C) Working and Living at Sea

C.5 Multinational crews and multiculturalism

ROAR HANSEN, ANETTE FAGERTUN

Shipping: a global, multinational and multicultural industry

The shipping industry, and therefore the workplace of seafarers, has during the past decades increasingly become a global entity. This reality has brought fundamental changes to the maritime industry in terms of company structure and ownership, trade, staffing policies, tempo and work conditions.

Transforming structures have subsequent and far-reaching implications for the health and wellbeing of seafarers and has also brought forth potential challenging issues as seafarers of many nationalities and cultures live and work together for prolonged periods of time.

Serving as an example, the Norwegian maritime sector has for generations been made up of Norwegian ship owners and companies, shipyards, supply chains and seafarers, and the industry has played a significant role for both the national economy and the imagination of nationhood. In the wake of the Norwegian International Ship Register (NIS) in 1987, the “Norwegian” merchant fleet is today multinational, manned by 20 000 seafarers from the Philippines (about 45 % of the total), 10 000 from Eastern Europe, 6000 from India, 5-6 000 Norwegians and approximately 3000 seafarers from other countries worldwide1.

Besides bringing people from every corner of the world together and creating job opportunities globally, a key organizing principle for labour policy in today’s globalized world is flexibilization. This means that informality and competition have become the dominant modes of employment2,15, giving rise to a rapid increase in exploitative forms of wage work, often conceived of as ‘precarious labour’, and the maritime sector is no exception.  Increased competition, and a focus on reducing labour costs, have created new criteria for inclusion and exclusion, which tend to politicize notions of culture and multi-nationality.

The concept of multiculturalism refers to a political philosophy that approaches diversity by emphasising equal rights and opportunities for all citizens, and a positive valuation of ethnic, religious and cultural differences in a society16. It differs from ‘diversity politics’ where such differences might be acknowledged but not approached in the same manner. Multiculturalism may serve as a useful guiding ideal for both thinking and practicing within multinational contexts.

What is culture?

Linguistic and psychological approaches dominate the research into intercultural communication. These approaches focus on the breakdown or misunderstandings in encounters, or communicative behavior, between people in situations of cultural diversity. Intercultural communication studies commonly classify culture “on the basis of nationality or pan-national traits…or more generally still as Western (individualist) and Eastern (collectivist)”3, p150.  Geert Hofstede highlights generalized differences between national cultures and regional different worldviews4. In line with Durant & Shepherd3, we encourage caution of such arguments, both because they may contribute to simplify complex relationships between nations and cultures and because they may encourage cultural stereotypes and stigmas that can have a derogatory effect on people affected by their use, for example onboard a vessel.

Culture is a complex concept defined in many different ways. Common for all ‘definitions’ is that culture is about something a group of people share, it is collective, and it has symbolic, structural, practical and material dimensions. The concept of culture comes from a time in history dominated by colonialism, strong beliefs in race and evolution, and the emergence of strong nation states. It was often used to mean heritage, as a people’s, a nation’s or a tribe’s distinct, inherited and unwavering ways of being.

Clifford Geertz described culture as “webs of meaning within which people live”5, p3 that include values, attitudes and beliefs, as well as practices and structures. Numerous studies of human culture have shown that academic and political assumptions about a direct correlation between a people/nation and a culture are misguiding. Culture deals both with similarities and differences in ways of being and perceiving the world, and such values and beliefs may both differ within a nation/people, and may be shared across assumed cultural and geographical boundaries. Roger Keesing understands culture as “systems of knowledge” that shape and constrain humans in their interactions. As a knowledge-system, culture is socially produced and unequally distributed. Culture does not only produce systems of meaning along national demarcations, ‘it’ also positions individuals differently according to social categories such as gender, class, occupation and education6.

Structural and organisational factors

Work cultures, communication and safety are all social phenomena shaped and produced at a certain point in time, within specific social contexts and through specific social relations. They exist within specific structural frameworks that encompass both possibilities and limitations. Culture is not only heritage or nationality, culture must also be understood as always changing in the interface between knowledge, institutional conditions and individual experiences.

