Trophic ecology and ontogenetic shift in the diet of the sicklefin smoothhound (Mustelus lunulatus) in the southeastern Pacific Ocean
The feeding habits of the sicklefin smoothhound (Mustelus lunulatus) were studied on the basis of analysis of stomach contents of 314 specimens, allowing the diet of this species to be determined by sex, size, and stage of sexual maturity and for changes in the dietary ontogeny to be identified. The...
Gespeichert in:
| Veröffentlicht in: | Fishery bulletin (Washington, D.C.) D.C.), 2019-07, Vol.117 (3), p.245-257 |
|---|---|
| Hauptverfasser: | , , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 257 |
|---|---|
| container_issue | 3 |
| container_start_page | 245 |
| container_title | Fishery bulletin (Washington, D.C.) |
| container_volume | 117 |
| creator | Mendez-Macias, Jose S Velazquez-Chiquito, Vanessa M Estupinan-Montano, Colombo Galvan-Magana, Felipe |
| description | The feeding habits of the sicklefin smoothhound (Mustelus lunulatus) were studied on the basis of analysis of stomach contents of 314 specimens, allowing the diet of this species to be determined by sex, size, and stage of sexual maturity and for changes in the dietary ontogeny to be identified. The prey-specific index of relative importance revealed that the sicklefin smoothhound is a crab predator. Female and male sicklefin smoothhounds consumed a swimming crab species, Achelous iridescens, in similar proportions. Adults and juveniles of both sexes complemented their diets with the Panama mantis shrimp (Squilla panamensis), the dart squid, Lolliguncula (Loliolopsis) diomedeae, and the crab species Euphylax robustus, indicating behavioral and habitat segregation. Ontogenetic changes in diet were identified, with juveniles feeding almost exclusively on A. iridescens and adults having a more varied diet. The diet of sicklefin smoothhounds also changed with size: sharks ≤90 cm in total length (TL) consumed more A. iridescens, and sharks >90 cm TL fed on a wider variety of prey. These results indicate that the sicklefin smoothhound is a selective mesopredator in the coastal marine food chain, having a significant influence on populations of benthic crustaceans in the southeastern Pacific Ocean. |
| doi_str_mv | 10.7755/FB.117.3.11 |
| format | Article |
| fullrecord | <record><control><sourceid>gale_proqu</sourceid><recordid>TN_cdi_proquest_journals_2283118339</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><galeid>A603632223</galeid><sourcerecordid>A603632223</sourcerecordid><originalsourceid>FETCH-LOGICAL-c471t-88b4572f0edd319a4fb643c6146609f27c48df5a7cf23781d579dcf05986c8603</originalsourceid><addsrcrecordid>eNqNkt9qFDEUxoMouFavfIGANxaZNZnMJJnLtnTtQktF63VIM8lO6myy5g_YB_C9PbUWWdgLEzgnnPP7vsDhIPSWkqUQff9xdbqkVCwZxGdoQQcmmq6n8jlaEDKQhvCev0Svcr4jcDgfFujXTYq7yRtsTZzj5h7rMOIYStzYYAvU8-RdwT7gMlk8eltwdH_e2Zvvs3XQydsYyzTFCtL3VzUXO9eM5xrqrEvNx0_qHCskDf0U8GdtvAP_a2N1eI1eOD1n--ZvPkLfVuc3ZxfN5fWn9dnJZWM6QUsj5W3Xi9YRO46MDrpzt7xjhtOOczK4VphOjq7XwriWCUnHXgyjcaQfJDeSE3aE3j367lL8UW0u6i7WFOBL1baSUSoZG_5RGz1b5YOLJWmz9dmoEzDhrG1bBlRzgHoYW9JzDDAZKO_xywM83NFuvTkoON4TAFPsz7LRNWe1_vrl_9mL9T774ZE1KeacrFO75Lc63StK1MMaqdWpgjVSDCL7DUHht2k</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2283118339</pqid></control><display><type>article</type><title>Trophic ecology and ontogenetic shift in the diet of the sicklefin smoothhound (Mustelus lunulatus) in the southeastern Pacific Ocean</title><source>DOAJ Directory of Open Access Journals</source><creator>Mendez-Macias, Jose S ; Velazquez-Chiquito, Vanessa M ; Estupinan-Montano, Colombo ; Galvan-Magana, Felipe</creator><creatorcontrib>Mendez-Macias, Jose S ; Velazquez-Chiquito, Vanessa M ; Estupinan-Montano, Colombo ; Galvan-Magana, Felipe</creatorcontrib><description>The feeding habits of the sicklefin smoothhound (Mustelus lunulatus) were studied on the basis of analysis of stomach contents of 314 specimens, allowing the diet of this species to be determined by sex, size, and stage of sexual maturity and for changes in the dietary ontogeny to be identified. The prey-specific index of relative importance revealed that the sicklefin smoothhound is a crab predator. Female and male sicklefin smoothhounds consumed a swimming crab species, Achelous iridescens, in similar proportions. Adults and juveniles of both sexes complemented their diets with the Panama mantis shrimp (Squilla panamensis), the dart squid, Lolliguncula (Loliolopsis) diomedeae, and the crab species Euphylax robustus, indicating behavioral and habitat segregation. Ontogenetic changes in diet were identified, with juveniles feeding almost exclusively on A. iridescens and adults having a more varied diet. The diet of sicklefin smoothhounds also changed with size: sharks ≤90 cm in total length (TL) consumed more A. iridescens, and sharks >90 cm TL fed on a wider variety of prey. These results indicate that the sicklefin smoothhound is a selective mesopredator in the coastal marine food chain, having a significant influence on populations of benthic crustaceans in the southeastern Pacific Ocean.</description><identifier>ISSN: 0090-0656</identifier><identifier>EISSN: 1937-4518</identifier><identifier>DOI: 10.7755/FB.117.3.11</identifier><language>eng</language><publisher>Washington: National Marine Fisheries Service</publisher><subject>Aquatic crustaceans ; Benthos ; Brackishwater molluscs ; Crustaceans ; Diet ; Environmental aspects ; Feeding ; Food and nutrition ; Food chains ; Genetic aspects ; Identification ; Juveniles ; Marine crustaceans ; Marine fishes ; Marine molluscs ; Mustelus lunulatus ; Oceans ; Ontogeny ; Predators ; Prey ; Segregation ; Sexual maturity ; Sharks ; Shellfish ; Stomach content ; Swimming ; Triakidae</subject><ispartof>Fishery bulletin (Washington, D.C.), 2019-07, Vol.117 (3), p.245-257</ispartof><rights>COPYRIGHT 2019 National Marine Fisheries Service</rights><rights>Copyright Superintendent of Documents 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c471t-88b4572f0edd319a4fb643c6146609f27c48df5a7cf23781d579dcf05986c8603</citedby></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,777,781,861,27905,27906</link.rule.ids></links><search><creatorcontrib>Mendez-Macias, Jose S</creatorcontrib><creatorcontrib>Velazquez-Chiquito, Vanessa M</creatorcontrib><creatorcontrib>Estupinan-Montano, Colombo</creatorcontrib><creatorcontrib>Galvan-Magana, Felipe</creatorcontrib><title>Trophic ecology and ontogenetic shift in the diet of the sicklefin smoothhound (Mustelus lunulatus) in the southeastern Pacific Ocean</title><title>Fishery bulletin (Washington, D.C.)</title><description>The feeding habits of the sicklefin smoothhound (Mustelus lunulatus) were studied on the basis of analysis of stomach contents of 314 specimens, allowing the diet of this species to be determined by sex, size, and stage of sexual maturity and for changes in the dietary ontogeny to be identified. The prey-specific index of relative importance revealed that the sicklefin smoothhound is a crab predator. Female and male sicklefin smoothhounds consumed a swimming crab species, Achelous iridescens, in similar proportions. Adults and juveniles of both sexes complemented their diets with the Panama mantis shrimp (Squilla panamensis), the dart squid, Lolliguncula (Loliolopsis) diomedeae, and the crab species Euphylax robustus, indicating behavioral and habitat segregation. Ontogenetic changes in diet were identified, with juveniles feeding almost exclusively on A. iridescens and adults having a more varied diet. The diet of sicklefin smoothhounds also changed with size: sharks ≤90 cm in total length (TL) consumed more A. iridescens, and sharks >90 cm TL fed on a wider variety of prey. These results indicate that the sicklefin smoothhound is a selective mesopredator in the coastal marine food chain, having a significant influence on populations of benthic crustaceans in the southeastern Pacific Ocean.