Journal of Applied Ichthyology

article

Antagonistic activity of two potential probiotic bacteria from fish intestines and investigation of their effects on growth performance and immune response in rainbow trout (Oncorhynchus mykiss)

H. R. R. Andani, A. Tukmechi, S. Meshkini, N. Sheikhzadeh

Journal of Applied Ichthyology > 28 > 5 > 728 - 734

The probiotic activity of two bacterial strains, Lactobacillus casei and Lactobacillus plantarum, isolated from common carp intestines was studied using antagonistic tests in vitro against Yersinia ruckeri. Randomly assigned to triplicate groups were 450 rainbow trout (mean weight, 20 ± 3 g) fed three different diets: a commercial feed, or the same feed incorporated into either 5 × 10⁷ CFU g⁻¹ of...

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Age, growth and mortality of scaldfish (Arnoglossus laterna Walbaum, 1792) from the Adriatic Sea

V. Tičina, S. Matić‐Skoko

Journal of Applied Ichthyology > 28 > 5 > 836 - 841

The population dynamics parameters of scaldfish, Arnoglossus laterna, from the Adriatic Sea were studied. Specimens ranging from 4.5 to 17.1 cm in total length were collected from commercial bottom‐trawl catches (2000–2006). Spawning from April through the end of August with a peak in May, A. laterna is one of the non‐target species usually present in mixed bottom trawl catches. The overall male to...

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Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America

M. J. Gonzalez Naya, A. Tombari, A. Volpedo, S. E. Gómez

Journal of Applied Ichthyology > 28 > 5 > 752 - 755

The Australoheros facetus, locally known as ‘chanchita’, is the southernmost (38º44′S) distributed cichlid species in South America where it is eurytopic and abundant in the pampasic ‘laguna’, and an important dietary component of numerous piscivorous fishes and birds. The objective of the present study was to extend and correct the description of sagitta otoliths of Australoheros facetus and evaluate...

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Size at first sexual maturity, fecundity, length–weight and length–length relationships of Puntius sophore (Cyprinidae) in Bangladeshi waters

M. Y. Hossain, M. Mosaddequr Rahman, R. Miranda, P. M. Leunda, more

Journal of Applied Ichthyology > 28 > 5 > 818 - 822

The present study describes the size at first sexual maturity, fecundity, length–weight (LWRs) and length–length relationships (LLRs) of the pool barb, Puntius sophore, using data obtained from different geographical locations in Bangladesh. A total of 905 specimens were caught by traditional fishing gear from March 2010 to February 2011. Additionally, a total of 121 females were collected from a...

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Length–weight relationships of 14 coastal fish species from Punta del Diablo (Rocha, Uruguay)

A. M. Segura, R. Trinchin, J. Rabellino, F. Scarabino, more

Journal of Applied Ichthyology > 28 > 5 > 852 - 853

This study provides information on length‐weight relationships for 14 marine fish species. Specimens were collected between 2006 and 2010 from the Uruguayan coastal zone (depth < 15 m) in Punta del Diablo, Rocha during a biodiversity monitoring program. This study represents the first reference on length‐weight relationships for two endangered Rajidae species and confirms the presence of the Stellifer rastrifer,...

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Length–weight relationships (LWRs) of 12 Indian freshwater fish species from an un‐impacted tropical river of Central India (River Ken)

V. K. Dubey, U. K. Sarkar, R. S. Kumar, J. I. Mir, more

Journal of Applied Ichthyology > 28 > 5 > 854 - 856

The length–weight relationships (LWRs) were studied of 441 fish individuals covering six families, eight genera and 12 freshwater species (L. dyochilus, L. calbasu, L. gonius, L. fimbriatus, P. sarana, L. boggut, C. mrigala, W. attu, B. bagarius, E. vacha, N. notopterus and S. aor) captured in the River Ken (tributary of the Yamuna River) from December 2007 to January 2009. The b value ranged from...

article

Evaluation of Artemia and formulated diets on performance of Persian sturgeon Acipenser persicus larvae

B. Falahatkar, E. Sotoudeh, A. M. Lazur

Journal of Applied Ichthyology > 28 > 5 > 709 - 712

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Length–weight relationships of freshwater fishes in the Biga Peninsula (northwestern Anatolia, Turkey)

A. İlhan, H. M. Sarı, H. Saygı, M. R. Ustaoğlu

Journal of Applied Ichthyology > 28 > 5 > 857 - 858

This study provides length–weight relationship information for 13 fish taxa from Biga Peninsula, in northwestern Anatolia, Turkey, collected from 16 streams between 2000 and 2001.

