scholarly journals Comparison of ovarian cycles of Hungarian riverine fish species representing different spawning strategies 441

2008 ◽  
Vol 53 (No. 10) ◽  
pp. 441-452 ◽  
Author(s):  
K.K. Lefler ◽  
Á. Hegyi ◽  
F. Baska ◽  
J. Gál ◽  
Á. Horváth ◽  
...  
Keyword(s):  
Fish Species ◽  
Ovarian Cycle ◽  
Spawning Period ◽  
Barbus Barbus ◽  
Chondrostoma Nasus ◽  
Leuciscus Idus ◽  
Riverine Fish ◽  
White Bream ◽  
Heterogeneous Size

Investigations on the ovarian cycle of fish species that inhabit Hungarian rivers are necessitated by both environmental and economic reasons. The objective of our research was to explore new fundamental knowledge concerning the ovarian cycle of the white bream (<I>Blicca bjoerkna</I>, Linnaeus, 1758), barbel (<I>Barbus barbus</I>, Linnaeus, 1758), orfe <I>(Leuciscus idus</I>, Linnaeus, 1758) and nase (<I>Chondrostoma nasus</I>, Linnaeus, 1758). Histological investigation of ovaries and determination of proportions of oocytes in different stages of development is an appropriate method for the description of spawning characteristics of these species. Our results show that the GSI value for all four investigated species starts to increase at the end of summer and reaches its maximum before spawning. In the barbel and white bream, the presence of oocytes in the stage of cortical alveoli and the heterogeneous size of oocytes in the stage of vitellogenesis in the pre-spawning period indicate that barbel and white bream are multiple spawners. In contrast, in the orfe and nase, the absence of oocytes in the stage of cortical alveoli and the homogeneous size of cells in the stage of vitellogenesis indicate that orfe and nase are single spawners.

Assessment of Spawning and Nursery Areas in the River Meuse

1994 ◽  
Vol 29 (3) ◽  
pp. 297-299 ◽  
Author(s):  
F. T. Vriese ◽  
S. Semmekrot ◽  
A. J. P. Raat
Keyword(s):  
Fish Species ◽  
Perca Fluviatilis ◽  
Main Stream ◽  
Nursery Areas ◽  
Barbus Barbus ◽  
River Meuse ◽  
Perch Perca Fluviatilis ◽  
Chondrostoma Nasus ◽  
Leuciscus Idus ◽  
Tench Tinca Tinca

In commission of Rijkswaterstaat Directorate Limburg, a desk study was carried out by the OVB to assess whether fish species in the river Meuse are restricted in their abundance and distribution by the lack of appropriate spawning habitat. The area studied comprises the Dutch part of the river between Eijsden and Hedel, including old river arms and former gravel pits connected with the main stream. Not included in the study is the Grensmaas, a non-canalised stretch of the river. A total of 21 fish species were selected, whose habitat requirements regarding spawning and growth were collected by a literature survey. The assessment was made by relating habitat-associated factors (water depth, rate of flow, substratum, macrophytes) with fish-specific requirements on spawning and growth. Thus it was possible to assess per river section of 100 meters length its potential suitability as spawning and nursery area for 17 species. It was concluded that no potential spawning and nursery areas are available for barbel (Barbus barbus), chub (Leuciscus cephalus), nose carp (Chondrostoma nasus) and dace (Leuciscus leuciscus). The presence of these species in the study area can be explained by migration out of the Grensmaas. Only on 1.5 % of the total amount of river sections macrophytes are present, which obviously limits the possibilities for the phytophilic species pike (Esox lucius), tench (Tinca tinca), crucian carp (Carassius carassius), carp (Cyprinus carpio), bitterling (Rhode us sericeus amarus), white bream (Blicca bjoerkna) and rudd (Scardinius erythrophthalmus). For ide (Leuciscus idus), gudgeon (Gobio gobio), bleak (Alburnus alburnus), perch (Perca fluviatilis), pikeperch (Stizostedion hicioperca) and ruffe (Gymnocephalus cernua) potential spawning and nursery areas are abundantly present.

