نتایج جستجو برای: holothuria
تعداد نتایج: 636 فیلتر نتایج به سال:
In this study, commercial sea cucumber identification and some biological characteristics were investigated between Ayvalık and Çeşme. Ayvalık, Aliağa, Foça, Şakran and İzmir were selected as main stations. In the investigation where 70 stations were studied between 0 and 50 m depth 6 sea cucumber species were found. These were Holothuria tubulosa, Holothuria polii, Holothuria mammata, Holothur...
Animal welfare during handling and transportation to aquaculture facilities or public aquaria is commonly estimated by addressing injury andmortality levels. Although these procedures have been optimized for different species, data on individual species’ cellular capabilities to tolerate stress are still scarce. In the present study, several biomarkers related with oxidative stress and energy m...
To study the new antifungal active triterpene glycosides of sea cucumber Holothuria scabra. Triterpene glycosides from Holothuria scabra were separated and purified by silica gel chromatography, reversed-phase silica gel chromatography and RP-HPLC. Their structures were elucidated on the basis of spectral data and chemical evidence. Three triterpene glycosides were identified as scabraside A (1...
This paper reports on some sea cucumbers (Holothuroidea) in the collections of the NHMUK, taken off the coast of Ghana. Most result from collections around Accra during the years 1949-52. A couple of other species are included. Altogether six species are here reported, viz. Holothuria (Holothuria) dakarensis Panning, 1939; Holothuria (Semperothuria) imitans Ludwig, 1875; Holothuria (Vaneyothuri...
This study aimed to determine phylogenetic relationship between and among selected species of sea cucumbers (Echinodermata: Holothuroidea) using 16S mitochondrial ribosomal RNA (rRNA) gene. Phylogenetic analyses of 37 partial sequences of 16S mitochondrial rRNA gene using three main methods namely neighbour joining (NJ), maximum parsimony (MP) and maximum likelihood (ML) showed the presence of ...
The sea cucumber Holothuria leucospilota has high me-dicinal value and rich nutritional edible value, and thus is a commercially important aquatic product in China. Microsatellite loci were developed and screened using a fast isolation protocol and amplified fragment length polymorphism of sequences containing repeats. In this study, 16 novel polymorphic microsatellite markers in H. leucospilot...
Sea cucumbers play an important role in nutrient cycling of marine ecosystems by consuming sediments and moving sand, thus occupying a similar niche to earthworms in terrestrial ecosystems. However, our understanding of microbial diversity and functions associated with sea cucumbers is meager. Here, we isolated 141 bacterial strains under aerobic conditions using various media from the intestin...
بهمنظور شناسایی گونههای متعلق به رده خیارهای دریایی از نوع Holothuroidea و با هدف بررسی جامع گونههای خیار دریایی در زیستگاهها و مناطق مختلف جزیره قشم سه بار از پهنههای جزر و مدی قسمتهای شمالی و جنوبی جزیرهی قشم از آذر 88 الی شهریور 89 بررسیهای میدانی صورت گرفت. در مجموع از 15 پهنه که امکان دسترسی به آنها فراهم بود و معرف زیستگاه همان محل بودند، نمونهبرداری و تمامی هر پهنه مورد پیمایش و...
Abstarct: A molecular phylogenetic analysis of some Holothuroidea was undertaken in order to clarify the systematics and taxonomy of this class in the red sea. DNA sequence for portions of 16S mitochondrial genes was obtained from 4 species of sea cucumbers. The resulting molecular phylogeny using maximum likelihood methods of the Holothuroidea conflicting existing taxonomy, which is based larg...
The palatability of various organs (body wall, cuvierian gland, viscera, longitudinal muscle bands and gonads) of sea cucumber Holothuria leucospilota (Brandt) was studied by feeding experiments, performed on a freshwater fish Sarotherodon mossambicus and a marine fish Theraponjarbua. The result shows that the food pellets of the body wall were less toxic and more palatable than the gonads, vis...
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