Abstract
Results of macrozoobenthos surveys (in total 86 stations, 432 sediment samples) in the area of marine pipeline route at Piltun-Astokhskoye oil field in July of 2007-2010 are presented. The sediment samples were collected by van Veen sampler (1-3 samples per site from the area 0.05 m 2 , 0.11 m 2 , or 0.25 m 2 ) at the depth 0-45 m. The samples were washed by sea water through the sieve with mesh 1 mm, and the residues including macrobenthos were preserved by 4 % buffered formaldehyde for later processing with total identification of macrozoobenthos (species composition, abundance and biomass) in the laboratories of Far-Eastern Research Hydrometeorological Institute and Institute of Marine Biology in Vladivostok, following to standard techniques. The data were analysed using the PRIMER software including multidimensional cluster analysis of samples by hierarchical agglomerative method of group-average linking based on Bray-Curtis similarity of the macrozoobenthos species composition by biomass. In total, 272 species of macrozoobenthos are identified at the surveyed area, with the highest species number for amphipods (86 species) and polychaetes (72 species). Mean total abundance of macrozoobenthos is 26556.4 ± 2660.9 ind/m 2 , its mean total biomass is 669.7 ± 40.3 g/m 2 . Cumaceans and amphipod crustaceans are the most numerous groups; sea-urchins, bivalves and cumaceans have the highest biomass. Five benthic communities are defined by cluster analysis. There is concluded that the bottom sediments and depth are the main factors determining the characteristics and distribution patterns of benthic assemblages at present time.
Highlights
Results of macrozoobenthos surveys in the area of marine pipeline route at Piltun-Astokhskoye oil field in July of 2007–2010 are presented
The sediment samples were collected by van Veen sampler (1–3 samples per site from the area 0.05 m2, 0.11 m2, or 0.25 m2) at the depth 0–45 m
The samples were washed by sea water through the sieve with mesh 1 mm, and the residues including macrobenthos were preserved by 4 % buffered formaldehyde for later processing with total identification of macrozoobenthos in the
Summary
СООБЩЕСТВА МАКРОЗООБЕНТОСА В РАЙОНЕ ТРАССЫ МОРСКОГО ТРУБОПРОВОДА ПИЛЬТУН-АСТОХСКОГО. Приводятся результаты исследований сообществ макрозообентоса, полученные в течение четырехлетних наблюдений (2007–2010 гг.) в районе трассы морского трубопровода на Пильтун-Астохском месторождении. Определяющими характеристики и распределение группировок бентоса, в настоящее время являются тип донных отложений и глубина моря. Belan L.S., Belan T.A., Moshchenko A.V. Macrozoobenthos communities in the area of marine pipeline route at Piltun-Astokhskoye oil field (shelf of northeastern Sakhalin) and their long-term variability // Izv. TINRO. Results of macrozoobenthos surveys (in total 86 stations, 432 sediment samples) in the area of marine pipeline route at Piltun-Astokhskoye oil field in July of 2007–2010 are presented. Цель данной работы — рассмотреть результаты изучения состава, структуры и особенностей распределения сообществ макрозообентоса непосредственно в районе трассы подводного трубопровода Пильтун-Астохского месторождения в 2007–2010 гг
Sign-in/Register to view highlights & summary Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
