Amanda Vincent

Amanda Vincent
The University of British Columbia - Vancouver · Institute for the Oceans and Fisheries

PhD

About

154
Publications
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8,834
Citations

Publications

Publications (154)
Article
Seahorses set precedent as the first marine fishes added to CITES Appendix II and taken through CITES processes. Although the vast majority of seahorses are traded dead for traditional medicine, the live trade for ornamental display was the main pressure on some populations. We investigated changes in the international trade in live seahorses over...
Article
Full-text available
Implementing a ban on fishing specific taxa is difficult enough without the added complexity of the taxa being primarily obtained as incidental catch. Most measures for restricting capture and trade to sustainable levels are directed towards targeted species, while overlooking the needs of incidentally caught species. Our study investigates the exp...
Article
Full-text available
Few marine taxa have been comprehensively assessed for their conservation status, despite heavy pressures from fishing, habitat degradation and climate change. Here we report on the first global assessment of extinction risk for 300 species of syngnathiform fishes known as of 2017, using the IUCN Red List criteria. This order of bony teleosts is do...
Article
Actions for conservation and sustainable use need to be judged on their efficacy in achieving declared objectives. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) is unusual among global agreements because it has teeth; a process called the Review of Significant Trade (RST) allows disciplinary action in t...
Article
To pursue sustainable fisheries, the world needs to constrain bottom trawling (BT) through effective management. Such change is particularly urgent for China, which operates one of the largest bottom-trawl fisheries (BTF) both in and beyond its waters. We provide the first comprehensive review of China’s approach to BTF over seven decades (1949 – 2...
Article
• All seahorse species (genus Hippocampus) are listed under Schedule I of India's Wild Life Protection Act, making all capture and trade of seahorses illegal. In the more than 15 years since the ban, little work has been done to assess its effects on seahorse conservation. • Between 2015 and 2017, fisheries and trade surveys were conducted along th...
Preprint
1. All seahorse species (genus Hippocampus) are listed under Schedule I of India’s Wild Life Protection Act, making all capture and trade of seahorses illegal. In the more than 15 years since the ban, little work has been done to assess its effects on seahorse conservation. 2. Between 2015-2017, fisheries and trade surveys were conducted along the...
Method
Full-text available
Bottom trawling (BT) has long been a global concern for its destructive impacts on marine fisheries and conservation. Revealing the evolution of BT and its impact on the marine ecosystems depends on timeseries data of the fishing capacity and landings. Such timeseries information might be well documented in developed countries but are rare in many...
Research
Full-text available
To pursue sustainable fisheries, the world needs to constrain bottom trawling (BT) through effective management. Such change is particularly urgent for China, which operates the largest bottom-trawl fisheries (BTF) both in and beyond its waters. We provide the first comprehensive review of China's approach to BTF over seven decades (1949-2018) base...
Article
What happens when those who provide conservation advice are required to take policy and management action based on that advice? Conservation advocates and scientists often try to prompt regulatory change that has significant implications for government without facing the challenge of managing such change. Through a case study, we placed ourselves i...
Article
Identifying priority habitats at broad spatial scales is increasingly required for marine species, which generally have large geographic ranges. However, this is challenging due to the lack of techniques and data. Here we initiated prioritization studies for a genus of flagship species, seahorses (Hippocampus spp.), at a national scale (in China) a...
Article
Full-text available
This review compiles, summarizes and provides new analytical insights on large amounts of fragmented information on the diets and feeding behaviours of syngnathids (Family Syngnathidae). This review is broken down into two distinct sections that address two central questions: (1) How, where, when and what do syngnathids eat? And (2) How does diet d...
Article
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Many vulnerable marine species are caught in small-scale fisheries that lack long-term records, thereby limiting the development of effective evidence-based management measures. To uncover recent trends in fish landings and value in the absence of historical data, we interviewed 77 fishers and five buyers on Phu Quoc Island in Southern Vietnam rega...
Article
Illegal trade undermines efforts to achieve sustainable use of wildlife, including marine fishes. This study investigated the illegal trade of seahorses, among the first taxa of marine fishes to come under global trade restrictions. Seahorses are listed in Appendix II of the Convention on International Trade in Endangered Species of Wild Fauna and...
Article
Full-text available
Understanding the threats acting upon marine organisms and their conservation status is vital but challenging given a paucity of data. Here we provide a global‐scale study of cumulative human impact (CHI) and conservation status of seahorses (Hippocampus spp.) – a genus of rare and data‐poor marine fishes. We built linear‐additive models to assess...
