<abstract xmlns="http://www.w3.org/1999/xhtml">The age, growth and reproduction are described for 411 individuals of abu mullet from the Orontes River in Turkey between May 2011 and April 2012. The overall male to female ratio was 1:1.29. Fork length of all individuals ranged from 2.2 to 18.5 cm and total weight from 1.85 to 66.40 g. Isometric growth was observed for males (b=2.938) and all individuals (b=2.907); positive allometric growth was observed for females (b=3.246). The von Bertalanffy growth parameters based on data from otoliths were L∞ = 19.48 cm, k=0.258 year−1 and t0=−1.738 years for males, L∞ = 20.31 cm, k=0.313 year−1 and t0=−1.432 years for females. The growth performance index (Φ) was found to be 1.99 for males, 2.11 for females and 2.18 for all individuals. The mean condition factor (K) was calculated as 0.792±0.027 for males and 0.835±0.030 for females. Length at maturity was 11.49 cm for males and 11.82 cm for females. The fecundity was 14413±1569 with an egg diameter of 0.44±0.07 mm. Spawning period was between April and August. Abu mullet has acclimated well in the Orontes River and is capable of successful reproduction. Its calculated age and size at maturity was smaller and younger than for other populations.</abstract>

Some aspects of the biology of Abu mullet <italic>Liza abu</italic> (Heckel, 1843) in the Orontes River, Turkey

<abstract xmlns="http://www.w3.org/1999/xhtml">The study assessed the adoption of improved aquaculture technologies among fish farmers in Lagos State, Nigeria. A total of 90 fish farmers were sampled through the multistage sampling technique. A validated and pretested interview schedule was used to obtain primary information from the fish farmers. Obtained data were analyzed using descriptive and inferential statistics. Results obtained revealed that more than half and about one-third of the fish farmers sourced credit facilities from cooperative societies and Esusu, respectively, while almost all sold their fishes as smoked fish. Higher proportions of the fish farmers were aware, tried and adopted most of the improved aquaculture technologies with some of the fish farmers also discontinuing most of the previously adopted technologies. The findings of the study also reported that the fish farmers had positive attitude towards the adoption of improved aquaculture technologies. Results of regression analysis revealed that secondary occupation of the fish farmers (β=−0.324, p&lt;0.01), annual income level (β=−0.471, p&lt;0.05), cost of pond construction (β=0.477, p&lt;0.05) and total profit realized (β=−0.466, p&lt;0.05) were significant predictors of the adoption of improved technologies by the fish farmers with an R2 implying that 46.0% of the variability in the fish farmers’ adoption of improved aquaculture technologies is explained by the socio-economic and production characteristics of the fish farmers. The study concluded that the adoption of improved aquaculture technologies is dynamic and highly influenced by the socio-economic characteristics of the fish farmers which also change with time. It is therefore recommended that technologies that received low level of adoption or which discontinued after earlier adoption should be worked on so that the adoption of those technologies would translate to increased income level of fish farmers, reduced cost of pond construction and increased profit of the fish farmers.</abstract>

Agricultural Media Resources and Extension Center, Federal University of Agriculture, Abeokuta

Department of Aquaculture and Fisheries Management, Federal University of Agriculture, Abeokuta

Department of Agricultural Extension and Rural Development, Federal University of Agriculture, Abeokuta

Dynamics of the adoption of improved aquaculture technologies among fish farmers in Lagos State, Nigeria

<abstract xmlns="http://www.w3.org/1999/xhtml">Common carp <italic>Cyprinus carpio</italic> was introduced from Thailand to Pakistan in 1964 for the purpose of aquaculture. Due to its high tolerance to temperature and turbidity, and prolific pond breeding habit, it was established promptly in most of natural inland waters, including rivers, lakes, streams, canals, wetlands and even village ponds of the country. Although common carp became one of the most abundant cyprinid species in inland waters and important food fish in Pakistan, its impact is not well documented. Fish farming of common carp has been carried out in Pakistan since 1970; initially it grew slowly but now it is playing an important role in the economy of the country by employing more than 400,000 people. Nowadays, farming of freshwater carps is present throughout Pakistan, especially in the provinces of Punjab and Sindh. There is a huge potential in common carp farming and it could help increase the livelihood of people and gross domestic product (GDP) of the country as well. Still, there is a need to improve the fish farming practice to meet the world-class demands that could only be possible by the keen interest of policy makers and stake holders with better management.</abstract>