</description><subject>Aquatic crustaceans</subject><subject>Benthos</subject><subject>Brackishwater molluscs</subject><subject>Crustaceans</subject><subject>Diet</subject><subject>Environmental aspects</subject><subject>Feeding</subject><subject>Food and nutrition</subject><subject>Food chains</subject><subject>Genetic aspects</subject><subject>Identification</subject><subject>Juveniles</subject><subject>Marine crustaceans</subject><subject>Marine fishes</subject><subject>Marine molluscs</subject><subject>Mustelus lunulatus</subject><subject>Oceans</subject><subject>Ontogeny</subject><subject>Predators</subject><subject>Prey</subject><subject>Segregation</subject><subject>Sexual maturity</subject><subject>Sharks</subject><subject>Shellfish</subject><subject>Stomach content</subject><subject>Swimming</subject><subject>Triakidae</subject><issn>0090-0656</issn><issn>1937-4518</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><recordid>eNqNkt9qFDEUxoMouFavfIGANxaZNZnMJJnLtnTtQktF63VIM8lO6myy5g_YB_C9PbUWWdgLEzgnnPP7vsDhIPSWkqUQff9xdbqkVCwZxGdoQQcmmq6n8jlaEDKQhvCev0Svcr4jcDgfFujXTYq7yRtsTZzj5h7rMOIYStzYYAvU8-RdwT7gMlk8eltwdH_e2Zvvs3XQydsYyzTFCtL3VzUXO9eM5xrqrEvNx0_qHCskDf0U8GdtvAP_a2N1eI1eOD1n--ZvPkLfVuc3ZxfN5fWn9dnJZWM6QUsj5W3Xi9YRO46MDrpzt7xjhtOOczK4VphOjq7XwriWCUnHXgyjcaQfJDeSE3aE3j367lL8UW0u6i7WFOBL1baSUSoZG_5RGz1b5YOLJWmz9dmoEzDhrG1bBlRzgHoYW9JzDDAZKO_xywM83NFuvTkoON4TAFPsz7LRNWe1_vrl_9mL9T774ZE1KeacrFO75Lc63StK1MMaqdWpgjVSDCL7DUHht2k</recordid><startdate>20190701</startdate><enddate>20190701</enddate><creator>Mendez-Macias, Jose S</creator><creator>Velazquez-Chiquito, Vanessa M</creator><creator>Estupinan-Montano, Colombo</creator><creator>Galvan-Magana, Felipe</creator><general>National Marine Fisheries Service</general><general>Superintendent of Documents</general><scope>AAYXX</scope><scope>CITATION</scope><scope>IHI</scope><scope>ISR</scope><scope>7TN</scope><scope>F1W</scope></search><sort><creationdate>20190701</creationdate><title>Trophic ecology and ontogenetic shift in the diet of the sicklefin smoothhound (Mustelus lunulatus) in the southeastern Pacific Ocean</title><author>Mendez-Macias, Jose S ; Velazquez-Chiquito, Vanessa M ; Estupinan-Montano, Colombo ; Galvan-Magana, Felipe</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c471t-88b4572f0edd319a4fb643c6146609f27c48df5a7cf23781d579dcf05986c8603</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Aquatic crustaceans</topic><topic>Benthos</topic><topic>Brackishwater molluscs</topic><topic>Crustaceans</topic><topic>Diet</topic><topic>Environmental aspects</topic><topic>Feeding</topic><topic>Food and nutrition</topic><topic>Food chains</topic><topic>Genetic aspects</topic><topic>Identification</topic><topic>Juveniles</topic><topic>Marine crustaceans</topic><topic>Marine fishes</topic><topic>Marine molluscs</topic><topic>Mustelus lunulatus</topic><topic>Oceans</topic><topic>Ontogeny</topic><topic>Predators</topic><topic>Prey</topic><topic>Segregation</topic><topic>Sexual maturity</topic><topic>Sharks</topic><topic>Shellfish</topic><topic>Stomach content</topic><topic>Swimming</topic><topic>Triakidae</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Mendez-Macias, Jose S</creatorcontrib><creatorcontrib>Velazquez-Chiquito, Vanessa M</creatorcontrib><creatorcontrib>Estupinan-Montano, Colombo</creatorcontrib><creatorcontrib>Galvan-Magana, Felipe</creatorcontrib><collection>CrossRef</collection><collection>Gale In Context: U.S. History</collection><collection>Gale In Context: Science</collection><collection>Oceanic Abstracts</collection><collection>ASFA: Aquatic Sciences and Fisheries Abstracts</collection><jtitle>Fishery bulletin (Washington, D.C.)