B e a ch shell m olltISks of ls e a nd O s ak a Bays, s o uth w c ste rtl H o n sh u,
Ja pan
】Ⅶ E R C Y V E R A R O P R E C I O
h p a rtial h lfillm e nt of t he r equ i r e m e nts
●
fo rth e deg r e e of
M [a ste r of Scie t) c e E d u c atioTI
M ie t 加iv e r sity
G r adt) ate S ch o ol of E dt) c atio 皿
D epa rt m e nt of E a rt h Scie n c e
Ja n u a ry 2 8,2 00 8
A J) V I S E R :
D R . Y tlT A E A tIO N D A
別 紙 様 式第3
論 文 目 録
三重 大学大学 院教 育学研 究 科
別 紙 様 式第4
論 文 要
三重 大学大学院教 育学研 究科
教科 教育 専攻 理科 教育 専 修 Op R ECIO M E RC Y V E R A R
A bstra ct: Al ong wi th T ok y o B ay, Is e a nd Os aka 8 ays of
s outh w e ster n H o nsh u are repre s entativ e one s in Japan . I c olle cted s a nd
be a ch sb d )s at rI Ve are a s(S a m ba sh i, Ch i yoz aki, TstI Z t) mi ga t) r a, G ote m ba ,
a nd G on tIShj) of t he w e ste r n c oa st of ls e B ay betw e en M ay 20 04 an d A pri)
2 007; t ho s e at t hre e a re a s(N ishi kino ha m a, H akotsuku ri, atld T a r ui) of t he
s o utheaster II C o a st Of O s aka B ay betw e en A tlg u St 20 0 6 a nd Ju n e 2 0 0 7. A
total of $ 1 spe cie s ar e i de nti r)ed at 13 )o c alitie s of the w e ster n c o a st of Is e
Bay, a nd 1 0 5 spe cie s at 1 0 lo c alitie s of t he s o ut he a stern c o a st of O s aka
Bay. Six alien spe cie s ar e re c ognized: CllePidula o t lyX So we rb y , P o m q c e a can aLt
'
ciLEd a (L a m ar ck), Pe m a v L'm 'dk's (L in n a et )s), X e n o stTObu s s ec w l.S
(La m a rc k), M u etTIIx p ete chL
'd L
'
s (La m ar ck) alld C w bL'c ula P u m L
'
n e a
( M 白.ller).
T A B L E O F C O N T E N T S
L I S T O F T A B L E S L I S T O F F I G U R E S L I S T O F P L A T E S
A C K N O W L E D G M E N T S A B S T R A C T
1 .I N T R O D U C T I O N 2 . M E T H O D O F S T U D Y
3 . R E S U L T S A N D D I S C U S S I O N
3 .1 S pe cie sdive r sity of Is e a nd Os aka be a ch shells
3 .2 C om pa ris o n of &equ e n cy a nd distri butio n
3 .3 Al ie n or n o n ‑native spe cie s
3 .4 M ollus c an a s s emb lage sin th e s and be a che s of Is e B ay 3 .5 M ollu s c a n a s s e mb lage sinthe s a nd be a che s of Os aka Bay
3 .6 S yste m atic n ote s ofs o m eim po rta nt spe cie s
4. S U M … Y R E F E R E N C E S
page
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ⅤトV l l 1
v i ii ix
1 2 ‑5 6 ‑2 4 2 5 ‑9 4 2 5 ‑2 7 3 3 3 3 3 4 ‑3 6 3 6 ‑3 7 3 9 ‑7 0 9 5 9 6 ‑9 9
L ist of Tab le s
Tab le 1. O c c u r r e n c e s of be a ch shells ofthe w e ste rn c o a st of Is e B ay. Tab le2 . O c cu rr e n c e s of be a ch shells ofthe s o uthe a ste rn c o a st of
O s aka B ay.
Tab le3 . C o mparis o n oftaxo n o mi c c o m po sitio n ofbe a ch shell M ollusksbetw e en Is e an d O s aka B ay .
T ab le4a. R elativ el y domi n a nt spe cie sin ls e B ay . T ab le4 b . Relativ el y do mi na nt spe cie sin Os aka Bay. T ab le5a. Sim ps on
'
s index(n ‑total nu mber of ind ividuals of a
partic ular spe cie s; N ‑total nu m ber of indi vi du als of all
spe cie sin ls e Bay .
T ab le5 b .S imps o n'sIndex(n ‑total n u mber of indivi du als of a
Pa rticularspe cie s;N ‑total nu mber of indivi du als of all
spe cie sin O s aka B ay .
T able6 . N u m ber of indivi duals(pe r1 0 sq. m) of ls e a nd O s aka B ays.
3 0 ‑3 2
8 8
L ist of F i gure s
F ig.1 . M ap of ls e B ay showl ng th e s a m pling lo cal itie s and w ate r
dep也s(in m ete r s).
F i g.2 . M ap of Os aka B ay sho w i ngthe s a mp ling lo c alitie s an d w ate r
dep 血s(in m eters).
F i g・3a・ M ap show i ng thelo c atio n of Sam ba shi be a ch, Y ok k ai ch i C ity.
