<documentid="80E3A1BF26BA22FC4F09703D137111EA"ID-CLB-Dataset="298448"ID-DOI="10.56042/ijms.v51i07.48858"ID-GBIF-Dataset="b2b96fd8-f174-43b6-a7c8-f478423ca41a"ID-ISSN="2582-6727"ID-Zenodo-Dep="11622087"IM.bibliography_approvedBy="valdenar"IM.illustrations_approvedBy="valdenar"IM.materialsCitations_approvedBy="felipe"IM.metadata_approvedBy="felipe"IM.tables_requiresApprovalFor="operationResults"IM.taxonomicNames_approvedBy="felipe"IM.treatments_approvedBy="valdenar"checkinTime="1718209579906"checkinUser="felipe"docAuthor="Rajkumar, M, Midun, M, Thirumalaiselvan, S, Rajkumar, R & Saravanan, R"docDate="2022"docId="039D87DCFFB66857CE0BFC8CFD557BF9"docLanguage="en"docName="IndianJGeoMarScie.51.07.650-653.pdf"docOrigin="Indian Journal of Geo Marine Sciences 51 (7)"docStyle="DocumentStyle:7219E6AB952790EDDABA71E2B40E19C1.1:IndianJGeoMarScie.2022-.journal_article"docStyleId="7219E6AB952790EDDABA71E2B40E19C1"docStyleName="IndianJGeoMarScie.2022-.journal_article"docStyleVersion="1"docTitle="Thysanoteuthis rhombus Troschel 1857"docType="treatment"docVersion="4"lastPageNumber="652"masterDocId="FFA4FFA4FFB66855CD7BFFA2FFA07F52"masterDocTitle="A unique occurrence of large-sized diamondback squid Thysanoteuthis rhombus (Troschel, 1857) in the Gulf of Mannar"masterLastPageNumber="653"masterPageNumber="650"pageNumber="650"updateTime="1718292324437"updateUser="ExternalLinkService"zenodo-license-document="CC-BY-NC-ND-4.0">
<mods:titleid="987A8A75BD53E2CA588C636E5B941AEF">A unique occurrence of large-sized diamondback squid Thysanoteuthis rhombus (Troschel, 1857) in the Gulf of Mannar</mods:title>
<figureCitationid="130F2A4FFFB66855C9BBFBB7FAAC7B7D"box="[1216,1292,1045,1071]"captionStart="Fig"captionStartId="1.[293,328,1931,1953]"captionTargetBox="[286,1397,1249,1910]"captionTargetId="figure-49@1.[286,1397,1249,1910]"captionTargetPageId="1"captionText="Fig. 2 ― Diamondback squid Thysanoteuthis rhombus caught in hook and line operated in the Gulf of Mannar"figureDoi="http://doi.org/10.5281/zenodo.11622093"httpUri="https://zenodo.org/record/11622093/files/figure.png"pageId="0"pageNumber="650">Fig. 2</figureCitation>
), was auctioned off at the landing centre for Rs. 2350/-.
<paragraphid="8B8B36CAFFB66855CE0BFBF9FAA879C3"blockId="0.[848,1489,865,1951]"pageId="0"pageNumber="650">This bright red squid had a cylindrical muscular mantle that gradually tapered to a blunt end posteriorly. The fins were long and extended all the way down the sides of the mantle. The fin was typically rhomboid in shape, with a broad middle and tapering towards the anterior and posterior ends. The head was narrower and the eyes were prominently placed. Cirrate trabeculate covered the long oral arms with protective membranes. The outer lateral arms were longer than the inner dorsal arms and had a crest-like muscular projection at each arm's base. Such structures were absent from the other intermediary arms. Each arm had two rows of suckers with 20-26 sharp teeth on the sucker rings. The tentacles were weak, and the clubs were slightly bulged in the middle, with four rows of suckers and sucker rings with 15 – 20 sharp teeth.</paragraph>
<tableCitationid="C6B60371FFB66855CE0BF93AFC7B79E0"box="[880,987,1688,1714]"captionStart="Table 1"captionStartId="2.[186,241,1231,1253]"captionTargetBox="[160,752,1302,1703]"captionText="Table 1 ― Morphometric measurements of the diamondback squid Thysanoteuthis rhombus caught in the Gulf of Mannar"httpUri="http://table.plazi.org/id/DF4B6642FFB46857CDC1FB6DFCA27A52"pageId="0"pageNumber="650"tableUuid="DF4B6642FFB46857CDC1FB6DFCA27A52">Table 1</tableCitation>