Department of Zoology, University of the Punjab, Lahore, Pakistan

University of Zagreb, Faculty of Agriculture, Department of Fisheries, Game Management, Beekeeping and Special Zoology, Croatia

A review of introduction of common carp <italic>Cyprinus carpio</italic> in Pakistan: origin, purpose, impact and management

<abstract xmlns="http://www.w3.org/1999/xhtml">TThe length-weight relationships (LWRs) were determined for five freshwater fish species collected from Liangzi Lake, the Xi River and Longxi River in China, including <italic>Megalobrama amblycephala</italic>, <italic>Megalobrama skolkovii</italic>, <italic>Megalobrama pellegrini</italic> and <italic>Megalobrama terminalis</italic> belonging to the genus <italic>Megalobrama</italic>, as well as white Amur bream (<italic>Parabramis pekinensis</italic>) of the genus <italic>Parabramis</italic>. Three of these five species had no previous LWR estimates in the FishBase. The LWRs of hybrids from <italic>Megalobrama amblycephala</italic> ♀ × <italic>Parabramis pekinensis</italic> ♂ and <italic>Megalobrama amblycephala</italic> ♀ × <italic>Megalobrama terminalis</italic> ♂ were also reported for the first time.</abstract>

College of Fisheries, Key Laboratory of Agricultural Animal Genetics, Breeding and Reproduction of Ministry of Education, Huazhong Agricultural University, Wuhan, Hubei, China

Hubei Collaborative Innovation Center for Freshwater Aquaculture, Wuhan, Hubei, China

Length-weight relationships of five Cultrinae fish species and two of their hybrids from China

<abstract xmlns="http://www.w3.org/1999/xhtml"><italic>Coptodon walteri</italic> Thys van den Audenaerde 1968, an endemic cichlid of Ivory Coast and Liberia, is assessed as Near Threatened due to fishing pressure and loss of habitats, and aquatic pollution as a result of extensive clandestine gold mining in the bed of the Cavally River. There is an immediate need for developing conservation and management plans for this species.</abstract>

Threatened fishes of the world: <italic>Coptodon walteri</italic> (Thys van den Audenaerde 1968) (Perciformes: Cichlidae)

AHEAD OF PRINT

Volume 82 (2024): Issue 2 (June 2024)

Volume 82 (2024): Issue 1 (March 2024)

Volume 81 (2023): Issue 4 (December 2023)

Volume 81 (2023): Issue 3 (September 2023)

Volume 81 (2023): Issue 2 (June 2023)

Volume 81 (2023): Issue 1 (March 2023)

Volume 80 (2022): Issue 4 (December 2022)

Volume 80 (2022): Issue 3 (September 2022)

Volume 80 (2022): Issue 2 (June 2022)

Volume 80 (2022): Issue 1 (March 2022)

Volume 79 (2021): Issue 4 (December 2021)

Volume 79 (2021): Issue 3 (September 2021)

Volume 79 (2021): Issue 2 (June 2021)

Volume 79 (2021): Issue 1 (March 2021)

Volume 78 (2020): Issue 4 (December 2020)

Volume 78 (2020): Issue 3 (September 2020)

Volume 78 (2020): Issue 2 (June 2020)

Volume 78 (2020): Issue 1 (March 2020)

Volume 77 (2019): Issue 4 (December 2019)

Volume 77 (2019): Issue 3 (September 2019)

Volume 77 (2019): Issue 2 (June 2019)

Volume 77 (2019): Issue 1 (March 2019)

Volume 76 (2018): Issue 4 (December 2018)

Volume 76 (2018): Issue 3 (September 2018)

Volume 76 (2018): Issue 2 (June 2018)

Volume 76 (2018): Issue 1 (March 2018)

Volume 75 (2017): Issue 4 (October 2017)

Volume 75 (2017): Issue 3 (September 2017)

Volume 75 (2017): Issue 2 (June 2017)

