Pingguo He

Pingguo He
University of Massachusetts Dartmouth | UMD · School for Marine Science and Technology

PhD

About

109
Publications
46,466
Reads
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2,157
Citations
Citations since 2017
30 Research Items
963 Citations
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2017201820192020202120222023050100150200

Publications

Publications (109)
Chapter
Full-text available
Locomotion is the act and process of moving from place to place, which is fundamental to the life history of all mobile organisms. While the field of biomechanics encompasses the study of the physical constraints of what animals are capable of, ecological contexts require an integrated view that includes ecology and behavior. This chapter provides...
Article
Full-text available
The Antarctic krill ( Euphausia superba ) is one of the most abundant resources in the ocean, which provides food for several important species in the Antarctic Ocean, and is targeted commercially by humans for many decades. To sustainably manage and harvest the species, energy-efficient, catch-efficient, and selective fishing gears should be devel...
Article
To stop the decline of swimming crab (Portunus trituberculatus) stocks in the East China Sea, escape vents on crab pots are urgently required to improve pot selectivity and enable release of sublegal-sized crabs. This study presents field comparative fishing experiments, which examined the effectiveness of different shapes and sizes of escape vents...
Article
Beach nets and drumlines are lethal devices that are used to minimize the interaction between potentially dangerous sharks and beachgoers. Mortality to these large shark species as a result of these lethal measures has led to the development of non‐invasive technologies that may minimize the risks of rare encounters with beachgoers while simultaneo...
Article
Full-text available
The construction of dams and tide gates on waterways has altered the physical structure of many coastal, estuarine, and freshwater systems. These changes have come at a cost to fish populations, most notably diadromous species, which rely on connectivity between marine and freshwater systems. These anthropogenic structures can have direct effects o...
Article
Sea scallops (Placopecten magellanicus) are a highly fecund species that supports one of the most commercially valuable fisheries in the northeast U.S. continental shelf region. Scallop landings exhibit significant interannual variability, with abundances widely varied due to a combination of anthropogenic and natural factors. By coupling a pelagic...
Article
River herring (Alosa spp.) are anadromous fish that enter North American Atlantic coastal rivers and lakes each spring to spawn. Anthropogenic structures such as dams and tide gates serve as physical obstacles that limit river herring access to spawning habitat. This study examined the physical and ecological components affecting herring passage th...
Article
Understanding if a discrete region fits three key criteria for shark nursery area designation is of utmost importance. Such a designation within United States territorial waters could result in the implementation of an Essential Fish Habitat (EFH) classification, a determination facilitating species protection. In this study, baited remote underwat...
Technical Report
Full-text available
ICES Working Group on Innovative Fishing Gear (WKING) seeks to prepare ICES advice on the progress that has been made, or impact arising from innovative gear within European waters. In order to prepare the report described in Article 31.1 of Regulation 2019/1241, the EU DG-MARE seeks ICES advice on the progress that has been made, or impact arising...
Article
Sperm competition, as the last form of male competition prior to fertilization, is an important component in the reproductive and evolutionary biology of polyandrous species. Golden cuttlefish (Sepia esculenta) is a commercially important annual cephalopod, in which females often mate with multiple males during their mating season and maintain viab...
Technical Report
Full-text available
Vineyard Wind LLC, in collaboration with the University of Massachusetts Dartmouth’s School for Marine Science and Technology (SMAST), has developed a monitoring plan to assess the potential environmental impacts of the proposed offshore renewable energy development on the northern portion of Lease Area OCS-A 0501 (the 501 North Study Area) on mari...
Article
Full-text available
Grid systems separate fish species primarily through physical means: fish size and body shape. On Georges Bank off the northeast USA, many species of flounders are overfished, and their catch needs to be reduced. Flat-bodied skates are also often discarded. We tested a European style horizontal-bar grid system to reduce these flat-bodied low quota...
Article
Full-text available
An increase in the crab pot fishery in the East China Sea has caused great pressure on swimming crab Portunus trituberculatus resources. Thus, it is essential to implement suitable measures to release sublegal-sized crabs to increase the number of recruits for legal-sized crabs. One of the measures considered is the installation of escape vents on...
Article
The use of animal-borne imaging and environmental data collection systems (AVEDs) can provide behavioral and ecological information of animals that many other technologies cannot usually offer. However, many previous AVEDs have been designed for larger sharks, and there is a need for a technology that permits the collection of behavioral and ecolog...
