Journal of Limnology and Freshwater Fisheries Research最新文献_第9页

Ontogenetic Diet Shift of Invasive Gibel Carp (Carassius gibelio, Bloch 1782) in Karamenderes River (Turkey) 土耳其Karamenderes河入侵异育银鲫(Carassius gibelio, Bloch 1782)的食性变化

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2019-04-25 DOI: 10.17216/limnofish.461758

N. Partal, Ş. Y. Özdilek

{"title":"Ontogenetic Diet Shift of Invasive Gibel Carp (Carassius gibelio, Bloch 1782) in Karamenderes River (Turkey)","authors":"N. Partal, Ş. Y. Özdilek","doi":"10.17216/limnofish.461758","DOIUrl":"https://doi.org/10.17216/limnofish.461758","url":null,"abstract":"Bu calismada Karamenderes Cayi’nda bulunan istilaci Carassius gibelio (Bloch, 1782) turunun beslenmesindeki ontogenetik degisimin belirlenmesi amaclanmistir. Arazi calismalari Yaz 2012, Sonbahar 2012 ve Ilkbahar 2013 mevsimlerinde gerceklestirilmistir. Baliklarin yakalanmasinda elektrosoker ile cesitli aglar kullanilmistir. Beslenmedeki ontogenetik degisimi belirlemek icin, baliklar catal boylarina gore dokuz gruba ayrilmistir. Baliklarin sindirim kanali icerikleri besin bulunma sikligi, sayisal bolluk ve hacimsel oran kullanilarak nisbi onem indeksi ile hesaplanmistir. C. gibelio bireylerinin mevsimlere gore bol olan boy gruplari sirasiyla Yaz 2012 (18-20 cm), Sonbahar 2012 (6-8 cm) ve Ilkbahar 2013 (27-29 cm) seklindedir. Beslenme siddeti Yaz 2012’de 15-17 cm, Sonbahar 2012’de 3-5 cm ve Ilkbahar 2013’de 24-26 cm boy gruplarinda en az oldugu belirlenmistir. C. gibelio bireylerinin ontogenetik beslenme aliskanliginda zamansal ve mekânsal olarak farkliliklar gozlenmistir. Buyuk bireyler yaz mevsiminde daha cok hayvansal besin ve sonbahar mevsiminde alglerle beslendigi ve kucuk bireylerle buyuk bireylerin besinleri arasinda yaz mevsimi haricinde onemli bir cakisma olmadigi belirlendi. Kucuk ve buyuk bireylerin besinleri arasinda herhangi bir cakismanin olmamasi, gumusi havuz baliginin Karamenderes’de yerlesme basarisi icin bir avantaji olabilir.","PeriodicalId":31031,"journal":{"name":"Journal of Limnology and Freshwater Fisheries Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42709118","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Thermal Tolerance of Turkish Crayfish (Astacus leptodactylus) Acclimated to Three Different Temperatures 三种不同温度下土耳其小龙虾的耐热性

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2019-04-25 DOI: 10.17216/LIMNOFISH.422903

Abdullatif Ölçülü, M. Kumlu, H. Yılmaz, O. Eroldoğan

引用次数: 1

Assessment of Fish Exports from Blantyre District, Southern Malawi 马拉维南部布兰太尔区鱼类出口评估

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2019-04-25 DOI: 10.17216/LIMNOFISH.397020