Volume 75 (2017): Issue 1 (March 2017)

Volume 74 (2016): Issue 4 (December 2016)

Volume 74 (2016): Issue 3 (September 2016)

Volume 74 (2016): Issue 2 (June 2016)

Volume 74 (2016): Issue 1 (March 2016)

Croatian Journal of Fisheries

 The Croatian Journal of Fisheries was established in 1938 and today possesses a long-term tradition of publishing papers that deal with both freshwater and marine fisheries. Areas covered by the Journal include ichthyology, aquaculture, ecology and diseases of fish and other aquatic organisms, problems of open waters and other topics related to the fisheries field.  Prior to publication, articles pass through rigorous review by senior scientists from around the world. The Journal features articles that reflect original research, interpretative content and subject matter of interest to the fisheries profession. The journal owner Faculty of Agriculture (FAZ) University of Zagreb, founded in 1919, is the leading higher education and scientific institution in the field of agriculture and related sciences in the Republic of Croatia, occupying an important position within the country's educational, scientific and research system. The FAZ organization is based on 28 departments with 417 members of the staff and 6 experimental stations.  The Croatian Journal of Fisheries (CJF) is committed to real and immediate open access for academic work. All of the CJF’s articles are free to access immediately from the date of publication. There are no author charges (APCs) prior to publication, and no charge for any reader to download articles and reviews for their own scholarly use. Users are allowed to read, download, copy, distribute, print, search, or link to the full texts of the articles, or use them for any other lawful purpose, without asking prior permission from the publisher or the author (see Copyright). This is in accordance with the BOAI definition of open access. To facilitate this the CJF depends upon the financial underwriting provided by the Croatian Ministry of Science, Education and Sport, Faculty of Agriculture, Croatian Chamber of Economy, journal subscribers, the goodwill of its editorial team and the continuing support of its network of peer reviewers.  Copyright:  Commercial distribution of journal articles in any form (printed or digital) is strictly forbidden. All published content in CJF is licensed under Creative commons Attribution-NoDerivs 3.0 licence. Authors of articles published in CJF retain the copyright of their articles and they are free to reproduce and disseminate their work under the terms of the Creative commons Attribution which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.  Why subscribe and read:  CJF is an English-language (additional abstract in Croatian language) peer-reviewed quarterly journal, publishing original research papers from the wide area of fisheries. It contains editorials, original scientific papers, preliminary and short communications, review papers, professional papers and supplements to fishing profession authored by researchers from all over the world, who appreciate fast, fair and constructive peer review provided by experts in the field of our profile. CJF reviewers have prompt and rapid response to the authors according to the schedule. At the time of paper submission, author will get unique paper ID and can check their paper status online. Also, CJF has simple and standard Template which can ease the submission procedure.  Why submit:  By submitting manuscripts in Croatian Journal of Fisheries authors can rely on fast peer review process and thorough editing by sector experts. CJF changed the Editorial Board to the Associate Editors system. In this way papers are more rigorously reviewed and the reviewing process is much faster. Consequently, the published papers are of much better quality.  Rejection rate:   30%   Archiving  Sciendo archives the contents of this journal in Portico - digital long-term preservation service of scholarly books, journals and collections.  Plagiarism Policy  The editorial board is participating in a growing community of Similarity Check System's users in order to ensure that the content published is original and trustworthy. Similarity Check is a medium that allows for comprehensive manuscripts screening, aimed to eliminate plagiarism and provide a high standard and quality peer-review process. 

Croatian Journal of Fisheries

Volume 74 (2016): Issue 2 (June 2016)

Some aspects of the biology of Abu mullet Liza abu (Heckel, 1843) in the Orontes River, Turkey

Dynamics of the adoption of improved aquaculture technologies among fish farmers in Lagos State, Nigeria

A review of introduction of common carp Cyprinus carpio in Pakistan: origin, purpose, impact and management

Length-weight relationships of five Cultrinae fish species and two of their hybrids from China

Threatened fishes of the world: Coptodon walteri (Thys van den Audenaerde 1968) (Perciformes: Cichlidae)

Suche

Alle Bände und Hefte dieser Zeitschrift