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© Knox Academy Biology Department Knox Academy Biology Department Fish Dissection
© Knox Academy Biology Department Preparation & Examination Locate major external anatomical parts: Locate major external anatomical parts: Dorsal Fin Dorsal Fin Posterior Dorsal Posterior Dorsal Pectoral Fins Pectoral Fins Pelvic Fins Pelvic Fins Anal Fins Anal Fins Caudal Fin Caudal Fin Gill Covers (operculum) Gill Covers (operculum) Lateral line - sensory organ of fish Lateral line - sensory organ of fish Remove several scales Remove several scales Prepare a dry-mount of a scale. Prepare a dry-mount of a scale. Observe it under a microscope Observe it under a microscope What function do you think scales serve? What function do you think scales serve?
© Knox Academy Biology Department Dissection Remove operculum with scissors Remove operculum with scissors Observe gill anatomy Observe gill anatomy Rakers - white, comb-like archesRakers - white, comb-like arches Filaments - Red fingerlike projectionsFilaments - Red fingerlike projections With a scalpel, remove a section of the lateral line With a scalpel, remove a section of the lateral line What function does this organ serve? What function does this organ serve? Do you notice a concentration of nerve endings? Do you notice a concentration of nerve endings? Begin the main incision Begin the main incision Open the abdomen (below the gill) carefully with a scalpel Open the abdomen (below the gill) carefully with a scalpel Cut with a scissors: remove a oval-shaped piece of skin (only skin) running from underneath the gills, to the anus, up to the lateral line, along the lateral line, to the gill, down to where you started the incision. Remove flap of skin (see diagram on next slide) Cut with a scissors: remove a oval-shaped piece of skin (only skin) running from underneath the gills, to the anus, up to the lateral line, along the lateral line, to the gill, down to where you started the incision. Remove flap of skin (see diagram on next slide)
© Knox Academy Biology Department Main Incision Cut along the blue line... Only cut through scales, muscles, and skin Only cut through scales, muscles, and skin Take special care not to cut too deep! Take special care not to cut too deep!
© Knox Academy Biology Department Anterior View 1. Gills 2. Heart 3. Liver 4. Pyloric caeca 5. Small intestine 6. Stomach 7. Swim bladder
© Knox Academy Biology Department Posterior View 1. Swim bladder 2. Gonad 3. Large intestine 4. Urinary bladder 5. Anus
© Knox Academy Biology Department Close-up: Body Cavity Close-up: Body Cavity Muscle Swim Bladder Liver Spleen Gastric Cecae Eggs Stomach Ovary Small Intestine
© Knox Academy Biology Department Can you identify the parts?
Perch Dissection ©2001 AgriTeach.com (92601ms) Preparation & Examination Locate major external anatomical parts: Dorsal Fin Posterior Dorsal
Perch Dissection Each checkpoint is counted as equal parts of your lab grade: Checkpoint #1 – External Anatomy Checkpoint #2 – Gill Structures Checkpoint.
PERCH DISSECTION LAB ID PICTURES. ANTERIOR DORSAL FIN.
Class Osteichthyes Bone endoskeleton Thin flexible scales (______ or ______) Bony ________ pumps water across gills Most have swim bladder ______ (symmetrical)
Fish Body Part Review. This fin is the _________ fin Anal
Practice Quiz Fish. Class AgnathaHagfish Hagfish feed on dead or dying fishes.
Perch. Perch is a common name for fish of the genus Perca, freshwater gamefish belonging to the family Percidae. True perch have "rough" or ctenoid scales.
Biology 2 Perch & Shark Dissection Lab Exam Review.
Oncorhynchus mykiss Rainbow Trout Anatomy A Study and Dissection Guide. TroutDissection.dnr.sc.gov Adapted by Joyce Plyter 2013 NOTES: A. You will need.
Oncorhynchus mykiss Rainbow trout Family: Salmonidae (Salmonids) Order: Salmoniformes (salmons) Class: Actinopterygii (ray-finned fishes)
Chapter 39 Fishes Section 3 Bony Fishes. Characteristics Class Osteichthyes Bone- harder & heavier than cartridge Lungs- early bony fishes Swim bladder-
External Parts Nares (nostrils) – used to detect orders and are very sensitive Mouth - where they take in food and water to breathe, may or may not.