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Abnormal blacktip shark, Carcharhinus limbatus, embryo from the northern Gulf of Mexico

W. B. Driggers, K. M. Hannan, E. R. Hoffmayer, J. Jensen

Journal of Applied Ichthyology > 28 > 5 > 827 - 828

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First documented occurrence of Hoplostethus mediterraneus Cuvier, 1829 in the Adriatic Sea

N. Antolović, V. Kožul

Journal of Applied Ichthyology > 28 > 5 > 829 - 830

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Limited contribution of predation by zooplanktivorous cyprinids to 0+ fish mortality

C. Schomaker, C. Wolter

Journal of Applied Ichthyology > 28 > 5 > 735 - 739

Predation by zooplanktivorous cyprinids was hypothesized as substantially contributing to larval fish mortality. To test this assumption, potential predators were sampled by electric fishing at sites and times of high fish larvae densities in the lower Oder River, Germany, in 2002 and 2003. At ten sites with high prey fish densities, all fishes ≥1+ and 0+ pike – all considered potentially predating...

article

Thermotolerance of brown trout, Salmo trutta, gametes and embryos to increased water temperatures

F. Lahnsteiner

Journal of Applied Ichthyology > 28 > 5 > 745 - 751

The present study investigated the effect of increased water temperature on sperm motility when activated in water, on egg water hardening, on the fertilization process and on embryonic development in brown trout, Salmo trutta. Brown trout gametes had a broad temperature optimum ranging from 3 to 15°C. In this temperature range the processes of egg water hardening and fertilization were unaffected...

article

Assessment of the seasonal usage of the lower Pascagoula River estuary by Gulf sturgeon (Acipenser oxyrinchus desotoi)

J.‐M. Havrylkoff, M. S. Peterson, W. T. Slack

Journal of Applied Ichthyology > 28 > 5 > 681 - 686

The Pascagoula watershed likely offers the greatest possibility for the survival of the Gulf sturgeon, Acipenser oxyrinchus desotoi, within Mississippi. Thus, understanding and preserving the connectivity between distant habitats in this region plays a major role in protecting and managing such anadromous fish populations. The focus of this project was to determine the within‐river routes Gulf sturgeon...

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Use of a mammalian gonadotropin‐releasing hormone (GnRH) agonist to characterize pituitary GnRH receptors in white sturgeon (Acipenser transmontanus Richardson)

B. Mojazi Amiri, T. E. Adams, S. I. Doroshov, M. Paktinat

Journal of Applied Ichthyology > 28 > 5 > 687 - 691

Aim of the present study was to characterize the pituitary GnRH receptor in white sturgeon, Acipenser transmontanus, using a superagonist analog of mammalian GnRH [D‐Ala⁶, des‐Gly¹⁰–Pro⁹]‐ethylamide and to investigate the possible effect of estradiol‐17β treatment on the concentration and affinity of the GnRH receptor in immature white sturgeon. The binding of ¹²⁵I‐GnRH‐A to sturgeon pituitary receptors...

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The reproductive biology of Plagioscion squamosissimus (Heckel, 1840) in the Pará River estuary (Amazon Estuary)

N. D. Barbosa, R. M. Rocha, F. Lucena Frédou

Journal of Applied Ichthyology > 28 > 5 > 800 - 805

This study describes the reproductive biology of the South American silver croaker Plagioscion squamosissimus (Heckel, 1840) in the Pará River estuary. Data were collected bimonthly from June 2007 to May 2008. In all, 334 specimens were examined. The gonads were processed with histological techniques, and the ovaries were subjected to morphometric analysis. The length at first maturity (L₅₀) values...

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Preserving young‐of‐the‐year Perca fluviatilis in ethanol, formalin, or in a frozen state and the consequences for measuring morphometrics

U. König, J. Borcherding

Journal of Applied Ichthyology > 28 > 5 > 740 - 744

As it is often not possible to immediately analyse individuals sampled in the field, captured fish are preserved and stored for later investigation. The objective of this study was to assess the effects of various preservation methods on subsequent changes in morphometric parameters while also providing correction factors to re‐calculate the original body dimensions when sampled fish are measured...

article

Growth, length–weight relationship and biological information on the clearhead icefish (Protosalanx hyalocranius Abbott, 1901) in Lake Khanka (Xingkai)

F. J. Tang, W. Liu, J. Wang, R. Froese, more

Journal of Applied Ichthyology > 28 > 5 > 842 - 844

This paper reports the growth pattern and length‐weight relationship and summarizes biological data for the clearhead icefish (Protosalanx hyalocranius) in Lake Khanka (Xingkai), on the border between China and Russia. The von Bertalanffy growth was estimated as SL = 20.3(1 − e^{−2.93 (t − 0.21)}). The length‐weight relationship was W = 0.00448 SL^2.99 for juveniles, and W = 0.000896 SL^3.59 for adults...