Article
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A leading argument for no-take marine protected area (marine reserve) establishment is their contribution to the conservation of biodiversity, but the impacts of reserves on ecosystem functioning have seldom been quantified. This is unusual given the value of services provided by ocean ecosystems to human well-being. While no single index can descr...
Article
• Macroinvertebrates play a critical role in marine processes, are important in global fisheries, and make up the vast majority of ocean biodiversity, yet are largely overlooked in fisheries stock assessment and conservation. Marine reserves are a heavily advocated method for promoting recovery of marine biodiversity, but the design of reserves and...
Technical Report
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This document was submitted by Maldives, Monaco, Sri Lanka and the United States of America.
Article
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Exploitation for trade is one of the biggest threats to many species, especially for marine fishes. Trade regulations should, therefore, be effective in helping conserve marine fish populations. The Convention of International Trade in Endangered Species of Wild Fauna and Flora (CITES), one of the few multilateral environmental agreements with enfo...
Article
Full-text available
In this paper, we examine the role of gender in community-based management of marine protected areas (MPAs) in the Central Philippines. MPAs are a common conservation and fisheries management tool in this area, but the relationship between gendered fishing practices and participatory MPA management is rarely considered. In this region, women and me...
Article
Analysing the associations between the endangered White's seahorse Hippocampus whitei and characteristics of its environment (including habitat, prey and predator variables) in an estuary in New South Wales, Australia, revealed that seahorses had a greater number of significant associations with environmental correlates within a single seagrass bed...
Article
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Aim To identify useful sources of species data and appropriate habitat variables for species distribution modelling on rare species, with seahorses as an example, deriving ecological knowledge and spatially explicit maps to advance global seahorse conservation. Location The shallow seas. Methods We applied a typical species distribution model (SD...
Article
Full-text available
Locally sustainable resource extraction activities, at times, transform into ecologically detrimental enterprises. Understanding such transitions is a primary challenge for conservation and management of many ecosystems. In marine systems, over-exploitation of small-scale fisheries creates problems such as reduced biodiversity and lower catches. Ho...
Data
Summary information about 23 fishing communities in the central Danajon Bank, Philippines including population sizes, sample sizes, and the presence of fishers’ organizations and MPAs. (PDF)
Data
Summary of GLS model statistics for changes in the total fishing effort (fishing days per year by fishers in participating villages) allocated to gears in the central Danajon Bank, Philippines (1960–2010). Full models tested the effects of year and governance period, and their interaction on total fishing effort by each category of fishing gear. Mo...
Data
Summary of GLS model statistics for changes in the relative fishing effort (percentage of fishing days per year) allocated to gears in the central Danajon Bank, Philippines (1960–2010). Full models tested the effects of year and governance period, and their interaction on relative fishing effort by each category of fishing gear. Models considered c...
Data
Summary of GLS model statistics for changes in the proportion of fishers using various fishing gears in a year in the central Danajon Bank, Philippines (1960–2010). Full models tested the effects of year and governance period, and their interaction on the percentage of fishers by each category of fishing gear. Models considered changes in the use o...
Article
As catches of economically valuable target fishes decline, indiscriminate fisheries are on the rise, where commercial and small-scale fishers retain and sell an increasing number of marine species. Some of these catches are destined for international markets and subject to international trade regulations. Many of these species are considered "data-...
Article
Trade regulations may be useful for conserving marine species that are suffering from overexploitation. The Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) has emerged as an instrument to help tighten fisheries management. However, the impacts of CITES regulations have not been examined for the trade in fully...
Article
Full-text available
The location and intensity of small-scale fishing is dynamic over time, greatly shaping ecosystems. However, historical information about fishing effort and fishing gear-use are often unavailable. Within a marine biodiversity hotspot in the Philippines, we characterized spatio-temporal dynamics of fishing (1960-2010) using participatory mapping. Fi...
Article
Serial depletions and the use of indiscriminate gears have led to increased fishing pressure on many previously untargeted species. A largely unregulated global extraction of seahorses (Hippocampus spp.) has emerged, of which Vietnam is one of the main sources. Quantifying this extraction is a major empirical and enforcement challenge. Using catch...
