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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
11

Distribuição espacial dos poliquetas (ANNELIDA, POLYCHAETA) dos Recifes de arenito na praia da Pedra Rachada (Paracaru - Ceará) / Spatial distribution of polychaetes (Annelida, Polychaeta) Reef on the beach sandstone of Split Stone (Paracaru - Ceará)

Sousa, Rossana Cristina de Azevedo January 2006 (has links)
SOUSA, Rossana Cristina de Azevedo. Distribuição espacial dos poliquetas (ANNELIDA, POLYCHAETA) dos Recifes de arenito na praia da Pedra Rachada (Paracaru - Ceará). 2005. 70 f. Dissertação (Mestrado em Ciências Marinhas Tropicais) - Instituto de Ciências do Mar, Universidade Federal do Ceará, Fortaleza, 2005. / Submitted by Debora Oliveira (deby_borboletinha@hotmail.com) on 2011-12-22T14:36:28Z No. of bitstreams: 1 2006_dis_rcdasousa.pdf: 1654091 bytes, checksum: ed9b68df546408f9b1d3e4ab3341285d (MD5) / Approved for entry into archive by Nadsa Cid(nadsa@ufc.br) on 2012-01-23T17:05:51Z (GMT) No. of bitstreams: 1 2006_dis_rcdasousa.pdf: 1654091 bytes, checksum: ed9b68df546408f9b1d3e4ab3341285d (MD5) / Made available in DSpace on 2012-01-23T17:05:51Z (GMT). No. of bitstreams: 1 2006_dis_rcdasousa.pdf: 1654091 bytes, checksum: ed9b68df546408f9b1d3e4ab3341285d (MD5) Previous issue date: 2006 / Sandstone rock reefs consist of consolidated substrata with a high fauna and flora diversity, where polychaetes represent a very important group. This study aims to contribute to the knowledge about polychaete annelids biodiversity on the coast of Ceará and their spatial distribution on hard substratum. The sampling took place on the reefs at Pedra Rachada beach (Paracuru-CE) and was carried out during low spring tides in August 2004 (dry season) and May 2005 (rainy season). A transect was placed perpendicularly to the coastline, throughout which samples, 10m apart from each other, were collected using a 25x25cm square. The sampled area was divided in three zones: lower, middle, and higher reefs. Considering the two studied seasons, 1315 specimens were identified and distributed in 60 polychaete species pertaining to 25 families and 42 genera. The most abundant families were Eunicidae, Orbinidae and Neredidae. Most of the found species are either carnivores, herbivores or burrowers. The typical species of the studied areas were Eunice cariboea, Naineris dendritica, Nematonereis hebes and Lysidice ninetta. No significant difference was observed in the absolute abundance of the species between the studied periods. However, a significant difference was observed between the lower and higher zones. During the dry season, the major abundance of individuals was found at the higher reef, whereas during the rainy season it was found at the lower reef. Nereis riisei was the only specie to present significant difference in its average abundance between the studied periods. The sandstone rock reef polychaetes at Pedra Rachada beach presented a distribution strongly related to the substratum features. / Os recifes de arenito constituem um ambiente consolidado com alta de diversidade de fauna e flora, no qual os poliquetas representam um grupo importante. Este estudo teve como objetivo contribuir para o conhecimento da biodiversidade de anelídeos poliquetas da costa cearense e estudar a distribuição espacial desses organismos em substratos consolidados. As coletas, realizadas nos recifes de arenito da praia Pedra Rachada (Paracuru-CE), foram realizadas durante maré baixa de sizígia, em agosto de 2004 (período seco) e maio de 2005 (período chuvoso). Um transecto perpendicular à linha de praia foi demarcado, no qual as amostras foram coletadas utilizando-se um quadrado de 25 cm de lado, dispostos em intervalos de 10 m. A faixa de recife amostrada foi dividida em três zonas, recife inferior, médio e superior. Considerando os dois períodos de estudo, foram identificados 1.315 indivíduos distribuídos em 60 espécies de poliquetas, pertencentes a 25 famílias e 42 gêneros. As famílias mais abundantes foram Eunicidae, Orbiniidae e Nereididae. A maioria das espécies encontradas possui hábito alimentar carnívoro, herbívoro e escavador. As espécies típicas da região estudada foram Eunice cariboea, Naineris dendritica, Nematonereis hebes e Lysidice ninetta. Não foi observada uma diferença significativa, com relação à abundância absoluta das espécies, entre os períodos estudados, entretanto, foi observada diferença significativa entre as zonas do recife inferior e recife superior. No período seco, a maior abundância de indivíduos ocorreu no recife superior, já no chuvoso, ocorreu no recife médio. Nereis riisei foi a única espécie que apresentou diferença significativa quanto a sua abundância média quando comparados os dois períodos estudados. Os poliquetas dos recifes de arenito da praia da Pedra Rachada apresentaram uma distribuição de acordo com as características do substrato
12

