Catch rates of monkfish (Lophius spp.) by lost tangle nets in the Cantabrian Sea (northern Spain)

Sancho, Gorka; Puente, Esteban; Bilbao, Araitz; Gómez, Eva Domingo; Arregi, Luis

doi:10.1016/s0165-7836(03)00212-1

Cited by 36 publications

(24 citation statements)

References 6 publications

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“…total Entanglement Spp. total Entanglement (n) (n) (%) (n) (n) (%) the risks of entanglement, are the size and structure (Sancho et al 2003) of the lost nets and their location. For example, nets that are stretched open by structures on the sea bed, tend to catch more organisms .…”

Section: Ways Of Entanglementmentioning

confidence: 99%

“…For example, nets that are stretched open by structures on the sea bed, tend to catch more organisms . The estimated time, over which lost fishing gear continues to entangle and kill organisms varies substantially and is site and gear specific Erzini 1997;Hébert et al 2001;Humborstad et al 2003;Revill and Dunlin 2003;Sancho et al 2003;Tschernij and Larsson 2003;Matsuoka et al 2005;Newman et al 2011). Matsuoka et al (2005) estimated catch durations of derelict gill-and trammel-nets from different studies between 30 and 568 days.…”

Section: Ways Of Entanglementmentioning

confidence: 99%

“…Still, the nets continued fishing at a low rate until the end of the experiment after 27 months. Lost fishing gear can carry on trapping, until it is heavily colonised, altering weight, mesh size and visibility (Erzini 1997;Humborstad et al 2003;Sancho et al 2003). In deeper waters, ghost fishing seems to continue for longer periods of time, as fouling takes longer Humborstad et al 2003;Large et al 2009).…”

Section: Ways Of Entanglementmentioning

confidence: 99%

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Deleterious Effects of Litter on Marine Life

Kühn

Rebolledo

Franeker

2015

Marine Anthropogenic Litter

444

350

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In this review we report new findings concerning interaction between marine debris and wildlife. Deleterious effects and consequences of entanglement, consumption and smothering are highlighted and discussed. The number of species known to have been affected by either entanglement or ingestion of plastic debris has doubled since 1997, from 267 to 557 species among all groups of wildlife. For marine turtles the number of affected species increased from 86 to 100 % (now 7 of 7 species), for marine mammals from 43 to 66 % (now 81 of 123 species) and for seabirds from 44 to 50 % of species (now 203 of 406 species). Strong increases in records were also listed for fish and invertebrates, groups that were previously not considered in detail. In future records of interactions between marine debris and wildlife we recommend to focus on standardized data on frequency of occurrence and quantities of debris ingested. In combination with dedicated impact studies in the wild or experiments, this will allow more detailed assessments of the deleterious effects of marine debris on individuals and populations. Kühn, . Deleterious effects of litter on marine life. pp M., Gutow, L., and Klages, M. (eds). Marine Anthropogenic Litter. Springer, Berlin. including Supplementary material 76 S. Kühn et al. Keywords IntroductionFor several decades, it has been known that anthropogenic debris in the marine environment, in particular plastic, affects marine organisms (Shomura and Yoshida 1985;Derraik 2002;. Plastic production grows at 5 % per year (Andrady and Neal 2009). Part of the material ends up as litter in the marine environment, to such an extent that the issue is considered to be of major global concern (UNEP 2011). Awareness has grown that plastics may become less visible but do not really disappear as they become fragmented into small persistent particles ('plastic soup') (Andrady 2015). Plastic fragmentation can be caused by abiotic factors (Andrady 2011) or through animal digestion processes ). The smaller the particle, the higher the availability to animals at the base of the food chain. The potential deleterious effects from ingestion, have heightened the urgency to evaluate the impact of plastics on the whole marine food chain and, ultimately, the consequences for humans as end consumers (Koch and Calafat 2009; UNEP 2011;Galloway 2015).The most visible effect of plastic pollution on marine organisms concerns wildlife entanglement in marine debris, often in discarded or lost fishing gear and ropes Baulch and Perry 2014). Entangled biota are hindered in their ability to move, feed and breathe. In addition, many marine organisms mistake litter for food and ingest it . Indigestible debris such as plastics may accumulate in their stomachs and affect individual fitness, with consequences for reproduction and survival, even if not causing direct mortality McCauley and Bjorndal 1999). Marine birds, turtles and mammals have received most attention, but the consequences of entanglement and ingestion on other organism grou...

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Section: Ways Of Entanglementmentioning

confidence: 99%

Section: Ways Of Entanglementmentioning

confidence: 99%

Section: Ways Of Entanglementmentioning

confidence: 99%

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Deleterious Effects of Litter on Marine Life

Kühn

Rebolledo

Franeker

2015

Marine Anthropogenic Litter

444

350

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“…Observations only concern dead or living animals entangled in marine debris including derelict fishing gear. Between the two reviews, the number of species, in the groups considered, differ because of changes in accepted taxonomic status, and selection of which species groups should be considered to be 'marine ' the risks of entanglement, are the size and structure (Sancho et al 2003) of the lost nets and their location. For example, nets that are stretched open by structures on the sea bed, tend to catch more organisms (Good et al 2010).…”

Section: Ways Of Entanglementmentioning

confidence: 99%

Marine Anthropogenic Litter

Bergmann¹,

Gutow²,

Klages³

2015

637

123

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“…While cuttlefish landings include a single species (Sepia officinalis), two squid species (Loligo vulgaris and L. forbesii) are commercialized in a pooled category. Therefore, a single combined assessment was conducted for both loliginids, as has been previously done either for the same squid species in Atlantic waters (Robin & Denis, 1999) and in other fish species that are also sold jointly (Sancho et al, 2003). Biological data (individual size and weight) were obtained from monthly fish market samples analysed at the laboratory.…”

Section: Description Of the Fisherymentioning

confidence: 99%

The use of Depletion Methods to assess Mediterranean cephalopod stocks under the current EU Data Collection Framework

et al. 2015

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Fuelled by the increasing importance of cephalopod fisheries in Europe, scientists and stakeholders have demanded their assessment and management. However, little has been done to improve the data collection under the EU Data Collection Framework (DCF) in order to analyse cephalopod populations. While the DCF allows member states to design flexible national sampling programmes, it establishes the minimum data requirements (MDR) each state is obliged to fulfil. This study was performed to investigate whether such MDR currently set by the DCF allow the application of depletion models (DMs) to assess European cephalopod stocks. Squid and cuttlefish fisheries from the western Mediterranean were used as a case study. This study sheds doubt on the suitability of the MDR to properly assess and manage cephalopod stocks by means of DMs. Owing to the high plasticity of life-history traits in cephalopod populations, biological parameters should be estimated during the actual depletion period of the fished stocks, rather than performing triennial sampling as established by the DCF. In order to accurately track the depletion event, the rapid growth rates of cephalopods implies that their populations should be monitored at shorter time scales (ideally weekly or biweekly) instead of quarterly as specified by the DCF. These measures would not require additional resources of the ongoing DCF but a redistribution of sampling efforts during the depletion period. Such changes in the sampling scheme could be designed and undertaken by the member states or directly integrated as requirements.

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Catch rates of monkfish (Lophius spp.) by lost tangle nets in the Cantabrian Sea (northern Spain)

Cited by 36 publications

References 6 publications

Deleterious Effects of Litter on Marine Life

Deleterious Effects of Litter on Marine Life

Marine Anthropogenic Litter

The use of Depletion Methods to assess Mediterranean cephalopod stocks under the current EU Data Collection Framework

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