHatch"ryManagement
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FISH HA'fCHERY MANAGE,MENTare geare
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FISH HAfCHERYMANAGEMENTdecreases-th
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t,.ISH HA'I'CI{ERY M ANAGL,M DN-I'0
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IOFISII HAI.CHERY MANAGEMENl.resist
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12 r'rsH HAICHERY MANAGEMENTalone (
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l4FISH HA'lcHERY MANACEMENI'TABLT.
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l6FTSH HATCnltRy NIANAcENlltNtWater
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l8 FISH HATCHERY MANAGEMENTFIGURE 6
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20 FISH IJAl'CIIERY MANAGIJM I]NI'F
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,2,2FISHIIAI.CIIERYMANAC;EMEN'l(whi
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FISH HATCHL,RY MANAGEMEN'IWASTE SLU
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I ISH HA'ICHIR}'N'lANAC;L,M NNTlies
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FISH HA'I'CHERY MANAGEMEN'I'R FORAT
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30 FISH HATCHERY MANAGEMENTFIGURE 1
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32 FISH HATCHERY MANAGEMENTFIGURE 1
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lJ.1IIISII IIA'I'CI I I]R\' NIANAOF
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3bIISH HA'TCHF],RY MANAG!]MEi\'ITAB
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3llFlsH llA r( Ht.R\ MANAULMLN ITAB
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40 FISHHAIcHIIRYNtANAcL,.N{Er\-Ttem
Page 65 and 66: 42 FISH HATCHERY MANAGEMENTFTGURE 1
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Page 69 and 70: FISH HATCHERYMANAGEMENTlllr,la::i;
Page 71 and 72: FISH HATCHERY MANAGEMENTDRAIN PIPES
Page 73 and 74: FISH HATCHERY MANAGEMEN'IPEN REARIN
Page 75 and 76: 52 FrsH HATcIIERy MANAcEMENT'Tast.e
Page 77 and 78: FISH HATCHERY MANAGEMENTTeSLt 7. Ty
Page 79 and 80: 56 FISH HA'I'CHERY MANAGEMENTBovn,
Page 81 and 82: 58 FIsH HATCHERY MANAGEMENTand Rox.
Page 83 and 84: 2Hatch"ryOperationsProduction Metho
Page 85 and 86: 62 FISH HATCHERY MANAGEMENTdaily, w
Page 87 and 88: 64 FISH HA.I.CHERY MANAGEMENToxygen
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Page 91 and 92: FISH HATCHERY MANAGEMENTadding fish
Page 93 and 94: FISH HATCHERY MANAGEMENTtemperature
Page 95 and 96: FISH HATCHERY MANAGEMENT3.53.0>- 2.
Page 97 and 98: 74 FISH HATCHERY MANAGEMENTTABLE IO
Page 99 and 100: FISH HATCHERY MANAGEMEN'Timproved e
Page 101 and 102: 78 FISH HATCHERY MANAGEMENTculture
Page 107 and 108: FISH HAI'CHEI{Y MANAGEMENl'several
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Page 111 and 112: FISH HATCHERY MANAGEMENTFtcuRE 35.
Page 113 and 114: FISH HA'I'CHERY MANAGEMENTponds' es
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Page 119 and 120: FISH HA'f CHLI{Y MANAGL,MEN'Iand wa
Page 121 and 122: I ISH HA'I'CHLRY NTANAGEME,NTINORGA
Page 123 and 124: 100 FISH HATcHERY MANAcIEMEN fA num
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Page 131 and 132: 108 FISH HATCHERY MANAGEMDNTFIGURE
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Page 137 and 138: t4 FISH HATCHERY MANAGEMENTfish. Mo
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44FISH HAI'CHERY MANAGEMENl'When go
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146 FISH HAI'CHERY MANAGEMENTLIN EB
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148 FISH HATCHERY MANAGEMEN'I(1) Av
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I rl0 I:lSH llA lCHl.lRY NIANi\(;U\
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52F'ISH HATCHERY MANAGF:,MENTpond.
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t54 FISH HATCHERY MANAGEMENTFIGURE
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156 FISH HA'I'CHERY MANAGEMENlThe p
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I58 FISH HATCHERY MANAGEMENTFIcunn
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160 I'ISH HATCHERY MANAGEMENIThe eg
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t62 FISH HATCHERY MANAGEMENTl0 hrs.
