PPT-Michigan Fishes 23 October 2012

Michigan Fishes Michigan dominates Great Lakes watershed Shoreline 3288 miles 2 nd to Alaska Over 35000 inland lakes and 36350 miles of rivers Of 172 Great Lakes species 153 found in Michigan. Invertebrate chordates. Tunicates and lancelets. Vertebrate chordates. Fishes. Amphibians. Reptiles. Birds. Mammals. Nonvertebrate Chordates . Tunicates (sea squirts). Squirt water when their siphons are disturbed. Biology 342. Phylogeny . of . Basal . Tetrapoda. The group of bony fishes that gave rise to land-dwelling vertebrates and their descendants (. Tetrapoda. , or colloquially, “. tetrapods. ”) was the lobe-finned fishes, or . Notothenioid. Fishes. by: Priscilla Watson-Wynn. Antarctica. Fifth largest continent. The world’s most southern continent. Surrounded by Southern Ocean. 98% covered in ice sheet & 2% barren rock. The . Protochordates. as Ancestors. Some living chordate groups may resemble the primitive vertebrate ancestors (. protochordates. ). Hemichordates. Burrows in marine sediments (acorn worms). (+) pharyngeal gill slits; . Introduction. Acquiring food for energy to drive metabolism and other physiological processes is central to the survival of the individual.. Competition for food resources is often intense in the animal’s natural surroundings, therefore, increasing the efficiency with which you collect and process food is at a premium in natural selection. . Fish- multiple fish that belong to the same species. Fishes- multiple fish that belong to different species. “Fish” versus “Fishes”. All . have…. At least one bone in their skeleton. Scales. Where does it start?. Part 1. Phylum Chordata. Animal Kingdom. Vertebrates over here. Chordata (animals with notochord at some stage in life cycle). Craniata (euchordates with a cranium) = Vertebrata. Body Divisions. Their body is divided into:. - head . - trunk . - and tail . although the divisions are not always externally visible. . The . caudal peduncle. is the narrow part of the fish's body to which the caudal or tail fin is attached. The . DOCUMENTS OF THE FISHERY RESOURCESDIVISION OF FAO DEPARTMENT OF FISHERIESDocuments which are not official FAO publicationsare issuedinsevera!series.Theyaregiven 'arestricted distribution and this fact Fall, . 2020. Ichthyology. Alimentary canal. （消化道）. can be divided into anterior and posterior regions.. The anterior part consists of the mouth, . buccal. cavity, and pharynx.. The posterior part consists of the foregut (esophagus and stomach), . Origin. Position. Anatomy. Ovaries. Testes. Testes in different groups. Structure of ovary. Structure of testes. Cyclic changes in gonads. Intermittent organs. Reproductive strategies. Acknowledgements . coloured. . . Colouration. is one of the most common phenomena found among the fishes.. The enormous range of . colours. and patterns that produced in fishes are generally related to their habits.. 1 CHAPTER 1 1 .1 The cerebellum which means ‘little brain’ is present in all vertebrate brains. Located underneath the posterior region of the skull and rostrocaudal to the occipital lobe, it Prof. Dr. . Mohammad . Hamed. . Bahnasawy. .  . Prof. of fish . biology . Zoology Department. Faculty . of . Science. . Damietta . University. The negative aspects. 1- Poisonous and venomous fishes.