Results 21 to 30 of about 50,210 (140)

Avian Diversity and Abundance of Taunsa Barrage Ramsar Site in Punjab, Pakistan

Journal of Zoological Systematics and Evolutionary Research, Volume 2022, Issue 1, 2022., 2022
The study of avian species diversity and abundance at the Taunsa Barrage Ramsar site was carried out from September 2019 to March 2020. Taunsa Barrage is an important wetland for international and local migratory birds, including waterfowls, waders, and long‐distance migrant avifauna.
Muhammad Zeshan Haider, Shakeel Ahmed, Nuzhat Sial, Gulnaz Afzal, Ayesha Riaz, Akhtar Rasool Asif, Tahir Mehmood, Abdul Rasheed, Sayyed Aun Muhammad, Hafiz Ishfaq Ahmad, Amjad Bashir   +10 more
wiley   +1 more source

The Human Dimensions of Recreational Anglers Targeting Freshwater Species in Coastal Ecosystems, with Implications for Management

North American Journal of Fisheries Management, Volume 41, Issue 5, Page 1572-1590, October 2021., 2021
Abstract Little is known about whether brackish coastal ecosystems attract specific angler types that are characterized by site‐specific preferences and behaviors while targeting freshwater fishes living in a low‐salinity environment. Using the lagoon (“Bodden”) fisheries in northeastern Germany, we compared the human dimensions among anglers fishing ...
Dieter Koemle, Ben Beardmore, Malte Dorow, Robert Arlinghaus   +3 more
wiley   +1 more source

Environmental DNA reveals the temporal and spatial extent of spawning migrations of European shad in a highly fragmented river basin

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 31, Issue 8, Page 2029-2040, August 2021., 2021
Abstract Artificial barriers on lowland rivers impede the spawning migrations of anadromous fishes, preventing access to historical spawning areas. In the cryptic European shads Alosa alosa and Alosa fallax (‘shad’ hereafter), this has resulted in population declines across their range. Conservation programmes aim to facilitate the passage of migrators
Caterina Maria Antognazza, J. Robert Britton, Vanessa De Santis, Konstantina Kolia, Ossi A. Turunen, Peter Davies, Laura Allen, Emilie A. Hardouin, Charles Crundwell, Demetra Andreou   +9 more
wiley   +1 more source

Skeletal elements of the penguin eye and their functional and phylogenetic implications (Aves: Sphenisciformes: Spheniscidae)

Journal of Morphology, Volume 282, Issue 6, Page 874-886, June 2021., 2021
Micro‐CT of the scleral ring of a Snares crested penguin (Eudyptes robustus) surrounding a gentoo penguin (Pygoscelis papua) skull. In penguins the scleral ring contains 10–17 overlapping ossicles, maintaining the shape of the eye and providing an attachment for the rectus muscles. Its position within the skull suggests a role in globe protection also.
Peter W. Hadden, Dane A. Gerneke, Charles N. J. McGhee, Jie Zhang   +3 more
wiley   +1 more source

Cormorant predation effects on fish populations: A global meta‐analysis

Fish and Fisheries, Volume 22, Issue 3, Page 605-622, May 2021., 2021
Abstract This paper provides the results from the first meta‐analysis to examine the impact of cormorant (Phalacrocoracidae) predation on fish. It is based on a systematic search of literature, covering studies using significance‐based hypotheses tests on the relation between fish parameters and cormorant abundance.
Maria K. Ovegård, Niels Jepsen, Mikaela Bergenius Nord, Erik Petersson   +3 more
wiley   +1 more source

Northern range shift may be due to increased competition induced by protection of species rather than to climate change alone. [PDF]

Ecol Evol, 2018
The protection of the species may induce an increase in population that generates increasing competition for optimal feeding areas, which may induce a similar or even a higher northern range shift than the climate change does, or induce an opposite shift with differences between breeding and wintering populations.
Marion L, Bergerot B.
europepmc   +2 more sources

A REVIEW OF THE IMPACT OF GREAT CORMORANT (Phalacrocorax carbo sinensis) ON THE FISH STOCK [PDF]

, 2014
Svrha ovog pregleda je prikazati istraživanja koja govore o utjecaju velikog vranca na riblji stok i akvakulturu kako bi se unaprijedila saznanja ovog problema.
Marina Piria, Piria, Marina
core   +1 more source

Phalacrocorax carbo

, 2022
Phalacrocorax carbo (Linnaeus, 1758) LITERATURE. — Dowsett (1993); Weesie (1996); Balanca et al. (2007); Dowsett et al. (2013). STATUS. — Excluded. REMARK.
Hema, Emmanuel M., Dimobe, Kangbéni, Pavia, Marco, Belemsobgo, Aristide, Silvano, Fabrizio, Boano, Giovanni, Belemsobgo, Urbain   +6 more
core   +1 more source

Cypriniform fish in running waters reduce hyporheic oxygen depletion in a eutrophic river

Freshwater Biology, Volume 65, Issue 9, Page 1518-1528, September 2020., 2020
Abstract The hyporheic zone is an important habitat for benthic invertebrates and early‐developmental stages of gravel spawning fish. However, the eutrophication of running waters and, in turn, the excessive periphyton biomass leads to its biological clogging.
Dirk Hübner, Madlen Gerke, Roman Fricke, Jörg Schneider, Carola Winkelmann   +4 more
wiley   +1 more source

Roosting Colony of Cormorants (Phalacrocorax Carbo Sinensis L.) as a Source of Nutrients for the Lake

Limnological Review, 2015
Since 2005, great cormorants have been observed on the Lake Góreckie (Wielkopolski National Park) shoreline. The population of these birds occurring within the lake has gradually increased. In autumn 2008, more than 100 individuals were observed.
Piotr Klimaszyk, Tomasz Joniak, Piotr Rzymski   +2 more
doaj   +1 more source