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Weight–length relationship and food items of four species in the Alvarado Lagoon System, Veracruz, Mexico

L. G. Abarca‐Arenas, J. Franco‐López, E. Valero‐Pacheco, R. Z. Arciniega

Journal of Applied Ichthyology > 28 > 5 > 848 - 849

The weight–length relationships of four fish species are reported from bi‐monthly samples between 2007 and 2008 in the Alvarado Lagoon System, Mexico. Two of the species have no previous estimates.

article

Effect of starvation and re‐feeding on growth performance and content of plasma lipids, glucose and insulin in cultured juvenile Persian sturgeon (Acipenser persicus Borodin, 1897)

M. Yarmohammadi, A. Shabani, M. Pourkazemi, H. Soltanloo, more

Journal of Applied Ichthyology > 28 > 5 > 692 - 696

The effect of starvation and subsequent re‐feeding to satiation on compensatory growth performance, insulin and blood serum values were investigated in juvenile Persian sturgeon (Acipencer persicus) with an average weight 108.04 ± 0.28 g (mean ± SEM) and in the same rearing condition over an 8‐week period. Sturgeons were allocated to one of five feeding treatments: controls (C, continuous feeding),...

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Weight–length relationship of 63 demersal fishes on the shallow coast of Paraná, Brazil

A. C. Passos, R. Schwarz, B. F. C. Cartagena, A. S. Garcia, more

Journal of Applied Ichthyology > 28 > 5 > 845 - 847

This work presents the weight–length relationship of 63 species of fish belonging to 24 families. Data were collected monthly along the Paraná state coast (Brazil) from August 2004 to July 2005 on five transects between 6 and 15 m. Several of these species had no previously published weight–length relationships.

INFONA - science communication portal

Journal of Applied Ichthyology

Antagonistic activity of two potential probiotic bacteria from fish intestines and investigation of their effects on growth performance and immune response in rainbow trout (Oncorhynchus mykiss)

Age, growth and mortality of scaldfish (Arnoglossus laterna Walbaum, 1792) from the Adriatic Sea

Size related changes in sagitta otoliths of Australoheros facetus (Pisces; Cichlidae) from South America

Size at first sexual maturity, fecundity, length–weight and length–length relationships of Puntius sophore (Cyprinidae) in Bangladeshi waters

Length–weight relationships of 14 coastal fish species from Punta del Diablo (Rocha, Uruguay)

Length–weight relationships (LWRs) of 12 Indian freshwater fish species from an un‐impacted tropical river of Central India (River Ken)

Evaluation of Artemia and formulated diets on performance of Persian sturgeon Acipenser persicus larvae

Length–weight relationships of freshwater fishes in the Biga Peninsula (northwestern Anatolia, Turkey)

Abnormal blacktip shark, Carcharhinus limbatus, embryo from the northern Gulf of Mexico

First documented occurrence of Hoplostethus mediterraneus Cuvier, 1829 in the Adriatic Sea

Limited contribution of predation by zooplanktivorous cyprinids to 0+ fish mortality

Thermotolerance of brown trout, Salmo trutta, gametes and embryos to increased water temperatures

Assessment of the seasonal usage of the lower Pascagoula River estuary by Gulf sturgeon (Acipenser oxyrinchus desotoi)

Use of a mammalian gonadotropin‐releasing hormone (GnRH) agonist to characterize pituitary GnRH receptors in white sturgeon (Acipenser transmontanus Richardson)

The reproductive biology of Plagioscion squamosissimus (Heckel, 1840) in the Pará River estuary (Amazon Estuary)

Preserving young‐of‐the‐year Perca fluviatilis in ethanol, formalin, or in a frozen state and the consequences for measuring morphometrics

Growth, length–weight relationship and biological information on the clearhead icefish (Protosalanx hyalocranius Abbott, 1901) in Lake Khanka (Xingkai)

Weight–length relationship and food items of four species in the Alvarado Lagoon System, Veracruz, Mexico

Effect of starvation and re‐feeding on growth performance and content of plasma lipids, glucose and insulin in cultured juvenile Persian sturgeon (Acipenser persicus Borodin, 1897)

Weight–length relationship of 63 demersal fishes on the shallow coast of Paraná, Brazil

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