{"corpus_id":16884234,"paper_sha":null,"doi":"10.1007/s10750-016-2700-3","arxiv_id":null,"pmid":null,"pmcid":null,"mag_id":2294094397,"dblp_id":null,"acl_id":null,"title":"Flexible prey handling, preference and a novel capture technique in invasive, sub-adult Chinese mitten crabs","year":2016,"publication_date":"2016-03-07","venue":"Hydrobiologia","journal":{"name":"Hydrobiologia","pages":"135-147","volume":"773"},"journal_issn":null,"journal_title":null,"publication_types":[],"pubmed_pub_types":null,"s2_fields_of_study":["Biology","Environmental Science"],"reference_count":58,"citation_count":15,"influential_citation_count":2,"is_open_access":true,"arxiv_categories":null,"arxiv_license":null,"arxiv_journal_ref":null,"mesh_headings":null,"chemicals":null,"comments_corrections":null,"source_flags":1,"s2_open_access_pdf_url":"https://link.springer.com/content/pdf/10.1007/s10750-016-2700-3.pdf","s2_open_access_landing_url":"https://www.semanticscholar.org/paper/57bd60f879ea68aa5d883ff9cce7b3837b9dafee","s2_open_access_license":"CCBY","s2_open_access_status":"HYBRID","pmc_open_access_pdf_url":null,"pmc_open_access_landing_url":null,"pmc_open_access_license":null,"pmc_open_access_status":null,"unpaywall_open_access_pdf_url":null,"unpaywall_open_access_landing_url":null,"unpaywall_open_access_license":null,"unpaywall_open_access_status":null,"abstract":"Eriocheir sinensis (Crustacea: Brachyura: Varunidae) is one of only two crabs on the world’s list of 100 most invasive aquatic invertebrates. This crab has successfully invaded NE Europe as well as the United States, eastern Canada, southern Iraq and Tokyo Bay, Japan. In England, the River Thames population of E. sinensis continues to increase in numbers and disperse westward upstream, although little is known about foraging. The present study undertook a preference and prey handling study of sub-adult mitten crabs collected from the Thames. A digital camcorder, capable of detecting infrared light, was used in the laboratory overnight to identify crab food preference, document prey handling times and record behaviour. The test prey species, namely the amphipod Gammarus zaddachi, and two species of gastropod molluscs, Theodoxus fluviatilis and Radix peregra, were collected in the same habitat as the crabs, and all were consumed under laboratory conditions. Eriocheir were able to capture mobile G. zaddachi using a novel prey capture technique not previously described in brachyurans and use different skills for handling each prey species. This flexibility in prey handling may be an important contributory factor in their freshwater invasive capacity. Results indicated that the crabs had a preference for G. zaddachi which were consumed most frequently and preferentially over both mollusc species. Prey choice may be based on maximising net energy gain as consuming G. zaddachi was shown to provide the highest rate of potential energy consumption by the crab due, in part, to a much shorter handling time than for both species of snails.","claims":[{"public_id":"cl_57fde1a79f2de08a492010ffc8180d0b","status":"active","text":"Eriocheir sinensis captured mobile Gammarus zaddachi using a novel prey capture technique not previously described in brachyurans.","confidence":0.9,"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_57fde1a79f2de08a492010ffc8180d0b"},{"public_id":"cl_f69732b8bfcade0f90954fd3e15b12b7","status":"active","text":"Prey choice may be based on maximizing net energy gain, as consuming Gammarus zaddachi provided the highest rate of potential energy consumption due to much shorter handling time than for both snail species.","confidence":0.8,"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_f69732b8bfcade0f90954fd3e15b12b7"},{"public_id":"cl_b3c0f2f992ac181a686e7382e1876b5a","status":"active","text":"Sub-adult Chinese mitten crabs from the River Thames exhibited a preference for the amphipod Gammarus zaddachi over the gastropods Theodoxus fluviatilis and Radix peregra, consuming it most frequently and preferentially.","confidence":0.95,"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_b3c0f2f992ac181a686e7382e1876b5a"},{"public_id":"cl_1208c71c368dac7d58a7b1561d2897f5","status":"active","text":"The crabs used different handling skills for each prey species, demonstrating flexibility in prey handling that may contribute to their freshwater invasive capacity.","confidence":0.85,"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/claims/cl_1208c71c368dac7d58a7b1561d2897f5"}],"concepts":[{"public_id":"co_019170afbf39e1488d20dc5835a70a3c","status":"active","name":"Gammarus zaddachi","description":"An amphipod prey species collected from the same habitat as the crabs and consumed under laboratory conditions.","types":["prey species"],"aliases":[],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_019170afbf39e1488d20dc5835a70a3c"},{"public_id":"co_0d284c7647ab12948c8e2f51b4ac15bb","status":"active","name":"sub-adult Chinese mitten crabs","description":"Immature individuals of the invasive crab Eriocheir sinensis collected from the River Thames for the study.","types":["organism"],"aliases":["sub-adult mitten crabs"],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_0d284c7647ab12948c8e2f51b4ac15bb"},{"public_id":"co_37a900088b9e0865045221a27e75c025","status":"active","name":"flexibility in prey handling","description":"The ability of Eriocheir sinensis to use different skills for handling each prey