Sarah Martin

Lancaster University | LU · Lancaster Environment Centre

The relationship between fishing, livelihood diversification and poverty was investigated in the lower Mekong basin, in Laos, where fishing forms an important, but usually secondary part of rural livelihoods. Results from a household survey show that participation in fishing is common and positively associated with higher occupational diversity and...

The article examines factors related to the decline and rebuilding of billfish stocks in the Atlantic and Indian oceans. Longline effort has declined over the last 10–15 years in both oceans. This decline in fishing pressure has led to the recovery of some stocks, but some species that are caught incidentally in industrial longline fisheries remain...

Executive Summary Over the past decade, the IOTC has adopted a number of Conservation and Management Measures (CMMs), supporting the conservation of vulnerable species interacting with IOTC fisheries as bycatch. The adoption of a CMM represents the first step in management, however, it is vital to subsequently evaluate the effectiveness of these fo...

Estimating fish growth from length frequency data is challenging. There is often a lack of clearly separated modes and modal progression in the length samples due to a combination of factors, including gear selectivity, slowing growth with increasing age, and spatial segregation of different year classes. In this study, we present an innovative Bay...

Catch histories form an important component of stock assessments and so having a reliable and believable catch series is a key part in gauging the level of stock depletion. In data-limited situations, reported nominal catches are often not considered reliable and so reconstruction of catch histories plays an important role. The first Indian Ocean s...

In 2011, the MSC established its M&E program and began to develop comprehensive databases sourced from fishery and CoC certifications, as well as additional MSC data. These databases form the foundation of indicators published for the first time in the Global Impacts Report 2013. This series provides information about the MSC program in terms of it...

https://ec.europa.eu/fisheries/documentation/studies/socio_economic_dimension/

Movement of Patagonian toothfish in Subarea 48.3 was investigated using tagging program data. Data from 33,322 tag releases and 4,203 tag recaptures were used. The mean movement rate of both sexes combined varied from 25 to 34 km year-1. There was no significant difference in movement rate between male and female fish of the same maturity category...

There is ongoing debate regarding the value of market-based instruments, such as certification schemes, as an approach to improving the environmental impact of fisheries. This article evaluates the effects of the Marine Stewardship Council on the environmental performance of fisheries over the period before and after certification. A large number o...

In this review, we bring together the most recent available evidence for conservation benefits provided by MPAs to pelagic species, taking the opportunity to provide critical discussion where it is appropriate to do so. We also provide an assessment on the impact of pelagic MPAs to fisheries, whether positive or negative. We focus here on the biolo...

A length-based projection model is used to estimate catch limits for the 2011/12 fishing season for Champsocephalus gunnari in CCAMLR sub area 48.3. The model is initialised using estimated numbers at length derived from survey length density and biomass density data, removing the need for cohort identification associated with age based projection...

This report presents the results of a method used to explore potential explanatory variables influencing finfish bycatch in the krill fishery of Area 48. Records of finfish bycatch in the Area 48 krill fishery collected by observers on the FV Saga Sea were analysed over the period 2007/08-2011/12. The majority of fish caught were either small juven...

The report presents a methodology that can be used to estimate the total finfish bycatch of the Area 48 krill fishery and quantify the impact of bycatch on the finfish stocks using data that is currently available, applied to data collected by Scientific Observers on the FV Saga Sea. Estimates of bycatch rates per tonne of catch were made at a fam...

The Marine Stewardship Council’s (MSC) Fisheries Ecolabeling program began in 1999 and over 13% of global wild capture fisheries are now engaged . The MSC was created as a market incentive to help improve management of global fisheries, partly in response to collapses of several large and highly important fisheries. The basis for the MSC program is...

Tropical floodplain wetlands and the fish communities they support are subject to great pressure from human demands for water and aquatic living resources. In densely populated agricultural areas where such pressures are greatest, floodplain wetlands may be dewatered for the dual purpose of crop irrigation and fish harvesting. Viewed as highly dest...