Results 21 to 30 of about 38,262 (209)

High-Resolution Acoustic Cameras Provide Direct and Efficient Assessments of Large Demersal Fish Populations in Extremely Turbid Waters

Applied Sciences, 2021
Monitoring fish species populations in very turbid environments is challenging. Acoustic cameras allow work in very poor visibility but are often deployed as a fixed observation point, limiting the scope of the survey. A BlueView P900-130 acoustic camera
Céline Artero, Simon Marchetti, Eric Bauer, Christophe Viala, Claire Noël, Christopher C. Koenig, Rachel Berzins, Luis Lampert   +7 more
doaj   +1 more source

Feeding Habit-Specific Heavy Metal Bioaccumulation and Health Risk Assessment of Fish in a Tropical Reservoir in Southern China

Fishes, 2023
Dietary uptake is well known as the predominant pathway of heavy metal bioaccumulation in organisms. Our study used a typical tropical reservoir and fish as a modeling system to test the hypothesis that feeding habits and living habitats significantly ...
Di Wu, Hao Feng, Ying Zou, Juan Xiao, Pengfei Zhang, Yuxiang Ji, Sovan Lek, Zhiqiang Guo, Qiongyao Fu   +8 more
doaj   +1 more source

Trophic redundancy in benthic fish food webs increases with scarcity of prey items, in the Southern Baltic Sea

Frontiers in Marine Science, 2023
Bottom trawling is one of the main pressures on benthic ecosystems, directly impacting the targeted species and physically disturbing the seabed and the benthic invertebrate communities, in turn indirectly impacting benthivorous fish and the entire ...
Camille de la Vega, Martin Paar, Linda Köhler, Linda Köhler, Christian von Dorrien, Michael Kriegl, Michael Kriegl, Michael Kriegl, Daniel Oesterwind, Hendrik Schubert   +9 more
doaj   +1 more source

Demersal Fish Assemblages in NE Atlantic Seagrass and Kelp

Diversity, 2020
Global fisheries are in decline, calling for urgent evidence-based action. One such action is the identification and protection of fishery-associated habitats such as seagrass meadows and kelp forests, both of which have suffered long-term loss and ...
Evie Furness, Richard K.F. Unsworth
doaj   +1 more source

Beyond connecting the dots: A multi-scale, multi-resolution approach to marine habitat mapping

Ecological Indicators, 2021
Conflicts of interests between economic and nature conservation stakeholders are increasingly common in coastal seas, inducing a growing need for evidence-based marine spatial planning.
Karin J. van der Reijden, Laura L. Govers, Leo Koop, Johan H. Damveld, Peter M.J. Herman, Sebastiaan Mestdagh, Gerjan Piet, Adriaan D. Rijnsdorp, Grete E. Dinesen, Mirjam Snellen, Han Olff   +10 more
doaj   +1 more source

Endogenous Fishing Mortalities: a State-Space Bioeconomic Model [PDF]

, 2017
A methodology that endogenously determines catchability functions that link fi shing mortality with contemporaneous stock abundance is presented. We consider a stochastic age-structured model for a fishery composed by a number of fi shing units ...
Da Rocha, José María, García-Cutrín, Javier, Gutiérrez Huerta, María José, Jardim, Ernesto   +3 more
core   +4 more sources

Distribusi Target Strength Ikan Demersal Melalui Pengukuran Akustik Secara In-Situ Di Perairan Kahyapu Pulau Enggano Kabupaten Bengkulu Utara

Jurnal Kelautan Tropis
Kahyapu Waters is one of the potential waters for demersal fishing in Enggano Island. Demersal fish resources in Kahyapu Waters if exploited optimally can provide sustainable benefits for local fishermen.
Deddy Bakhtiar, Yordan A Ompusunggu, Ari Anggoro, Supiyati Supiyati   +3 more
doaj   +1 more source

Use of remotely-derived bathymetry for modelling biomass in marine environments [PDF]

, 2013
The paper presents results on the influence of geometric attributes of satellite-derived raster bathymetric data, namely the General Bathymetric Charts of the Oceans, on spatial statistical modelling of marine biomass. In the initial experiment, both the
Godbold, Jasmin A., Niedzielski, Tomasz, Priede, Imants G., Spallek, Waldemar A., Wieczorek, Małgorzata M.   +4 more
core   +2 more sources

Isotopic profile and mercury concentration in fish of the lower portion of the rio Paraíba do Sul watershed, southeastern Brazil

Neotropical Ichthyology
The aim of this study was to evaluate the isotopic profile and mercury (Hg) concentrations in fish (carnivores, omnivores and detritivores) in the lower portion of the rio Paraíba do Sul watershed, southeastern Brazil.
Adélia R. M. Rocha, Ana Paula M. Di Beneditto, Inácio A. Pestana, Cristina Maria M. de Souza   +3 more
doaj   +1 more source

Predicting the effect of seine rope layout pattern and haul-in procedure on the effectiveness of demersal seine fishing: A Computer simulation-based approach.

PLoS ONE, 2017
Demersal Seining is an active fishing method applying two long seine ropes and a seine net. Demersal seining relies on fish responding to the seine rope as it moves during the fishing process.
Nina A H Madsen, Karl G Aarsæther, Bent Herrmann   +2 more
doaj   +1 more source