The maritime industry has undergone a great transformation during the last 40 years due to globalisation, technological innovation, increased competition and flexibilization of labour. Depending on trade segments, the size of crews on board has decreased by as much as 60%, some companies employ only top officers, both deck and engine, whilst crew and ratings are engaged through various, often short-term contracts involving manning companies and agents external to the ship owner. Several, usually western, companies have staffing policies restricting non-western mariners from climbing higher than to 2nd or 3rd officers. The length of work period differs greatly within the industry. In some companies, seafarers employed in the company work on board for 8-12 weeks and enjoy well regulated time on shore. Others sign 12 months contracts, with few if any guarantees for further employment, or paid time in between trips to sea8. In addition, the increasing globalization of the industry combined with an ongoing combat to reduce costs, have generated highly uneven and unfair wage regimes where non-western seafarers may only be entitled to 1/3 of the salary paid to western employees, for performing the same job9.  Further information on the employment of seafarers is available in Ch. 4.1.

When considering the seafarer’s individual experience it is also important to keep in mind a key characteristic of migrant work, remittance, and, in the case of maritime work, the strong identity of being a seafarer.  In the case of Filipino seafarers for example, the seafarers are both a product of and for their families10. As “family enterprises”, their individual professional careers are always interwoven with their families in terms of both obligation, sentiments, and financial contributions. In the Philippines, as in many countries in the Global South, education is expensive, and the task of educating a son to become a certified seafarer often involves substantial financial contributions from kin, godparents, family friends and more. Furthermore, in a global system of manning agents, international companies and tough competition, the most likely path towards a contract may involve many middle-men and favours. This generates a system of often life-long obligations of debt and repayment, as well as strong moral expectations for the seafarer to himself contribute to the education of others within this social network of payments and reimbursements. The importance of continued engagement, to never un-sign no matter what- guides many Filipino seafarer’s attitudes towards their job. Thus, the structural conditions shaping the seafarers ‘choices’ combined with the social obligations of the seafarer create a particular work situation that should be recognized when considering the workers’ health and wellbeing.

Culture and Medicine

Human beings’ understandings and expectations regarding health, sickness and cure vary greatly. Health and sickness bring together biological, cultural and individual processes.

Cultural values about “proper” treatment may be guided by efforts towards regaining balance (Ayurveda and Chinese medicine), fighting a virus (western biomedicine), or re-establishing good interpersonal relationship and avoiding conflicts (African and Asian folk medicine). Within strong religious belief systems, topics of sickness and health are subjected to ‘God’s will’, and in some parts of the world belief in magic, healers and luck are the driving forces behind sickness, health and cure.

Seafarer’s cultural beliefs, therefore, may, or may not, coincide with the current practice of maritime medical examinations and treatment. Eisenberg distinguishes between illness and disease to highlight this relationship, where the former refers to the individual experience of suffering while the latter to the medical experts’ diagnosis of this suffering11. The greater the difference between the explanatory models of patient and doctor, the less are the chances for compliance to the prescribed treatment. This situation is further highlighted on board where medical care is delivered by an officer with limited medical training. The officer may be of a different culture with a different understanding and expectation of health and sickness and of course, a different first language.

Seafarers are heavily overrepresented in terms of fatalities such as accidents, suicide, and psychological disorders 12. A majority of mariners report that they never or rarely get ashore during their work periods12,p2. Long contracts and working days in combination with the solitary nature of life at sea, makes it challenging to cope regardless of cultural background.  However, for people from cultural backgrounds where being part of a larger, close community is important (kin, tribe, local community, family belonging), such illness is believed to be a natural consequence of being isolated from the required (and health- giving) social circumstances that generate wellbeing. If interpreted as solely deriving from individual pathology and treated only through individual intervention (medication), compliance to psychological support and treatment may be dramatically reduced. A mixed approach highlighting both the need to follow individual prescriptions, and to strengthen/re-engage social networks, for example, get in contact with relatives, visit fellow citizens/church congregation in the next port, etc., will most likely create a better outcome for both the patients and medical care givers. 


C-5-1.pngCultural awareness

The global variation in how people perceive and interpret their surroundings is enormous. It falls outside of the scope of this text to provide a detailed account of this matter. However, there are two general guidelines fostering multiculturalism and constructive multicultural interaction in multinational work places.

First, cultural competency is a key factor in establishing good communication across cultural horizons. At a basic level, this implies showing an interest in, and seeking knowledge of, peoples’ cultural background and sentiments. Besides broadening ones’ own horizon, the ability to engage in conversations showing knowledge of local/cultural issues are always experienced as respectful and trustworthy. For maritime health professionals cultural competency skills should be built and practiced to improve the quality and compliance of consultation and treatment.