Article
Full-text available
Albacore tuna (Thunnus alalunga) exhibit patchy concentrations associated with biological process at a wide range of spatial scales, resulting in variations in their catchability by fishing gears. Here we investigated the association of catch variation for pelagic longlines in the South Pacific Ocean with oceanographic mesoscale structures (in hori...
Conference Paper
Full-text available
Video technology has evolved rapidly over the past decade primarily driven by trends in consumer electronics. Action cameras have been proven a novel tool for fisheries research due to their low-cost, ease of use and small form-factor. While frequently used, these cameras still lack the ability to quantify fish morphology and behavior. Traditionall...
Conference Paper
Full-text available
The New England groundfish industry is a mixed species fishery which has historically relied on retaining a diverse composition of fish in the catch. Today, the groundfish industry finds itself in a challenging dichotomy. On one hand, several species in the groundfish complex, including haddock and pollock, are at record-high abundances while many...
Technical Report
Full-text available
Fish aggregating devices (FADs) used by tuna purse seine fisheries improve fishing efficiency relative to other purse seine fishing strategies and make it possible to successfully fish in new areas. However, when not responsibly managed, FADs can cause adverse effects. Abandoned, lost and otherwise discarded FADs cause ghost fishing, damage sensiti...
Article
Shrimp locomotion includes walking, swimming, and tail-flipping, all essential for survival. Understanding the pathway and use of energy during different modes of locomotion is important in understanding the strategy and evolution of locomotion. We explored the mechanisms of energy supply during swimming and tail-flipping locomotion modes in the wh...
Conference Paper
It is well known that human-caused alterations to the natural environment can have significant effects on wild fish migration, behavior and subsequently their populations. However, some of these effects may be difficult to quantify due to difficulties of making observations in coastal and estuarine environments where water visibility is typically p...
Conference Paper
Georges Bank (GB) haddock is one of the few robust groundfish stocks in New England. The exploitation of the haddock resource is dependent on the status and quota allocations of bycatch species. Currently populations of all the major flatfish species in New England are significantly depressed, making them quota-limiting species. To reduce the catch...
Article
A species separation grid was tested for a squid trawl to reduce finfish bycatch in the Nantucket Sound longfin inshore squid (Doryteuthis pealeii) fishery in southern New England, USA. The experimental trawl with a grid significantly reduces bycatch of summer flounder (Paralichthys dentatus) (76.4%, p < .001), black sea bass (Centropristis striata...
Article
Angling for hairtail Trichiurus lepturus using lights is common around the Korean Peninsula. Typically, metal halide (MH) lamps are used to attract fish during the fishing process. We investigated the fishing performance and fuel consumption using light-emitting diode (LED) lamps instead of MH lamps off the coast of Jeju Island, Republic of Korea....
Article
Small-mesh otter trawls, which use 76 mm or less codend mesh sizes, are considered "exempt" gears in some fishery management plans in the US. In New England, small-mesh trawls are utilized to capture small-bodied Northern shrimp (Pandalus borealis), silver hake (Merluccius bilinearis), and longfin inshore squid (Doryteuthis pealeii), which are too...
Presentation
Full-text available
The effectiveness of a trawl configured with drop-chain groundgear to capture target species and release bycatch was evaluated with underwater video recordings in the Nantucket Sound squid fishery off Cape Cod, MA. Entrance into trawl or escape underneath the fishing line was quantified for targeted longfin inshore squid (Doryteuthis pealeii), and...
Article
A trouser trawl was used to determine the size selectivity of three sizes of mesh opening (114, 140 and 165 mm double 5 mm twine diamond) on a commercial fishing vessel fishing off Provincetown, Massachusetts, USA. Fifty-six tows were completed in March and April 2013, catching over 42,000 kg of Acadian redfish (Sebastes fasciatus) and about 6000 k...
Technical Report
Full-text available
The goal of the REDNET project was to devise strategies and means to sustainably harvest the abundant Acadian redfish resource in the Gulf of Maine through a network approach, including fishing enterprises, gear manufacturers, researchers, social and economic experts and managers. The network defined the research pathway for conceiving, developing...
Article
Full-text available
Underwater video recordings in the mouth of a squid trawl were used to evaluate the effectiveness of a trawl configured with drop-chain groundgear to catch longfin inshore squid (Doryteuthis pealeii) and reduce bycatch of finfish in the Nantucket Sound squid fishery off Cape Cod, Massachusetts, USA. Entrance through the trawl mouth or escape undern...