Langson Samala, F. Kapute

{"title":"Assessment of Fish Exports from Blantyre District, Southern Malawi","authors":"Langson Samala, F. Kapute","doi":"10.17216/LIMNOFISH.397020","DOIUrl":"https://doi.org/10.17216/LIMNOFISH.397020","url":null,"abstract":"This study presents findings on fish exports from Blantyre, which is the biggest commercial city in Malawi. A cross-sectional research design was used in the study in which fish quantities, species, processing methods, gender of fish exporters and export destinations were analysed. Non-probability data collection methods were used on the secondary data that was collected from Blantyre District Fisheries Office. Findings indicate that a total of 9596 kg (9.6 metric tonnes) of fish was exported within a period of six months in the year 2013 comprising all species available in the local markets and those endemic in Malawi’s water bodies. Most fish were exported as sun-dried, para-boiled and smoked. Findings suggest that fish exports from Malawi are in their infancy, fluctuate, and are insignificant for making a positive and sustainable impact to the economy of the country. It is recommended that national and regional policies should be fully utilized to curb exports of fish in order to sustainably satisfy the local huge demand for fish. About 82.6% of the fish exporters were women underpinning the need for policy considerations that value their critical role in the fish export trade such as women empowerment .","PeriodicalId":31031,"journal":{"name":"Journal of Limnology and Freshwater Fisheries Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42644810","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zooplankton Fauna of Abant Lake: Past and Present 阿班特湖浮游动物区系:过去与现在

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2019-04-25 DOI: 10.17216/LIMNOFISH.448525

Pınar Gürbüzer, Ezgi Tüzün Tereshenko, A. Altındağ, S. Akiska

引用次数: 2

Fossil and Recent Distribution and Ecology of Ancient Asexual Ostracod Darwinula stevensoni (Ostracoda, Crustacea) in Turkey 土耳其古代无性介形虫Darwinula stevenson(介形虫纲，甲壳纲)的化石、近代分布和生态学

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2019-04-25 DOI: 10.17216/LIMNOFISH.455722

M. Yavuzatmaca, O. Külköylüoğlu

{"title":"Fossil and Recent Distribution and Ecology of Ancient Asexual Ostracod Darwinula stevensoni (Ostracoda, Crustacea) in Turkey","authors":"M. Yavuzatmaca, O. Külköylüoğlu","doi":"10.17216/LIMNOFISH.455722","DOIUrl":"https://doi.org/10.17216/LIMNOFISH.455722","url":null,"abstract":"Darwinula stevensoni ’nin dagilimini, habitat ve ekolojik tercihlerini belirlemek icin 2000 ve 2017 yillari arasinda Turkiye’den toplanan 102 ornekten elde edilen veriler degerlendirilmistir. Toplam 1786 D. stevensoni bireyi Turkiye’nin yedi cografi bolgesinin altisinda bulunan 14 ildeki sekiz farkli sucul habitattan rapor edildi. Ic Anadolu bolgesin de bol miktarda ornek olmasina ragmen, turun guncel formuna rastlanilmadi. Guncel formdan farkli olarak, turun fosil formu ile Guneydogu Anadolu disindaki tum cografi bolgelerde karsilasilmistir. Turkiye’deki en eski fosil kayit Miosen doneminden (yaklasik 23 milyon sene once) rapor edilmistir. Turkiye’deki tum mevsimlerde tur bulunmustur. D. stevensoni farkli ekolojik degiskenlere yuksek optimum ve tolerans seviyeleri gostermektedir. Tur pH ile pozitif (P<0,05) fakat yukseklik ile negatif (P<0,01) anlamli korelasyon gostermektedir. Gorulmektedir ki turun ekolojik tercihleri daha once bilinenden daha genistir. Sonuclar, D. stevensoni ’nin guncel ve gecmis cevre kosullarini tahmin etmek icin kullanilmasi halin de ekolojisine ve dagilimina dikkat edilmesi gerektigini gostermektedir.","PeriodicalId":31031,"journal":{"name":"Journal of Limnology and Freshwater Fisheries Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43333055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 2

First Confirmed Record for the Lepomis gibbosus (L., 1758) in The Lower Sakarya River Basin (Turkey) 土耳其萨卡里亚河下游地区首次确认的Lepomis gibbosus (L.， 1758)记录

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2018-12-27 DOI: 10.17216/LIMNOFISH.404510

İsmail Reis, Hasan Cerim, C. Ateş

引用次数: 3

Growth Performance, Body Composition, Haematological and Serum Parameters to Fish Meal Replacement by Soybean Meal and Cottonseed Meal in Russian Sturgeon (Acipenser gueldenstaedtii) 豆粕和棉籽粕替代鱼粉对俄罗斯鲟鱼生长性能、体成分、血液学和血清指标的影响