Dissection of a Sea Bass Yee Jek Hui, Darryl (33) 1P1.
FISH CHARACTERISTICS 5 th Grade. How do FINS work? Pectoral Fins –used to maneuver the fish up, down, and sideways -> turning especially Pelvic Fins.
Are you Shark Smart? Shark Anatomy. Shark Skeleton Made of calcified cartilage Spinal Nerve Cord- carries nerve impulses Vertebrae- form the sharks backbone.
Frog Dissection. Place Frog in Pan Place him/her in the dissection pan. The frog should be lying on his dorsal (back) side with his belly facing up.
SHARK DISSECTION SQUALUS ACANTHIAS. 1. Do not make deep cuts with scissors or scalpels as you may damage tissue underneath. 2. Know the anatomical terms.
Caudal or Posterior Cranial or Anterior Dorsal Ventral.
Internal Anatomy of the Frog Keep in mind the following questions… To which system does it belong? What is the main function? How is it connected to.
Fish Dissection. There are over 30,000 species of fish.
Fin Location Body Types Spiny-rayed fishSoft-rayed fish.
SQUID DISSECTION. Position your squid Place squid in tray, with its dorsal side facing up.
Perch Dissection Introduction. The Perch Scientific Name: Perca flavens Size: About 0.3m long and up to 2.3 kg Range: Found in lakes and rivers from the.
Vertebrate Anatomy Labs The Fetal Pig and You. WEEK #1: Vertebrate Anatomy I: Skin and Digestive Systems Review descriptions and illustrations of tissues.
Fish Dissections Use caution –Delicately make incisions –Use scisors Cut medial line on ventral side Cut lateral section out to view internal anatomy through.
Shark Dissection Scientific Name: Squalus acanthias Common Name: Spiny Dogfish Developed by Adam F Sprague.
Fish Dissection Image from:
Frog Dissection Northridge Middle School. External Anatomy Verify that your frog has both a nictitating membrane (S) and a tympanic membrane (T). The.
Shark Dissection Scientific Name: Squalus acanthias Common Name: Spiny Dogfish.
Internal Anatomy of Fish. The Systems of a Fish Skeletal System Muscular System Respiratory System Digestive System Circulatory System Nervous System.
THE FISHES JEOPARDY How things work? work? Bony Fish Anatomy Circulatory System Digestive System
FISH. Phylum Chordata All chordates have for all or part of their lives: A. A notochord - Flexible rod shaped support B. A hollow dorsal nerve cord -
Parts & Functions. What’s the part? 1 st part of intestine where bile and trypsin are added_______ ______________ Hormone that causes cells to take up.
The Mouth To study the mouth, scissors are used to cut the corners of the mouth at the angle between the upper and lower jaws on each side of the head.
Shark Dissection instructions: Full Combat Gear. –Goggles –Gown –Gloves Read Directions and follow them carefully. Before getting shark, make sure there.
GUIDE TO A FROG DISSECTION By Mr. Berg and Ms. Cerletty For this dissection Mr. Berg will be wearing black gloves in an attempt to be super cool.
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By: Tricia Redburn. External Anatomy Lateral Line Anterior Dorsal Fin Posterior Dorsal Fin Caudal fin Rostrum Eyes Spiracle Gill Slits.
JUST VOCAB OSTEICHTHYES Chapters 40-2 & 41. Joining of an egg & sperm outside the female’s body ____________________ Kind of development in which offspring.
Fetal Pig Dissection! Work in Groups of 3-4 Get out lab books and lab packets!
Skate Dissection Phylum Chordata Class Chondrichthyes Order Rajiformes Family Rajidae.
Next > Psst! Pick him, not me! / As a routine, I practice my skills by trying to replicate interactive content that I find online. This is based on the.
Frog Dissection. First Steps 1. Rinse frog in water 2. Obtain frog and place frog on its dorsal (back) side. Pin limbs to dissection tray.
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