{"refrec":{"BRefID":35312,"RR":"<b>Rosa, R.; Nunes, M.L.</b> (2003). Biochemical composition of deep-sea decapod crustaceans with two different benthic life strategies off the Portuguese south coast. <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 50</i>: 119-130","BEntID":35312,"PublicFlag":1,"CheckedFlag":0,"wosflag":1,"vabbflag":1,"RefStringPartII":". <i>Deep-Sea Res., Part 1, Oceanogr. Res. Pap. 50</i>: 119-130","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Rosa, R.; Nunes, M.L.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Rosa, R.; Nunes, M.L.","Englishabstract":"The objectives of the present study were to characterize the benthic life strategies of <i>Aristeus antennatus</i> (Crustacea: Penaeidea), <i>Parapenaeus longirostris</i> (Crustacea: Penaeidea) and <i>Nephrops norvegicus</i> (Crustacea: Astacidea) on the basis of biochemical composition (proximate chemical composition, total lipids, glycogen and cholesterol contents), and its response to biological and environmental factors (sex, maturation, reproduction, food availability and depth) into account. The specimens were collected at depths between 200 and 600 m off the Portuguese south coast (Algarve). The nektobenthic species (<i>A. antennatus</i> and <i>P. longirostris</i>) showed higher protein, lipid, cholesterol and glycogen contents, and lower moisture content in the muscle than the benthic-endobenthic species (<i>N. norvegicus</i>.  Consequently, the energy content of the nektobenthic species was also higher. Principal component analyses were used to assess the relationship between the different biochemical contents and to relate them to the biotic and abiotic factors. Depth seems to have the most important role in the observed trends of the biochemical composition. The increase of the ovarian lipid levels occurs as a result of the maturation process. The highest values were obtained in mature <i>N. norvegicus</i> females. The differences can be due to maternal investment (lipid metabolism of the female is geared to the provision of egg lipid), since <i>N. norvegicus</i> produce large lecithotrophic eggs. The biochemical differences observed in the three species did not seem to be due to distinct trophic strategies, but instead were a consequence of depth, which may have a significant interspecific effect on food intake. It was also evident that reproductive cycle has profound effects upon the biochemistry of the three species. Gonadal maturation has large associated energy costs due to the increase in biosynthetic work. Moreover, the biochemical composition would be influenced by or synchronized with seasonal feeding activity or food availability.","AbstractOtherLang":null,"BibLvlCode":"AS","StandardTitle":"Biochemical composition of deep-sea decapod crustaceans with two different benthic life strategies off the Portuguese south coast","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":2003,"MonPub":null,"DateUpdate":"2003-06-03","DateCreate":"2003-06-03","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":"WOS:000188457900006","VABBcode":null,"OpenAcc":1},"refs":null,"anarec":{"AnaID":35312,"PubliDate":2003,"Pagination":"119-130","XtraPublOfAnaID":null,"ISBN":null,"Volume":"50","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":45506,"SerRR":"Deep-Sea Research, Part I. Oceanographic Research Papers. Elsevier: Oxford.  ISSN 0967-0637; e-ISSN 1879-0119","StandardTitleSer":"Deep-Sea Research, Part I. Oceanographic Research Papers","ISSN":"0967-0637","AbbrevSer":"Deep-Sea Res., Part 1, Oceanogr. Res. 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