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Fish Biology

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Fish Biology ... – PowerPoint PPT presentation

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Title: Fish Biology


1
?????????????? ??????????????????
??????????????
Fish Biology
?????? ?????????????? ????? ?????
2
????? 1 ??????????????????
?????????????? ????? ?????
3
?????? (Form)
1. Anguilliform
- ?????????????????????? (serpentine) -
???????????????????????????????????????? -
???????????? ??????
2. Fusiform
- ???????????????????????????????(tropedo
shape) - ????????????????? - ???????????? ?????,
?????, ????????
4
?????? (???)
3. Globiform
- ?????????????????? (globe shape) - ????????????
?????????????????????
4. Filiform
- ????????????????????????? (thread like) -
???????????? shipe eel
- ??????????????????????(ribbon
shape) ????????? - ???????????? ??????????
5. Trachipteriform
5
???????????????
1. Compressed form
????????????????????????????????????????
???????????? ?????, ?????,???????????
2. Depressed form
??????????????????? ???????????????????????? ???
????? ????????????????????????????????, ???????
6
????????????????????????????????????
1. ???????(head)
?????????????(snout)??????????????????????????????
?
2. ????? (trunk ???? body)
3. ??????? (tail)
7
??? (mouth)
???????????????????????? ??????????
??????????
????????????????????????
- Premaxillary bone ??????????? - Maxillary
bone ?????????????????????? - Supplementary
maxillary bone ??????????
????????????
????????????????????????
- dentary - articula
8
?? (eye)
- ?? 1 ??? ?????????????????????????????????
(midline) - ????????????????????
?????????????????????? ( soup-fin ????
nictitating membrane ?????????????????????? ????
adipose eyelids) - ?????????????????????????
(bottom dwellers) ????????????????? - ???????????
(flounders) ?????????? (Pleuroncetiformes)
?????? ???????????????????????????????????????????
?????? - ??????????????? ???????????????????
??????????????????????????????? ?????????????
9
??
(innerear ???? auditory organ)
Anterior vertical cannal
Semicircular
Posterior vertical canal
Horizontal canal
Utriculus
Vestibule
Sacculus
Lagena
10
????
?????????????????????????? ??????????????
?????????????????????????????? ????????? ?????????
?????????????????????????????? ??????????????????
?????????
????
- ?????????????? Maxillary barbel -
??????????????? Mandible barbel -
?????????????? Nasal barbel -
???????????????? Mental barbel
11
???????????????????
????? ??????????????????????????????????????????
?????????????????????? ??? ?????????????????????
??????????????
????????????????????
1. Epidermis ???????????? ? ??????????????
??????????????????? ????????????????? 2. Dermis
????????????????????????????? ???????????????????
??????????, ?????????? ??????????????????
12
?????
1. ??????????????????????? (placoid scale) 2.
?????????????????????????????? (ganoid scale
???? rhombic scale) 3. ??? cosmoid scale 4. ???
bony-ridge
13
????????????????????????????
???? ?????????????????? ??????????????????????????
? ???????????????????????????????? dernal
denticle ???????????????
???????????????????????????????????
?????????? - ?????????? ??? ganoid scale -
???????? ??? cosmine like layer - ????????? ???
isopedine ?????????? reedfish, ??? gars, ???
paddle ?????????????? ???????????? sturgeon ????
14
???????? cosmoid scale
?????????? - ???????????????????? ?????
isopedine - ?????????????????????????? ?????
layers of spnegy home - ???? cosmine -
?????????? ????? vitrodentine ????????????????????
????????????????????????????????????? ??????????
??? coelacanth,??? Latimeria chalumnae ,
??????(lung fish)
15
????????bony-ridge
?????????????????? ?????????????? enamel ???????
dentine ???????? bony ridge ??????????????????????
??????????????? ??????????? - cycloid scale
?????????????????????????????????????????? -
ctenoid scale ????????????????????????????????????
?????? cycloid scale ????????? ctenoid scale
???????????????????????? ?????????????????????????
?????????????????????
16
????????????????
?????????????????????????????????????????????????
? ?????????????????? - ????????????????????????
???????????????????????? ??? placoid - spine
?????????????? spiny dog fish - ??????????????
???? belly scute ??? lateral scute -
??????????????????????????? - ???? dermal
armature ?????????????????????? ????????????
17
????
????????????????
???????
(paired fin)
????????????????????? - ???????(abdominal), -
?????(thoracic position), - ?????(jugular
position)
????????(dorsal fin)
??????????
??????? (anal fin)
(median fin)
??????? (tail fin)
18
????????????????????????????????
1. Diphycercal ???? Protocercal caudal
fin ?????????????????????????????????????????????
?????????? ?????????????????????????????????????
???? ?????? cyclostome
2. Heterocercal caudal fin ??????????????????????
????????????????????????????? ????????????????????
??????????? ??? ??????(upper lobe)
??? ????????(lower lobe) ???? ??????? ???????
?????????????????
19
3. Homocercal caudal fin ???????????????????????
??????????????? ? ?? ??????? ????????????????
????????? 3.1 Emarginate ???????????????????
?????? ?????????? 3.2 Fork ??????????????????
?????? ???????? 3.3 Lunate ?????????????????????
?????????????????????? ??? Fork ??????
???????? 3.4 Rounded ???????????? ??????
?????????? 3.5 Pointed ??????????? ??????
?????????? 3.6 Truncate ???? Straight
?????????????????? ?????? ??? ????????????
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