{"refrec":{"BRefID":383574,"RR":"<b>Bahtiar, B.; Kasim, M.; Hati, Y.I.P.; Ishak, E.</b> (2024). Population dynamics of mud clam <i>Geloina expansa</i> (Mousson, 1849) in degraded mangrove area at Kendari Bay, Indonesia. <i>Biodiversitas 25(2)</i>: 616-623. <a href=\"https://dx.doi.org/10.13057/biodiv/d250220\" target=\"_blank\">https://dx.doi.org/10.13057/biodiv/d250220</a>","BEntID":381320,"PublicFlag":1,"CheckedFlag":0,"wosflag":0,"vabbflag":0,"RefStringPartII":". <i>Biodiversitas 25(2)</i>: 616-623. <a href=\"https://dx.doi.org/10.13057/biodiv/d250220\" target=\"_blank\">https://dx.doi.org/10.13057/biodiv/d250220</a>","DocTypID":8,"DocType":"Journal article","MarineFlag":0,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Bahtiar, B.; Kasim, M.; Hati, Y.I.P.; Ishak, E.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Bahtiar, B. <i>et al.</i>","Englishabstract":"<span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\">Mud clams, </span><i>Geloina expansa </i><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\">(Mousson, 1849), locally known as </span><i>kalandue</i><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\">, are bivalves living in mangrove forests. These mud clams are currently experiencing ecological pressure, and are susceptible to the degradation of mangrove areas and the exploitation of the clams. This research was conducted in the mangrove forests of Kendari Bay for a year, from November 2016 to October 2017. </span><i>Geloina expansa</i><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\"> samples were collected throughout the mangrove forest area, and the water temperature was measured simultaneously with </span><i>G. expansa</i><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\"> sampling. The width of </span><i>G. expansa</i><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\"> shell was measured using a caliper. Population structure, growth, mortality, and exploitation rate data were analyzed using the Bhattacharya method, the von Bertalanffy inverse function, the width converted catch curve, and Pauly's empirical formula, all accommodated in the FiSAT II program version 3.0. The results showed that the </span><i>G. expansa</i><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\"> population was spread out from two and three-size groups, i.e., juvenile, adult, and old-size groups, dominated by the older group. </span><i>Geloina expansa</i><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\"> growth model follows the L</span><sub>t</sub><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\"> = 10.08-(10.08-0.025) e-</span><sup>0.6t,</sup><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\"> which generally consists of 1.5-2.5 years of maturity. The total mortality (Z) of </span><i>G. expansa</i><span style=\"background-color:rgb(247,247,247);color:rgb(3,103,53);\"> was 2.26, in which the highest contributing factor was natural mortality (M) as opposed to fishing mortality (F), with values of M = 1.72 and F = 0.56. Thus, the exploitation rate (E) was within the low category, with a value of 0.24.</span>","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Population dynamics of mud clam <i>Geloina expansa</i> (Mousson, 1849) in degraded mangrove area at Kendari Bay, Indonesia","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":2024,"MonPub":null,"DateUpdate":"2024-03-04","DateCreate":"2024-03-04","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":1,"DOI":"10.13057/biodiv/d250220"},"refs":null,"anarec":{"AnaID":383574,"PubliDate":2024,"Pagination":"616-623","XtraPublOfAnaID":null,"ISBN":null,"Volume":"25","Issue":"2","BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":264471,"SerRR":"Biodiversitas: Sukarta.  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