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2018-12-27 DOI: 10.17216/LIMNOFISH.460773

N. Emre, Derya Güroy, F. B. Yalım, Y. Emre, Betül Güroy, Serhan Mantoğlu, Onur Karadal

{"title":"Growth Performance, Body Composition, Haematological and Serum Parameters to Fish Meal Replacement by Soybean Meal and Cottonseed Meal in Russian Sturgeon (Acipenser gueldenstaedtii)","authors":"N. Emre, Derya Güroy, F. B. Yalım, Y. Emre, Betül Güroy, Serhan Mantoğlu, Onur Karadal","doi":"10.17216/LIMNOFISH.460773","DOIUrl":"https://doi.org/10.17216/LIMNOFISH.460773","url":null,"abstract":"Bu calismada, balik unu yerine soya fasulyesi unu ve keten tohumu kuspesi kullaniminin Rus mersin baliginda ( Acipenser gueldenstaedtii ) buyume, vucut kompozisyonu, kan ve serum parametreleri uzerine etkileri incelenmistir. Izonitrojenik (% 49 protein) ve izolipidik (% 20 yag) olmak uzere bes deneysel yem formule edilmistir. Yemler, kademeli seviyelerde (% 20 ve % 40) soya unu ( SU ) ve keten tohumu kuspesi ( KU ) ilavesiyle SU 20, SU 40, KU 20, KU 40 ve bir de kontrol yemi ( SU ve KU ilavesi olmadan sadece balik unuyla ( BU )) olarak hazirlanmistir. Deneme baslangicinda, tank basina ortalama 50,00 ± 0,06 g agirliktaki 25 balik, 500 L’lik 15 adet kare tanka rastgele dagitilmistir. Baliklar iki haftada bir, 1 gun beslemeye ara vermek suretiyle toplu olarak tartilmistir. Baliklar 8 hafta boyunca 08:00, 12:00 ve 16:00 saatlerinde doyana kadar beslenmistir. KU 20 ve KU 40 ile beslenen mersin baliklari BU ve SU 40 ile beslenenlere gore daha yuksek spesifik buyume orani ( SBO ) ve daha dusuk yem donusum orani ( YDO ) gostermistir (P<0,05). Baliklarin kan hucrelerinden lenfosit, monosit ve granulositler gruplar arasinda bir farklilik yoktur. SU 20 ve SU 40 gruplarinin Alkalin fosfat ( ALF ) BU grubundan onemli derecede dusuktur (P<0,05) Bu calismanin sonuclari, yavru mersin baligi icin yemsel keten tohumu kuspesinin kullanilabilecegini gostermistir.","PeriodicalId":31031,"journal":{"name":"Journal of Limnology and Freshwater Fisheries Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43115055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 5

Demirköprü Dam Lake (Manisa, Turkey) Fisheries: Fishing Gears and Commercial Species Demirköprü大坝湖(马尼萨，土耳其)渔业:渔具和商业物种

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2018-12-27 DOI: 10.17216/limnofish.439029

