Cephalopoda |
Oegopsida |
Brachioteuthidae
Entorno: milieu / zona climática / rango de profundidad / gama de distribución
Ecología
Pelagic-oceanic; rango de profundidad 0 - 3000 m (Referencia 275). Subtropical; 68°N - 5°N, 170°E - 36°E
Worldwide. Tropical to polar.
Longitud en la primera madurez / Tamaño / Peso / Edad
Madurez: Lm ? range ? - ? cm Max length : 17.0 cm ML macho / no sexado; (Referencia 97142)
Oceanic; occurs from near the surface through midwaters, the continental slope, to 3 000 m depth. Spawning season appears to be considerably extended with regard to the cosmopolitan distribution of the species complex. Consequently, recently hatched paralarvae and juveniles are found in epipelagic waters throughout the year. In the North Atlantic, paralarvae are particularly abundant from May to August and in February; in the Mediterranean and in upwelling areas off northwestern Africa between 10°N and 30°N, from April to July, September, and from December to February.
Paralarvae and juveniles are epipelagic to mesopelagic, then undergo ontogenetic descent to mesopelagic and bathypelagic zones as adults. In the western Atlantic (approximately 39°N 72°W) paralarvae, juveniles and subadults were captured in slope
and eddy water masses at 43 to 750 m, with paralarvae and juveniles at less than 300 m and adults greater than 300 m; diurnal vertical migration was indicated. Off Hawaii specimens were caught in closing nets at 830 to 975 m during day and 100 to 150 m
at night; open net captures were made at 975 to 1 000 m in daytime and at 50 and 250 m at night. Likewise, in the Mediterranean Sea specimens were caught in closing nets at 150 m during night time, and at 540 to 615 m by trawl nets during the day. Horizontal plankton net sampling at 100 m, 350 m and 650 m during sunrise, noon, sunset and midnight yielded a preponderance of juvenile B. riisei at 350 m. Frequent prey of sperm whales, striped dolphins, swordfish (Xiphias gladius) in Azorean waters, and giant red shrimp (Aristaeomorpha foliacea) in the Strait of Sicily, Mediterranean Sea. Known to prey on krill in Antarctic seas (Ref. 97142).
Ciclo vital y comportamiento de apareamiento
Madurez | Reproducción | Puesta | Huevos | Fecundidad | Larva
Members of the class Cephalopoda are gonochoric. Male and female adults usually die shortly after spawning and brooding, respectively. Mating behavior: Males perform various displays to attract potential females for copulation. During copulation, male grasp the female and inserts the hectocotylus into the female's mantle cavity where fertilization usually occurs. Life cycle: Embryos hatch into planktonic stage and live for some time before they grow larger and take up a benthic existence as adults.
Roper, C.F.E., M.J. Sweeney and C.E. Nauen 1984 FAO Species Catalogue. Vol. 3. Cephalopods of the world. An annotated and illustrated catalogue of species of interest to fisheries. FAO Fish. Synop. 125(3):277p. Rome: FAO. (Referencia 275)
Situación en la Lista Roja de la UICN
(Referencia 130435: Version 2025-2 (Global))
Estatus CITES (Referencia 108899)
Not Evaluated
CMS (Referencia 116361)
Not Evaluated
Amenaza para el ser humano
Usos humanos
| FishSource |
Herramientas
Más información
Ciclo de vidaReproducciónMadurezFecundidadPuestaHuevosDesarrollo de los huevosLarva FisiologíaConsumo del oxígeno
Relacionados con el ser humanoSellos, monedas, varios
Fuentes de Internet
Estimaciones basadas en modelos
Temperatura preferida
(Ref.
115969): 3.7 - 13.9, mean 7.1 (based on 977 cells).
Vulnerabilidad pesquera
Low vulnerability (10 of 100).
