Canals of Sundarbans in India are highly vulnerable to anthropogenic pressures which directly or indirectly impact the biological components such ecosystems. Being at base trophic pyramid, phytoplankton is exposed environmental stressors and will be reflected upper strata aquatic food chain. Hence, communities along with their interrelationship parameters were assessed Bhetkimari canal, a semi-...

investigation on the food and feeding habits of silver carp in gobindsgar reservoir indicated that the diet of silver carp was dominated by cyclotella spp. (diatom) followed by chlorophyceae, cyanophyceae, crustacea, dianophyceae and rotifera. the size range of cyclotella spp. varied between 5-25 µm indicating that silver carp is capable to collect the food particles smaller than distance betwe...

Sungai Musi merupakan sungai terpanjang di Pulau Sumatera yang banyak dimanfaatkan masyarakat sebagai jalur transportasi dan berbagai aktivitas lainnya. habitat fitoplankton dapat menjadi indikator kualitas perairan. Penelitian ini bertujuan mengetahui kelimpahan, keragaman, keseragaman, dominansi, menganalisis potensi HABs Perairan bagian hilir. Hasil pengamatan pada 10 stasiun, ditemukan 6 ge...

In hypersaline water bodies, the microphytobenthos plays a very important ecosystem role and demonstrates variability along with salinity change. Due to anthropogenic activity, sharp increase in Bay Sivash occurred after 2014. To assess changes microalgae community during bay transformation, study was conducted four times 2018 2019. At every sampling period, samples were taken gradient (from 7 ...

Integrated multi-trophic aquaculture (IMTA) is a way to help preserve the environment while maintaining good level of total production. An ecologically semi-intensive pond system was designed in which polyculture fishpond associated with lagoon planted macrophytes bioremediate water. The properties this “semi-intensive coupled” (SIC) were compared those (SI) and extensive (E) systems, each cont...

Recently, toxins and off-flavor compounds produced by phytoplankton in freshwater ponds have become a concern as it affects consumer acceptability food safety. The purpose of this research was to investigate the relationship between abundance water-sediment physicochemical parameters high-nutrient-load Nile tilapia (Oreochromis niloticus) from three sub-districts (upazila) north-central Banglad...

Hexose formiiation during photosynthesis has been presumed to occur by means of the reductive pentose phosphate cycle (3). An integral part of this cycle is the condensation of two molecules of triosephosphate to yieldl fructose-1,6-diphosphate (FDP) in a reaction catalyzed by aldolase. In support of aldolase participating in photosynthesis, Tewfik and Stumpf (35) showed that aldolase was prese...

With the purpose to make a review on the red tides occurence at mexican coasts, previous studies were analyzed. Dinoflagellates seem to be the main cause of toxic events mainly Gonyaulax polygramma, Gymnodinium catenatum, Pyrodinium bahamense var. compressum and Ptychodiscus brevis. There are other species which cause red tides but are not toxic. They are: Mesodinium rubrum, Gonyaulax triacanth...

Lonar lake is a inland saline crater lake of only one of its kind in Asia, which depicts unique limnology and biodiversity. Studies were undertaken to evaluate its unique ecosystem. Wetlands of this lake have archaeological significance. Due to its importance to the humans, studies were carried out with regard to its water quality in terms of physico-chemical characteristics, heavy metal concen...