Antonello Sala

Antonello Sala
Italian National Research Council | CNR · Institute of Marine Biological Resources and Biotechnologies (CNR-IRBIM)

Mathematical, Physical and Natural Sciences

About

196
Publications
79,395
Reads
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2,950
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Introduction
Responsible scientist in several European and National Research Projects with a grant captures since 2000 exceeding €5M. Expert in physical and biological impacts produced in the marine environment by human activities, efficiency and selectivity of fishing gear, energy saving, performance of fishing gears using underwater instrumentation, fishing gear design and modelling, netting material properties. Work experience 1990-onwards.Scientist at the Italian National Research Council (CNR), Institute of Marine Sciences (ISMAR), Ancona (Italy) 2017-present. Food and Agriculture Organization of the United Nations (FAO), Riyadh (Saudi Arabia). Fishing operations and technology expert 2014-present. External expert at the European Fisheries Control Agency (EFCA), Vigo (Spain)
Additional affiliations
June 2010 - June 2010
Mediterranean Agronomic Institute of Zaragoza (IAMZ)
Position
  • Lecturer
Description
  • Technical advances in fishing gear for sustainable management”
February 2008 - June 2008
Albanian Ministry of Fishery
Position
  • Lecturer
Description
  • Quality systems and certification: an integrated approach for the improvement of fishing products
February 1990 - present
Italian National Research Council
Position
  • Researcher

Publications

Publications (196)
Article
A new fuel consumption monitoring system was set up for research purpose in order to evaluate the energy performance of fishing vessels under different operating conditions. The system has been tested on two semi-pelagic pair trawlers in the Adriatic Sea with an engine power of around 900kW, and with length overall of around 30m. Both vessels work...
Article
A new door has been designed to reduce hydrodynamic drag coefficient and increase spread of door commonly used in the Mediterranean commercial demersal trawl fisheries. Flume tank testing and engineering sea trials provide data which allow us to illustrate the performance and impact on the seabed of an existing door and a new door design. In the fl...
Article
We investigated the effect of twine thickness on the codend selectivity of Mediterranean bottom trawls. Two codends having meshes with the same opening (ca. 44 mm) but different twine thicknesses (Light PA: R3644tex, Ø 2.38 mm and Heavy PA: R5312tex, Ø 2.89 mm) were fished daily and alternately on the same trawl.Selectivity was measured using the c...
Article
The Pomo pit area is both the main Adriatic nursery area for European hake (Merluccius merluccius) and Norway lobster (Nephrops norvegicus) and an important trawling ground for the Adriatic trawl fleet. The current paper is not only restricted to the escapement of Norway lobster but also takes note of the associated white fish community (European h...
Article
Mediterranean demersal trawl fisheries traditionally operate using small diamond-shape meshes in the codend, which tend to retain almost all animals. We investigated the effect of mesh configuration on the size selectivity of nine species (the scaldfish Arnoglossus laterna, the broad-tail shortfin squid Illex coindettii, the European hake Merlucciu...
Article
Full-text available
The combustion of fossil fuels is considered a major cause of climate change, which is why the reduction of emissions has become a key goal of the Paris climate agreement. Coherent monitoring of the energy profile of fishing vessels through an energy audit can effectively identify sources of inefficiency, allowing for the deployment of well-informe...
Article
Full-text available
Marine mammal vocal elements have been investigated for decades to assess whether they correlate with stress levels or stress indicators. Due to their acoustic plasticity, the interpretation of dolphins’ acoustic signals of has been studied most extensively. This work describes the acoustic parameters detected in whistle spectral contours, collecte...
Article
Full-text available
In the Mediterranean Sea, where bottom trawling for demersal species is the most important fishery in terms of landings, around 75% of the assessed fish stocks are overfished. Its status as one of the world's most heavily exploited seas and the one subject to the highest trawling pressure has become a global concern. An extensive overview of bottom...
Technical Report
Full-text available
This publication is a Science for Policy report by the Joint Research Centre (JRC), the European Commission’s science and knowledge service. It aims to provide evidence-based scientific support to the European policymaking process. The scientific output expressed does not imply a policy position of the European Commission. Neither the European C...
Article
Escape, discard, and landing probability in multi-species Mediterranean bottom-trawl fishery. Commercial bycatch species and their exploitation pattern in the Mediterranean trawl fishery are little studied. The present work examines the overall size-selection pattern, both regarding the trawl in the sea and the fisher onboard the vessel, for seven...