Secondly, sickness and health are always culturally mediated and communicated.  Benedicte Ingstad (2007) set out 4 different ways that culture mediates sickness (our translation) 13, p40

  • through interpretation of symptoms
  • by the way symptoms are communicated
  • through ways of legitimizing sickness
  • by (possibly) creating disease (culturally-bound syndromes)

The “ASKED-“model” presented here provides a good rule of thumb for effective interaction in a multicultural setting. As with much safety and competence work, it urges everybody to start with their own assumptions and values.

References

(1) Norwegian Shipowners Association 2009. Annual Report at https://rederi.no/globalassets/dokumenter/alle/arsrapporter/11-00646-2-2009-arsrapport-nr.pdf-215871_1_1.pdf retrieved October 19 2018

(2) Breman, J., & Van der Linden, M. (2014). Informalizing the economy: The return of the social question at a global level. Development and Change, 45(5), 920-940.

(3) Durant, Alan & Ifan Shepherd 2009. ‘Culture’ and ‘Communication’ in Intercultural Communication. European Journal of English Studies, 13:2, pp. 147 – 162.

(4) Hofstede, G. (2001). Culture's consequences: Comparing values, behaviors, institutions and organizations across nations. Sage publications.

(5) Ortner, Sherry (1994). Introduction, in The fate of Culture. Geetz and beyond, Sherry Ortner (ed.), pp. 1- 14. Berkeley, Los Angeles, London: University of California Press.

(6) Keesing, R. M. (1974). Theories of culture. Annual review of anthropology, 3(1), 73-97.

(7) Goffman, E. (1961). On the characteristics of total institutions. In Symposium on preventive and social psychiatry (pp. 43-84). Washington, DC: Walter Reed Army Medical Centre.

(8) Hansen, Roar, Gunnar M. Lamvik og John Meling 2001. «Barkada-rapporten:

Flerkulturelle utfordringer i moderne rederi- og skipsdrift». Report from a joint research project..

(9) Alderton, Tony, Michael Bloor, Erol Kahveci, Tony Lane, Helen Sampson, M. Zhao, M. Thomas, Nik Winchester, and Bin Wu. The global seafarer: Living and working conditions in a globalized industry. International Labour Organization, 2004.

(10) Lamvik, Gunnar M. (2012) The Filipino Seafarer: A life between sacrifice and shopping. Anthropology in Action, 19 (1):22-31.

(11) Eisenberg, Leon (1977). Disease and illness Distinctions between professional and popular ideas of sickness. Culture, medicine and psychiatry, 1(1), 9-23.

(12) International Seafarers’ Welfare and Assitance Network (ISWAN) (2015). Social isolation of Seafarers http://seafarerswelfare.org/news-and-media/latest-news/article-discusses-the-social-isolation-of-seafarers retrieved October 19 2018

(13) Ingstad, Benedicte (2007). Medisinsk Antropologi- en innføring. Bergen: Fagbokforlaget.

(14) Campinha-Bacote, J. (2002). The process of cultural competence in the delivery of healthcare services: A model of care. Journal of transcultural nursing, 13(3), 181-184.

(15) ILO 2013, Caught at Sea. Forced Labour and Trafficking in Fisheries. http://www.ilo.org/wcmsp5/groups/public/---ed_norm/---declaration/documents/publication/wcms_214472.pdf, retrieved August 16 2018

(16) Bygnes, Susanne 2012. Ambivalent Multiculturalism. Sociology 47(1), pp. 126 – 141.

C.6 Seafarer's welfare

SURESH N IDNANI

Introduction

Seafarers are on board for an extended time, facing long periods away from family and friends, with limited or no communication for months on end and weathering the dangers of life at sea. On top of this, crew numbers are decreasing in size, leading to an increased workload. Shore leave can be severely restricted, especially with the faster turnaround of ships in port. Therefore, welfare facilities and services, either on board or ashore, can be a lifeline for seafarers.

