Abundance and diversity of deep-sea crustaceans (Decapoda and Isopoda) in the upper slope of state of Pernambuco–Brazil: With five new records

In this paper the taxonomic composition, abundance, diversity and distribution of the deep-sea crustaceans collected from upper slope of Pernambuco, northeast Brazil, were described in order to provide baseline data for extend local fauna knowledge. Specimens were collected by standardized fishing sets with bottom baited traps between October 2014 to March 2018, at depths ranging from 200 to 600 m. Catch composition was consisted of 12 species (N = 690) distributed in two orders: Decapoda (57.8%) and Isopoda (42.2%). Five species were new occurrences to state of Pernambuco: three species of Cirolanidae (Bathynomus giganteus, B. miyarei and B. obtusus) and two of Paguroidea (Mixtopagurus paradoxus and Paguristes inconstans). It was observed a striking catch predominance of the soldier striped shrimp Plesionika edwardsii (CPUE 44.67 ind/trap) followed by giant isopod B. miyarei (CPUE 30.33 ind/trap) overall. In terms of latitudinal section, south coast presented the highest CPUE (10.26 ind/trap), and night period was most representative (8.58 ind/trap). Results reported herein contribute to understand abundance and distribution at depth and latitudinal features as also providing new records of deep-sea crustaceans from the state of Pernambuco.