Notes #3 Fish Marine Science
I. Phylum Chordata
- Characteristics
- ______
- ______
- ______
- ______
- ______
- All members show these characteristics during at least ______of their lives.
II. Phylum Chordata, Subphylum Urochordata
- Members: ______
- All display chordate characteristics during ______stage of life.
- ______characteristics as adults.
III. Phylum Chordata, Subphylum Vertebrata
- Members: ______
- Backbone made of vertebrae.
- Brain and sensory organs located at ______. (head)
IV. Phylum Chordata, Subphylum Vertebrata (Fish)
- Fins
- Stability:
- Dorsal: ______
- Anal: ______
- Maneuvering
- Pectoral: ______
- Pelvic: ______
- Power:
- Caudal: ______
- Gills
- Function: ______
- Active fish = ______
- Fish breathe by countercurrent circulation.
- Countercurrent circulation = water and blood flow in ______directions.
- More O2 in ______
- Less O2 in ______
- O2 will diffuse from high concentration to a low concentration
- Since water always has more Oxygen, there is a ______diffusion of O2 into the bloodstream!
Countercurrent circulation drawing:
- Fish Body Plans (body plan determined by location!)
- Surface water fish: ______
- Mid-water fish: ______
- Benthic fish: ______
- Coloration of Fish
- Counter shading: ______
- Dorsal side = ______
- Ventral side = ______
- Advertising:
- 2 reasons why fish are brightly colored
- ______
- ______
- Colors mimic habitat
- Benthic fish do this
- Reason to have body the same color as surroundings:
V. Fish Class: Agnatha
- ______fish
- Characteristics:
- ______
- ______
- ______
- Sample members:
- Hagfish
- Benthic ______
- Common in ______
- All are very ______
- Lamprey
- Born in salt water and reproduce in ______water (andramous)
- Many species are ______to bony fish L
VI. Fish Class: Chondrichthyes
- Characteristics:
- ______
- ______
- ______
- ______
- ______
- ______
- Claspers:
- What they are:
- ______
- How they work:
- ______
- Reproductive Strategies
- Oviparous
- ______eggs
- Developing young gets nourishment from ______.
- Oviparous organisms:
- Ovoviviparous
- Egg case ______
- Developing young nourished by ______
- Ovoviviparous organisms:
- Viviparous:
- ___egg case!
- Developing young get nourishment from ______
- Viviparous organisms:
- Chondrichthyes Members
- Rabbit fish (rat fish)
- ______
- ______
- ______
- ______
- Skates and Rays
- Flattened ______
- Most are ______
- Exceptions: ______
- Whiplike tail is NOT a ______
- Pectoral fins are ______
- 5 paired gill slits and mouth on ______side of body
- Spiracles: ______
Skates / Rays
- Sharks
- ______
- ______
- ______
- ______
- ______
- Shark senses
- Vision:
- Smell:
- Lateral Line:
- Ampullae:
VII. Fish Class: Osteoichthyes (osteo= ______, icthyes=_____)
- Bony Fish Information
- Skelton made of ______.
- Flexible fins according to ______.
- Unlike sharks, bony fish have a gill ______.
- Unlike sharks, bony fish have a swim ______.
- Definition: ______
- Relationships with other organisms:
- Mutualisms:
- Anenome fish and anemones: ______
- Cleaner wrasses and reef fish: ______
- Parasitic:
- Pearlfish and sea cucumber: ______
- Fish Senses
- Vision:
- Smell:
- Lateral Line system:
- Sound:
- Bony Fish Reproductive Behaviors
- All bony fish are ______, ______, or ______.
- Variety of ways for egg to reach sperm.
- ______
- ______
- ______
- ______
- Fish Change Sex
- Sexual success is related to ______
- Protandry: Small ______becomes a large ______.
- Why do it?
- Protogyny: Small ______becomes a large ______.
- Why do it?
- Fish Behavior
- Migration
- Catadramous (cata= ______, adramous=______)
- Live in ______water
- Reproduce in ______water
- Ex:______
- Anadromous (ana=____, adramous=______)
- Live in ______water
- Reproduce in ______water
- Ex: ______
- Schooling
- Made up of ______fish.
- Members are often same ______.
- Use ______to keep spacing between fish.
- 3 Reasons to School:
- ______
- ______
- ______