Penelitian ini bertujuan untuk mengetahui struktur komunitas plankton yang meliputi kelimpahan, keanekaragaman, keseragaman, dominansi, kesamaan habitat di Perairan Pantai Tanjung Kasuari. Hasil pengamatan menunjukkan bahwa fitoplankton ditemukan terdiri dari 3 kelas yaitu Bacillariophyceae (27 genera), Cyanophyceae (1 genus), dan Dinophyceae (3 genera): zooplankton 7 kelompok Crustacea (8 Prot...

Marine dinoflagellates of the genus Alexandrium are the proximal source of neurotoxins associated with Paralytic Shellfish Poisoning. The production of these toxins, the toxin biosynthesis and, thus, the cellular toxicity can be influenced by abiotic and biotic factors. There is, however, a lack of substantial evidence concerning the toxins' ecological function such as grazing defense. Waterbor...

The ecology of senescence in marine zooplankton is not well known. Here we demonstrate senescence effects in the marine copepod Oithona davisae and show how sex and sexual selection accelerate the rate of ageing in the males. We show that adult mortality increases and male mating capacity and female fertility decrease with age and that the deterioration in reproductive performance is faster for...

Paradinium and Paradinium-like parasites were detected in various copepod hosts collected in the NW Mediterranean Sea, the North Atlantic Ocean, and the Godthåbsfjord (Greenland). The identity and systematic position of the parasitic, plasmodial protist Paradinium was investigated on the basis of SSU rDNA and morphology. SSU rDNA sequences were obtained from 3 specimens of Paradinium poucheti i...

temporal and spatial variation of zooplankton abundance, composition and biomass were examined on the chabahar bay, oman sea. the chabahar bay, a subtropical and semi-enclosed bay, provides an ideal breeding ground for many fish and shellfish. five stations were investigated along the bay. this area is under the influence of the indian ocean seasonal monsoons. zooplankton was collected with ver...

The mesozooplankton community was analyzed over a 6-year period (2013-2018) during the post-eruptive stage of submarine volcano Tagoro, located south island El Hierro (Canary Archipelago, Spain). Nine cruises from March 2013 to 2018 were carried out in two different seasons, spring (March-April) and autumn (October). A high-resolution study across main cones Tagoro volcano, as well large number...

The impact of the rapidly changing Arctic on zooplankton community structure and seasonal behaviour is not yet understood. Here we examine 6 months under-ice observations from N-ICE2015 expedition (January to June 2015) in Nansen Basin Yermak Plateau north Svalbard. Stratified sampling water column was done with MultiNet during entire expedition, upper 5 m below sea ice performed April-May by d...

We investigated diets of 24 Barents Sea zooplankton taxa to understand pelagic food-web processes during late summer, including the importance sea ice algae-produced carbon. This was achieved by combining insights derived from multiple and complementary trophic marker approaches construct individual aspects feeding. Specifically, we determined proportions algal-produced fatty acids (FAs) reflec...