نتایج جستجو برای: acartia clausi
تعداد نتایج: 490 فیلتر نتایج به سال:
Toxic attributes of the brown tide alga Aureococcus anophagefferens affect the ability of benthic and protistan grazers to control blooms. Yet, little is known regarding the effect of A. anophagefferens on a dominant component of the microzooplankton community, copepod nauplii. This study describes the grazer–prey relationship between nauplii of the calanoid copepod Acartia tonsa and A. anophag...
Velocity differences drive all encounter processes. Therefore, knowledge of both prey and predator motility are essential in order to understand feeding behavior and predict food acquisition rates. Here, we describe and quantify the motility behavior of young and old naupliar stages of 6 copepods (Centropages typicus, Calanus helgolandicus, Temora longicornis, Acartia tonsa, Eurytemora affinis ...
این مقاله به بررسی اثرات درجه حرارت و شوری آب در روند تراکم مراحل مختلف چرخه زندگی کوپه پود Acartia tonsa در دو تیمار شوری psu ١±١١ و ١ ± ١٢ (خطای استاندارد ±میانگین) و دو تیمار درجه حرارت ٢oC ± ٢٥ و ٢± ٢٣ پرداخته است. این بررسی نشان داد که در روزهای دهم تا دوازدهم کشت، حدود ٣٩ -٢٤ درصد نمونه ها مرحله کوپه پودیت را تکمیل کرده و وارد مرحله بلوغ جنسی خواهند شد. در روز ١٦ از کشت حدود ٦٨ درصد...
Coastal ecosystems of Bushehr are shallow environments subject to human impacts, including shrimp aquaculture and urban expansion activities. A spatial-temporal study was conducted in order to assess the actual ecological status of the creeks, estuary and marine sites on the basis of their taxonomic composition and density of mesozooplankton. Zooplankton species distribution and abundance data ...
Atomic C:N ratios in calanoid copepods were generally below the Redfield ratio (6.6), except for the fifth copepodid stage of Calanus sp. The C:P ratios in copepods were generally close to, or higher than the Redfield ratio of 106, but low C:P ratios were found in Acartia clausi (63 ± 7) and in the cladocerans (Podon sp.: 34 ± 5 and Evadne sp.: 59 ± 22). Recently, the indirect effect of an appa...
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