TRACKING MOVEMENTS OF DEEP DEMERSAL FISHES IN THE PORCUPINE SEABIGHT, NORTHEAST ATLANTIC-OCEAN

被引：24
|
作者：
BAGLEY, PM
SMITH, A
PRIEDE, IG
机构：
[1] University of Aberdeen, Department of Zoology, Aberdeen, AB9 2TN, Tillydrone Avenue
来源：
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM | 1994年 / 74卷 / 03期
关键词：
D O I：
10.1017/S0025315400047603
中图分类号：
Q17 [水生生物学];
学科分类号：
071004 ;
摘要：
Miniature acoustic transponders wrapped in bait were deployed on the sea floor in the continental rise and slope regions of the Porcupine Seabight during August 1992. These were ingested by Centroscymnus coelolepis (Chondrichthyes, Selachii) at 1517-1650 m depth, Antimora rostrata (Osteichthyes, Moridae) at 2020-2501 m depth, and Coryphaenoides (Nematonurus) armatus (Osteichthyes, Macrouridae) at 2501-4050 m depth. Fish with baits in their stomachs were tracked using a scanning sonar deployed on the sea floor. All fish had moved out of range of the sonar (500 m) within 3-9 h of the bait reaching the sea floor, indicating no site fidelity. Swimming speed of C. (N.) armatus increased with depth from 0.056 m s-1 at 2500 m to 0.109 m s-1 at 4000 m. This is partially explained by a bigger-deeper trend in fish size.
引用
收藏
页码：473 / 480
页数：8
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