the coelacanth
DESCRIPTION
The Coelacanth. Order: Coelacanthiformes Family: Latimeriidae. Why is the Coelacanth so popular?. Coelacanth Structure. Coelacanth Habits. Nocturnal, feed at night by drifting in currents above the bottom Aggregate and rest in caves (150-250m.) during the day. Sturgeons. - PowerPoint PPT PresentationTRANSCRIPT
![Page 1: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/1.jpg)
Coelacanth, Sturgeons and Tarpons
1
The Coelacanth Order: Coelacanthiformes
• Family: Latimeriidae
![Page 2: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/2.jpg)
Coelacanth, Sturgeons and Tarpons
2
Why is the Coelacanth so popular?
![Page 3: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/3.jpg)
Coelacanth, Sturgeons and Tarpons
3
Coelacanth Structure
![Page 4: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/4.jpg)
Coelacanth, Sturgeons and Tarpons
4
Coelacanth Habits Nocturnal, feed at
night by drifting in currents above the bottom
Aggregate and rest in caves (150-250m.) during the day
![Page 5: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/5.jpg)
Coelacanth, Sturgeons and Tarpons
5
Sturgeons Class Actinopterygii
• Subclass Chondrosteio Family Acipenseridae
Species:• Shortnose Sturgeon
(Acipenser brevirostrum)
• Atlantic Sturgeon (Acipenser oxyrhynchus)
![Page 6: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/6.jpg)
Coelacanth, Sturgeons and Tarpons
6
Sturgeon Characteristics Cartilaginous skeleton, heterocercal caudal fin, and
spiral valve intestine 5 rows of bony scutes Highly protrusible mouth, preceded with barbels
![Page 7: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/7.jpg)
Coelacanth, Sturgeons and Tarpons
7
Sturgeon Habits Benthic cruisers, using barbels and electrical organs in the snout to detect
prey Large size, slow growth, and long lived Highly fecund
![Page 8: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/8.jpg)
Coelacanth, Sturgeons and Tarpons
8
Migrations Anadromous species Beluga Sturgeon (Huso huso) migrates 1,500 miles
up the Danube and Volga rivers. (Russian Caviar)
Prices
![Page 9: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/9.jpg)
Coelacanth, Sturgeons and Tarpons
9
Species of Concern Shortnose Sturgeon (Acipenser brevirostrum) Atlantic Sturgeon (Acipenser oxyrhynchus)
![Page 10: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/10.jpg)
Coelacanth, Sturgeons and Tarpons
10
Tarpon and Ladyfish Class
Actinopterygii• Family Elopidae
Common species:• Tarpon (Megalops
atlanticus)• Ladyfish (Elops
saurus)
![Page 11: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/11.jpg)
Coelacanth, Sturgeons and Tarpons
11
Elopidae Characteristics Streamlined predators with large
cycloid scales and deeply forked tails
Elops saurus
![Page 12: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/12.jpg)
Coelacanth, Sturgeons and Tarpons
12
Elopidae Characteristics Found in shallow, marine water
• Occasionally freshwater
Megalops atlanticus
![Page 13: The Coelacanth](https://reader036.vdocuments.us/reader036/viewer/2022062301/56815c59550346895dca5d3c/html5/thumbnails/13.jpg)
Coelacanth, Sturgeons and Tarpons
13
Elopidae Reproduction Leptocephalus
larvae• Planktonic, thin
and transparent• Leaf-like body
allows direct nutrient absorption
Females are highly fecund