Punjab Univ. J. Zool.‚ Vol. 22 (1-2)‚ pp. 01-06‚ 2007 HELMINTH PARASITES OF SOME FRESHWATER FISHES MUHAMMAD SHAFIQ AHMED‚ TAHIR IQBAL‚ AMJAD MAHMOOD‚ MUHAMMAD GULZARIN AND MUHAMMAD ABID Department of Zoology‚ University of the Punjab‚ Quaid-e-Azam Campus‚ Lahore-54590 (MSA‚ MA); Department of Zoology‚ University of Azad Jammu & Kashmir‚ Muzaffarabad (TI‚ AM‚ MG)‚ Pakistan. Abstract: Forty-three freshwater fishes (Heteropneustus fossilis 11‚ Mystus vittatus 16 and Channa striatus 16) were collected
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simple case of cause and effect. First‚ over the past thousands of years earth’s global climate has showed immense changes. Temperatures are going up resulting in tropical storms and a changed Ph in the oceans. This change is affecting the shells of crustaceans‚ the size of fish‚ and the amount of carbon in the water. The tropical storms are filling the bays with mud‚ drowning and killing the oysters. Oysters are the base of the ecosystem‚ so what happens when they are dying at an alarming rate? Here is
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the animals (or plants‚ fungi‚ etc) into smaller and more recognizable groups. The best known phylum is Chordata‚ which contains all animals with backbones (fish‚ birds‚ mammals‚ reptiles‚ amphibians). There is also Arthropoda (insects‚ spiders‚ crustaceans); Mollusca (snails‚ squid‚ clam); Annelida (segmented worms); Echinodermata (starfish‚ sea urchins) and many‚ many more. The next category that makes up the phyla is the Class. The class breaks up animals into even more familiar
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detailed fossils‚ and the influence of the fossil field on evolutionary knowledge. It was a warm summer day in 1909 when Charles Doolittle Walcott stumbled across a strange rock formation dotted with smooth rocks that he recognized as fossilized crustaceans. The Smithsonian secretary took note of them and returned to camp to share the news. Calling the discovery a “find” is an understatement. Over the following 15 years‚ Walcott made seven more trips to the site and collected over 65‚000 specimens
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According to Reece et al. (2015)‚ animals can be described as organisms that are multicellular‚ heterotrophic eukaryotes that have tissues made from embryos. The difference between plants and animals are from their source of nutrients. Plants get their food by making them through a process called photosynthesis‚ which makes plants an autotroph. Animals‚ on the other hand‚ get their food by consuming other organisms and ingesting them‚ which makes them a heterotroph. Besides that‚ there are also variations
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with an omnivorous diet and the ability to consume small and large prey. Daphnia and Cyclops are crustaceans often found in this species’ diet. Also‚ they help with mosquito control by feeding on mosquito larvae. The eyes of the Orangespotted Sunfish are corrected for spherical aberration‚ meaning they are a visual fish and need sight to find their prey. Since their prey is small fish and crustaceans‚ good eyesight is important to find them in the murky water that they live in. The Orangespotted
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The Orangespotted Sunfish (Lepomis humilis) is often confused with other sunfishes. This species is classified in the class Actinopterygii‚ order Perciformes‚ and family Centrarchidae. One characteristic that makes them stand out from other fishes are their black and orange spots. Also‚ their operculum is lined with a solid white band. Nine to ten bars can be identified on this fish. The bars on the female have a light center‚ which is a way of gender identification when the males are outside of
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the family Paguridae‚ consisting of “right-handed” hermit crabs in which the right cheliped is larger and the abdomen coils clockwise. P. samuelis is a detritovore‚ but will opportunistically feed upon living plants or animal matter. Unlike other crustaceans‚ hermit crabs require the shell of another organism to protect their soft abdomen‚ which is not covered by the same chitinous exoskeleton
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but because it was the first-ever winning word. 2. Albumen‚ 1928. The white part of an egg. 3. Promiscuous‚ 1937. I just like the idea of an eight-year-old asking the judges to use it in a sentence. 4. Crustaceology‚ 1955. The study of crustaceans‚ of course. Doesn’t it roll off of the tongue nicely? 5. Syllepsis‚ 1958. This is a complicated definition: "A figure of speech in which one word simultaneously modifies two or more other words such that the modification must be understood differently
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system is home to 70 hard coral species‚ 36 soft coral species‚ more than 500 species of fish‚ and hundreds of invertebrate species. The hundreds of invertebrate species include 350 mollusks‚ plus a vast diversity of sponges‚ marine worms‚ and crustaceans (Programme-wo‚ 2009). Beyond the waters of the reef system‚ the atolls and cayes with stands of littoral forest and mangroves provide a important habitat for certain birds. A few of the species of birds found here are the brown booby‚ brown pelican
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