scholarly journals The importance of a constructed near-nature-like Danube fish by-pass as a lifecycle fish habitat for spawning, nurseries, growing and feeding: a long-term view with remarks on management

2018 ◽  
Vol 69 (12) ◽  
pp. 1857 ◽  
Author(s):  
Paul Meulenbroek ◽  
Silke Drexler ◽  
Christoffer Nagel ◽  
Michael Geistler ◽  
Herwig Waidbacher
Keyword(s):  
Fish Habitat ◽  
Fish Fauna ◽  
Native Fish ◽  
Management Tools ◽  
Pass System ◽  
Barbus Barbus ◽  
Danube Catchment ◽  
Chondrostoma Nasus ◽  
Riverine Fish

Major sections of today’s rivers are man made and do not provide the essential requirements for riverine fish. A nature-like fish by-pass system in Vienna-Freudenau was assessed for its function as a fish habitat. The study was conducted continuously over 3 years; 15 years after construction of the by-pass. The chosen nature-like construction of the by-pass system functions like natural tributaries. More than 17000 fish and 43 species, including several protected and endangered species, in all life stages, including eggs, larvae, juveniles and adults, were captured. Furthermore, the indicator species of the free-flowing Danube, nase (Chondrostoma nasus) and barbel (Barbus barbus), migrated into the fish by-pass and successfully spawned before returning. Therefore, our results suggest that by-pass systems can function as an important habitat for the conservation of native fish fauna. The heterogenic habitat configuration provides conditions for all ecological guilds and, consequently, increases biodiversity. Finally, approved management tools are discussed. We suggest that fish by-pass channels may be suitable at other sites in the Danube catchment.

scholarly journals The Contribution of Different Restored Habitats to Fish Diversity and Population Development in a Highly Modified River: A Case Study from the River Günz

Water ◽  
2018 ◽  
Vol 10 (9) ◽  
pp. 1202 ◽  
Author(s):  
Joachim Pander ◽  
Juergen Geist
Keyword(s):  
Habitat Restoration ◽  
Fish Diversity ◽  
Population Development ◽  
Target Species ◽  
Endangered Fish ◽  
Barbus Barbus ◽  
High Conservation ◽  
Chondrostoma Nasus ◽  
River Dynamic ◽  
Riverine Fish

Despite of structural deficits, highly modified water bodies (HMWB) contain remnant populations of endangered fish that have high conservation value. Restoration in HMWBs underlies different principles when compared to natural rivers because of impaired river dynamic processes. The objective herein was to assess the contribution of restored habitats of the River Günz, Germany to fish diversity and restoration success of target species. All habitat restoration types, including bank habitats, fast flowing habitats with gravel, structured shallow water zones, nature like fish passes, and a former river course below a spillway were assessed. None of them comprised the full set of 27 fish species or size classes, indicating that the diversity and interlinkage of the restored habitats is most crucial to sustainable fish populations and high biodiversity. When considering the rheophilic target species Chondrostoma nasus and Barbus barbus, only fish passes and the former river course with their high flow current contributed much to their population development, particularly to young specimens <20 cm. The results of this study indicate that measures inside the main channel are unlikely to mitigate deficiencies in HMWBs concerning specialized riverine fish. Instead, interlinkage of a diversity of restoration measures and investment of resources for restoration in HMWBs into nature-like fish passes or former river courses below spillways with dynamically managed discharges seem most useful.

scholarly journals Correlation between Heavy Metal-Induced Histopathological Changes and Trophic Interactions between Different Fish Species

2021 ◽  
Vol 11 (9) ◽  
pp. 3760
Author(s):  
Bianca Onita (Mladin) ◽  
Paul Albu ◽  
Hildegard Herman ◽  
Cornel Balta ◽  
Vasile Lazar ◽  
...  
Keyword(s):  
Fish Species ◽  
Structural Changes ◽  
Atomic Absorption Spectrophotometry ◽  
Nuclear Antigen ◽  
Histopathological Changes ◽  
Barbus Barbus ◽  
Tnf Α ◽  
Repair Mechanisms ◽  
Carnivorous Species ◽  
Chondrostoma Nasus