Article
When seeking to conserve data-poor species, we need to decide how to allocate research effort, especially when threats are substantial and pressing. Our study provides guidance for sampling marine fishes that are particularly difficult to find – those species that are cryptic or rare and or where little information exists on local distribution (dat...
Article
Modeling and mapping species distributions are vital to biodiversity conservation, but challenging for data-limited species whose localities are poorly recorded. Here we examine the utility of three datasets and species distribution models in conservation of seahorses (Hippocampus spp.), a genus of poorly-recorded marine fishes. We collated occurre...
Article
Full-text available
Do fishers know best when it comes to identifying areas with rare and depleted fish species? The global conservation crisis demands that managers marshal all available datasets to inform conservation management plans for depleted species, yet the level of trust placed in local knowledge remains uncertain. This study compares four methods for inferr...
Article
Full-text available
Nonselective fishing gears extract a great many small marine species, with limited documentation or assessment of their impacts. Among those species, seahorses (genus Hippocampus) are unusual because this genus has been the focus of scientific surveys and international trade regulation. Our review of published and unpublished data sources analyzed...
Article
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Socio-political issues are important in environmental policy outcomes but are often overlooked in conservation planning. We analyze the effects of historical social, political, and ecological contexts on conservation policy outcomes as applied to the Upper Gulf of California and Colorado River Delta Biosphere Reserve. A rushed implementation, perha...
Article
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Detailed habitat maps are critical for conservation planning, yet for many coastal habitats only coarse-resolution maps are available. As the logistic and technological constraints of habitat mapping become increasingly tractable, habitat map comparisons are warranted. Here we compare two mapping approaches: local environmental knowledge (LEK) obta...
Technical Report
Full-text available
This document was submitted to CITES CoP17 by the Secretariat on behalf of the FAO and IUCN, in relation to agenda items 15 (Capacity building) and 88 (Proposals to amend Appendices I and II).
Technical Report
Full-text available
This document was submitted to CITES CoP17 by the Secretariat on behalf of the IUCN to inform the Parties in reference in particular to agenda items 15 (Capacity building), 22 (National laws for implementation of the Convention), 23 (CITES compliance matters), 25 (Enforcement matters), 26 (Illegal international trade in wildlife), 36 (Introduction...
Technical Report
Full-text available
This document was submitted to CITES CoP17 by the Secretariat on behalf of the IUCN, in relation to agenda item 78 on Sharing existing written science-based rationales and scientific information for non-detriment findings made for trade in CITES-listed species, and 88: Proposals to amend Appendices I and II.
Technical Report
Full-text available
This document was been submitted to CITES CoP17 by the Secretariat on behalf of the IUCN, in relation to agenda item 78 on Evaluation of the Review of Significant Trade (CoP17 Doc. 33).
Article
This study provides the first assessment of a heavily traded West African seahorse species, Hippocampus algiricus, and the first information on short-snouted seahorse Hippocampus hippocampus biology in Africa. A total of 219 seahorses were sampled from fisher catch in Senegal and The Gambia, with estimated height at reproductive activity for H. alg...
Research
Full-text available
This framework is intended to help CITES Authorities (www.cites.org) in making “Non-Detriment Findings” (NDFs) for seahorses. We realise making NDFs for seahorses can seem challenging, especially where Parties feel they know little about their seahorse populations. But the truth is you already know enough to get going. Truly. A lot can be done righ...
Conference Paper
Full-text available
Searching for rare marine species is hard. As researchers how can we have confidence that zeros represent true absence of a marine species? Our research provides guidance for sampling some of the hardest marine fish to find – those that are small, data-poor and cryptic. We used our experience searching for seahorses in Thailand over two research se...
Article
Full-text available
Historically, many scientists considered marine fishes too fecund and wide-ranging to go extinct. Indeed, this view sometimes persists, not least at the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES), where the few decisions to control export of marine fishes—including the recent restrictions on sharks and r...
Article
Full-text available
Concerns regarding the sustainability of the seahorse Hippocampus spp. trade led to their listing on CITES Appendix II in 2002, with implementation in 2004. In 2007 we interviewed wholesale traders of seahorses in Hong Kong, China, seeking indications of the effects of the CITES listing on the seahorse trade. We cross-validated traders’ perspective...
Article
Life-history variables for three incidentally captured species of seahorse (Kellogg's seahorse Hip-pocampus kelloggi, the hedgehog seahorse Hippocampus spinosissimus and the three-spot seahorse Hippocampus trimaculatus) were established using specimens obtained from 33 fisheries landing sites in Peninsular Malaysia. When samples were pooled by spec...