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164 FISH HATCHERY MANAGEMENTOvenipe
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t66 FISH HATCHERY MANAGEMENTsystems
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168 FISH HA'I'CHERY MANAGEMENTThe a
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t70FISH HATCHERY MANAGEMENTequilibr
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172 FISH HATCHERY MANAGEMENTripens
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174 FISH HATCHERY MANAGEMENTthe fis
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176 FISH HATCHERY MANAGEMENTERMINAL
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178 FISH HATCHERY MANAGEMENTSO M IT
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180 FISH HATCHERY MANAGEMENTHI RD V
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I82FISH HATCHERY MANAGEMENTA sample
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184 FISH HAI'CHERY MANAGEMENTTABLE
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186 FISH HATCHERY MANAGEMENTFrcunr
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188 FISH HATCHERY MANAGEMENTl/4" co
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190 FISH HATCHERY MANAGEMENTTAtsLE
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t92FISH HA'I'CHERY MANAGEMENTTeslr
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t94 FISH HATCHERY MANAGEMDNTillFIGU
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196 FISH HATCHERY MANAGEMENTFtcunn
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198 FISH HATCHERY MANAGEMENTFIGURE
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200 F'rsH HA'rcHERy MANAcEMENTsimil
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202 FrsH HAlcHERy MANAGEMENTCl,lnx,
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204 FISH HATCHERY MANAGEMENT-. 1977
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206 FISH HATCHERy MANAGEMENT'SAI-tL
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Nutrition and FeedingNutritionNutri
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2t0FISH HA'I'CIIERY MANAGEME,NTpell
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IISH }IA]'CHERY MANA(;EMEN'TAt this
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214 FISH HATCHERY MANAGT]MENTof pro
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2t6FISH HATCHERY MANAGEMENTfeed tha
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2lu! ISH HAl CHERY MANA(IEMliN lthe
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FISH HA'I'CHERY MANAGE,MENTNo carbo
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FISH HATCHf,RY MANAGEMEN']Body fat
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224 FISH HA t CHITRY MANAGEMIlNTLIP
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FISH HATCHERY MANAGEMENTNutrientGro
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228 F'ISH HATCHERY MANAGL,MEN'Ivita
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F'ISH HATCHERY MANAGEMEN'fr,. r; "'
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232 FISH HATCHERY MANAGEMEN'Ibreakd
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234 FISH HATCHERY MANAGEMFNTFORMULA
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236 FISH HAI'CHERY MANAGEMENT(2) Be
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238 FISH HATCHERY MANAGEMENTphysica
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240 FlsH HAT('HFRY MANAGLMI.N ITesl
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242 FISH HATCHERY MANAGEMENTTenr-E
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244 FISH HATCHERY MANAGEMENTTest E
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246 FISH HATCHERY MANAGEMENTA simpl
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248 FISH HATCHERY MANAGEMENTThe amo
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250 FISH HATCHERY MANAGEMENTFIcunt
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252 FISH HATCHERY MANAGEMENTasI-E 2
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254 FtsH HAtcHERY MANAGEMENTTABLE 3
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256 FISH HATcHERY MANAGEMENTTABLE 3
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258 FISH HATCHERY MANAGEMEN'I'TABLE
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260 FISH HATCHERY MANAGEMENTBibliog
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262 FISH HATCHERY MANAGEMENTnology
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264 FISH HATCHERY MANAGEMENTa diagn
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266 FISH HATCHERY MANAGEMEN'I'ABFtc
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FISH HATCHERY MANAGEMENT.fABLEIHI]I
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270 FISH HATCHERY MANAGEMENTin the
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FISH HATCHERY MANAGEMENTpossible ad
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274 FISH HATcHERY MANAGEMENTGeneral
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276 FISH HATCHERY MANAGE,MENltoxici
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278 FISH HATCHERY MANAGEMENTRecomme
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280 FISH HATCHERY MANAGEMENTIf it i
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282 FISH HATCHERY MANAGEMENTexterna
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FISH HATCHERY MANAGEMEN'fF aci lity
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FISH HATCHERY MANAGEMENlcleanliness
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FISH HA'I'CHERY MANAGEMEN'IImmunila
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290 FISH HATCHERY MANAGEMENTherds o
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FISH HAI'CHERY MANAGEMENTdiseases.
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FISH HATCHERY MANAGEMENTDiseases of
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296 FISH HATCHERY MANAGEMENTpetechi
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298 FISH HATCHERY MANAGEMENTCHANNEL
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FISH HATCHERYMANAGEMENTFtcunn 79. L
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FISH HATCHERY MANAC;EMEN'I'COI,UMNA
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FISH HATCHERY MANAGEMENTthe pectora
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306 FISH HATCHERY MANAGEMENTreservo
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FISH HATCHERYMANAGEMENTFIcunn 81. E
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310 FISH HATCHERY MANAGEMENTFtcunn
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31,2 F'ISH HATCHERY MANAGEMEN'IKIDN
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314 FISH HATCHERY MANAGEMEN'TFungus
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316 FISH HATCHERY MANAGEMENTFrcuRr
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320 FISH HATCHERY MANAGDMENTFIGURE
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322 FISH HATCHERY MANAGEMENTFIcunn
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FISH HATCHERY MANAGEMEN IFtcunE 95.
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FISH HA'TCHERY MANAGEMENTFIGURE 97.
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328 FISH HATCHERY MANAGEMENTFIcune
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330 FISH HATCHERY MANAGEMENTand l6
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332 FISH HATCHERY MANAGEMENTFrcuRE
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334 FISH HATCHERY MANAGEMENTARGULUS
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336 FtsH HAiCHERY MANACEMEN]DIAGNOS
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338 FISH HATCHERY MANAGEMENTI 2. B(
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lJ40}ISH HA'I CHERY MANAGENlI]N]23.