F ig・3 b・ Oc cu 汀 e n C e Of be a ch shells at Sa mba sh i be a ch and sketch
oftilebe a ch.
F ig.4a. M ap show ing thelo c atio n of C hi yozak i be a ch,S u z uka C ity . F igs.4 b . O c currenc e s ofbe a ch shells at C hi yozakibe a cll and sketch
ofthebe a ch.
F ig.5a. M ap sho w i ng thelo c atio n of Ts uz u m lga ur abe a ch .
F ig.5b .O c cu汀 e n C e S Ofbe a ch shells at Tsu z um lga urabe a ch an d
sketcb ofthebe a ch .
F ig.6a. M ap show ing thelo c atio n of G ote mbabe a ch, Ts u C ity ・ F ig・6 b ・ O c c urr e n c e of be a ch shells at G ote mba be a ch a nd sketch
ofthe be a ch.
F ig・7a・ M ap showing thelo c ation of G onu sh i be a ch, M ats u s ak a C ity・
page
V l
page F i g・7 b ・ O c cu rr e n c e ofbe a ch shells at G o n u sh i be a ch a nd sketch of
也ebe a cbー.
F i g ・8a・ M ap showing the lo c atio n of N ish ik in oha m abe a ch, K aiz uka C ity ・ F i g ・8 b・ O c ct m enc e s of be a ch shells at N ish ik in oha m a be a ch and sketch
of th e be a ch .
F ig ・9a・ M ap sho w ing thelo c atio n of T ar ui‑mi nami be a ch,T ar ui C ity ・ F i g.9 b ・ O c c u m nc e of be a ch shells at T ar ui‑mi n ami be a ch aJld sketch
ofthebe a ch.
F i g ・1 0a. M ap sho w m gthelo c ation of H ak ots ukuri be a ch, Se n n a n C ity ・ F i g ・1 0 b ・ O c cu rr enc e of be a ch shells at H akots ukuri be a ch an d sketch
of the be a ch.
F ig・1 1・ G o nush i be a ch a nd sketch ofthe s a nd be a ch sho w lngthe sho r eline
a nd qu adrat(1 0 m 2)p loIIed in the s e a shore.
F i g・1 2 A ‑B ・ S pe cie s‑A re a C u rv e of be a ch shells of ls e B ay a nd Osa ka B ay・ F i g.1 3 A ‑B ・ C olle ctio n ofbe a ch shells of Is e a nd Os aka B ays・
F i g・ 1 4・ C o m po sitio n at cla s sle v el in Is e and Os akabays・ F i g. 1 5a. S pe cific c o m po sitio n in Sa m ba shi be a ch(Lo c s 1, 2,3).
F i g .1 5 b. S pe cific c o mpo sitio nin C hi yozak i be a ch(L o c ・4) A
F i g .1 5c.S pe cific c o m po sitionin Ts uzu mi ga ura be a ch(Lo c s・5,6,7)・
F i g .1 5d. S pe cific c o mpo sitio n in G ote m ba be a ch(L o c s・ 8,9,1 0).
F ig .1 5e.S pe cific C O mPO Sitio nin G o nush i be a ch(Lo c s・1 I, 1 2,1 3)・
2 2
2 3 2 4 8 3 8 7 9 1 9 1 9 2 9 2 9 3
F i g. 1 6a.S pe cific co mp o sitionin N ish ik inoha m abe ach(L o c s・1,2 ,3, 4),
F i g .1 6 b. S pe cific c o mpo sitionin T a rui‑minami(L o c sL5 ,6,7)I
F i g .1 6c.S pecific c o m po sitionin H akots uku ri be a ch(L oc s・8,9,1 0)I
L ist of P late s
Is e Bay be a ch shells
P late 1 ‑3 a nd P late exp lanatio n
O s aka Bay be a ch shells
P late 4 15 and P late explanation
7 ト7 6
7 7 ‑8 2
viii
A C K N O W t E D G M E N T S
M y sin c e r e st th anks to m y ad vis o r Pr of・ Y utak a H o nda fo r his patie n c e wi th m e
duri ng the s e p a st tw o ye a r s and critic al re ad ing of the m a n us c rlPt・I als o wi sh to tha nk prof. N obu n ari Ito and Taich ir o G oto fo r their val u ab le c o m m e nts a nd help . M y he artfelt
gr atitudetothe Soroptlmistlnte rn ado n al of M iefortheirfin ancial s up po rt・I a m indebted to p rof. E m eritu s N obutaka Ito for h is tru st and enc ou rage m e nt. M y spe cial th a nks to
R odri go Pe chon forh is help during my spe cim en c olle ction and te chnic al advic e s,to my family fo r their un failing s up port and prayer s,to all m y 丘ie nds for their unde r stan ding
and c o n c e rn a nd to alltho s e who in one w ay o r a n oth e r had exte nded their help in the
f
u lfillm ent of m y pt叩O S ein c o m l ng tO Jap m ・ A bo v e all I tha nk the Lo rd Al mig hty fo r t
h e gi 氏of str eng th a nd c o urage・
1 Ⅹ