<bibRefCitationid="EFA54B3BFFB66855C980F974FAAE79B5"author="Roper C F E"box="[1275,1294,1750,1767]"pageId="0"pageNumber="650"pagination="187 - 188"refId="ref1879"refString="11 Roper C F E, Family Thysanoteuthidae Keferstein, 1866, FAO Species Catalogue, Vol. 3, Cephalopods of the World, (1984) 187 - 188."type="book chapter"year="1984">
<bibRefCitationid="EFA54B3BFFB66855CEEFF899FC08781E"author="Nishimura S"box="[916,936,1851,1868]"pageId="0"pageNumber="650"pagination="327 - 349"refId="ref1911"refString="12 Nishimura S, Notes on the occurrences and biology of the oceanic squid Thysanoteuthis rhombus Troschel in Japan, Publications of the Seto Marine Biological Laboratory, 14 (1966) 327 - 349."type="journal article"year="1966">12</bibRefCitation>
,
<bibRefCitationid="EFA54B3BFFB66855CED7F899FC1F781E"author="Bower J R & Miyahara K"box="[940,959,1851,1868]"pageId="0"pageNumber="650"refId="ref1947"refString="13 Bower J R & Miyahara K, The diamond squid (Thysanoteuthis rhombus): a review of the fishery and recent research in Japan, Fish Res, 73 (1 - 2) (2005) 1 - 11. DOI: 10.1016 % 2 Fj. fishres. 2005.01.020"type="book"year="2005">13</bibRefCitation>
</superScript>
. Diamondback squid biomass in the global oceans is estimated to be 1.5 – 2.5 million tonnes
<bibRefCitationid="EFA54B3BFFB66855C8CDF8FFFA69783C"author="Miyahara K & Ota T & Hatayama J & Mitsunaga Y & Goto T"box="[1462,1481,1885,1902]"pageId="0"pageNumber="650"pagination="30 - 36"refId="ref2000"refString="14 Miyahara K, Ota T, Hatayama J, Mitsunaga Y, Goto T, et al., Tagging studies on the diamond squid (Thysanoteuthis rhombus) in the western Sea of Japan, Bull Jpn Soc Fish Oceanogr, 72 (1) (2008) 30 - 36."type="journal article"year="2008">
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,
<bibRefCitationid="EFA54B3BFFB46857CD80FE99FEAF7E1E"author="Nigmatullin C M & Arkhipkin A I"box="[251,271,315,332]"pageId="2"pageNumber="652"pagination="155 - 181"refId="ref2110"refString="16 Nigmatullin C M & Arkhipkin A I, A review of the biology of the diamondback squid, Thysanoteuthis rhombus (Oegopsida: Thysanoteuthidae), In: Contributed Papers to International Symposium on Large Pelagic Squids, July 18 - 19, 1996, for JAMARC's 25 th Anniversary of Its Foundation, 1998, pp. 155 - 181."type="book chapter"year="1998">16</bibRefCitation>
<tableCitationid="C6B60371FFB46857CC82FE13FDF67E99"box="[505,598,433,459]"captionStart="Table 2"captionStartId="2.[490,545,1754,1776]"captionTargetBox="[160,1408,1797,1980]"captionText="Table 2 ― Reports of Thysanoteuthis rhombus along the Indian coast"httpUri="http://table.plazi.org/id/DF4B6642FFB46857CC91F978FB2679BD"pageId="2"pageNumber="652"tableUuid="DF4B6642FFB46857CC91F978FB2679BD">Table 2</tableCitation>
<paragraphid="8B8B36CAFFB76854CCABFB0BFB007BED"blockId="1.[464,1184,1193,1215]"box="[464,1184,1193,1215]"pageId="1"pageNumber="651">Fig. 1 ― Location of Pamban fish landing centre, Southeast coast of India</paragraph>
found this species in the Indian Ocean at nine different locations, none of which are along the Indian coast. Barnard
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noted in their cephalopod catalogue that an adult specimen of this species was stranded at the Cape of Good Hope. Landings of the same species have also been reported in Veerapandiyanpattinam (Gulf of Mannar) from a drift gill net
<bibRefCitationid="EFA54B3BFFB46857CFD5FD77FD177DB4"author="Kasim M & Marichamy R & Rajapackiam S & Balasubramanian T S"box="[686,695,725,742]"pageId="2"pageNumber="652"pagination="182 - 184"refId="ref1583"refString="4 Kasim M, Marichamy R, Rajapackiam S & Balasubramanian T S, Rare squid, Thysanoteuthis rhombus Troschel from the Gulf of Mannar, India, J Mar Biol Assoc India, 39 (1 - 2) (1998) 182 - 184."type="journal article"year="1998">
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