Deep Demersal Fish Assemblage Structure in the Porcupine Seabight (Eastern North Atlantic): Results of Single Warp Trawling at Lower Slope to Abyssal Soundings
Deep Demersal Fish Assemblage Structure in the Porcupine Seabight (Eastern North Atlantic): Results of Single Warp Trawling at Lower Slope to Abyssal Soundings
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豪猪湾(北大西洋东部)的深底鱼类组合结构:在下坡至深渊探测时单曲拖网捕鱼的结果
DOI:
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发表时间:
1991
影响因子:
1.2
通讯作者:
M. Stehmann
中科院分区:
文献类型:
--
作者:
N. Merrett;R. Haedrich;J. Gordon;M. Stehmann
The dynamics of clearance, segregation and elimination of a marine bacterium, Moraxella sp., by the shore crab, Carcinus maenas (L.) has been studied utilizing fluorescent and radiolabelling techniques. In addition to the gills, the hepatopancreas was a major site of bacterial accumulation with sequestration occurring within haemocyte clumps and groups of stationary cells in this organ. The heart, excretory organ and subcuticular tissues also incorporated bacteria, but to a lesser extent. By the first day post-injection, many of the segregated micro-organisms had been removed from the organs. This latter process was not due to the exodus of laden haemocytes or of intact cell clumps from the host but seemed to result from lytic action by the host blood cells. Little material arising from such bacterial/haemocytic interaction was, however, immediately excreted, and much was relocated in the general body tissues as well as the gill nephrocytes.