Results 91 to 100 of about 10,222 (244)

An index number decomposition of profit change in two Australian fishing sectors [PDF]

Changes in net economic returns in a fishery over time can provide some indication of which direction a fishery’s economic performance is moving. However, without information on the causes of those movements, it is difficult to say if a fishery is moving
Vieria, Simon
core   +1 more source

The Global Threat to Manta and Mobula Rays [PDF]

, 2010
Manta and mobula rays span the tropics of the world and are among the most captivating and charismatic of marine species. However, their survival is severely threatened by growing fisheries pressure driven by demand for the gill rakers that the animals ...
Shawn Heinrichs
core  

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

Unfinished Business: a Review of the Implementation of the Provisions of United Nations General Assembly Resolutions 61/105 and 64/72, Related to the Management of Bottom Fisheries in Areas Beyond National Jurisdiction [PDF]

, 2011
In 2006 the General Assembly adopted resolution 61/105, based on a compromise proposal offered by deep-sea fishing nations, which committed States and regional fisheries management organisations [RFMOs] to take specific measures to protect vulnerable ...
A. Kavanagh, B. Weeber, D.E.J. Currie, G. Roberts, J. Ardron, K. Sack, L. Speer, M. Gianni, M. Gibson, S. Fuller, S. Owen   +10 more
core  

Feeding ecology of an Amazonian electric knifefish under altered flood‐pulse dynamics caused by hydroelectric damming

Journal of Fish Biology, EarlyView.
Abstract This study evaluated the effects of the controlled flood pulse on diet composition, trophic niche breadth and feeding intensity of Archolaemus janeae, an electric knifefish species with a restricted distribution in the Amazon Basin. Monthly samples were collected from December 2020 to November 2021 in the Volta Grande stretch of the Xingu ...
Ana F. V. N. M. Costa, Antonio A. Jardim Jr, Erival G. Prata, Rafael R. Gusmão, Angelo J. Faro Júnior, Alan S. Fonseca, Danielly T. Hashiguti, Luciano F. A. Montag, Tiago M. S. Freitas   +8 more
wiley   +1 more source

Pigmentation disorders in three specimens of spiny dogfish, Squalus acanthias Linnaeus, 1758, from the Gulf of Venice, northern Adriatic Sea

Journal of Fish Biology, EarlyView.
Abstract This study reports three cases of pigmentation disorders in Squalus acanthias from the Gulf of Venice. Two specimens exhibited spotless phenotypes, whereas one exhibited hypermelanism. Morphological assessments were conducted for two individuals, alongside genetic analysis of mitochondrial genes to determine phylogeographic relationships. Both
Bernardi Jacopo, Finotto Licia, Catalano Giusy, Crobe Valentina, Cariani Alessia, Ferrari Alice   +5 more
wiley   +1 more source

WILLINGNESS TO PARTICIPATE AND BIDS IN A FISHING VESSEL BUYOUT PROGRAM: A CASE STUDY OF NEW ENGLAND GROUNDFISH [PDF]

An experimental fishing vessel buyout program was initiated in 1995 to remove vessels from the Northeast United States groundfish fishery. Information provided by the applicants to this program was used to evaluate the likely participation and potential ...
Kitts, Andrew, Robertson, John, Thunberg, Eric M.   +2 more
core   +1 more source

A cost benefit analysis of three gillnet fisheries in Santa Catarina, Brazil: contributing to fisheries management decisions

Latin American Journal of Aquatic Research, 2016
This cost-benefit analysis of three industrial bottom gillnet fisheries that operated in SE/S Brazil during 2009, had a double purpose: to determine the economic and financial performance of the average gillnet vessel in the coastal whitemouth croaker ( Micropogonias furnieri ), the gulf hake ( Urophycis mystacea ) and monkfish ( Lophius gastrophysus )
Pio, Vanessa Mafra, González-Poblete, Exequiel, Pezzuto, Paulo Ricardo, Wahrlich, Roberto   +3 more
openaire   +2 more sources

Potential Trophic Competition Between the European Perch Perca fluviatilis and Pikeperch Sander lucioperca

International Review of Hydrobiology, Volume 111, Issue 1, June 2026.
ABSTRACT The European perch Perca fluviatilis and pikeperch Sander lucioperca can co‐occur, potentially competing for food resources. However, few studies have addressed the potential feeding competition between these species. We used carbon and nitrogen stable isotope analysis to assess the potential trophic competition between these species in two ...
Mathieu Toutain, Phillip J. Haubrock, Nadège Belouard, Irmak Kurtul, Sadi Aksu, Özgür Emiroglu, Ali Serhan Tarkan, Paride Balzani   +7 more
wiley   +1 more source

Measuring management success for protected species: Looking beyond biological outcomes

Frontiers in Marine Science, 2016
The complexity of the ocean ecosystem, including the human component, is such that a single fishery may require multiple policy instruments to support recovery and conservation of protected species, in addition to those for fisheries management.
Kathryn D Bisack, Gisele M. Magnusson
doaj   +1 more source