Search results for "Fishing"

Effects of paper mill effluents on the fish fauna of stony shores of Lake Päijänne

1992

The fish fauna of the stony littoral in the central parts of L. Paijanne was studied by electric fishing on four occasions during 1988–1989. Ten fish species and 1681 individuals (14.5 kg) were caught in the 15 fishing sites (4096 m2) which gives a mean density of 0.41 ind. m-2 and biomass of 3.5 g m-2. Effluent from two large paper mills causes a clear zonation of the fish fauna in the area. In the most polluted shores, only burbot and perch occurred regularly and the reproduction of other species was inhibited. In the semipolluted area (5–15 km from the Kaipola paper mill), burbot and stone loach occurred regularly, but owing to low numbers of perch and bullhead the total densities were u…

2020

The present study aimed at measuring the levels of legacy and emerging contaminants in fillet samples from four demersal fish caught in two fishing sites from Southern Norway, in order to assess possible implications for food safety. Levels of organochlorine compounds (OCs), organophosphate pesticides (OPs), polychlorinated biphenyls (PCBs), polybromodiphenyl ethers (PBDE), per- and polyfluoroalkyl substances (PFASs), and polycyclic aromatic hydrocarbons (PAHs) were measured in fillet from Atlantic cod (Gadus morhua), European plaice (Pleuronectes platessa), lemon sole (Microstomus kitt), and European flounder (Platichthys flesus) specimens. A negligible contamination by all the investigate…

Social-ecological trends: managing the vulnerability of coastal fishing communities

2019

The loss of biodiversity, including the collapse of fish stocks, affects the vulnerability of social-ecological systems (SESs) and threatens local livelihoods. Incorporating community-centered indicators and SES drivers and exposures of change into coastal management can help anticipate and mitigate human and/or coastal vulnerability. We have proposed a new index to measure the social-ecological vulnerability of coastal fishing communities (Index of Coastal Vulnerability [ICV]) based on species, ecosystem, and social indicators. The ICV varies from 0 (no vulnerability) to 1 (very high vulnerability) and is composed of 3 components: species vulnerability, i.e., fish biological traits; ecosys…

Kestävyyttä tukevat hallintokäytännöt – vapaa-ajankalastajien näkemyksiä Järvi-Suomen taimen- ja järvilohikantojen hoidosta ja kalastuksen säätelystä

2019

Vapaa-ajankalastus on Suomessa hyvin suosittua ja sitä harjoitetaan kaikilla järvialueilla. Kalastuksen kohteena on yleensä useita kalalajeja ja käytössä on useita eri kalastustapoja, hyvin yleisesti myös verkkoja. Vapaa-ajankalastus muodostaa uhan useiden lajien kestävyydelle ja erityisesti se estää uhanalaisen järvilohen ja vaarantuneen järvitaimenen kantojen palautumisen. Nämä lajit taantuivat vesivoiman rakentamisen seurauksena.
  Suomen sisävesien hallinto on yhdistelmä keskusjohtoista ja alueellista hallintoa, jossa eri kalastajaryhmien osallistuminen on muodollisesti järjestetty. Käytännön päätöksenteko on keskittynyt paikallisille maanomistajille. Tähän mennessä kalastajien sää…

Digitālā komunikācija "Netflix" seriālā "The Circle" 2. sezonā

2022

Bakalaura darba tēma ir “Digitālā komunikācija “Netflix” seriālā “The Circle” 2.sezonā”. Darba mērķis ir noskaidrot, kā atpazīt “catfishinga” manipulāciju formas, kā ar tām cīnīties un saprast, kādi ir šādas darbības galvenie nolūki. Darbā tiek apskatīts amerikāņu realitātes šovs “The Circle” 2. sezona un tā auditorija. Mērķa sasniegšanai tika izmantota teorētiskā literatūra un izvirzītās pētniecības metodes. Teorētiskajā daļā ir aplūkota mediju lietojuma un apmierinājuma teorija, realitātes šova žanrs, mediju auditorija, seriāls “The Circle” un “catfishings”. Pētījuma veikšanai tika izmantotas divas metodes – interneta aptauja un strukturētā/daļēji strukturētā intervija.