Article
The management of multispecies fisheries, such as the Mediterranean bottom trawl fishery, is always a challenge. However, information on gear selectivity and discards has been studied separately so far. In this paper, the overall size-selection pattern by the trawl codend in the sea and by the fisher onboard the vessel is investigated for four comm...
Technical Report
Full-text available
ICES Working Group on Innovative Fishing Gear (WKING) seeks to prepare ICES advice on the progress that has been made, or impact arising from innovative gear within European waters. In order to prepare the report described in Article 31.1 of Regulation 2019/1241, the EU DG-MARE seeks ICES advice on the progress that has been made, or impact arising...
Article
Full-text available
The current legal codends used in Mediterranean bottom trawl fisheries are at high risk of retaining undersized individuals of several commercial fish species. This entails that codends alone are unable to provide the desired exploitation pattern. A simple technological measure that potentially can provide higher release efficiency of undersized fi...
Article
Full-text available
The Mediterranean Sea is a biodiversity hotspot where intense fishing pressure is associated with high bycatch rates of protected species (sea turtles and cetaceans) and top predators (sharks). Since the conservation of these species has become a priority, fishery scientists are faced with the challenge of reducing incidental catch, which entails h...
Article
Fishing is an energy-intensive economic activity. Research in several fields is conducted to improve the energy and environmental profile of fishing vessels. As regards the technical measures, the assessment of benefits is often hampered by boundary conditions that are difficult to quantify and side effects that are difficult to unravel. This study...
Article
Full-text available
Fishing pressure is often expressed in terms of a vessels physical attributes, like tonnage and engine power, while a common definition of fishing capacity identifies vessel size as a convenient proxy for the size of the gear used. Nevertheless, these definitions remain arguable, and the refinement of these fishing descriptors is increasingly being...
Article
Full-text available
The European Food and Nutrition Action Plan 2015–2020 encourages Member States to promote local a�ordable and healthy dietary initiatives to support a sustainable food system, particularly in schools and public institutions where advertising on eating behaviour and food preferences is needed. In Italy, the promotion of healthy and sustainable diets...
Article
Full-text available
Despite the fact that Mediterranean loggerhead turtles are listed as “Least Concern” by the International Union for the Conservation of Nature (IUCN), they are among the most threatened marine megafauna worldwide, because of fishery-related incidental captures. The northern central Adriatic Sea is one of the most overfished basins of the Mediterran...
Preprint
Full-text available
The Mediterranean Sea is a hotspot of biodiversity, but the high fishing pressure results in high bycatch rates of protected (sea turtles and cetaceans) and top predator species (sharks). The reduction of bycatch is challenging for fishery scientists, as conservation of these species has become a priority. Among the animals threatened by fishing ac...
Conference Paper
Energy consumption and GHG emissions are an emerging issue confronting the fishing industry. Currently 3 standards exist related to emission of GHG, ISO/TS 14067, a British standard PAS 2050–2:2012, and a Norwegian standard NS9418. The British standard contains requirements for the life cycle assessment GHG emissions, and it identifies various inpu...
Article
Small-scale shrimp trap fisheries, which have received very little attention in areas with limited potential for economic diversification, could offer a sustainable and socially beneficial option for profitable businesses in these regions. This study explores the effect of mesh size on selectivity of the commercially important narwal shrimp, Plesio...
Chapter
Full-text available
The collection of catch composition data during inspections at sea by EU Member States occurs under the framework of joint deployment plans (JDP). It is known as “the last haul” (LH) programme and has been a fundamental tool in allowing the estimation of discards and the derivation of indicators of compliance with the landing obligation (LO). Durin...
Poster
Full-text available
The northern central Adriatic Sea is the most heavily impacted basin in the Mediterranean Sea due to a variety of sources of anthropogenic pressure, mainly intense fishing activities, large urbanized and industrialized areas, and environmental pollution. Since 2006, an extensive monitoring programme of incidental catches of long-lived species like...
Article
Full-text available
Mediterranean trawl fisheries are characterized by a critical combination of high fishing effort and low size at first capture for most commercial species. In this study we tested the use of sorting grids installed on bottom trawl nets to minimize the catch of undersized deep-water rose shrimp (Parapenaeus longirostris, DPS) and European hake (Merl...
Article
Full-text available
Models to predict codend size selectivity for four major commercial species-European hake (Merluccius merluccius), Norway lobster (Nephrops norvegicus), deep-water rose shrimp (Parapenaeus longirostris), and Atlantic horse mackerel (Trachurus trachurus)-in Mediterranean bottom trawl fisheries were established based on data collected during fishing...
