A5073654378- Marine and fisheries research
- Fish Ecology and Management Studies
- Ichthyology and Marine Biology
- Coral and Marine Ecosystems Studies
- Fish Biology and Ecology Studies
- Marine Bivalve and Aquaculture Studies
- Identification and Quantification in Food
- Marine animal studies overview
- Turtle Biology and Conservation
- Isotope Analysis in Ecology
- Avian ecology and behavior
- Coastal and Marine Management
- Aquaculture Nutrition and Growth
- Financial Risk and Volatility Modeling
- Cruise Tourism Development and Management
- Amphibian and Reptile Biology
- Advanced Statistical Methods and Models
- Landslides and related hazards
- Survey Sampling and Estimation Techniques
- Statistical Methods and Inference
- Fish biology, ecology, and behavior
- Survey Methodology and Nonresponse
- Wildlife Ecology and Conservation
- Genetic diversity and population structure
- Water Quality and Resources Studies
Tecnalia
2010-2025
AZTI
2011-2025
Marine Technology Unit
2014-2022
Instituto de Investigacións Mariñas
2013-2020
Euskadiko Parke Teknologikoa
2018-2019
Mondragon University
2018
Diputación Foral de Gipuzkoa
2018
Abstract Marine recreational fishing ( MRF ) is a high‐participation activity with large economic value and social benefits globally, it impacts on some fish stocks. Although reporting catches European Union legislative requirement, estimates are only available for countries. Here, data numbers of fishers, participation rates, days fished, expenditures, two widely targeted species were synthesized to provide placed in the global context. Uncertainty assessment was not possible due incomplete...
Abstract Since the beginning of 21st century, electronic monitoring (EM) has emerged as a cost‐efficient supplement to existing catch programmes in fisheries. An EM system consists various activity sensors and cameras positioned on vessels remotely record fishing catches. The first objective this review was describe state play fisheries worldwide present insights gained technology based 100 trials 12 fully implemented programmes. Despite its advantages, global use for monitoring, progresses...
Bycatch of several groups species and their characteristics are presented for the period 2003 to 2007 European purse seine tuna fishery operating in Atlantic Ocean. Data were collected through French Spanish observer programmes represented a total 27 trips corresponding 2.9% coverage. is defined as non-targeted small or damaged target species. composition, main length, sex ratio fate most common first. Stratified ratios relative landings major commercial tunas then used estimate bycatch;...
Among the various challenges facing tropical tuna purse seine fleet are need to reduce fuel consumption and carbon footprint, as well minimising bycatch of vulnerable species. Tools designed for forecasting optimum fishing grounds can contribute adapting changes in fish distribution due climate change, by identifying location new suitable grounds, thus reducing search time. While information about high probability find species could result a reduction. The present study aims at contributing...
Ecological risk assessment is a useful methodology for assisting the management of fisheries from an ecosystem perspective. Atlantic tuna fisheries, managed by International Commission Conservation Tunas (ICCAT), are economically important and interact with several bycatch species. In spite these interactions, no comprehensive ecological has been conducted species caught in ICCAT fisheries. this paper, we followed two stage approach objective assessing relative being negatively impacted An...
This is the first study that estimates sea bass recreational catches in Basque Country including fishers from shore, boat, and spearfishing. Three different offsite survey methods were used (e-mail, phone, post) their performance was compared. Estimates depending on method used. Total catch for shore fishing 129, 156, 351 tonnes e-mail, post surveys, respectively. For boat fishing, varied 5 (phone) to 13 (e-mail post). spearfishing, only e-mail surveys performed total estimated tonnes....
By-catch species from tropical tuna purse seine fishery have been affected by pressures since the last century; however, habitat distribution and climate change impacts on these are poorly known. With objective of predicting potential suitable for a shark (Carcharhinus falciformis) teleost (Canthidermis maculata) in Indian, Atlantic Eastern Pacific Oceans, MaxEnt model (SDM) was developed using data collected observers seiners. The relative percentage contribution some environmental...
Fishery monitoring programs are essential for effective management of marine resources, as they provide scientists and managers with the necessary data both preparation scientific advice fisheries control surveillance. The is generally done by human observers, in port onboard, a high cost involved. Consequently, some Regional Fisheries Management Organizations (RFMO) opting electronic (EM) an alternative or complement to observers certain fisheries. This case tropical tuna purse seine...
The difficulty of ensuring adequate statistical coverage whole fleets is a challenge for the implementation observer programmes and may reduce usefulness data they obtain management purposes. This makes it necessary to find cost-effective alternatives. Electronic monitoring (EM) systems are being used in some fisheries as an alternative or complement human observers. objective this study was test use reliability EM on tropical tuna purse-seine fishery. To achieve objective, seven trips purse...
This study examined diversity and habitat characteristics for bycatch assemblages in two different types of fishing (drifting fish aggregating devices sets made on school tunas) the eastern Pacific Ocean (20ºS-30ºN 70º-150ºW) between 2005 2011 using biodiversity metrics Generalized Additive Models. Bycatch information was based data collected by onboard observers covering more than 80% purse seine trips. Our results suggest that differ depending mode. Thus, mostly explained area set type;...
The European Parliament is concerned about the lack of information on relevance nine million Europeans engaged in marine recreational fishing (MRF), committing Member States to encourage environmental and socioeconomic sustainability sector. objective this paper provide recommendations guide research actions management policies, based case Spain, a key country because its complex administrative regimen intensive use coasts, including 900 000 fishers. A review state knowledge was performed...
Drifting Fish Aggregating Devices (dFADs) are currently made with synthetic and non-biodegradable materials contributing to the increase of marine litter other potential ecosystem impacts. Tuna RFMOs have promoted research progressive replacement existing FADs by non-entangling biodegradable (bioFADs). Here, we present results first large-scale FAD project in Indian Ocean develop implement use dFADs. The bioFAD tested were fully without netting minimizing completely risk entanglement. Tested...
The European Union Common Fisheries Policy has established a discard ban, which states that fish below reference size cannot be sold directly for human consumption. In fishing effort-regulated fishery, the ban can result in extra handling, storing and landing costs. an output-regulated this policy might also limit effort levels as all catches count against quota. both cases, regulation reduce economic performance of companies, even single-species fisheries. A possible solution is to increase...
Abstract The impact of human activities such as fishing has been identified a main factor in diversity loss the open ocean. This paper studies patterns and environmental characteristics bycatch assemblages Fish Aggregating Devices (FADs) Free School sets (sets made on schools tuna) from tropical tuna purse seine fishery eastern Atlantic Ocean (35°W–15°E 20°N–15°S). Data were collected scientific observer programmes carried out between 2003 2011 board Spanish French fleets. results showed...