Survival rate (SR) and growth rate (GR) were tested with various feed sources to identify an appropriate feed to improve the productivity in the early life stage of the rock worm Marphysa sanguinea (Montagu, 1813) (Eunicidae: Polychaeta). In addition, feed supply rates were also examined. Three experiments were performed to identify the appropriate feed for the juvenile stages of M. sanguinea. ...

Lepidonopsis humilis (Augener, 1922) has been considered as an amphiamerican species, widely recorded in both the Grand Caribbean region and the Tropical Eastern Pacific. Based on type material and additional materials, L. humilis is redescribed herein and its distribution clarified and restricted. Furthermore, the identity of specimens from the Mexican Pacific is clarified and a new species L....

Morphology has been the subject of several studies in Eunice specially in the context of the taxonomy and evolutionary relationships of taxa within this genus. In this study we opt for a morphometric approach comparing five species of Eunice to assess if it was possible to delimitate them by shape variables. The morphology of E. fucata, E. insularis, E. cf. ornata, E. rubra, and Eunice sp. was ...

Nghiên cứu thành phần loài và phân bố động vật đáy trong khu vực nhận chìm nhà máy nhiệt điện Vũng Áng 1 - Hà Tĩnh được tiến hành vào tháng 9/2019. Kết quả đã xác định 113 đáy, gồm 7 nhóm đại diện (Crustacea, Bivalvia, Gastropoda, Polychaeta, Echinodermata Chordata Scaphopoda). Ba chiếm ưu thế hệ sinh thái là Hai mảnh vỏ có 49 loài, Thân mềm Chân bụng 44 Giáp (Crustacea) 11 loài. Other groups a...

Data about the taxonomic composition and spatial distribution of bottom invertebrates Kronotsky Gulf were obtained on results grab survey carried in September 2002. Analysis samples revealed 72 species Polychaeta, 21 molluscs (Bivalvia), 17 crustaceans (mostly Amphipoda), 2 echinodermata (Echinoidea Ophiuroidea). The average biomass depth range 25–200 m was 242±116 g/m where density 306±51 orga...