Article
Full-text available
Bottom trawlers land around 19 million tons of fish and invertebrates annually, almost one-quarter of wild marine landings. The extent of bottom trawling footprint (seabed area trawled at least once in a specified region and time period) is often contested but poorly described. We quantify footprints using high-resolution satellite vessel monitorin...
Article
Full-text available
Gear selectivity and discards are important issues related to fisheries management but separately modelled. This work examines for the first time the overall size-selection pattern on the total amount of individuals of a species entering the trawl codend. An innovative approach was used based on modelling the escapement through the codend in the se...
Article
The capture fishing sector causes direct and indirect impacts on benthic habitats and associated fauna and flora. Effectiveness of new mitigation measures depends on fishermen's perceptions; their acceptance of, and compliance to, those measures. Accordingly, by means of Advisory Councils (ACs), fisheries stakeholders are encouraged by the Common F...
Article
Two pelagic otterboards, previously tested in a wind tunnel, have been tested in a flume tank prior to their analysis in real working conditions in sea trials. This intermediate step aims at providing guidance for sea trial planning and a basis for otter board performance analysis from real campaign data. The doors were rigged in working-like condi...
Article
Fisheries involve an intensive use of European maritime regions according to the Common Fisheries Policy (CFP). The recent CFP reform has adopted an ecosystem-based approach to fisheries management that is characterised by enhanced regionalisation and multi-annual management plans. It aims to avoid the adverse environmental impacts of fishing activ...
Technical Report
Full-text available
Bycatch is one of the main sources of anthropogenic mortality of species of conservation concern worldwide. Between March 2016 and December 2017, the monitoring programme of cetacean bycatch in Italian pelagic trawlers (BYCATCH 2016-2017) has been carried out. This programme is funded in compliance with the Regulation (EC) No.812/2004 and is coordi...
Article
Full-text available
Elasmobranchs are among the most threatened long-lived marine species worldwide, and incidental capture is a major source of mortality. The northern central Adriatic Sea, though one of the most overfished basins of the Mediterranean Sea, supports a very valuable marine biodiversity, including elasmobranchs. This study assesses the impact of the nor...
Data
Results of the dispersion test performed with full Poisson model for all species. (DOCX)
Data
Differences in mean levels of estimated CPUE of M. mustelus (on the left) and S.acanthias (on the right) among fishing regions (1–5) during mating period and other periods. On the Y axis, each fishing regions (1–5) is represented on the left of the x, while the reproductive period effect is the number on the right and it has two levels (1 = mating...
Data
Differences in mean levels of CPUE of M. mustelus (on the left) and S.acanthias (on the right) within potential nursery areas and fishing area (#1-#5). (JPEG)
Data
Summary table reporting the total number of M. mustelus (a) and S. acanthias (b) bycaught during the monitoring programme conducted between 2006 and 2015. The total number of immature individuals, their mean length and standard deviations are listed for all five fishing regions (1–5) and calendar quarters (1Q-4Q). (DOCX)
Article
Full-text available
The aim of this study was to assess the effect of tow duration on catch per unit of swept area (CPUE), trawl catch performance, and the proportion of the species caught in a trawl survey. Longer tows are expected to have a greater probability of catching species. An average of 26 species were caught in the first 30 minutes, whereas only about one a...
Data
Design of the GOC 73 trawl, the standard trawl designed for the MEDITS programme by IFREMER Sète. Its main characteristics are: headline 35.7 m, sidelines 7.4 m, footrope 40.0 m, two panels with sides, for a boat of 500–1000 HP, pull at bollard 4.5 t, twine area 54.78 m. PA = polyamide, PE = polyethylene, PP = polypropylene, SST = stainless steel,...
Data
Conditions of the fishing experiments conducted with the two types of tows, which had a nominal duration of 30 or 60 minutes (T30 and T60, respectively). Mean effective tow duration, towing speed (TS), horizontal net opening (HNO), swept longitudinal distance (SLD), swept area (SWA), and total catch data are provided. The kratio is the ratio of SWA...
Technical Report
Full-text available
Bycatch is one of the main sources of anthropogenic mortality of species of conservation concern worldwide. Between March 2016 and December 2017, the monitoring programme of cetacean bycatch in Italian pelagic trawlers (BYCATCH 2016-2017) has been carried out. This programme is funded in compliance with the Regulation (EC) No.812/2004 and is coordi...
