Results 101 to 110 of about 20,395 (262)

Long‐term shifts in pikeperch, Sander lucioperca, diet composition in a changing reservoir

Journal of Fish Biology, EarlyView.
Abstract As a significant piscivorous predator, the pikeperch (Sander lucioperca) plays a critical role in regulating aquatic ecosystems. Understanding its size‐related feeding behaviour is thus vital for assessing its impact. To evaluate its role in the ecosystem, stomach content analysis provides useful insights into predator–prey dynamics.
Karlos Ribeiro de Moraes, Million Tesfaye, Daniel Bartoň, Petr Blabolil, Jakub Brabec, Marek Brabec, Vladislav Draštík, Marie Prchalová, Josef Matěna, Milan Muška, Michal Tušer, Tomáš Jůza, Luboš Kočvara, Zuzana Sajdlová, Katerina Soukalová, Allan T. Souza, Marek Šmejkal, Radka Symonová, Milan Říha, Mojmír Vašek, Jan Kubečka   +20 more
wiley   +1 more source

Gillnet colour affects catch efficiency in pearlspot (Etroplus suratensis) tropical estuary fishery

Aquaculture and Fisheries
Gillnets are one of the most commonly used fishing gears in both marine and inland waters. Different colour filament nettings are often used in gillnets. However, the effect of gillnet colour on catch efficiency is unclear for most fisheries.
Kristine Cerbule, V.R. Madhu, Salini Mohanan, Bent Herrmann   +3 more
doaj   +1 more source

Kelayakan Finansial Pengembangan USAha Perikanan Pelagis Kecil Di Perairan Utara Nanggroe Aceh Darussalam (Financial Elegibility to Development of Small Pelagic Fishing in North Territorial Water of Nanggro Aceh Darussalam) [PDF]

, 2011
Management of small pelagic fishing unit not yet used better in north territorial water of NAD, especially after tsunami. This research aim to analyze financial elegibility of small pelagic fishing unit. The method of research are analysing of invesment,
Baskoro, M. S. (Mulyono), Raihanah, R. (Raihanah), Sutisna, D. H. (Dedy), Wisudo, S. H. (Sugeng)   +3 more
core  

Linking rivers, mixing faunas: How artificial connectivity between the Middle and Upper Paraná River basins shapes fish diversity in a tributary of the Itaipu Reservoir, Brazil

Journal of Fish Biology, EarlyView.
Abstract This work aimed to investigate the distribution and occurrence of fish species along the São Francisco Falso Braço Norte (SFFBN) River basin, a tributary of the Middle Paraná River basin now artificially connected to the Upper Paraná ecoregion, to evaluate how such connectivity may affect the biogeographic distribution and regional composition
Lucas E. P. Kampfert, João C. Maicrovicz, Daniel R. Blanco, Denise Lange, Carla S. Pavanelli, Heleno Brandão   +5 more
wiley   +1 more source

Plasticity in the reproductive biology of Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake following lake trout Salvelinus namaycush invasion

Journal of Fish Biology, EarlyView.
Abstract Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake are the focus of intensive conservation efforts due to the threat of predation by invasive lake trout Salvelinus namaycush. Suppression gillnetting has reduced the abundance of predatory lake trout, and the Yellowstone cutthroat trout population is recovering ...
Michelle A. Briggs, Molly A. H. Webb, Christopher S. Guy, Todd M. Koel   +3 more
wiley   +1 more source

The United States requires effective federal policy to reduce marine plastic pollution

Conservation Science and Practice, 2019
The amount of plastic entering the ocean is expected to increase by an order of magnitude by 2025. Marine plastic pollution threatens biodiversity through entanglement, ingestion, and chemical exposure.
Autumn R. Iverson
doaj   +1 more source

Studi Mengenai Proses Tertangkapnya Dan Tingkah Laku Ikan Terhadap Gillnet Millennium Di Perairan Bondet, Cirebon (Studies on Capture Process and Fish Behavior Towards Millennium Gillnet in Bondet Waters, Cirebon) [PDF]

, 2012
The millennium gillnet was recently adopted by Cirebon fishermen. Its use has been spread to other areas. Research on this type of gear is rare. The objectives of this research were: to investigate the effects of transparency on the fish behavior towards
Haluan, C. C. (Carolina), Purbayanto, A. (Ari), Sondita, M. F. (M)   +2 more
core   +1 more source

Age and growth of the endemic groovebelly stingray (Dasyatis hypostigma), a heavily exploited batoid in the Brazilian Meridional Margin (21–34° S)

Journal of Fish Biology, EarlyView.
Abstract Life‐history data are often lacking for exploited elasmobranchs, jeopardizing proper management and conservation measures for this vulnerable group. Herein, we provided age and growth estimates for the groovebelly stingray (Dasyatis hypostigma), a medium‐sized, heavily exploited batoid endemic to the southwestern Atlantic Ocean.
Giovanni Arlan Torres, Rodrigo Silvestre Martins, Luciano Gomes Fischer, Luís Gustavo Cardoso, Rodrigo Sant'Ana, Bruno Mourato   +5 more
wiley   +1 more source

ANALISIS HASIL TANGKAPAN RAJUNGAN (PORTUNUS PELAGICUS) SEBAGAI TARGET UTAMA DAN KOMPOSISI BY-CATCH ALAT TANGKAP GILLNET DI PERAIRAN PANTAI PURIRANO, SULAWESI TENGGARA

JURNAL BIOLOGI TROPIS, 2019
Abstrak : Penangkapan rajungan di perairan Pantai Purirano umumnya dilakukan oleh usaha perikanan rajungan skala kecil, yang menggunakan jaring insang (gillnet).
Normayanti Thamrin Mardhan, La Sara, Asriyana Asriyana   +2 more
semanticscholar   +1 more source

Return migration to fresh water and overwintering locations used by sympatric anadromous populations of Arctic char (Salvelinus alpinus) and Dolly Varden (Salvelinus malma malma)

Journal of Fish Biology, EarlyView.
Abstract Anadromous Arctic char (Salvelinus alpinus) and northern form Dolly Varden (Salvelinus malma malma) are highly valued by Indigenous communities in northern Canada. Rapid, ongoing environmental changes are affecting populations of both of these iteroparous species, and understanding variability in life‐history tactics is essential for ...
Rosie Smith, Eric Hitkolok, Amanda Dumond, Simon DePasquale, Hannah Thibault, Spencer Weinstein, Paul Craig, Tracey Loewen, Heidi Swanson   +8 more
wiley   +1 more source