Settlement preferences of leeches (Clitellata: Hirudinida) for different artificial substrates
نویسندگان
چکیده
منابع مشابه
Biological diversity of leeches (Clitellata: Hirudinida) based on characteristics of the karyotype.
The majority of studies on leeches are related to: internal and external morphology. Fewer molecular research projects focus on molecular studies and karyology. The latter are needed to explain the evolutionary and systematic issues. Karyotypes for 22 species of Hirudinida have hitherto been determined, including: 8 species belonging to the Glossiphoniidae family, 3 species of Piscicolidae, 7 o...
متن کاملLeeches (Hirudinida: Piscicolidae)--parasites of Antarctic fish from Channichthyidae family.
There has hitherto been very few research projects focusing on ectoparasites of Antarctic fishes. The presently reported study provides data on the prevalence and the intensity of leeches (Hirudinida: Piscicolidae) infecting fishes. The materials were collected in December-February 1986/87 off the Elephant Island, South Georgia, Joinville Island, and South Shetlands. The following leech taxa we...
متن کاملBody form of leeches (Hirudinida: Piscicolidae) parasitizing fishes.
The body form of leeches, which becomes a modeling object, is a valid ectosomatic feature. It describes borders, in which, we can find internal organs of an individual. The range of realization of the body form, proposed for different groups of leeches, characterize their life spaces. These life spaces are distinct in term of position of body of leeches to the host and to the environment. Indiv...
متن کاملOn the classification, evolution and biogeography of terrestrial haemadipsoid leeches (Hirudinida: Arhynchobdellida: Hirudiniformes).
A scourge of tropical and subtropical jungles, bloodfeeding terrestrial leeches of Haemadipsidae have long confused systematists and defied sensible biogeographic interpretation. The family Haemadipsidae usually includes problematic taxa that neither fit the typical IndoPacific distribution of the group, nor properly match diagnostic characters used to define the family. Historically, four addi...
متن کاملDiversity and selective pressures of anticoagulants in three medicinal leeches (Hirudinida: Hirudinidae, Macrobdellidae)
Although medicinal leeches have long been used as treatment for various ailments because of their potent anticoagulation factors, neither the full diversity of salivary components that inhibit coagulation, nor the evolutionary selection acting on them has been thoroughly investigated. Here, we constructed expressed sequence tag libraries from salivary glands of two species of medicinal hirudino...
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ژورنال
عنوان ژورنال: Hydrobiologia
سال: 2015
ISSN: 0018-8158,1573-5117
DOI: 10.1007/s10750-015-2359-1