informe de la decimoctava reunion del comite cientifico - CCAMLR

Tabla 44: Estimaciones de la biomasa (en toneladas) y los intervalos de confianza del 95% (utilizando el
método elaborado por de la Mare) por estrato en las islas Orcadas del Sur (Subárea 48.2) en las tres
prospecciones analizadas (WG-FSA-99/32).
Especie Estrato Biomasa (toneladas)
1985 1991 1999
C. aceratus 50–150 m 108 (56–156) 928 (201–15606) 1859 (887–7594)
150–250 m 1119 (491–5313) 4014 (2423–8155) 5962 (2994–17599)
250–500 m 3949 (2004–11510) 11089 (6707–21490) 2610 (1344–7012)
Total 5175 (2997–12203) 16031 (10897–31093) 10431 (6628–22220)
C. gunnari 50–150 m 326 (96–7643) 74 (29–343) 501 (320–1002)
150–250 m 273 (129–1073) 2415 (1040–8526) 1249 (757–2591)
250–500 m 4225 (1764–18647) 21132 (10087–58918) 1267 (551–4280)
Total 4824 (2297–18318) 23621 (12274–61450) 3016 (2027–6073)
C. rastrospinosus 50–150 m 12 (3–40) 10 (4–34) 153 (73–623)
150–250 m 386 (179–1599) 605 (367–1191) 399 (282–640)
250–500 m 4586 (1890–20846) 14795 (8751–29750) 12881 (7373–29114)
Total 4983 (2254–15640) 15410 (9353–30368) 13434 (7921–28796)
G. gibberifrons 50–150 m 458 (237–675) 2089 (640–15999) 6248 (2304–49329)
150–250 m 2865 (1396–10585) 4141 (2741–7241) 10173 (5960–22700)
250–500 m 15642 (7702–50121) 47252 (22042–134375) 22479 (12840–50640)
Total 18965 (10637–53483) 53483 (27924–140646) 38900 (26091–82780)
L. larseni 50–150 m 4 (2–9) 3 (1–17) 45 (14–474)
150–250 m 141 (42–1635) 40 (21–96) 91 (47–249)
250–500 m 301 (151–909) 412 (215–1005) 151 (105–241)
Total 446 (239–1945) 455 (255–1049) 288 (205–718)
L. squamifrons 150–250 m 215 (11–489534) 57 (17–448) 875 (160–22497)
250–500 m 5858 (1308–93944) 14099 (5373–56560) 50059 (14345–372432)
Total 6073 (1444–495401) 14156 (5429–56617) 50934 (15129–373309)
N. rossii 50–150 m 2 (0–308) 58 (14–532)
150–250 m 22 (4–57) 27 (13–59) 61 (25–126)
250–500 m 140 (60–268) 384 (128–2257) 3160 (675–61159)
Total 163 (77–293) 412 (155–1719) 3278 (790–60672)
P. georgianus 50–150 m 25 (na) 2 (na) 167 (48–1425)
150–250 m 156 (50–1054) 349 (159–1121) 6504 (2350–35071)
250–500 m 4557 (1173–55578) 18498 (8975–50461) 2057 (910–6836)
Total 4739 (1319–42432) 18847 (9316–50810) 8728 (4138–36461)
398