Results 31 to 40 of about 377 (107)

GLM standardised CPUE abundance indices for orange roughy off Namibia from 1994 now updated to include records up to 2005 [PDF]

, 2016
GLM analyses are used to standardise the CPUE data for Namibian orange roughy in a manner that deals with tows that record zero catch of orange roughy. The possibility of there being a “learning” period of lower CPUE for a new vessel when it enters the ...
Brandão, Anabela, Butterworth, Doug S
core  

What to Expect After a Commercial Fishery Ban? Long Term Fish Size and Biomass Trends in Two Productive Water Bodies With Contrasting Management Regimes

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 2, February 2026.
ABSTRACT Commercial fishing is often assumed to have greater impacts than recreational fishing, and many fisheries assessments overlook the latter. Yet, numerous coastal and freshwater fish populations are subject to both fishing types and environmental pressures, all influencing biomass, body size and community structure and making management outcomes
Eglė Jakubavičiūtė, Žilvinas Pūtys, Linas Ložys, Asta Audzijonyte   +3 more
wiley   +1 more source

Updated GLM standardised CPUE abundance indices for orange roughy for known aggregations off Namibia from 1994 to 2006 [PDF]

, 2016
GLM analyses are used to standardise the CPUE data for Namibian orange roughy in a manner that deals with tows that record zero catch of orange roughy. The possibility of there being a “learning” period of lower CPUE for a new vessel when it enters the ...
Brandão, Anabela, Butterworth, Doug S
core  

Desert Diamond CPUE series to be used in updating the horse mackerel assessment in 2016 [PDF]

, 2021
Table 1 reports the Standardised CPUE for the period 2003-2014 (the agreed delta log normal series which takes area effects into account) – column a. The nominal Desert Diamond CPUE series (column e) is also available, where data for the Jan-Mar period ...
Doug Butterworth (10005953), Susan Holloway (9998819)   +1 more
core   +1 more source

Impact of the Highly Invasive Signal Crayfish (Pacifastacus leniusculus) on Freshwater Macroinvertebrate Communities

Freshwater Biology, Volume 71, Issue 2, February 2026.
ABSTRACT Invasive non‐native species threaten freshwater ecosystems, disrupting the functioning and structure of the food chain and potentially leading to biodiversity loss. As omnivores, crayfish can modify their environment, directly affecting organisms such as macroinvertebrates.
António Barbosa Nogueira, Bruno Oliveira, Janeide Padilha, Simone Varandas, Amílcar Teixeira, Ronaldo Sousa   +5 more
wiley   +1 more source

Evidence for Asian Swamp Eels as an Emerging Threat to Everglades Amphibians

Freshwater Biology, Volume 71, Issue 1, January 2026.
ABSTRACT As amphibian populations around the globe continue to shrink and suffer enigmatic declines, it is critical to use systematic studies to isolate causes and provide management targets for key environmental variables. We sampled the amphibian community at 30 sites dispersed across four large regions of the Everglades (FL, USA).
Hunter J. Howell, Sierra N. Thomasset, Leila M. Thompson, Mark I. Cook, Eric A. Cline, Nathan J. Dorn, Christopher A. Searcy   +6 more
wiley   +1 more source

Updated (and rescaled) Tristan GLM-standardised lobster CPUE to take account of data for the 2018 season [PDF]

, 2018
The Powerboat CPUE series for Tristan was last updated in 2018 (MARAM/Tristan/2018/MAY/05) and took data for the 1994-20171 seasons into account. This GLM incorporated a method whereby the full GLM for Tristan can be rescaled to take into account the ...
Johnston, Susan, Butterworth, Doug S
core   +1 more source

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

Journal of Fish Biology, Volume 108, Issue 1, Page 179-189, January 2026.
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

Temporal Trends in Relative Abundance of Billfish and Other Large Pelagic Fish in Recreational Fisheries of Costa Rica

Fisheries Management and Ecology, Volume 32, Issue 6, Page 499-515, December 2025.
ABSTRACT Fishing tourism of sailfish and accompanying species represents a significant source of income for Costa Rica. However, little information is available regarding trends in the availability of these species to recreational fleets. We estimated temporal trends in catch per unit effort (CPUE) for sailfish, marlins, yellowfin tuna, and mahi mahi ...
Johel Chaves‐Campos, Marina Marrari, Moisés Mug Villanueva   +2 more
wiley   +1 more source

Preliminary results from a GLM standardised CPUE series for the South Coast midwater horse mackerel fishery [PDF]

, 2016
This paper provides results for a preliminary GLM standardisation analysis of the CPUE data for the South African horse mackerel (Trachurus trachurus capensis) midwater fishery from commercial trawl data.
Butterworth, Doug S, Furman, Liam B
core