A contribution to knowledge of biology and economic importance of Aspius aspius (L.) of the Szczecin Firth

Trzebiatowski, R.; Leszczewicz, Teresa Lilia

doi:10.3750/aip1976.06.2.08

Cited by 3 publications

(14 citation statements)

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“…Differences in growth of males and females of the same age are not statistically significant, and usually not greater than 10 mm (Backiel, 1964; Trzebiatowski and Leszczewicz, 1976; Kompowski and Neja, 2003), which was confirmed in our study.…”

Section: Discussionsupporting

confidence: 85%

“…Such dietary habits are indicative of opportunistic predation and low selectivity. This can also be observed in asp samples from other waters (Horoszewicz, 1964; Trzebiatowski and Leszczewicz, 1976; Křížek and Vostradovský, 2002). Some authors have also found digested plant fragments, as well as terrestrial insects that have fallen into the water (Trzebiatowski and Leszczewicz, 1976).…”

Section: Discussionmentioning

confidence: 60%

“…The trophic niche breadth shows seasonal variability, gradually decreasing from May to November, probably as a function of prey availability. Seasonal changes of food diversity were also observed in the Bay of Szczecin, where the broadest food spectrum was observed in the summer (six prey fish species); from November it decreased to almost exclusively one prey fish species (smelt), and finally in February no food was found in the stomachs (Trzebiatowski and Leszczewicz, 1976).…”

Section: Discussionmentioning

confidence: 86%

“…Observed patterns of seasonal fluctuations in the vacuity index, trophic niche breadth, and Fulton’s condition factor were expected, since asp is a fish the activity and feeding intensity of which increases with a rise in water temperature (Trzebiatowski and Leszczewicz, 1976), and therefore is considered as a warm‐water, mesotherm species of the temperate climate.…”

Section: Discussionmentioning

confidence: 88%

“…The dominant age classes in the Ural River (Russia) (Berg et al., 1949) and in the Želivka Reservoir (Czech Republic) (Křížek and Vostradovský, 2002) are 3–5 years, in the Vistula River (Poland) 4–6 (Backiel, 1964), in the Pierzchaly Reservoir (Poland) 4–7 (Martyniak and Heese, 1994), and in Międzyodrze (the Oder River) (Poland) (Kompowski and Neja, 2004) and Lake Balaton (Hungary) (Biró and Fürész, 1976) age classes 5–7. The largest age class span was in the Bay of Szczecin (Poland), from 3+ to 16+, with the dominance of age class 4+ (Trzebiatowski and Leszczewicz, 1976).…”

Section: Discussionmentioning

confidence: 99%

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Diet and growth of asp, Aspius aspius (Linnaeus, 1758), in the Danube River near the confluence with the Sava River (Serbia)

Krpo‐Ćetković¹,

Hegediš²,

Lenhardt³

2010

Journal of Applied Ichthyology

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A sample of 198 asp (Aspius aspius) was collected over a 28.5 km long section of the Danube River, upstream and downstream from the mouth of the Sava River, in order to provide information on population structure, diet, growth, and condition of this species. Total body lengths of sampled fish were 90-405 mm, and body weights 5-567 g. The sample was predominantly sub-adult fish aged 0+ to 4+ years. Sexually immature asp prevailed over the sexually mature asp. The sex ratio (1.4 : 1) was biased toward males. Male asps in the Danube become sexually mature only in their fifth year of life, and the females even later, as no sexually mature females were caught. The diet spectrum consists exclusively of fishes; of seven determined prey species, most important are bleak Alburnus alburnus, roach Rutilus rutilus, and goldfish Carassius auratus. Highest value of the seasonal vacuity index is in November (I v = 94.1), and the smallest in July (I v = 35.6). Trophic niche breadth is largest in May (H = 1.40), and smallest in November (H = 0.00). The largest average number of prey items is found in age class 4+ (2.33), the smallest in age class 0+ (1.00). Von Bertalanffy growth parameters are L ¥ = 526.46, K = 0.28, and t 0 = 0.22. The length-weight relationship is described as log W = )5.16 + 3.03 log L. FultonÕs condition factor increases with fish length, from 0.70 to 0.83. Regarding seasonal fluctuations, this factor begins to increase in late spring, with the trend continuing until autumn, and then decreasing from autumn to spring.

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Section: Discussionsupporting

confidence: 85%

Section: Discussionmentioning

confidence: 60%

Section: Discussionmentioning

confidence: 86%

Section: Discussionmentioning

confidence: 88%

Section: Discussionmentioning

confidence: 99%

See 3 more Smart Citations

Diet and growth of asp, Aspius aspius (Linnaeus, 1758), in the Danube River near the confluence with the Sava River (Serbia)

Krpo‐Ćetković¹,

Hegediš²,

Lenhardt³

2010

Journal of Applied Ichthyology

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Annual and diel activity cycles of a northern population of the large migratory cyprinid fish asp (Leuciscus aspius)

et al. 2022

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May-September), which coincides with their main feeding period, than other times of the year. All fish had an annual riverine movement range larger than 40 km (max 110 km). Asp activity was affected by light, habitat type and water discharge. For most of the year, activity levels, in terms of number of movements per time unit, were higher during dawn and dusk than during day and night. Under poor light conditions and low temperatures, activity was also relatively high during the day. Fish were more likely to swim upstream around sunrise or during the day than during other diel periods. Knowledge about highactivity periods, which may render the fish vulnerable to fishing and other impacts, can be used to develop and evaluate fishing regulations. Large annual movement ranges highlight the need for extensive continuous river systems open for migration between essential habitats. This study emphasises the need for region-specific research on the ecology and behaviour of fish populations in order to facilitate protection of the populations in the face of negative human impacts.

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Migration patterns of a potamodromous piscivore, asp (Leuciscus aspius), in a river–lake system

Kärgenberg

Økland

Thalfeldt³

et al. 2020

Journal of Fish Biology

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Potamodromous fishes require safe migration routes between spawning, feeding and wintering habitats to complete their life cycle. As knowledge on asp migrations is restricted, this work investigated the movements of adult asp tagged with acoustic transmitters for 3 years in the large Peipsi-Emajõgi-Võrtsjärv lake-river system, Estonia, which is free of migration barriers. Asp showed complex migration patterns, moving between and within different waterbodies (lakes, river, tributaries) in all seasons, but with a tendency to repeat habitat use patterns between years. Lakes were mainly used for feeding during spring and summer (after spawning 65% of the fish migrated to Lake Peipsi), and more so by large fish. The majority (80-96%) of the fish spent the winter in the rivers, mostly close to their subsequent spawning area. Spawning areas were in swift-flowing waters in tributaries and the main river. The results indicate that asp may benefit from an extensive and diverse complex of habitats, and any migration barrier during any season may restrict the natural habitat use by asp. Maintenance and restoration of habitat heterogeneity and connectivity is critical to protect behaviourally diverse fish populations and increase resilience in rivers negatively impacted by various human activities.

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A contribution to knowledge of biology and economic importance of Aspius aspius (L.) of the Szczecin Firth

Cited by 3 publications

References 1 publication

Diet and growth of asp, Aspius aspius (Linnaeus, 1758), in the Danube River near the confluence with the Sava River (Serbia)

Diet and growth of asp, Aspius aspius (Linnaeus, 1758), in the Danube River near the confluence with the Sava River (Serbia)

Annual and diel activity cycles of a northern population of the large migratory cyprinid fish asp (Leuciscus aspius)

Migration patterns of a potamodromous piscivore, asp (Leuciscus aspius), in a river–lake system

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