Article
Full-text available
Balanced harvesting (BH) has been proposed as an alternative to the paradigm of more selective fishing as practiced in most European and North American fisheries management. We examine options for the implementation of BH and evaluate the issues raised in such an implementation. Implementation is considered at the whole ecosystem level, in terms of...
Article
Full-text available
Management and technical approaches that achieve a sustainable level of fish production while at the same time minimizing or limiting the wider ecological effects caused through fishing gear contact with the seabed might be considered to be ‘best practice’. To identify future knowledge-needs that would help to support a transition towards the adopt...
Article
Measuring the size selectivity of pollock, or saithe, Pollachius virens, has been challenging due to the patchy, elusive nature of the species. By using data collected opportunistically during a redfish Sebastes fasciatus selectivity study, selectivity of three sizes of mesh opening (114, 140 and 165. mm double 5. mm twine diamond) for pollock was...
Chapter
Full-text available
This paper re-emphasizes the concept of “unintentional fishing-related mortality” and its relation to bycatch, discards, and the landed catch (landing). It stresses that it is the unintentional fishing-related mortality that we need to reduce. The paper proposes a systematic method for reducing unintentional fishing-related mortality, taking the Gu...
Article
We hypothesized that a floating trawl bridle that does not contact the seabed would reduce the herding of fish, especially bottom dwelling flounders, and thus reduce bycatch of these fish in shrimp trawls. We further hypothesized that, due to the non-herding nature of northern shrimp (Pandalus borealis), the use of an off-bottom floating bridle wou...
Article
Full-text available
The white shark (Carcharodon carcharias) is an apex predator and is a protected species that suffers from several sources of anthropogenic mortality, such as shark nets. Shark nets are devices used to minimize the interaction between beachgoers and potentially dangerous sharks; however, these nets have negatively impacted local and migratory shark...
Article
Full-text available
Magnetic deterrents have recently been employed to assess their ability to reduce elasmobranch mortality in beach nets. With previous studies exhibiting promise, the present study examined the ability of a magnetic barrier technology, known as the Sharksafe Barrier, to exclude bull sharks (Carcharhinus leucas) from bait, and how behavioral interact...
Conference Paper
The minimum mesh size in the United States Northeast multispecies trawl fishery has been gradually increased over the last 30 years. In 1953, the International Commission for the Northwest Atlantic Fisheries first implemented the 114 mm minimum codend mesh, which remained in place until 1977 when the New England Fishery Management Council (NEFMC) t...
Conference Paper
Selective fishing might have practiced since fishing began as most fishing gears inherently select for species and size. Fueled by a desire to reduce bycatch and discards that are viewed as a waste of fisheries resource, the fishing industry are required to use the most selective gear that targets only certain species and sizes to meet the requirem...
Conference Paper
We conducted a codend selectivity study in the US Gulf of Maine as part of an effort to reestablish a sustainable trawl fishery for Acadian redfish (Sebastes fasciatus). Fifty-six tows were completed in March and April 2013 using a commercial fishing vessel and a trouser trawl, testing three diamond mesh codends (114 mm, 140 mm, 165 mm) against a 6...
Conference Paper
The study of fish behavior has typically relied on the use of video or direct observations. These observation techniques are dependent on ambient light levels which can be inhibited by turbidity, night and depth. High resolution imaging sonar systems operate by emitting acoustic pulses and converting the returning echoes into digital images. This a...
Article
Beach nets are protective nets used to minimize interactions between potentially dangerous sharks and beachgoers. Studies have demonstrated that beach nets are substantial contributors to elasmobranch mortality. One hypothesized solution to reducing this mortality is the use of permanent magnets. The present study examined the effects of grade C8 b...
Article
Recent studies have demonstrated that elasmobranchs (i.e. sharks, skates and rays) are sensitive and often deterred by electrosensory stimuli (e.g. permanent magnets and electropositive metals). These studies have, however, produced mixed results; but due to the importance of reducing elasmobranch bycatch in fisheries and/or directed shark capture...
Article
Full-text available
The ability of elasmobranchs to orient to weak electromagnetic fields is well documented. Recently, scientists have employed the use of strong electrosensory stimuli, such as permanent magnets, as a means to evaluate the repellent responses of elasmobranchs and assess the utility of these materials for bycatch repellent technologies. However, sever...
