Abstract Species Distribution Models are pivotal for fisheries management. There has been an increasing number of fishery data sources available, making integration attractive way to improve model predictions. A wide range methods have applied integrate different datasets in disciplines. We focus on the use Integrated (ISDMs) due their capacity formally accommodate types and scale proportional ...

Using bottom-trawl survey data to examine fishery resources in the Beibu Gulf, South China Sea, changes stock density, dominant species composition, mean trophic level, and fishing-in-balance index were comprehensively analyzed. The results show that density of declined gulf from 1961 2017. composition trawl surveys Gulf changed greatly 1961–1962 2016–2017 showed a shift bottom pelagic high-tro...

Declines of marine megafauna due to fisheries by-catch are thought to be mitigated by exclusion devices that release nontarget species. However, exclusion devices may instead conceal negative effects associated with by-catch caused by fisheries (i.e., unobserved or discarded by-catch with low postrelease survival or reproduction). We show that the decline of the endangered New Zealand (NZ) sea ...

The Argentine stiletto shrimp (Artemesia longinaris) and the Argentine red shrimp (Pleoticus muelleri) currently sustain an important fishery in terms of tonnage and revenues in southern Brazil. This study analyzed the factors affecting the abundance of both species through the application of Generalized Linear Models to landing-per-unit-of-effort (LPUE) data of the trawl fleet operating on the...

In this paper, we present an approach to compare the impact of different management options on the dynamics of a mixed fishery. We used ISIS-Fish, a simulation tool aimed at evaluating the impact of spatial and seasonal management measures on the dynamics of mixed fisheries. The French Nephrops norvegicus (Norway lobster) – Merluccius merluccius (hake) mixed fishery of the Bay of Biscay was cho...

Data from pelagic trawl surveys by TINRO-center from 1987 to 1996 in the Okhotsk Sea indicate that coho abundance is underestimated by coastal observations. The approximate Asian coho spawning biomass is 7,300-16,000 tons for the 1990s. Ways of improving Asian coho salmon resource management are discussed. Collection of precise fishery and escapement statistics must be expanded in areas previou...

and customary fishers mainly take white sharks as bycatch in gillnets, and occasionally on longlines (Duffy unpubl. data). Sport fisheries for white sharks in New Zealand are largely undeveloped and fishers often tag and release those they do catch (Mossman 1993; Wilson 2002). A protective beach meshing programme run by Dunedin City Council (DCC) operates seasonally off Brighton, St. Clair and ...

Large sardinella (Sardinella maderensis and Sardinella aurita) in warm waters off the coast of Africa are known to be a challenge for pelagic trawl sampling, for example during acoustic surveys for abundance estimation. We observed the swimming behaviour of sardinella mixed with other pelagic species, mainly Cunene horse mackerel (Trachurus trecae), during sampling with a pelagic trawl in the c...

In this research, we address the relationship that exists between development of certain unsustainable fishing practices among professional small-scale fishery, industrial fishery and recreational historical social changes observed in configuration maritime communities Mallorca (Balearic Islands, Spain). We also explore impact European, Spanish regional policies have had on strategies exploitat...