</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Mendez-Macias, Jose S</au><au>Velazquez-Chiquito, Vanessa M</au><au>Estupinan-Montano, Colombo</au><au>Galvan-Magana, Felipe</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Trophic ecology and ontogenetic shift in the diet of the sicklefin smoothhound (Mustelus lunulatus) in the southeastern Pacific Ocean</atitle><jtitle>Fishery bulletin (Washington, D.C.)</jtitle><date>2019-07-01</date><risdate>2019</risdate><volume>117</volume><issue>3</issue><spage>245</spage><epage>257</epage><pages>245-257</pages><issn>0090-0656</issn><eissn>1937-4518</eissn><abstract>The feeding habits of the sicklefin smoothhound (Mustelus lunulatus) were studied on the basis of analysis of stomach contents of 314 specimens, allowing the diet of this species to be determined by sex, size, and stage of sexual maturity and for changes in the dietary ontogeny to be identified. The prey-specific index of relative importance revealed that the sicklefin smoothhound is a crab predator. Female and male sicklefin smoothhounds consumed a swimming crab species, Achelous iridescens, in similar proportions. Adults and juveniles of both sexes complemented their diets with the Panama mantis shrimp (Squilla panamensis), the dart squid, Lolliguncula (Loliolopsis) diomedeae, and the crab species Euphylax robustus, indicating behavioral and habitat segregation. Ontogenetic changes in diet were identified, with juveniles feeding almost exclusively on A. iridescens and adults having a more varied diet. The diet of sicklefin smoothhounds also changed with size: sharks ≤90 cm in total length (TL) consumed more A. iridescens, and sharks >90 cm TL fed on a wider variety of prey. These results indicate that the sicklefin smoothhound is a selective mesopredator in the coastal marine food chain, having a significant influence on populations of benthic crustaceans in the southeastern Pacific Ocean.</abstract><cop>Washington</cop><pub>National Marine Fisheries Service</pub><doi>10.7755/FB.117.3.11</doi><tpages>13</tpages><oa>free_for_read</oa></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0090-0656 |
| ispartof | Fishery bulletin (Washington, D.C.), 2019-07, Vol.117 (3), p.245-257 |
| issn | 0090-0656 1937-4518 |
| language | eng |
| recordid | cdi_proquest_journals_2283118339 |
| source | DOAJ Directory of Open Access Journals |
| subjects | Aquatic crustaceans Benthos Brackishwater molluscs Crustaceans Diet Environmental aspects Feeding Food and nutrition Food chains Genetic aspects Identification Juveniles Marine crustaceans Marine fishes Marine molluscs Mustelus lunulatus Oceans Ontogeny Predators Prey Segregation Sexual maturity Sharks Shellfish Stomach content Swimming Triakidae |
| title | Trophic ecology and ontogenetic shift in the diet of the sicklefin smoothhound (Mustelus lunulatus) in the southeastern Pacific Ocean |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-20T03%3A24%3A03IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-gale_proqu&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=Trophic%20ecology%20and%20ontogenetic%20shift%20in%20the%20diet%20of%20the%20sicklefin%20smoothhound%20(Mustelus%20lunulatus)%20in%20the%20southeastern%20Pacific%20Ocean&rft.jtitle=Fishery%20bulletin%20(Washington,%20D.C.)&rft.au=Mendez-Macias,%20Jose%20S&rft.date=2019-07-01&rft.volume=117&rft.issue=3&rft.spage=245&rft.epage=257&rft.pages=245-257&rft.issn=0090-0656&rft.eissn=1937-4518&rft_id=info:doi/10.7755/FB.117.3.11&rft_dat=%3Cgale_proqu%3EA603632223%3C/gale_proqu%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2283118339&rft_id=info:pmid/&rft_galeid=A603632223&rfr_iscdi=true |