Back to Search
Start Over
Autochthonous production contributes to the diet of wood-boring invertebrates in temperate shallow water
- Source :
- Oecologia. 196:877-889
- Publication Year :
- 2021
- Publisher :
- Springer Science and Business Media LLC, 2021.
-
Abstract
- Marine wood-boring invertebrates rapidly fragment coarse woody debris in the sea. These wood borers have the ability to digest wood cellulose, but other potential food sources have been less investigated. To assess the contribution of each potential food source to the diet of wood borers, we traced seasonal and environmental changes in δ13C of shipworms cultured under the same experimental conditions and related these changes to variations in δ13C of potential food sources, i.e., wood log and particulate organic matter (POM) by using multiple linear regression models rather than the Bayesian mixing model. Based on the standardized partial regression coefficients in the model, it became clear that wood-derived organic carbon was the main carbon source for the teredinids, and POM also accounted for 37.9% of the teredinids' carbon source. Furthermore, we clarified variations in supplemental nitrogen sources for the teredinids: one species depended on both POM and wood log, whereas the other three species depended on either POM or wood log for their nitrogen source. δ13C values of another wood-boring bivalve of Martesia (Pholadidae) increase as it grows, which suggests that the bivalve switches its feeding strategy from xylophagous to filter feeding as it grows. Wood borers are known to accelerate the transfer of organic materials derived from wood logs to marine ecosystems. However, this study suggests that autochthonous production strongly contribute to the diet of marine wood borers, helping them to decompose wood logs in temperate shallow water.
- Subjects :
- 0106 biological sciences
animal structures
Shipworms
complex mixtures
010603 evolutionary biology
01 natural sciences
Temperate climate
Animals
Marine ecosystem
Ecosystem
Ecology, Evolution, Behavior and Systematics
Invertebrate
Total organic carbon
Carbon Isotopes
biology
δ13C
Ecology
010604 marine biology & hydrobiology
technology, industry, and agriculture
Pholadidae
Water
Bayes Theorem
biology.organism_classification
Invertebrates
Wood
Diet
Coarse woody debris
Subjects
Details
- ISSN :
- 14321939 and 00298549
- Volume :
- 196
- Database :
- OpenAIRE
- Journal :
- Oecologia
- Accession number :
- edsair.doi.dedup.....847669eb606991f4f5eefaa83f3e2064
- Full Text :
- https://doi.org/10.1007/s00442-021-04973-0