Habitat use and food sources of European flounder larvae (Platichthys flesus, L. 1758) across the Minho River estuary salinity gradient (NW Iberian Peninsula)

Although species identification is a central component on Biological Sciences, misidentifications are quite common generating error cascade effects on other environmental studies, resulting on erroneous population estimates, status, trends, and distribution data. One of the main causes of these errors occurs when dealing with damaged material, immature specimens, sexual dimorphism, intraspecific variation, and species with poor or outdated descriptions. Furthermore, usually there is no material retained as voucher of the specimens studied in scientific collections, hindering confirmation the identified species, in morphoanatomical and genetic scope. Even with this reliance on species identification taxonomy has been in decline for many years. In this study, we present the case study of the crustaceans identified for the Minho River estuary (NW Iberian Peninsula), using a taxonomic approach comparing these results with the biological surveys obtained through various ecology studies performed for 4 decades. A total of 64 species of crustaceans were identified within this study, in which 44 were new records for the Minho River estuary, compared to the 25 species identified on the biological surveys analyzed. Being one of the first studies of this nature in the Minho River, the main objective will be to provide taxonomic support in future projects in this area, contributing to the knowledge of the fauna of Portugal and the Iberian Peninsula.

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Organic matter sources for tidal marsh sediment over the past two millennia in the Minho River estuary (NW Iberian Peninsula)

Organic Geochemistry ◽

10.1016/j.orggeochem.2012.06.014 ◽

2012 ◽

Vol 53 ◽

pp. 16-24 ◽

Cited By ~ 16

Author(s):

J.M. De la Rosa ◽

M.F. Araújo ◽

J.A. González-Pérez ◽

F.J. González-Vila ◽

A.M. Soares ◽

...

Keyword(s):

Organic Matter ◽

Iberian Peninsula ◽

Tidal Marsh ◽

River Estuary ◽

Marsh Sediment ◽

Organic Matter Sources ◽

The Past ◽

Minho River

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Frequency of hepatocellular fibrillar inclusions in European flounder (Platichthys flesus) from the Douro River estuary, Portugal

Environmental Science and Pollution Research ◽

10.1007/s11356-013-2248-y ◽

2013 ◽

Vol 21 (4) ◽

pp. 3116-3125 ◽

Cited By ~ 3

Author(s):

João Carrola ◽

António Fontaínhas-Fernandes ◽

Maria João Pires ◽

Eduardo Rocha

Keyword(s):

River Estuary ◽

Platichthys Flesus ◽

European Flounder ◽

Douro River

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Crustaceans (Malacostraca and Thecostraca) from the International Minho River, Iberian Peninsula

Hydrobiology ◽

10.3390/hydrobiology1010005 ◽

2021 ◽

Vol 1 (1) ◽

pp. 47-75

Author(s):

Nuno Gomes ◽

Dimítri A. Costa ◽

Harold Cantallo ◽

Carlos Antunes

Keyword(s):

Iberian Peninsula ◽

Sampling Methods ◽

New Records ◽

River Estuary ◽

Species Distributions ◽

Beam Trawl ◽

Invertebrate Fauna ◽

Glass Eel ◽

Minho River

Crustaceans (Arthropoda) are a diverse and abundant group with chitinous exoskeleton, living on coastal/estuarine environments, at community invertebrate fauna. A survey on the species of some crustacean groups found on the Minho River estuary (international section) in the Iberian Peninsula, is presented with specimens collected through glass eel fishing bycatch, grab sampler, trammel net, beam trawl and fyke net sampling methods. A total of 98 specimens were examined belonging to 7 orders, 21 genera and 23 species (17 new records from Minho River, including one for Portugal). Brief diagnosis, ecological notes, species distributions and figures are provided intending to present taxonomic support on future projects in this region.

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Summer habitat use and movements of late juvenile European flounder (Platichthys flesus) in tidal freshwaters: Results from an acoustic telemetry study

Journal of Experimental Marine Biology and Ecology ◽

10.1016/j.jembe.2014.09.015 ◽

2014 ◽

Vol 461 ◽

pp. 441-448 ◽

Cited By ~ 10

Author(s):

C. Le Pichon ◽

T. Trancart ◽

P. Lambert ◽

F. Daverat ◽

E. Rochard

Keyword(s):

Habitat Use ◽

Acoustic Telemetry ◽

Platichthys Flesus ◽

European Flounder ◽

Tidal Freshwaters

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Habitat use of golden jackals (Canis aureus) in riverine areas of northern Bosnia and Herzegovina

European Journal of Wildlife Research ◽

10.1007/s10344-021-01457-7 ◽

2021 ◽

Vol 67 (1) ◽

Author(s):

Aldin Selimovic ◽

Eva Maria Schöll ◽

Larissa Bosseler ◽

Jennifer Hatlauf

Keyword(s):

Habitat Use ◽

Bosnia And Herzegovina ◽

Agricultural Practices ◽

Binary Logistic Regression ◽

Food Sources ◽

Golden Jackal ◽

Canis Aureus ◽

Logistic Regression Models ◽

Habitat Analysis ◽

Group Density

AbstractRecently confirmed expansion of golden jackals (Canis aureus) into countries without any previous records poses questions, one of them focusing on the species potential and possibly varying habitat use. In this study, we investigated the presence and distribution of golden jackals in northern Bosnia and Herzegovina, where knowledge about golden jackal distribution and habitat use is still scarce. We used bioacoustic stimulation as a non-invasive tool to gather data on golden jackal presence. Habitat structures potentially selected by the species were assessed at 92 calling stations and used as input for binary logistic regression models. Our study area covered approximately 1150 km2, and bioacoustic stimulation within this area resulted in an estimated minimum relative group density of 3.5 territorial groups per 100 km2. We found territorial groups at distances between 15 and 38 km southwards from the river Sava but always within a maximum range of 3 km to perennial watercourses. Habitat analysis identified shrub vegetation and pastures as structures with a significant effect on the presence of resident golden jackals. Probability that golden jackals answered at calling stations increased with increasing surface area covered with pastures and shrubs. Distances between golden jackal territories and the nearest human settlement were relatively small. Our results indicate that structures like transitional woodland-shrubs and pastures, together with other potential influencing factors like local agricultural practices, low hunting pressure, diverse natural and anthropogenic food sources, could have benefited the settlement of golden jackals in the northern lowlands of Bosnia and Herzegovina.

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Salinity and freshwater discharge determine rotifer distribution at the Mossoró River Estuary (Semiarid Region of Brazil)

Brazilian Journal of Biology ◽

10.1590/s1519-69842010000300011 ◽

2010 ◽

Vol 70 (3) ◽

pp. 551-557 ◽

Cited By ~ 11

Author(s):

AMA. Medeiros ◽

JEL. Barbosa ◽

PR. Medeiros ◽

RM. Rocha ◽

LF. Silva

Keyword(s):

Species Richness ◽

Rainy Season ◽

Salinity Gradient ◽

River Estuary ◽

Positive Influence ◽

Freshwater Discharge ◽

The Other ◽

Semiarid Region ◽

Inverse Estuary ◽

Species Richness And Abundance

The present study aimed at evaluating differences in rotifer distribution in three estuarine zones in an inverse estuary located in the Semiarid Region of Brazil. Zones were chosen based on their proximity to the ocean and river border as a means of reflecting a horizontal salinity gradient. High freshwater discharge during the rainy season was the major determinant of rotifer composition. On the other hand, due to higher salinity values during the dry season, very low values of species richness and abundance were observed in all zones. Therefore, the study highlights the constraints of salinity and the positive influence of seasonality and river proximity on rotifer species in a semiarid estuarine environment.

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