Welfare Matters

The Maritime Labour Convention 2006 (MLC) is a relatively new legal document; however, the ILO has been active and concerned about seafarers’ welfare since the mid 20th century. The ILO Recommendation concerning the Promotion of Seamen’s Welfare in Ports (No. 48) was adopted in 1936. This dealt with the provision of recreational and sporting facilities in ports. The subsequent ILO Recommendation, Seafarers’ Welfare at Sea and in Ports (No. 138), was adopted in 1970 with a much wider scope. It included provisions to organize and fund welfare services, recreation facilities, as well as cultural and educational activities. These two recommendations succeeded in gaining broad acceptance and highlighted the importance of seafarers’ welfare. In 1987, the ILO adopted two more instruments of Seafarers’ Welfare, namely, Convention No. 163 and Recommendation No. 173. The International Committee on Seafarers Welfare (ICSW) was established at this time in order to implement these ILO instruments. Further information on the work of the ILO can be found in Chapter 3.3.3.

Consideration of the type, nature and accessibility of welfare for seafarers, needs knowledge and a study of the seafarer himself and the seafaring industry – ships, routes, cargo, crew, food, communication and the entire important universe that the seafarer abides in. Looking at the seafarer, we often perceive a brave courageous hardy person, at times with a little excess of bravado and scant or little respect for the chaplain’s or doctor’s recommendations. They are a species or a community by themselves and factors that determine their behaviour are peculiar to themselves and peculiar to the industry.

Overall, there are several reasons to improve the quality of life on board, especially at ‘leisure time’. However, this wellbeing is not only a recreational matter but also a matter of medical care for example, to prevent burnout or psychosomatic diseases, the consequence of which has economic impact. Over the last decade, organizations like ISWAN (The International Seafarers’ Welfare and Assistance Network), the successor organisation to ICSW (the International Committee on Seafarers’ Welfare) and ISAN (International Seafarer Assistance Network), The Sailors Society (SS), the UK P&I Club and several others have worked to assist companies, unions and stake holders to put seafarer welfare measures in to place.

Port welfare and facilities

HANS-JOACHIM JENSEN, MARCUS OLDENBURG

According to the MLC, each state is obliged to provide seafarers with easy and non-discriminatory access to shore-based social services. Social facilities in ports are primarily the seafarer's mission centres. They are of great importance for the seafarers and provide the:

  • possibility for communicating with family and home. In these facilities, seafarers can make phone calls, use the Wireless Local Area Network (WLAN )and obtain phone and SIM cards at particularly low prices.
  • option to transfer wages to their families that is particularly used by Asian seafarers
  • opportunity for leisure activities such as playing table tennis, billiards, table football and darts. Magazines, books and other information material are also available there, for example, information about the port city.

Some also offer overnight accommodation. And a shuttle service to and from the mission n and possibly to the nearby port city is usually available.

As a welfare institution, the missions provide an important opportunity for contact with seafarers due to their proximity to the port terminal and the relatively easy access.

They should enable the seafarer, at least for a short period, to leave their role in the hierarchical ship operation and use different contact, communication and relaxation facilities. Through such a "relieving role change", the crew can experience relaxation, attention and care that normal on board operations cannot provide. Seafarer's missions are also important facilities for seafarers, after extreme stress situations or unfair treatment on board or in the event of personal crises.  At the mission the seafarer can receive understanding, support and help to deal with, for example, a crisis on board, such as the death of a colleague, accidents in the family or natural disasters in the home country. Religious support may also be available. Ideally, on board visits by the staff of the mission are carried out if required, mainly for seafarers who are unable to leave the vessel for operational reasons.

Personal communication with families

HANS-JOACHIM JENSEN, MARCUS OLDENBURG, SURESH N IDNANI

Separation from family and other social support networks in the home country is a major burden for seafarers. This applies in particular to East Asian seafarers such as Filipinos where telecommunication with the family is of great importance for these very family-oriented individuals. Insufficient communication opportunities can have a decisive influence on the well-being of seafarers. Socio-biographical characteristics such as marital status, age, cultural background and position on board influence the need for communication and the use of telecommunications.

Suitable equipment, for both seafarers and their families, is an essential prerequisite for a functioning telecommunication system. A large proportion of seafarers have a mobile phone or a computer with an internet connection, however many seafarers rate the communication possibilities to the family as inadequate, particularly those on worldwide shipping routes[1]. When cruising worldwide, seafarers usually only have cost-intensive satellite connections at their disposal. It is easier for seafarers on feeder ships navigating in the North Sea and Baltic Sea to use their telecommunication equipment and to keep in touch with their families. It is estimated that the internet is now available on average in 36% of all sectors – particularly passenger, offshore and gas carriers[2]. This compares to only 20% of container, bulk carriers and general cargo ships having internet access. Increasing numbers of ship owners are realizing the importance of providing internet access to crews, with access on board ships now widely regarded as a key component in the attraction of new entrants to the profession. The prospect of not being able to readily communicate with the outside world has become highly unappealing to the vast majority of today's seafarers. Therefore, such provision also helps with retention of existing staff.

