The three most abundant taxa in the NRR were Chironomidae larva (33%), Ostracoda
(seed shrimp, 22%), and Hyalella (18%).
This type is characterized by an association of pelagic foraminifera (i.e., Globigerina, Globigerinoides and Globorotalia), small benthic foraminifera (i.e., Ammonia beccarii andNeorotalia viennoti), Ditrupa, ostracoda
and small quartz grains.
The order Ostracoda
is divided into three suborders (i) Myodocopida (ii) Platycopida and (iii) Podocopida.
The fish consumed 27 food items, grouped into seven food categories: vegetal matter (leaves, roots, stalk and seeds), algae (Bacillariophyceae, Chlorophyceae, Cyanophyceae, Euglenophyceae, Oedogoniaceae, Zygnemaphyceae), detritus (organic and inorganic matter), fish (remains, scales, eggs and fingerlings), microcrustaceans (Cladocera, Copepoda, Rotifera, Ostracoda
), macroinvertebrates (Hirudinea and Oligochaeta) and aquatic insects (Diptera and Coleoptera).
A new Middle Ordovician arthropod fauna (Trilobita, Ostracoda
, Bradoriida) from the Lashkarak Formation, Eastern Alborz Mountains, northern Iran.
The influence of layers on zoobenthos was clear in Chaoborus (both biomass and abundance) and in the abundance of Sialis and Ostracoda
. As to total biomasses or abundances, only total biomass without Chaoborus was significantly connected to layers.
(1997): Multivariate analysis applied to total and living fauna: seasonal ecology of recent benthic ostracoda
off the North Cadiz Gulf Coast (SW Spain).
, Cladocera, and Copepoda were the main food items consumed for fishes associated with patches of Egeria spp.
The crustacean fauna include members of the Branchiopoda (clam shrimp, fairy shrimp and tadpole shrimp), Cladocera, Copepoda and Ostracoda
, all of which have eggs or larval stages that are resistant to desiccation and extreme temperatures.
1,73 OP 15 Nemertea Nemertinea III 1,63 OP 16 Polychaeta Hesionidae Hesionidae 1,48 OP 17 Crustacea Ostracoda
1,42 IF 18 Polychaeta Syllidae Syllidae 1,11 OP 19 Polychaeta Onuphidae Onuphis sp.
Remains of Ostracoda
and some radiolarians were also observed in this facies.
Pr - - - Allonais paraguayensis Michaelsen Re - - + Lumbriculidae Re + - - OSTRACODA