99 lines
3.2 KiB
Plaintext
99 lines
3.2 KiB
Plaintext
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Chapter 13
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AQUACULTURE
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wnoeyer dlaroms haw lo cumvalz lhe eel
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sl-llnlld gel a Nnbel Pm. dnn'l yon flunk?
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manna Morale. eel (Ml, Tokyo)
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Cnmsh larmlrlg ll lmllg; eyerymlng aelore or
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mar la lusl wllung.
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(Don Carr, ultnpwnwr, Eagle Pass,Texas Quole m
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Huke and snerwln, mm
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The hlghcsl llall pmducuon per nectar: can unly
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be olaulrled by ualng . mmhhuuon ofspccks or
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dlllererll leedlrlg habits,
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lawn-ye, 19m
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Wmn eonsaryallarl and lrrlgauon la ule llleolmd
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o1 agncullure. sealer can he laxen as me baalr
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crop. and axnund ll dEvzloped lnduslry, anlmal
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husbandry. lorealry. aquacullure. and amer
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lnleg-aled oeeupauorls,
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(Maolserllny
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131
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INTRODUCTION
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nae lulu wnLANDs eoyels lxllll llalllral and a"-
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lllelal lmpdundmenls a! waler \akzs, ponds, boas,
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swamps. marshes, and me shallnw waler or lnlemdal
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In: a! ssnlallel and mar-me malslles The empnasls
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nele ls on lllose areas used by people lor fangmg and
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nsllelannlns. Manse M me mplexizy ol lne wellands
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envllnnmenl, and or me speells wllnln ll, an allelnpl is
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made lo cove! some 0! lne deslgn and plannlng
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pnmples and k‘ reslnsl desenpllons lo a relanyely lew
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syslems rlle brudmg and Minn; plany one speeles ls
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also omllled, as a eumprellenswe speelallsed llleranlle
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exlsls ml llns aspeel or aquacullure
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Extepl ln vary layoured areas, or on reeenlly
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ghaalzd smelds. waler as ponds ls a "mum pm at llle
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458
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lalsl landscape, zflhmlgh we are (omlamly mousing
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llle am at lmpdnndrnenls ln an allempl lo mpe wlln
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llle enngy demands and warer supply lo ellres and
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lndnslry. ln .mpollnded areas, on wex reruns. and ln
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ranals and raseways, waler ceases to be a mzmly
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emslve lnllllance and beeumes a very produdlve
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mednlrn lor planl and anlmal rlllnlrl-s Amled wllll
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walel are lnose spemllsed planls and annuals mm
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are adaplod lo or seek out waler malglns, shallows, and
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llle waler meadows lplnnsl wnlrn are lnnndaled ln
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floods.
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01 all existing syslems. leapleal rdlnldresl and
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shallowewalel Iqflllu‘ :nvlmnmznki nave llle glealesl
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nalnral ylelds. Mangrove swamps, marshcs, and
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aslllarles pwduce somellrnes prodigious biomass or
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greal complexlly. (ml allllndes lo llaese syslems has
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nlsloeleally been imbwllem, and slnre lne .nyennon pl
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lne buckm dndg: and bulldmr, lypleally dammve.
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Many malshrs. esnlarles, sallllals and ponds have been
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dralned or deeply flooded lo snll onr pnyale purposes,
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allen ln disregard ell lllelr loul ylelds and villas Only
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ln recenl runes have we begun loappleslale «rm a gym
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many or our olhEr acllvllles, snell as salmonld and
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lnslnlae llsllel-les, depend on me cansemllon ol llle
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wmllnd hablhl
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For mlllclua, we have peellpled llle sllolellnes and
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lslands ol marshes, and devrloped (amplex elyllls-
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allons on me lloodplalns and dellas al m-wr vivlrs.
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Swamps have always ' ded a vanely ol foods lar
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people One al the bases lar me mncrpl or bmmgmn ls
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lllal ul WATEYSHED and llns loo l: an anrwnl namral
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dlvlsion ul lnaes and languages cdoperanve
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eamlmlnllles and bmmgmml demperaeles have be"
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based on waler nghl§,zs have llydlanlle lyrannles, odlll
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exl5| |oday.
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There .s an lnlllnale and lndlssolnhle Ilnk Mum]!
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me neallll 0! a nyer, and lne hallh ol me cilchmml:
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nele we can some lno Ixural lrnlh a! me ransepl ell llle
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~npslreaal and downslream cosh“ ol our Arlwitu's',
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