Gespeichert in:
| Hauptverfasser: | , , , |
|---|---|
| Format: | Artículo científico |
| Sprache: | en |
| Veröffentlicht: |
Marine pollution bulletin
2025
|
| Schlagworte: | |
| Online-Zugang: | https://pubmed.ncbi.nlm.nih.gov/40086091/ |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| _version_ | 1868266232015224832 |
|---|---|
| author | Taheri, Mehrshad Foshtomi, Maryam Yazdani Manbohi, Ahmad Mira, Seyed Sahab |
| author_facet | Taheri, Mehrshad Foshtomi, Maryam Yazdani Manbohi, Ahmad Mira, Seyed Sahab Taheri, Mehrshad Foshtomi, Maryam Yazdani Manbohi, Ahmad Mira, Seyed Sahab |
| collection | PubMed - marine biology |
| contents | Spatial distribution and effects of temperature rise on coastal free-living nematode community in the South Caspian Sea. Taheri, Mehrshad Foshtomi, Maryam Yazdani Manbohi, Ahmad Mira, Seyed Sahab Animals Nematoda Temperature Biodiversity Oceans and Seas Ecosystem In the present study, the spatial distribution of coastal free-living nematodes was first investigated at six different stations. The highest density, number of species, and Shannon diversity were recorded at Sisangan station. Subsequently, Sisangan station was chosen for studying the responses of the coastal free-living nematode community to increased surface water temperature (Field control = 20 °C, Treatment 1 = 24 °C, Treatment 2 = 27 °C, and Treatment 3 = 30 °C) experimentally over a period of 50 days. A total of thirteen species from eleven genera were identified. The genus Daptonema and the species Daptonema karabugasensis being the most dominant in all treatments. The highest total density and total Shannon index were recorded in the T3 treatment. There were no significant differences in the total number of species and the evenness index among the treatments. Changes in temperature significantly affected the community structure, primarily due to the presence or absence of specific species. SIMPER analysis showed that some species like Daptonema karabugasensis, Tripyloides marinus and Adoncholaimus araelensis were dominant within the community, although their relative abundance declined at the T2 and T3 treatments. In contrast, the relative abundance of Chromadorella parapoecilosoma and Chromadorita tenuis increased with rising temperatures in these treatments. The number of gravid females and juveniles also rose with temperature, peaking in the T3 treatment. As the temperature rose, the proportion of predators/omnivores (2B) in the community gradually increased, although the epistrate feeders (1B) remained dominant across all communities. |
| format | Artículo científico |
| id | pubmed_40086091 |
| institution | PubMed |
| language | en |
| publishDate | 2025 |
| publisher | Marine pollution bulletin |
| record_format | pubmed |
| spellingShingle | Spatial distribution and effects of temperature rise on coastal free-living nematode community in the South Caspian Sea. Taheri, Mehrshad Foshtomi, Maryam Yazdani Manbohi, Ahmad Mira, Seyed Sahab Animals Nematoda Temperature Biodiversity Oceans and Seas Ecosystem Spatial distribution and effects of temperature rise on coastal free-living nematode community in the South Caspian Sea. Taheri, Mehrshad Foshtomi, Maryam Yazdani Manbohi, Ahmad Mira, Seyed Sahab Animals Nematoda Temperature Biodiversity Oceans and Seas Ecosystem In the present study, the spatial distribution of coastal free-living nematodes was first investigated at six different stations. The highest density, number of species, and Shannon diversity were recorded at Sisangan station. Subsequently, Sisangan station was chosen for studying the responses of the coastal free-living nematode community to increased surface water temperature (Field control = 20 °C, Treatment 1 = 24 °C, Treatment 2 = 27 °C, and Treatment 3 = 30 °C) experimentally over a period of 50 days. A total of thirteen species from eleven genera were identified. The genus Daptonema and the species Daptonema karabugasensis being the most dominant in all treatments. The highest total density and total Shannon index were recorded in the T3 treatment. There were no significant differences in the total number of species and the evenness index among the treatments. Changes in temperature significantly affected the community structure, primarily due to the presence or absence of specific species. SIMPER analysis showed that some species like Daptonema karabugasensis, Tripyloides marinus and Adoncholaimus araelensis were dominant within the community, although their relative abundance declined at the T2 and T3 treatments. In contrast, the relative abundance of Chromadorella parapoecilosoma and Chromadorita tenuis increased with rising temperatures in these treatments. The number of gravid females and juveniles also rose with temperature, peaking in the T3 treatment. As the temperature rose, the proportion of predators/omnivores (2B) in the community gradually increased, although the epistrate feeders (1B) remained dominant across all communities. |
| title | Spatial distribution and effects of temperature rise on coastal free-living nematode community in the South Caspian Sea. |
| topic | Animals Nematoda Temperature Biodiversity Oceans and Seas Ecosystem |
| url | https://pubmed.ncbi.nlm.nih.gov/40086091/ |