This study assessed the distribution of heavy metals in the gills, kidney, and liver, correlated with the severity of histopathological changes, of three fish species with different feeding habitats (Barbus barbus, Squalius cephalus, and Chondrostoma nasus) from the Crișul Negru river, Romania. The levels of copper (Cu), chromium (Cr), cadmium (Cd), lead (Pb), and zinc (Zn) in fish tissues were measured by atomic absorption spectrophotometry. Histopathology and the expressions of TNF-α and proliferation cell nuclear antigen (PCNA) were investigated by immunohistochemistry and Western blot. Our data suggest a significant correlation between the bioconcentration level of metals and structural changes. The carnivorous species was the most affected compared to the omnivorous and herbivorous ones, and the most affected organ was the kidney. Moreover, the correlation of tissue damage with the PCNA and TNF-α expression levels revealed that the herbivorous species presented less extended lesions, likely due to higher activated repair mechanisms and lower levels of inflammation. In conclusion, our data and the subsequent statistical analysis suggest that feeding behavior could be correlated with the histopathological alterations and might be used for a more profound evaluation of aquatic environment safety and analysis of aquatic ecosystems.

scholarly journals Harvest Rates of Rheophilic Fish Vimba vimba, Chondrostoma nasus, and Barbus barbus Have a Strong Relationship with Restocking Rates and Harvest Rates of Their Predator Silurus glanis in Lowland Mesotrophic Rivers in Central Europe

2021 ◽  
Vol 13 (20) ◽  
pp. 11379
Author(s):  
Roman Lyach
Keyword(s):  
Fish Species ◽  
Negative Relationship ◽  
Additive Model ◽  
Strong Relationship ◽  
Harvest Rate ◽  
Silurus Glanis ◽  
Barbus Barbus ◽  
Chondrostoma Nasus ◽  
Fish Harvest ◽  
Rheophilic Fish

The European catfish Silurus glanis (Linnaeus, 1758) is an expanding apex piscivorous predator whose predation may drive fish harvest rates and fish populations. This study aimed to analyze the relationships between intensive catfish stocking/harvesting and harvest rates of putative catfish prey–three rheophilic fish species: vimba bream Vimba vimba, nase Chondrostoma nasus, and barbel Barbus barbus (Linnaeus, 1758). The GAM (generalized additive model) was used to analyze the relationships between the harvest rate and the stocking intensity rate of the catfish and the three rheophilic fish species. The harvest rates and stocking intensity rates were obtained from mandatory angling logbooks collected from 38,000 individual recreational anglers by the Czech Fishing Union on 176 fishing sites over the years 2005–2017 in central Bohemia and Prague (the Czech Republic). Our results show that a higher intensity of catfish stocking and harvesting resulted in a lower harvest rate of rheophilic fishes. Conversely, the stocking rates of rheophilic fishes were not significantly correlated to their harvest rates. In conclusion, a significant negative relationship was found between the harvest rate and the restocking rates of rheophilic fishes and their predator, suggesting that fisheries managers should not perform intensive stocking of both catfish and rheophilic fishes on the same rivers.

Inducing Gynogenetic Development of IDE (Leuciscus Idus L.) Using Semen of other Fish Species

2007 ◽  
Vol 22 (4) ◽  
pp. 714-721 ◽  
Author(s):  
Dariusz Kucharczyk ◽  
Andrzej Szczerbowski ◽  
Marek J. Łuczyński ◽  
Roman Kujawa ◽  
Andrzej Mamcarz ◽  
...  
Keyword(s):  
Fish Species ◽  
Leuciscus Idus

Watershed-level sampling effort requirements for determining riverine fish species composition