Article
In principle, the database generated by the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) offers an unparalleled opportunity to analyse trade in species of conservation concern.The value of the database is assessed in the context of trade in 47 species of seahorse (Hippocampus spp.), all of which are includ...
Article
Marine ecosystem–scale fisheries research and management must include the fishing effort of women and men. Even with growing recognition that women do fish, there remains an imperative to engage in more meaningful and relevant gender analysis to improve socio-ecological approaches to fisheries research and management. The implications of a gender a...
Article
Full-text available
Small-scale fisheries catch and effort estimates are often built on incomplete data because they overlook the fishing of minority or marginalized groups. Women do participate in small-scale fisheries and often in ways distinct from men's fishing. Hence, the inclusion of women's fishing is necessary to understanding the diversity and totality of hum...
Article
Coral-reef managers must detect and reverse collapses in habitat and evaluate the success of such interventions. Since these responsibilities must be met with limited time and resources, methods used should balance statistical power with practical and logistical constraints.Photoquadrat analysis is a commonly used method to survey coral habitats. T...
Article
All possible tools need to be marshalled for marine fish conservation. Yet controversy has swirled around what role, if any, the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) should play for marine fishes. This paper analyses the relevance and applicability of CITES as a complementary tool for fisheries man...
Article
The present research provides the first demographic reference points for tropical seahorses, relevant to conservation of this largely tropical genus Hippocampus, which is listed on the Convention on International Trade in Endangered Species of Wild Fauna and Flora (CITES) Appendix II. Findings defined the life-history and in situ vital rates of the...
Article
Full-text available
Researchers are turning to alternative data sources (e.g., resource user knowledge) to provide information required for wildlife management. Little is known about the reliability of data elicited from resource users relative to data obtained from user-independent approaches (e.g., observations of fish catches). We test for consensus among three met...
Article
Tropical shrimp trawlers mostly catch small fish species as bycatch, and commitments to ecosystem-based management and food supply demand adjustment of such bycatch to sustainable levels. Pragmatic ways to assess and address the impact of nonselective fishing practices on small fishes need to be found, especially given the limited knowledge of thei...
Article
Full-text available
In marine environments, charismatic or economically valued taxa have been used as flagships to garner local support or international funds for the establishment and management of marine protected areas (MPAs). Seahorses (Hippocampus spp.) are frequently used as flagship species to help engender support for the creation of small community-managed no...
Article
Seahorses are marine fish with several life history characteristics hypothesized to make them resilient but are of conservation concern because of their international trade and habitat loss.Surveys of two unexploited European seahorse species (Hippocampus guttulatus and Hippocampus hippocampus) in Ria Formosa lagoon, Portugal, were repeated seven y...
Article
To understand how a sedentary fish responds to displacement and identify key habitat characteristics for that fish, we translocated long-snouted seahorses (Hippocampus guttulatus) within their natural habitat but far beyond their home range. After displacement, we located these small fish using acoustic technology and collected environmental data w...
Article
Systematic approaches to site selection for marine protected areas (MPAs) are often favored over opportunistic approaches as a means to meet conservation objectives efficiently. In this study, we compared analytically the conservation value of these two approaches. We locate this study in Danajon Bank, central Philippines, where many MPAs were esta...
Article
This article analyses the pressures on seahorses and explores conservation responses. It focuses on seahorses (Hippocampus spp.) but also considers pipefishes and seadragons, especially where they can fill gaps in seahorse knowledge. The charisma of many syngnathids can make them good flagship species for threats and solutions in marine conservatio...
Article
Artificial marking and tagging techniques have been used to study movement, population dynamics, behaviour, ecology, survival and growth of at least 25 syngnathid species. External necklace-style tags and injection of visible implant elastomer have been the most used techniques, uniquely identifying hundreds of individual syngnathids to study popul...
Article
Policy development related to marine protected areas (MPAs) occurs at three levels: international, national, and local. Recent developments with MPAs highlight their close links to broader national-level park and protected area policies, which in turn take their lead from initiatives and recommendations initiated, and increasingly dictated, by inte...
Article
Despite a growing interest in incorporating fisher knowledge into quantitative conservation assessments, there remain practical impediments to its use. In particular, there is some debate about the accuracy of fisher knowledge. In this study, we report an attempt to quantify assumptions about how accurately fishers report past events (retrospective...