H. Dereli̇, T. Kebapçıoğlu, Y. Şen, Zeki Serkan Ölçek, M. Özdemir

{"title":"Demirköprü Dam Lake (Manisa, Turkey) Fisheries: Fishing Gears and Commercial Species","authors":"H. Dereli̇, T. Kebapçıoğlu, Y. Şen, Zeki Serkan Ölçek, M. Özdemir","doi":"10.17216/limnofish.439029","DOIUrl":"https://doi.org/10.17216/limnofish.439029","url":null,"abstract":"Demirkopru Baraj Golu balikcilik faaliyetlerinin mevcut durumunu ortaya koymak amaciyla av araclarinin yapisal ozellikleri, kullanim sekli ve zamanlari ile hedefledikleri turler belirlenmistir. Saha calismalari, Haziran 2015 - Aralik 2016 tarihleri arasinda aylik olarak gerceklestirilmistir. Golde S.S. Koprubasi Su Urunleri Kooperatifi’ne uye 75 ticari balikci, 47 ruhsatli tekne ile avcilik faaliyetlerini surdurmektedir. Ticari balikcilik uzatma aglari, pinterler ve paragatlar ile gerceklestirilmektedir ve hedef turler; yayin, sazan, gumusi havuz baligi ve tatlisu kolyozudur. Calismada ticari avcilar tarafindan kullanilmakta olan farkli teknik ozellikte 17 uzatma agi, 6 pinter takimi ve 2 paragat takiminin teknik planlari FAO standartlarina gore tanimlanmistir. Goldeki av miktarlarindaki degisimlerin degerlendirilmesi icin 2008 - 2016 yillari arasindaki resmi uretim rakamlari incelenmistir. Yillik ortalamada en cok avlanan tur gumusi havuz baligidir ve onu sirasiyla sazan, sudak ve yayin baligi izlemektedir. 2008 yilinda av kompozisyonu icerisinde baskin olan sudak turunun son iki yilda av vermedigi belirlenmistir. Bu calisma ile Demirkopru Baraj Golu’nde kullanilan av araclarinin ozellikleri detayli bir sekilde ilk kez tanimlanmistir.","PeriodicalId":31031,"journal":{"name":"Journal of Limnology and Freshwater Fisheries Research","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67545233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Dişi Gökkuşağı Alabalıklarında Farklı Yemleme Oranlarının Performans ve Üretim Maliyetlerine Etkisi 阿拉巴马州“九天”地区不同食物品种对性能和生产信息的影响

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2018-12-27 DOI: 10.17216/limnofish.420373

Hakan Aykan, S. Sarıözkan

{"title":"Dişi Gökkuşağı Alabalıklarında Farklı Yemleme Oranlarının Performans ve Üretim Maliyetlerine Etkisi","authors":"Hakan Aykan, S. Sarıözkan","doi":"10.17216/limnofish.420373","DOIUrl":"https://doi.org/10.17216/limnofish.420373","url":null,"abstract":"Bu calismanin amaci disi gokkusagi alabaliklarinda farkli yemleme oranlarinin buyume performansi ve uretim maliyetlerine etkisinin arastirilmasidir. Calismada agirliklari 46,8-49,2 g araligindaki toplam 900 adet disi gokkusagi alabaligi ( Oncorhynchus mykiss Walbaum, 1792), 8,0x2,0x0,8 m ebatlarinda ve calisma boyunca icerisinde 8000 litre su bulunan 9 adet beton havuza aktarilmistir. Arastirma her havuzda 100 balik olacak sekilde, 3 tekrarli olarak 70 gun sureyle yurutulmustur. Baslangicta ve 14'er gun arayla yapilan tartimlar sonucunda alabaliklara vucut agirliklarinin %2 (I. grup), %2,5 (II. grup) ve %3 (III. grup) oranlarinda yemleme yapilmistir. Baliklarin deneme sonu ortalama canli agirlik degerleri sirasiyla 201,81±1,36, 252,02±2,35 ve 291,18±3,15 g olarak (P 0,05) olarak belirlenmistir. Yapilan ekonomik analizde, balik basina elde edilen kar miktarlari sirasiyla 0,42, 0,62 ve 0,66 TL; fayda/maliyet oranlari 1,32, 1,38 ve 1,34 olarak hesaplanmistir. Sonuc olarak, en dusuk uretim maliyeti, en yuksek performans degerleri ve karlilik %3 yemleme yapilan 3. grupta; en yuksek uretim maliyeti, en dusuk performans degerleri ve karlilik ise %2 yemleme yapilan 1. grupta elde edilmistir.","PeriodicalId":31031,"journal":{"name":"Journal of Limnology and Freshwater Fisheries Research","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42261117","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zooplankton Fauna of Some Temporary Volcanic Lakes in Gaziantep 加济安泰普一些临时火山湖浮游动物区系

Journal of Limnology and Freshwater Fisheries Research Pub Date : 2018-08-17 DOI: 10.17216/LIMNOFISH.354205

A. Bozkurt, M. A. Genç

引用次数: 1