期刊
JOURNAL OF EXPERIMENTAL MARINE BIOLOGY AND ECOLOGY
卷 483, 期 -, 页码 53-58出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jembe.2016.06.005
关键词
Benthic diatoms; Filamentous cyanobacteria; Pigments; Porcelain crab; Oyster reef; Trophic coupling
资金
- USEPA [MX00D19214-02014-2016]
- NSF/NIH [1 R01 ES21968-1]
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. (C) 2016 Elsevier B.V. All rights reserved.
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