We collected immature and adult cutlassfish, including the T.
Because of the presence of multiple cutlassfish species in the catch of trawlers, we identified the species that composed each sample on the basis of genetic analysis; the detailed methods and results of this analysis have been published in Wang et al.
Three new species of monogeneans parasitic on Atlantic cutlassfish Trichiurus lepturus (Perciformes, Trichiuridae) from Southeastern Brazil.
New Species of Metacaligus (Caligidae, Copepoda) Parasitic on the Cutlassfish (Trichiurus lepturus) of Taiwan, with a Cladistic Analysis of the Family Caligidae.
Metazoan parasites of the Atlantic cutlassfish
, Trichiurus lepturus (Osteichthyes: Trichiuridae) from the coastal zone of Rio de Janeiro State, Brazil.
The Argentine anchoita (Engraulis anchoita [Engraulidae]), rough scad (Trachurus lathami [Carangidae]), Atlantic cutlassfish (Trichiurus lepturus), Brazilian sardinella, and flying gurnard (Dactylopterus volitans) were the most abundant species (70% of the total biomass sampled).
The Atlantic cutlassfish and Brazilian sardinella, also abundant, displayed high frequency in the aggregations over the years ([FO.sub.T]=70% and 51%, respectively), also indicating wide distribution and persistency (Table 4).
At Los Cantiles and Isla Granito important prey were lanternfish (Diaphus sp.), northern anchovy (Engraulis mordax), Pacific cutlassfish (Trichiurus nitens), shoulderspot (Caelorinchus scaphopsis), and Pacific whiting (Merluccius productus) (Sanchez-Arias, 1992; Bautista-Vega, 2000), whereas at Isla Racito, important prey were Pacific sardine (Sardinops caeruleus), Pacific mackerel (Scomber japonicus), grunt (Haemulopsis spp.), rockfish (Sebastes spp.), and Pacific whiting (Merluccius spp.) (Orta-Davila, 1988).
We found nine main prey with IIMP average values [greater than or equal to] 10% (Table 3): the Pacific cutlassfish (Trichiurus lepturus), the Pacific sardine (Sardinops caeruleus), the plainfin midshipman (Porichthys spp.), myctophid no.
Yet, hard parts such as whole or sectioned otoliths and vertebral centra are most frequently used to age cutlassfish (Table 1).
The aims of our study were 1) to validate age estimates by using transverse sections of sagittal otoliths; 2) to verify Lee's phenomenon; 3) to evaluate the potential of using otolith size and weight to estimate age; 4) to fit the age-length data to the von Bertalanffy growth model; and 5) to provide age-growth information for management of cutlassfish resources from the South China Sea.
Snake mackerels and cutlassfishes
of the world (families Gempylidae and Trichiuridae).