Chapter
Full-text available
This chapter reviews the current state of knowledge about global chondrichthyes bycatch, including how the combination of biological characteristics of these species and the impact of different fishing methods reflect their vulnerability to bycatch. Specifically, it summarizes the present status of elasmobranchs and chimaeras bycatch worldwide. Fol...
Article
This study illustrates some potential applications of side-scan sonar to explain issues related to fisheries science. Side-scan sonar enabled identification of the footprint of different trawl types. It showed that a twin trawl sweeps a 30% greater area than a traditional trawl and that a semipelagic trawl door has more limited impact than a tradit...
Technical Report
Full-text available
This newsletter (Deliverable 8.14) describes some of the results of the BENTHIS project achieved in 2016 and 2017. It contains relatively few news items, since the main effort in 2017 went into creating a set of 5 animations. The animations will explain the concepts and results of the project, and will be distributed via social media starting in De...
Technical Report
Full-text available
BENTHIS developed the scientific basis to quantify the impact of bottom trawling on the seafloor and the benthic ecosystem. Based on insight in how fishing gear affects the seafloor, an assessment framework was developed that provide indicators of impact and seafloor status on a continuous scale that can be applied in the context of the MSFD. The m...
Article
We present a framework for results-based management (RBM) of commercial fisheries. The core idea of RBM is to reduce micromanagement by delegating management responsibility to resource users. The RBM framework represents an industrial organization approach to co-management and comprises three defining processes, conducted by three independent “agen...
Conference Paper
Full-text available
(PIXE) has been adopted as non-destructive technique to investigate two fishing net samples made of polymeric materials. The primary goal of this study has been to create indications to advance the correct technological and material description of the objects providing scientific data for further and more comprehensive comparative analyses. PIXE ha...
Article
An experiment was conducted to assess the selectivity in a typical Mediterranean bottom trawl, equipped with a square-mesh panel inserted in front of the codend, for Atlantic horse mackerel (Trachurus trachurus), European hake (Merluccius merluccius), red mullet (Mullus barbatus), poor cod (Trisopterus minutus), broadtail shortfin squid (Illex coin...
Article
Full-text available
Discarding is considered globally among the most important issues for fisheries management. The recent reform of the Common Fisheries Policy establishes a landing obligation for the species which are subject to catch limits and, in the Mediterranean, for species which are subject to Minimum Conservation Reference Size (MCRS) as defined in Annex III...
Article
Full-text available
Intense fishing pressure has been depleting marine resources worldwide. At a time when almost a third of world stocks are overexploited, the demand for fish and seafood is growing both due to the increasing world population and to rising per capita consumption. Over the past few decades, the demand for fish products has in turn grown considerably i...
Article
Full-text available
Mapping trawling pressure on the benthic habitats is needed as background to support an ecosystem approach to fisheries management. The extent and intensity of bottom trawling on the European continental shelf (0–1000 m) was analysed from logbook statistics and vessel monitoring system data for 2010–2012 at a grid cell resolution of 1 x� 1 min long...
Article
The aim of the present study is to analyse and review the information on small-scale driftnets (SSDs), including fishing capacity and composition of catches that has been published in the literature. The study also assesses also the possible interaction of SSDs on the ecosystem, including both protected and non-protected species. Altogether, 45 act...
Conference Paper
Full-text available
This paper presents energy and power evaluations on propulsion and generation systems related to a research vessel, named G. DALLAPORTA. This vessel is used by the National Research Council of Italy for oceanographic campaigns, which are generally carried out in the Mediterranean Sea. The analysis is based on measurements of the main electrical and...
Technical Report
Full-text available
Commission Decision of 25 February 2016 setting up a Scientific, Technical and Economic Committee for Fisheries, C(2016) 1084, OJ C 74, 26.2.2016, p. 4–10. The Commission may consult the group on any matter relating to marine and fisheries biology, fishing gear technology, fisheries economics, fisheries governance, ecosystem effects of fisheries, a...
Technical Report
Full-text available
In 2014, the EU fishing fleet numbered 81 500 vessels with a combined gross tonnage (GT) of 1.6 million tonnes and engine power of 6.4 million kilowatts (kW). EU fleet capacity has continued to decrease steadily, at an average annual rate of 2% in terms of vessel numbers and engine power (kW) and 3% in terms of gross tonnage (GT). Based on data sub...
Article
Full-text available
The aim of this study was to provide practitioners working with trawl selectivity with general and easily understandable guidelines regarding the fish sampling effort necessary during sea trials. In particular, we focused on how many fish would need to be caught and length measured in a trawl haul in order to assess the selectivity parameters of th...