Risk Analysis of Human Anisakidosis Through the Consumption of the Blue Whiting, Micromesistius poutassou, Sold at Spanish Supermarkets

2012

European legislation directed at the catering industry concerning the prevention of anisakidosis proposes efficient measures to avoid human infestation, but this legislation does not directly address the consumer at the household level. Assessing the anisakidosis risk for consumers who buy fresh fish at supermarkets in Spain, 284 blue whiting, Micromesistius poutassou, specimens, originating from two fishing zones and seasons of capture, sold at five nationwide Spanish supermarket chains, were examined to identify the presence of anisakid species and analyze their prevalence and abundance in viscera and flesh. The potential influence of intrinsic (length and weight) and extrinsic (origin, s…

Aspek Biologi dan Pemetaan Daerah Penangkapan Lobster (Panulirus spp) di Perairan Kampung Akudiomi Distrik Yaur Kabupaten Nabire

2017

Penelitian ini dilakukan pada bulan Maret sampai April 2014 di kampung Akudiomi yang dikenal sebagai perairan Kwatisore Kabupaten Nabire Provinsi Papua. Tujuan dari penelitian ini, untuk mengetahui komposisi jenis, mengukur panjang-berat, meng-iventarisasi nelayan lokal dan memetakan daerah penangkapan lobster. Metode yang digunakan adalah metode deskriptif dengan teknik observasi, pengambilan sampling dan wawancara. Pemetaan dan identifikasi hubungan parameter oseanografi perairan (suhu, salinitas, kedalaman dan pH) di daerah penangkapan lobster untuk mengetahui pengaruhnya terhadap ketersediaan sumberdaya lobster. Hasil identifikasi diperoleh 3 jenis lobster yang tertangkap oleh nelayan d…

The effects of recreational Paracentrotus lividus fishing on distribution patterns of sea urchins at Ustica Island MPA (Western Mediterranean, Italy)

2006

This study evaluated the effects of recreational Paracentrotus lividus fishing on average density and size of this edible sea urchin, and its indirect effects on Arbacia lixula on barren substrates of Ustica Island MPA (SW Italy, Mediterranean Sea). Size, single and pooled species densities, density of large individuals (>40 mm long) and small individuals (<20 mm long) of the two species were estimated by scuba diving in autumn 2003, spring and summer 2004 at two sites impacted by P. lividus fishing (Punta Cavazzi and Pagliaro, take zone C) and one control (Cala Sidoti, no take zone). Two samplings were performed in each season. We found that reduced densities of P. lividus and A. lixula oc…

Five key attributes can increase marine protected areas performance for small-scale fisheries management

2016

AbstractMarine protected areas (MPAs) have largely proven to be effective tools for conserving marine ecosystem, while socio-economic benefits generated by MPAs to fisheries are still under debate. Many MPAs embed a no-take zone, aiming to preserve natural populations and ecosystems, within a buffer zone where potentially sustainable activities are allowed. Small-scale fisheries (SSF) within buffer zones can be highly beneficial by promoting local socio-economies. However, guidelines to successfully manage SSFs within MPAs, ensuring both conservation and fisheries goals, and reaching a win-win scenario, are largely unavailable. From the peer-reviewed literature, grey-literature and intervie…

A century of fishery data documenting the collapse of smooth-hounds (Mustelusspp.) in the Mediterranean Sea

2017

Conservation and management of shark populations is increasingly becoming important in many marine regions, since there is a growing body of evidence showing that several species are threatened and continuing to decline because of unregulated fishing. Quantifying the extent of sharks' decline, the risk of species extinction, and the consequences for marine ecosystems have been challenging and controversial, mostly due to data limitations. In this study, more than one century of multiple-sources of bibliographic records on presence and frequency of occurrence of three species of commercial sharks, the smooth-hounds Mustelus spp., in the Mediterranean Sea were compiled and analysed. Generaliz…