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Benthic microalgae serve as the major food resource for porcelain crabs (Petrolisthes spp.) in oyster reefs: Digestive track content and pigment evidence
Journal of Experimental Marine Biology and Ecology ( IF 2 ) Pub Date : 2016-10-01 , DOI: 10.1016/j.jembe.2016.06.005
Paul V Zimba 1 , Erin M Hill 1 , Kim Withers 1
Affiliation  

Suspension-feeding porcelain crabs (Petrolisthes spp.) are often the most abundant decapod crustaceans in oyster reef habitat. Analysis of water column and subtidal algal biomass from three Texas estuaries suggests that planktonic food resources are insufficient for porcelain crab growth. Pigment composition of porcelain crab muscle and digestive track contents included the diatom pigment fucoxanthin and cyanobacterial pigment canthaxanthin with digestive track samples containing attached (adnate) benthic diatoms as well as benthic cyanobacteria not found in the water column. Feeding appendages on porcelain crabs include numerous cirri with serrated edges as well as fewer more brush-like longer units. Benthic food resources are in sufficient supply to support porcelain crab biomass.

中文翻译:

底栖微藻是牡蛎礁中瓷蟹(Petrolisthes spp.)的主要食物来源:消化道含量和色素证据

悬浮摄食瓷蟹(Petrolisthes spp.)通常是牡蛎礁栖息地中最丰富的十足目甲壳类动物。对德克萨斯州三个河口的水柱和潮下藻生物量的分析表明,浮游食物资源不足以支持瓷蟹的生长。瓷蟹肌肉和消化道内容物的色素成分包括硅藻色素岩藻黄质和蓝藻色素角黄素,消化道样品含有附着(贴壁)底栖硅藻以及未在水柱中发现的底栖蓝藻。瓷蟹的摄食附属物包括许多边缘呈锯齿状的卷毛,以及较少的刷状较长单位。底栖食物资源供应充足,支持瓷蟹生物量。
更新日期:2016-10-01
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