Biology Research.docx - I Introduction Fish any of...

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I.Introduction:Fish, any of approximately 34,000C species of vertebrate animals (PhylumChordata) found in the fresh and salt waters of the world. The term fish applied toa variety of vertebrates of several evolutionary lines. It describes a life-formrather than a taxonomic group. As members of the Phylum Chordata, fish sharecertain features with other vertebrates. These features are gill slits, at some pointin the life cycle, a notochord, or skeletal supporting rod, a dorsal hollow nervecord and a tail (Parenti, Weitzman, 2010). Fish do not representa monophyleticgroup, and therefore the "evolution of fish" is not studied as asingle event. Early fish from the fossil record are represented by a group of small,jawless, armored fish known as ostracoderms. Jawless fish lineages are mostlyextinct. An extant clade, the lampreysmay approximate ancient pre-jawed fish.The first jaws are found in Placodermifossils. The diversity of jawed vertebratesmay indicate the evolutionary advantage of a jawed mouth. It is unclear if theadvantage of a hinged jaw is greater biting force, improved respiration, or acombination of factors. Fish may have evolved from a creature similar to a coral-like sea squirt, whose larvae resemble primitive fish in important ways. The firstancestors of fish may have kept the larval form into adulthood(as some seasquirts do today), although perhaps the reverse is the case (Nelson, Joseph S.,2006).THE ICHTHYOLOGY OF FISHES IN GINGOOG CITY COLLEGES1
The scientific study of fish, or fish biology is traditionally known by therather intimidating name Ichthyology. It is a very broad science that includesmany specialized fields. The one thing that all fish biologists share in common istheir fascination with the estimated 25,000 to 30,000 species of fishes found inthe world oceans, lakes ponds, rivers and streams (Murphare, 1993).We the researchers, are assigned to study the Ichthyology of fishes withinthe Ginggoog City Colleges campus. The fish that is found inside the campus isKoi or more specifically the “Nishikigoi” (scientifically known as the CyprinusCarpio), Hammerhead shark, Albino Catfish, and White Nile Tilapia.THE ICHTHYOLOGY OF FISHES IN GINGOOG CITY COLLEGES2
A.Objectives of the Study:This section includes descriptions of the specific objectives for: (1) thesample selection and (2) the easement comparison study.There were three primary objectives of this study:1.To introduce fish nomenclature and classification2.To become familiar with basic ichthyology3.To begin to identify fish using ichthyologic characteristicB.Significance of the Study:This research is not only important to the researchers but also to thereaders of its dissertation because it can give them a better understanding onthe particular subject.

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