Although network or internet communication with the family is very important for seafarers, it cannot provide personal closeness in the true sense of the word. For example, the speaker’s non-verbal reactions cannot be perceived and experienced. In particular, delayed communication by e-mail or SMS does not meet this requirement. This kind of communication does not allow the respective partners to respond or react immediately. In addition, during communication, the seafarer and the family member at home are in different worlds. The environments that they currently experience have a significant influence on their communication. The restriction to only one means of communication, via the internet, can have a negative effect on social competence because people need lively interaction.

Welfare Organisations 

SURESH N IDNANI

Introduction

Life at sea can be challenging in many ways and situations where guidance or assistance is needed will occur. Often these can be sorted out on board but there will be times when this is not possible despite all best efforts. In addition, a seafarer may appreciate objective and comprehensive information and advice on a number of issues. Seafarers may also have the desire to report incidents or attitudes to external agencies if these have not been addressed satisfactorily on board.

In this situation welfare and other organisations are essential. Some are outlined below although there are many smaller or more geographically focused ones.

International Seafarers’ Welfare and Assistance Network (ISWAN)[3]

What is ISWAN?

ISWAN works to promote and support the welfare of seafarers all over the world. Its members and supporters include representatives of ship owners, maritime trade unions and welfare organisations both faith based and secular.  Their work is also part-funded by major maritime charities such as the ITF Seafarers’ Trust[4] and the TK Foundation[5]. They work with companies, unions, governments, welfare organisations and ports for the implementation of the ILO Maritime Labour Convention, 2006. They support those who establish and provide welfare facilities and services in port and on ships and are funded by membership subscriptions, grants from foundations, sponsorship and earned income. As well as those outlined below, current projects include:

Mentally Healthy Ships, a guide that provides shipping companies and ship operators with information to help devise and implement mental health policies and practices to promote and protect seafarers’ mental health.

Mental Health Awareness Training for the Maritime Industry, a two-module online mental health awareness training course. It provides an introduction to mental health awareness and in understanding mental health, recognising the signs of mental health problems and first response to concerns that can arise on board. It is aimed at management-level personnel on shore and on board ships

Social Interaction Matters (SIM), a project that aims to help shipping and ship management companies improve seafarers’ social interaction on board, and to positively impact the wellbeing of their seafarers through using programmes with proven success.

Yacht Crew Help, a free, confidential, multilingual helpline for professional yacht crew.

Seafarers’ Health Information Programme (SHIP), a long-running project that aims to offer both shipping companies and seafarers information on how to stay fit and well on board. This also includes the ‘Quench’ Hydration campaign that provides seafarers with the information about maintaining adequate levels of hydration.

Indian Seafarers Campaign, a campaign to discourage Indian seafarers from signing up with crewing agencies which have not registered with the Directorate General of Shipping (DGS).

International Port Welfare Partnership (IPWP) Programme, a programme that aims to encourage and support the establishment of welfare boards worldwide in accordance with the International Labour Organization Maritime Labour Convention, 2006. Welfare Boards provide the forum for maritime organisations to regularly meet and support seafarers' port welfare services and facilities in order to improve seafarers' lives.

In addition, ISWAN provides

  • an emergency welfare fund for seafarers in dire need,
  • production of health information for seafarers on subjects such as HIV and AIDs, healthy diets, hygiene and safe travel
  • a directory listing seafarer centres around the world, facilitating access to services in port.
  • training of ship welfare visitors
  • online toolkit for welfare organisations

The SeafarerHelp 24 hour helpline and referral service provides a unique contact point for seafarers and their families. Typical problems discussed include:

  • contractual disputes such as non-payment of wages,
  • failure to repatriate seafarers at the conclusion of their voyage,
  • abandonment,
  • need for medical attention,
  • concerns about attacks by pirates,
  • poor accommodation or food and
  • bullying and harassment on board.

Seafarer Help deals with a range of cases, even simply providing a listening ear. The service is free, confidential and available to seafarers and family members around the world. The service is open 24 hours a day, 365 days a years, and offers a multilingual service, including Russian, Tagalog, Hindi, Arabic and Mandarin.