2005 ◽  
Vol 62 (7) ◽  
pp. 1580-1588 ◽  
Author(s):  
Katherine L Smith ◽  
Michael L Jones
Keyword(s):  
Species Richness ◽  
Species Composition ◽  
Fish Species ◽  
Correlation Coefficients ◽  
Sampling Effort ◽  
Species Accumulation Curves ◽  
Targeted Sampling ◽  
Weak Negative Correlation ◽  
Fish Species Composition ◽  
Riverine Fish

Accurate assessments of watershed-level species composition are necessary for comparative ecological studies, ecosystem health assessments, monitoring, and aquatic conservation prioritization. Several studies have addressed sampling effort requirements for characterizing fish species composition at a section of stream, but none have examined watershed-level requirements. In the spring and summer of 2002, we extensively sampled nine Great Lakes watersheds to assess sampling-effort requirements. Sampling requirements increased with the targeted percentage of estimated species richness. Sampling 15–119 randomly selected reaches of stream, stratified by stream order, was on average sufficient to detect 80%–100% of estimated species richness. Watershed size (km2) and estimated species richness each showed a weak, negative correlation with sampling-effort requirements in our study streams, with Pearson's correlation coefficients of –5.06 and –0.590, respectively. Because of among-watershed variability in sampling effort requirements, field crews should plot species accumulation curves onsite to determine adequate inventory completion. Based on the difficulty of detecting the last 10% of species, random sampling should be conducted in conjunction with targeted sampling of rare species.

Determination of Metal Levels in Thirteen Fish Species from Lakshadweep Sea

2011 ◽  
Vol 88 (1) ◽  
pp. 69-73 ◽  
Author(s):  
Kottila Veettil Dhaneesh ◽  
Mohan Gopi ◽  
Kunnamgalam Mohammed Noushad ◽  
Raghunathan Ganeshamurthy ◽  
Thipramalai Thankappan Ajith Kumar ◽  
...  
Keyword(s):  
Fish Species ◽  
Metal Levels ◽  
Lakshadweep Sea

Management and monitoring of the return of riverine fish species following rehabilitation of Dutch rivers.

Large Rivers ◽  
2003 ◽  
Vol 15 (1-4) ◽  
pp. 391-411 ◽  
Author(s):  
J. J. De Leeuw ◽  
A. D. Buijse ◽  
R. E. Grift ◽  
H. V. Winter
Keyword(s):  
Fish Species ◽  
Riverine Fish

scholarly journals From an irrigation system to an ecological asset: adding environmental flows establishes recovery of a threatened fish species

2019 ◽  
Vol 70 (9) ◽  
pp. 1295 ◽  
Author(s):  
Ivor Stuart ◽  
Clayton Sharpe ◽  
Kathryn Stanislawski ◽  
Anna Parker ◽  
Martin Mallen-Cooper
Keyword(s):  
Water Level ◽  
Fish Species ◽  
Life Histories ◽  
Environmental Flows ◽  
Irrigation System ◽  
Spatial Scales ◽  
Environmental Water ◽  
Environmental Flow ◽  
Murray Cod ◽  
Riverine Fish

Worldwide, riverine fish are the target of environmental water because populations have declined in lotic river habitats following river regulation. Murray cod is an endangered Australian riverine fish with remaining populations associated with lotic river reaches with instream habitat, including some creeks operated as part of irrigation systems. Our objectives were to develop a life history model, apply the building block method of environmental flows to enhance the abundance of juvenile Murray cod and promote population recovery. From 2008 to 2018 we evaluated changes to Murray cod juvenile abundance before and after implementation of a perennial environmental flow regime that began in 2013. During the first year of the environmental flow, larvae were collected as evidence of spawning. Murray cod abundance can be enhanced with environmental flows that target: (1) an annual spring spawning or recruitment flow with no rapid water level drops; (2) maximising hydrodynamic complexity (i.e. flowing habitats that are longitudinally continuous and hydrodynamically complex); and (3) an annual base winter connection flow. Recognition that incorporating hydraulics (water level and velocity) at fine and coarse time scales, over spatial scales that reflect life histories, provides broader opportunities to expand the scope of environmental flows to help restore imperilled fish species in regulated ecosystems.

Sign in / Sign up

Export Citation Format

Share Document