Blacktip reef sharks Carcharhinus melanopterus were the most abundant predator in the lagoons at Palmyra Atoll. They were evenly distributed throughout the lagoons, although there was some evidence of sexual segregation. Males reach sexual maturity between 940-1,020 mm L(T). Bird remains were found in some C. melanopterus stomachs. C. melanopterus at Palmyra appear to be smaller than those at o...

The Aleiodes melanopterus (Erichson, 1848) species-group includes 21 species, of which seven are known from the Neotropical region: Aleiodes flavistigma Shaw, 1993, Aleiodes lucidus (Szépligeti, 1906), Aleiodes melanopterus, Aleiodes mexicanus Cresson, 1869, Aleiodes politiceps (Gahan, 1917), and the new species Aleiodes shaworumsp. n. and Aleiodes vassunungasp. n. Distribution ranges of Aleiod...

We describe the mating behavior of free-ranging Blacktip Reef Sharks, Carcharhinus melanopterus, at Palmyra Atoll. This is the first primary report of mating in C. melanopterus and the first direct observation of mating for an obligate swimming shark species. Similar to that in other nonobligate swimming shark species, mating in C. melanopterus was characterized by multiple males following a si...

AUTHORS Vasile PARVULESCU / UNIVERSITY OF BUCHAREST, BDUL REGINA ELISABETA, 4-12, BUCHAREST Iunia PODOLEAN / UNIVERSITY OF BUCHAREST, BDUL REGINA ELISABETA, 4-12, BUCHAREST Cristina RIZESCU / UNIVERSITY OF BUCHAREST, BDUL REGINA ELISABETA, 4-12, BUCHAREST Camelia BALA / UNIVERSITY OF BUCHAREST, BDUL REGINA ELISABETA, BUCHAREST Lucian ROTARIU / UNIVERSITY OF BUCHAREST, BDUL REGINA ELISABETA, 4-1...

Abstract The increasing frequency and duration of marine heatwaves attributed to climate change threatens coastal elasmobranchs may exacerbate existing anthropogenic stressors. While the elasmobranch stress response has been well studied, role unique corticosteroid—1α-hydroxycorticosterone (1α-OHB)—in energy balance is not understood. Therefore, 1α-OHB’s utility as a biomarker in conservation p...

The Indian assassin bug, Ectomocoris simulans Distant, 1919 (Hemiptera: Hetero- ptera: Reduviidae: Peiratinae) is redescribed, with habitus images and figures of male genitalia provided. melanopterus 1919, syn. nov., E. xavierei Vennison & Ambrose, 1990, are placed as its junior subjective synonyms. Types the above three nominal species were examined, illustrated, lectotypes designated.

Anacanthorus franciscanus sp. n. and Anacanthorus brevicirrus sp. n. (Dactylogyridae) are described from the gills of the matrinchã, Brycon orthotaenia Günther (Characidae), from the Rio São Francisco in Brazil. Anacanthorusfranciscanus most closely resembles Anacanthorus e[egans and A. kruidenieri from the matrinchõ, Brycon melanopterus, of the Amazon River Basin. It differs from these species...