A comparative study of the digestive systems of Cambarincola philadelphica (Leidy, 1951) and Xironodrilus formosus (Ellis, 1819) (Annelida, oligochaeta, branchiobdellidae) /

Richard, Bertha Orphe January 1971 (has links)
No description available.
13

A comparative study of the digestive systems of Cambarincola philadelphica (Leidy, 1951) and Xironodrilus formosus (Ellis, 1819) (Annelida, oligochaeta, branchiobdellidae) /

Richard, Bertha Orphe January 1971 (has links)
No description available.
14

Spirobranchus giganteus (serpulidae, polychaeta, annelida): neurosecretion, regeneration, larvae rearing, ecology

Pocock, Dorothy Margaret Elaine. January 1964 (has links)
No description available.
15

The anatomy and neurosecretory system of the supraoesophageal ganglion of Hermodice Carunculata (Annelida: Polychaeta).

Fitzsimons, Patricia Gail. January 1965 (has links)
Hermodice carunculata (Pallas) is an Amphinomid po1ychaete commonly found throughout the Caribbean area (Marsden, 1960). It also occurs in the Gulf of Mexico (Hartman, 1951) and off the coast of southern Florida (Mullin, 1923). The family Amphinomidae includes the first species of annelids to be described from the Western Hemisphere. In the eighteenth century, some West Indian faunal collections were deposited in various museums of western Europe. At that time, a young physician, Peter Simon Pallas, became interested in these collections. [...]
16

A comparison of lipids and fatty acids in mature and immature nereis virens, a marine worm (Annelida, Polychaeta).

Pocock, Dorothy Margaret Elaine. January 1970 (has links)
No description available.
17

The anatomy and neurosecretory system of the supraoesophageal ganglion of Hermodice Carunculata (Annelida: Polychaeta).

Fitzsimons, Patricia Gail. January 1965 (has links)
No description available.
18

A comparison of lipids and fatty acids in mature and immature nereis virens, a marine worm (Annelida, Polychaeta).

Pocock, Dorothy Margaret Elaine. January 1970 (has links)
No description available.
19

Helmintos de quirópteros da região Centro-Oeste do estado de São Paulo /

Cardia, Daniel Fontana Ferreira. January 2012 (has links)
Orientador: Katia Denise Saraiva Bresciani / Coorientador: Adjair Antônio do Nascimento / Banca: Carlos Noriyuki Kaneto / Banca: Estevam Guilherme Lux Hoppe / Banca: Karin Werther / Banca: Jancarlo Ferreira Gomes / Resumo: O Brasil possui uma das maiores diversidades de quirópteros do planeta, entretanto apesar do grande número de espécies distribuídas por todo território nacional, pouco se sabe sobre alguns aspectos da biologia destes mamíferos. Pesquisas referentes à fauna parasitária destes animais, especialmente de seus helmintos, ainda são escassas no país. Diante disso, o presente estudo objetivou identificar a helmintofauna de quirópteros, provenientes da região Centro- Oeste do Estado de São Paulo. Para isto, foram realizadas análises morfológicas e biométricas dos diferentes grupos de helmintos, colhidos durante a necropsia de 340 morcegos de várias espécies, previamente recolhidos pelos Serviços Municipais de Controle de Zoonoses da referida região para vigilância epidemiológica da raiva. Foram identificadas 12 espécies de helmintos, dentre as quais oito eram de nematódeos, três de digenéticos e uma de cestódeo. Seis das espécies de helmintos analisadas apresentaram novos registros de hospedeiro na região Neotropical e cinco no Brasil. Duas espécies foram registradas pela primeira vez no território nacional e três no Estado de São Paulo. Além disso, o nematódeo Pterygodermatites (Paucipectines) andyra n. sp. foi descrita como uma nova espécie / Abstract: Brazil has one of the highest diversities of chiropteran of the world, however despite the large number of species distributed throughout the national territory, little is known about some aspects of the biology of these mammals. Researches related to parasitic fauna of these animals, especially helminths, are still scarce in the country. Thus, the present study aimed to identify the helminth fauna of bats, from Midwest Region of São Paulo State. For this, biometric and morphological analyzes were performed in the different groups of helminths, collected during the necropsy of 340 bats of various species, previously collected by Municipal Disease Control Services of this region for rabies epidemiological surveillance. Twelve of helminths were identified, which eight were nematodes, three of digeneans and one of cestodes Six species of helminths analyzed had new host records in the Neotropical region and five in Brazil. Two species were recorded for the first time in the country and three in the state of São Paulo. Also, the nematode Pterygodermatites (Paucipectines) andyra n. sp. was described as a new species / Doutor
20

Antipredation strategies of marine worms : geographic, ecological, and taxonomic patterns

Kicklighter, Cynthia Ellen 05 1900 (has links)
No description available.

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