Studies on the Postembryonic Development of Three Species of Harpacticoid Copepods PDF Download
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Author: Marjorie Estelle Carter
Publisher:
ISBN:
Category : Copepoda
Languages : en
Pages : 110
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Book Description
Author: Marjorie Estelle Carter
Publisher:
ISBN:
Category : Copepoda
Languages : en
Pages : 110
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Book Description
Author: Fred Leslie Clogston
Publisher:
ISBN:
Category : Harpacticidae
Languages : en
Pages : 492
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Book Description
Author: Marjorie Estelle Carter
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 456
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Book Description
Author: Marjorie Estelle Carter
Publisher:
ISBN:
Category : Bryocamptus zschokkei
Languages : en
Pages : 26
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Book Description
Author: Ferrari
Publisher: BRILL
ISBN: 9047422333
Category : Science
Languages : en
Pages : 236
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Book Description
Crustaceans that are now called copepods have been known, not necessarily by that name, since Aristotle. Published reports of their post-embryonic development, however, date only from the last 250 years. This monograph is a first attempt to gather all published information about copepod post-embryonic development. Careful diagnoses of nauplius and copepodid allow comparisons of specific developmental stages among species. Changes from the last naupliar stage to the first copepodid stage are used to interpret the naupliar body. Body and limb patterning are discussed, and models of limb patterning are used to generate segment homologies for the protopod and both rami. Contributions of post-embryonic development to phylogenetic hypotheses are considered and suggestions for future studies are provided.
Author: Vervoort
Publisher: BRILL
ISBN: 9004611126
Category : Science
Languages : en
Pages : 369
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Author: University of Virginia
Publisher:
ISBN:
Category : Dissertations, Academic
Languages : en
Pages : 134
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Book Description
Author: University of Virginia. Graduate School of Arts and Sciences
Publisher:
ISBN:
Category :
Languages : en
Pages : 500
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Book Description
Author: Bruce C. Coull
Publisher:
ISBN:
Category : Copepoda
Languages : en
Pages : 56
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Book Description
Author: Kristine Idda P. Pontillas
Publisher:
ISBN:
Category :
Languages : en
Pages : 103
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Book Description
Harpacticoid copepod fauna have been the subject of very limited taxonomic research for over the past thirty years. Moreover, the huge discrepancy in the number of studies on harpacticoids in freshwater is heavily outweighed by those in marine waters. This study presents new data on the taxonomy, ecology, and distribution of benthic harpacticoids belonging to the families Laophontidae, Ameiridae, Harpacticidae, and Canthocamptidae, all of them collected from a freshwater, Lake Taal in Batangas, Philippines. Their taxonomy has been studied using scanning electron microscopy. Folioquinpeschathamensis, has been collected in littoral and limnetic areas. The species is characterized by presence of primitive inner proximal seta on the female and male P3 ENP2. Nitokravietnamensis, collected in open waters with average depth of 20 m, is being characterized by a character combination of six setae on the ellipsoidal exopod of leg 5 in both sexes, the first endopodal segment of leg 1 shorter than the whole exopod, the seta/spine armature of an inner seta of P2-‐P4 enp-‐1 and four elements on P2 enp-‐3, and the reduction of the proximal endite to a seta on the maxillary syncoxa. Harpacticella oceanica, the most abundant, has been cored from mostly in littoral areas. Mesochrameridionalis, a species belonging to the largest family, has been collected also mostly in littoral waters. The characteristic features of this species are the 2-‐segmented condition in the endopods of P2-‐P4 in females while the P3 shows endopod 3-‐segmented with an apophysis on the 2nd segment and 2 setae on the 3rd segment of males. Most species except F. chathamensis are found to be occurring in marine waters and there were no reported data on where these 3 species have been collected in the Philippines. This study suggests that genera Nitokra, Harpacticella, and Mesochra seem to be very adaptable implying that these have survived and thriving in freshwater when they are only known to occur in marine conditions.