Article
Underwater video recording of the behavior of longfin inshore squid (Doryteuthis pealeii) in response to a Nordmøre-style finfish bycatch reduction grid installed in the extension of a trawl was made during experimental fishing in Nantucket Sound off Cape Cod, Massachusetts, USA. Swimming and jetting behavior, time in trawl extension, position, and...
Article
Full-text available
The great hammerhead shark Sphyrna mokarran is an endangered species that is exposed to several sources of anthropogenic mortality, including beach nets. Although not a major contributor to S. mokarran mortality, beach nets are utilized in several locations to minimize the potential harmful interaction between sharks and beachgoers. To address this...
Conference Paper
While targeting Atlantic cod (Gadus morhua) in the large mesh groundfish fishery in Southern New England, flatfish and other groundfish are taken as bycatch. The Southern New England/Mid-Atlantic stock of winter flounder (Pseudopleuronectes americanus) is overfished. The project team designed an experimental groundgear to reduce bycatch of winter f...
Conference Paper
Full-text available
Small mesh trawls targeting silver hake (Merluccius bilinearis) in the Northeast U.S. are managed as exemptions to the Northeast Multispecies Management Plan and the gear must meet the requirement that bycatch of regulated groundfish species does not exceed 5% of the total catch. At present, either a raised-footrope or sweepless trawl in conjunctio...
Conference Paper
The fishing on Georges Bank faces great challenges due to lower stock abundances for many species and yet relatively healthy status for others. Fish often mix with each other on the grounds and occupy the same niches. For example, Atlantic cod (Gadus morhua) and yellowtail flounder (Limanda ferruginea) often live in the same area. The GB Yellowtail...
Conference Paper
Recent assessments of Georges Bank haddock (Melanogrammus aeglefinus) have shown healthy populations with no overfishing occurring. Conversely concern has been raised about Atlantic Cod, Yellowtail and Winter Flounder stock health. The goal of this project was to test a rope separator haddock trawl to eliminating bycatch on the offshore fishing gro...
Article
The Nordmøre Grid developed more than twenty years ago has significantly reduced finfish bycatch in the northern shrimp (Pandalus borealis) fishery in Europe and North America. However, the grid does not reduce the catch of small shrimp and juvenile fish that are able to pass through the spaces between grid bars. A comprehensive project was initiat...
Conference Paper
Full-text available
In the Northwest Atlantic Ocean, longfin inshore squid (Doryteuthis pealeii) are captured by otter trawls in a relatively stable fishery in terms of squid populations. However, this fishery does have high bycatch amounts of unwanted fish species due to the small mesh sizes used. Bycatch reduction devices (grids, large-mesh panels, etc.) are used in...
Article
Finfish bycatch has been drastically reduced since the Nordmøre grid became mandatory in 1992 in the Gulf of Maine trawl fishery for northern shrimp Pandalus borealis. However, the Nordmøre grid does not improve northern shrimp size selection, catching large numbers of small shrimp when they are mixed with large mature shrimp. To reduce the catch o...
Article
Beach nets are preventative devices that are utilized to minimize the potential interaction between a beachgoer and a predatory shark. One species, the great white shark (Carcharodon carcharias), the focal species for the present study and a protected species in South African waters, is often killed in beach nets within the KwaZulu-Natal (KZN) regi...
Article
Since the sinking of the USS Indianapolis (CA-35) and associated shark attacks in 1945, the quest to find an effective shark repellent has been endless. Early efforts were focused on finding a shark repellent which would minimize the probability of a shark attack. However, studies illustrate that shark populations are drastically declining which ha...
Article
The spiny dogfish, Squalus acanthias, is viewed as a nuisance species due to their high abundance in the western Atlantic, in addition to their seemingly overwhelming presence on a variety of commercial fishing gears. In the present study, we incorporated two types of potential elasmobranch repellents, an (1) electropositive metal and (2) magnetism...
Article
A Nordmøre-style grid is required in many pink shrimp (Pandalus borealis) trawl fisheries in Europe and North America. However, the Nordmøre Grid does not reduce the catch of small shrimps. To reduce catch of small shrimps, a size-sorting grid with 11 mm grid spacing was developed and has been used by some trawlers. However, we do not know if the 1...
