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This work constitutes an effort to evaluate benthic biodiversity in Bahía de Los Ángeles, Gulf of California, Mexico. To characterize macrofauna at the family level, 2 sampling campaigns took place during summer 2013 and winter 2014 6 coastal stations. A total 18,403 invertebrates were collected, 7,880 10,523 winter. These grouped into phyla 110 families, comprising 39 mollusks, 33 crustaceans,...

Examined digestive tracts of the red drum in Mississippi Sound contained mostly decapod crustaceans. Crustaceans accounted for 34 of 59 encountered taxa, more than reported from any other region. Nevertheless, the general diet for 104 fish with food contents out of the 107 examined is similar to that reported for red drum in several other studies from other areas. In addition to crustaceans, fi...

As a result of processing materials from the expeditions Saint-Petersburg State University in 2012–2013 and Transarctic expedition 2019, 131 polychaete taxa were recorded, which 124 identified to species. On basis data previous recent collections, general list polychaetes Kara Sea was updated; it includes 209 species belonging 98 genera, 37 families, 15 orders. The following are reported for fi...

Spiralian development is characterized by the conservation of spindle orientation and cell geometry during early cleavage stages, as well as features of the ultimate fates of identified cells. This complex set of characters is shared by a number of animal lineages including nemerteans, polyclad platyhelminthes, annelids and mollusks. How a similar, highly stereotypical cleavage program can give...

Introduction Sustainable growth of the salmon aquaculture industry is highly dependent on availability new feed resources as well improved management and utilization waste streams from production. Polychaetes are capable recapturing recycling valuable biomolecules contained in sludge at same time constitute a possible resource for aquafeeds. Material methods In this study, potential Hediste div...

•Among the Lepidonotinae, two species of Lepidonotus are referred to new genera: L. dictyolepis Haswell, from Australia, to Augenerilepidonotus, and L. kumari Rullier, from Malaya, to Olgalepidonotus. As part of an on-going study on the polynoid polychaetes, two species that were described under Lepidonotus Leach, 1816, L. dictyolepis Haswell, 1883, from Australia, and L. kumari Rullier, 1970, ...