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342 FISH HATCHERY MANAGEM EN.Tshoul
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344 FISH HATCHL,RY MANAGEMENTFDL-46
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346 FISH HATCHERY MANAGEMENTHterlrw
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Transportation of LiveFishesOne ext
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350 FISH HATCHERY MANAGEMENTTrucks
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352 FISH HATCHERY NlANAC; EMEN.'f(1
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FISH HATCHERYMANAGEMENTFIcunn 110.
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356 FISH HATCHERY MANAGEMENTTempera
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358 FISH HATCHERY MANAGEMENTdistres
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360 FISH HA'TCHERY MANAGEMENTTABLE
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362 FISH HATCHERY MANAGEMENTCHANNEL
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FISH HATCHERY MANAGEMENTTASLE ,13.
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FISH HATCHERY MANAGEMEN'fTeslr 44.
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368 FISH HATCHERY MANAGEMENTBibliog
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370 FISH HATCHERY MANAGEMENTLEI'IRI
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Appendices
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376 FtsH HATcHF,Ry N,rANAcFtMriNTTa
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AppendixAmmonia IonizationTABLE B I
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380 FISH HATCHERY MANAGEMENTTanlr B
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382 FISH HATCHERY MANAGEMENTTenln B
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Appendi* DUse of Weirs to MeasureFl
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FISH HATCHERY MANAGEMENTTABLED_I.RE
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388 r'lsH HA'rcHERy MANAGEMENTTasLn
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trAppendix fNutritional Diseases an
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392 FISH HATCHERY MANAGEMENTTABLE F
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394 FISH HATCHERY MANAGEMENTTABLE F
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396 FISH HATCHERY MANAGEMENTT,\sLr:
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398 FISH HATCHERY MANAGEMENTTeslr F
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400 FISH HATCHERY MANAGEMENTTasLE F
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402 FISH HATCHERY MANAGEMENTCalcula
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TAppendix ILength-Weight TablesGuid
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408 FISH HATCHERY MANAGEMENl'Tasr-E
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410 FISH HATCHERY MANACEMENTTABLE I
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412 FISH HATCHERY MANAGEMENTTaglr I
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4t4FISH HATCHERY MANAGEMENTTenlr, I
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416 FISH HATCHERY MANAGEMENTTABLE I
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424 FISH HATCHERY MANAGEMENTTenle I
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426 FISH HATCHERY MANAGEMENTTesLB I
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428 FISH HATCHERY MANAGEMENTTanr,B
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432 FISH HATCHERY MANAGEMENTTanlr I
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434 FISH HATCHERY MANAGEMENTTesr.E
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436 FISH HATCHERY MANAGEMENTTesr-E
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438 FISH HATCHERY MANAGEMENTTllg f
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442FISH HATCHERY MANAGEMENTTABLEI-5
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444 FISH HATCHERY MANAGEMENTTasle I
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446 FISH HATCHLRY MANAGEMENTTABLE I
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448 FISH HATCHERY MANAGEMENTTenr,E
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450 FISH HATCHERY MANAGEMENTTaer-E
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452 FISH HATCHERY MANAGEMENTTeu-E I
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FISH HATCHERY MANAGEMENTT,qarn I-7.
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458 FISH HATCHERY MANAGEMENTTasr,E
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FISH HATCHERY MANAGEMENl'Tasln I-7.
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FISH HATCHERY MANAGEMENTTABLE I-8.c
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464 FISH HATCHERY MANAGEMENTTnnu, I
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466 FISH HATCHERY MANAGEMENTTest,n
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GlossaryAbdomenBelly; the ventral s
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GLOSSARY47IAmmonium The ionized for
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GLOSSARY 473BacteriocidalBacteriost
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GLOSSARY 47 5CarnivorousCarrierthe
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GLOSSARY 477Control (Experimental)
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GLOSSARY 479EctodermThe outer layer
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GLOSSARY48IFixativeA chemical agent
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GLOSSARY 483Gill RotGillsSea Branch
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G I,OSSARY4Tt5IHNImmuneImmunitystat
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GLOSSARY 487Length May refer to the
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GLOSSARY 489Mucking (Egg) The addit
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GLOSSARY 489Mucking (Egg) The addit
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492 FISH HATCHERY MANAGEMENTPerivit
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494 trsH HATcHERY MANAGEMENTRandom
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496 FISH HATCHERY MANAGEMENTSerumTh
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498 FISH HAI'CHERY MANAGEMENTSulfom
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500 r'tsH HA'rcIIIrRy N,TANACEMEN r
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IndexThe Table of Contents for this
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I N I)F,X 505Bluegill \continued)sp
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Crayfish, problem in ponds 114Densi
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INDEX 509Flow Index 67-71Forage fis
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INDEX5I IPike, northernbroodstock a
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INDEX513Salmon, chum (saa a/so Salm
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'lrout (continued)diseases: bacteri
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Walleye \continued)nutrition: disea
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