species, contributing to their invasive capacity.","types":["behavior"],"aliases":[],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_37a900088b9e0865045221a27e75c025"},{"public_id":"co_444c9c0cbaf2408593efce1346f916ea","status":"active","name":"novel prey capture technique","description":"A previously undescribed method used by Eriocheir sinensis to capture mobile Gammarus zaddachi, not previously described in brachyurans.","types":["behavior"],"aliases":[],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_444c9c0cbaf2408593efce1346f916ea"},{"public_id":"co_69333f041fb06249057758e4b8064cc8","status":"active","name":"River Thames population","description":"The population of Eriocheir sinensis in the River Thames, England, which continues to increase in numbers and disperse westward upstream.","types":["population"],"aliases":["Thames population"],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_69333f041fb06249057758e4b8064cc8"},{"public_id":"co_6b20d74c5220bfd45648e70db007e551","status":"active","name":"Radix peregra","description":"A gastropod mollusc prey species collected from the same habitat as the crabs and consumed under laboratory conditions.","types":["prey species"],"aliases":[],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_6b20d74c5220bfd45648e70db007e551"},{"public_id":"co_84c31598912d9d377b5e476f0091cdf7","status":"active","name":"preference for Gammarus zaddachi","description":"The observed preference of the crabs for Gammarus zaddachi over both mollusc species, consumed most frequently and preferentially.","types":["finding"],"aliases":[],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_84c31598912d9d377b5e476f0091cdf7"},{"public_id":"co_861888d6ea8b2808284a97b6f58b47eb","status":"active","name":"invasive capacity","description":"The ability of Eriocheir sinensis to successfully invade freshwater habitats, potentially enhanced by flexible prey handling.","types":["trait"],"aliases":[],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_861888d6ea8b2808284a97b6f58b47eb"},{"public_id":"co_8938a05e6a14710bdf6cc9373785ba90","status":"active","name":"maximising net energy gain","description":"The proposed basis for prey choice, where consuming Gammarus zaddachi provides the highest rate of potential energy consumption due to shorter handling time.","types":["hypothesis"],"aliases":[],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_8938a05e6a14710bdf6cc9373785ba90"},{"public_id":"co_a91b45846e7843eff5ebd39f2d0b810b","status":"active","name":"Eriocheir sinensis","description":"The Chinese mitten crab, one of only two crabs on the world's list of 100 most invasive aquatic invertebrates.","types":["species"],"aliases":["Chinese mitten crab"],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_a91b45846e7843eff5ebd39f2d0b810b"},{"public_id":"co_d723f0133ffb4837cf468d1aab9da517","status":"active","name":"Theodoxus fluviatilis","description":"A gastropod mollusc prey species collected from the same habitat as the crabs and consumed under laboratory conditions.","types":["prey species"],"aliases":[],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_d723f0133ffb4837cf468d1aab9da517"},{"public_id":"co_ef49f276173270fa896af4d0a3b5188a","status":"active","name":"handling time","description":"The time required for the crab to handle and consume a prey item, which was much shorter for Gammarus zaddachi than for both snail species.","types":["measurement"],"aliases":[],"contributors":[{"id":2,"public_id":"4715169a40","public_label":"AK (4715169a40)","roles":["extraction"],"url":"https://sah.borca.ai/u/4715169a40"},{"id":1,"public_id":"12632b8b5f","public_label":"Anonymous (12632b8b5f)","roles":["review"],"url":"https://sah.borca.ai/u/12632b8b5f"}],"url":"https://sah.borca.ai/concepts/co_ef49f276173270fa896af4d0a3b5188a"}],"external_ids":{"DOI":"10.1007/s10750-016-2700-3","ArXiv":null,"PubMed":null,"PubMedCentral":null,"MAG":2294094397,"DBLP":null,"ACL":null},"open_access":{"is_open_access":true,"pdf_url":"https://link.springer.com/content/pdf/10.1007/s10750-016-2700-3.pdf","landing_url":"https://www.semanticscholar.org/paper/57bd60f879ea68aa5d883ff9cce7b3837b9dafee","source":"semantic_scholar","pdf_url_source":"semantic_scholar_open_access_pdf","license":"CCBY","status":"HYBRID","reason":null},"reference_availability":{"status":"available","references_indexed":true,"full_text_available":false,"full_text_source":null,"count_basis":"semantic_scholar_metadata","extraction_status":"not_applicable","reason":null},"source":{"provider":"episteme2","base_corpus":"semantic_scholar_dump","freshness_mode":"unknown","basis":["semantic_scholar_metadata","postgres_metadata"],"limits":["paper metadata is based on indexed upstream scholarly datasets","claims and concepts are available only for extracted papers","absence of claims or concepts means no extracted graph data is available in this response"],"status":"available","degraded":false,"degraded_reasons":[],"diagnostics":{"status":"available","degraded":false,"degraded_reasons":[],"metadata_status":"available","graph_status":"available","abstract_status":"available"},"source_flags":1},"paper_id":633560,"paper_uid":"36b0bf2a-dfbb-42ad-bf58-3e91f7463040","canonical_identity":{"paper_id":633560,"paper_uid":"36b0bf2a-dfbb-42ad-bf58-3e91f7463040","identity_status":"available","lookup_basis":"semantic_scholar_external_id","compatibility_path":"corpus_id"},"url":"https://sah.borca.ai/papers/16884234"}