3356 research outputs found
Sort by
HEAT SHOCK PROTEIN 70 KNOCKDOWN IN THE BRINE SHRIMP Artemia franciscana: IMPLICATION ON REPRODUCTION, IMMUNE RESPONSE, AND EMBRYONIC CUTICULAR STRUCTURE
Get PDF
ANALISIS GENRE LATAR BELAKANG KAJIAN DAN PENYATAAN MASALAH TESIS PHD SAINS SOSIAL OLEH PELAJAR PASCASISWAZAH BERBANGSA ARAB
No full textKEPELBAGAIAN GENETIK KE ATAS INDUK AROWANA EMAS MALAYSIA (Scleropages formosus) DI BUKIT MERAH, PERAK MENGGUNAKAN PENANDA MITOKONDRIA DAN NUKLEAR RAPD
No full textKAJIAN EKOLOGI PEMBIAKAN BELUT TROPIKA, Anguilla bicolor bicolor DAN Anguilla bengalensis bengalensis DI BARAT LAUT SEMENANJUNG MALAYSIA
No full textANALISIS KUALITI PERKHIDMATAN TERHADAP KEPUASAN DI DALAM KALANGAN PENGANGKUTAN HALAL DI MALAYSIA
Get PDFCan stocking with advanced European grayling fry strengthen its populations in the wild?
No full textEuropean grayling, Thymallus thymallus (Linnaeus, 1758) (Actinopterygii: Salmoniformes: Salmonidae), represents one of the
highly attractive riverine fishing species in Europe. Its populations have declined in the Czech Republic due to various adverse
factors. Current approaches for strengthening these populations based on restocking with artificially reared 1+ or 2+ old individuals
have proven to be ineffective. This study focuses on the possibilities of supporting or restoring these populations by reintroducing
two-month-old, fast-growing fry reared in ponds. In June 2021, 5400 advanced fry marked with Alizarin Red (ARS) were introduced
into three free-flowing South Bohemian streams. The recapture rates and biometric data (length and weight) of stocked
grayling were assessed at the release sites as well as further downstream. The first electrofishing monitoring was conducted at the
end of the growing season (October) and after their first winter (March). Water temperature and flow rate at the stocking sites were
monitored throughout the growing season. The substantial number of recaptured individuals across all monitored sites suggests
that the fry successfully adapted to their new habitat and significantly contributed to the composition of local fish communities.
Downstream movement of stocked fry correlated with lower water temperatures and higher flows. Our findings demonstrate that
some introduced individuals successfully overwintered at all three reintroduction sites. Marking with ARS has proven to be a very
effective non-invasive method of group marking juvenile fish and is suitable for monitoring stocking programs. The production
and stocking of fast-growing advanced fry of European grayling is thus a promising strategy for revitalizing and strengthening the
populations of this threatened fish in running waters
Can the Ecological Quality of Several Bays in South Korea Be Accurately Assessed Using Multiple Benthic Biotic Indices?
No full textBays are extensively impacted by human activities, and an accurate assessment of ecological
quality is crucial for the environmental management and protection of bays. Most studies indicate
that evaluating the ecological quality of bays using a single index presents challenges. In our study,
we used five benthic biotic indices and a composite index to assess the ecological quality of three
bays in South Korea. Our results revealed disparities in the ecological quality status assessment
using five benthic biotic indices. The composite index performed better than the other benthic biotic
indices in a principal coordinate analysis. Significant differences were observed between the values
classifying stations as having an acceptable or unacceptable final ecological quality in terms of species
indices (except for the Pielou?s evenness index) and the abundance of opportunist species (p < 0.05).
Consequently, we advocate for using a composite index to assess the ecological quality of the bays
of theWest Sea of South Korea. Furthermore, our study provides valuable information for marine
ecological management and policy formulation in Korea and offers recommendations for using the
composite index in future research