Diets are a critical factor in the artificial production of lobster larvae, yet knowledge diet requirements spiny especially at its early life stages is rarely investigated. Thus, present study aimed finding potential diets larva by analyzing stomach content wild-caught ornate lobster, Panulirus ornatus, three different stages: puerulus, post-puerulus, and juvenile using eDNA metabarcoding. The...

copepods are the main zooplankton assemblages in most tropical and semi-tropical estuaries. in this research, copepod population dynamics were investigated in helleh river estuary, persian gulf during four seasons beginning from summer 2011 to spring 2012.  samples were taken using plankton net with mesh size of 140 µm and vertical towing from 5 fixed-stations in mid-season. results showed that...

In the present study, the acute toxicity of 10 polycyclic aromatic hydrocarbons (PAHs) associated with the Prestige fuel oil spill (Spain, 2002) were evaluated, either as single substances or in mixtures, in adults of the copepod Oithona davisae. All but dimethylphenanthrene had negative effects on O. davisae survival at concentrations below their water solubility, with 48-h median lethal conce...

This study was conducted between January and December, 2014 in four sampling stations of the Bay Bengal, namely Teknaf beach, Inani St. Martin’s Island Sonadia Island. A total 39 plankton species were recorded from 4 stations. Among those, 8, 3,2,14 2 belonged to algae, protozoa, rotifera, copepods, ostracods respectively. Copepoda most abundant zooplankton at all The highest monthly density 11...

Onboard incubation experiments were conducted to examine the feeding rates and selectivity of the cyclopoid copepod Oithona similis on natural assemblages of microplankton during the spring bloom in the Oyashio region. O. similis cleared ciliates at higher rates (2.8–11.9 mL copepod 1 d ) than dinoflagellates (1.4 mL copepod 1 d ), with no detectable ingestion of diatoms. Clearance increased wi...

Through the use of mesocosm experiments, we show that an unusually early spring phytoplankton bloom can be induced by intermittent high-light periods. We performed mesocosm experiments where plankton assemblages from Kiel Bight (Western Baltic Sea) received a light regime based on the natural seasonal irradiance dimmed to 43% of surface irradiance of cloudless days, starting with irradiance lev...

We used Woods Population Surface Method to estimate stage-specific mortality rates for populations of Calanus finmarchicus, Pseudocalanus elongatus, and Oithona similis from abundance data obtained during the Fladen Ground Experiment (FLEX 1976) in the northern North Sea. Temperatures from the day and night depth distributions of each developmental stage were used to force temperature functions...