Conference Paper
Fishing gear technology and fish passage and protection constitute two discrete applications of conservation engineering with a common underlying biological basis. Much of what we know today about fish locomotion and behavior has its roots in one or the other of these applications. These parallel tracks are particularly evident in the study of swim...
Conference Paper
Six decades of research on fishing gear and fish behavior in the North Atlantic Pingguo He This presentation will serve as a backgrounder linking bycatch issues in marine fisheries and fish guidance/control challenges in fishways and powerplant intakes. The presentation will illustrate important technological advances and research priorities re...
Conference Paper
The northern shrimp (Pandalus borealis) is an important commercial species for the Gulf of Maine inshore fleet with landings exceeding 5,500 mt ($13.4 million USD) in 2010. During the past twenty years, efforts have been made to reduce finfish bycatch in this small mesh fishery. In order to assess and further reduce bycatch this study gathered info...
Conference Paper
A collaborative project involving otter trawl fishermen from New England and scientists from SMAST was designed to develop a modified groundgear for a trawl that reduces the catch of juvenile American plaice in the Georges Bank multispecies groundfish fishery. The project is part of the Collaborative Fisheries Research Fellowship that promotes coop...
Conference Paper
As much as two-thirds of fish that arrive at the mouth of an otter trawl might have been herded by trawl bridles and sweeps that connect the doors and the wingends of the net. Typical heavy bridles composed of wires or rubber disks (cookies) provide good bottom contact that effectively herd species such as flounders and other bottom-dwelling specie...
Conference Paper
The spiny dogfish, Squalus acanthias, is a small viviparous squaloid shark with a global distribution. S. acanthias is viewed as a nuisance species due to their high abundance in the western Atlantic, in addition to their seemingly overwhelming presence in a variety of commercial fishing gears. This project aims to examine the elasmobranch, more sp...
Article
The pink shrimp (Pandalus borealis) is an important commercial species for the Gulf of Maine inshore fleet with annual landings exceeding 5500 metric tons in 2010. Due to the small codend meshes used in the trawl, bycatch of juvenile finfish has been an issue. The adoption of the Nordmore Grid since the early 1990s has significantly reduced finfish...
Article
Full-text available
The swimming endurance of Atlantic cod (Gadus morhua), native to the cold waters off the east coast of Newfoundland and Labrador, was investigated under laboratory conditions. Using a swimming flume, endurance was tested at swimming speeds ranging from 0.6 to 1.3 m·s-1 using water temperatures from 0.0 to 9.8°C ( mean = 3.2°C, SD = 2.8) and fish le...
Chapter
Introduction The Swimming Apparatus Swimming-Related Adaptations Styles of Swimming Interactions between Fish and Water: Fish Wakes Energy Required for Swimming Swimming Speeds and Endurance Concluding Remarks Reference
Chapter
Introduction Trap Fisheries and Trap Designs Fish Behavior in and around Traps Fish Behavior and Trap Designs Size and Species Selectivity and Mortality of Escapees and Discards Conservation Issues and Mitigation Measures in Trap Fisheries Concluding Remarks References
Chapter
Full-text available
Introduction Capture Mechanisms, Gear Designs, and Fishing Efficiency Size Selectivity of Gillnets Fish Behavior and Gillnet Fishing Measures to Reduce Bycatch and Discards in Gillnets Interaction of Marine Mammals, Seabirds, and Sea Turtles with Gillnets Derelict Gillnets: Ghost Fishing Problems and Solutions Concluding Remarks References Referenc...
Article
Full-text available
Increasingly, people without fishing gear backgrounds are involved in fisheries management. While they have strengths in their respective professions, an operational knowledge of fishing gears is lacking. Such gaps can be filled with collaborative learning workshops utilizing industry members as instructors. This reversal training strategy also bui...
Article
This paper focuses on the mackerel's visual ability and swimming capability, and aims to describe the behavior in capture and escape process by trawl. The visual sensory systems and reaction behavior based locomotory capability were analyzed and simulated. The ability of fish to see an object depends on the light intensity and the contrast and size...
Article
Full-text available
He, P., and Balzano, V. 2007. Reducing the catch of small shrimps in the Gulf of Maine pink shrimp fishery with a size-sorting grid device. – ICES Journal of Marine Science, 64: 1551–1557. Since implementation of the Nordmøre grid in the Gulf of Maine pink shrimp (Pandalus borealis) trawl fishery in the early 1990s, fish bycatch has been reduced dr...