Regional Programmes

The regional programmes provide humanitarian support to seafarers and their families in three specific regions, South East Asia, South Asia and West and Central Africa. The programme was developed in response to the needs of seafarers facing the crisis of being taken hostage by pirates and the families left behind. As Somali piracy decreased, the programme has moved towards other crises including deaths, injuries, illness and imprisonment and offers financial, practical and emotional support to seafarers and their families in times of need.

The South Asia Programme

The South Asia programme has made good progress in reaching out to seafarers’ welfare in various ports in India, Sri Lanka and Bangladesh. Ship visiting and the ship visitors’ training course is in motion, but, much more needs to be done to motivate and to activate the cooperation of welfare workers and stakeholders at port level. Everybody is doing something and everyone wants to do their own thing and the problem here is how to avoid duplication of efforts. One solution is to synchronize efforts with welfare schemes already in place from governments, ports, ship owners and seafarers’ organizations.  A working model is already in place for ready implementation in the various port welfare committees set up where the government and all concerned work towards a common goal of seafarers welfare incorporating health and wellness too.

Maritime Piracy and Humanitarian Response Programme (MPHRP)

This programme was created to assist seafarers and their families with the humanitarian aspects of a traumatic incident caused by a piracy attack, armed robbery or being taken hostage. In 2015, MPHRP moved its activities into ISWAN and continues to offer regional support to seafarers and their families in South Asia, South East Asia, Nigeria and elsewhere as required. ISWAN aims to encourage resilience and preparedness among seafarers before they go to sea through pre-departure training and good practice guides.

Other organisations

International Christian Maritime Association (ICMA)

HANS-JOACHIM JENSEN, MARCUS OLDENBURG

As maritime social institutions, the seamen's missions are organised within the International Christian Maritime Association (ICMA) (2) based in Great Britain. They represent different churches and Christian faith communities, regardless of denomination. Seafarer's missions are represented in almost all sea ports and inland ports. The staff consists of port chaplains, deacons and volunteers. The ICMA ensures standards in education and training for the staff in these institutions. The focus is on the care of seafarers, fishermen and their family members. The care of these persons is irrespective of origin, religion, gender or race and aims to promote ‘the dignity and welfare of seafarers’.

The ICMA networks offer their members legal advice on the support and care of seafarers through the Centre for Seafarers` Rights in New Jersey. There is also close cooperation with the International Labour Organization, ILO, subsection 13.1.1, the International Transport Workers' Federation, ITF, subsection 13.2.2, and the International Maritime Organization, IMO, subsection 13.1.3. ICMA was involved in the development and drafting of the Maritime Labour Convention (MLC) 2006 (3). Furthermore, ICMA is part of the International Seafarers' Welfare and Assistance Network and the Maritime Piracy Humanitarian Response Programme (MPHRP).

Affiliates of ICMA include most of the major seafarer missions:

The Seamen’s Church Institute (SCI) (5). SCI is a comprehensive agency that provides a wide range of services for seafarers. It is based in North America, and provides services with respect to a seafarer’s personal, professional as well as spiritual needs, including education, pastoral care and legal help. Most important of them is the free legal aid service they provide exclusively to seafarers.

Apostleship of the Sea (AoS) (7). The AoS provides help, support and advice to seafarers at almost all of the major ports globally, irrespective of their nationality. Volunteer ship visitors work in association with the local chaplains assist seafarers in need. It also works in liaison with the ILO and ITF.

The Mission to Seafarers and The Sailors’ Society both provide similar support services to those of the AoS. Although each of the three organisations has different faith-based origins they frequently co-operate to provide shared welfare resources for seafarers in ports around the world.

References

[3] https://www.seafarerswelfare.org/our-work

[4] https://www.seafarerstrust.org/

[5] https://www.tkfoundation.bs/

C.8 Pre employment medical selection

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C.7 Human performance at sea

TIM CARTER

Introduction

Seafarers working at sea need to safely and effectively perform a wide variety of tasks. Most involve the seafarer receiving information about their surroundings, analysing it and then taking appropriate actions that usually require movement of their hands, limbs, head or body.

C-7-1.png

Fig 20.1 Information processing and actions throwing a mooring line

Thus performance depends on

  • the sense organs, such as the eyes and ears to receive information
  • the ability of the brain to analyse this information and, based on training, decide on the actions needed, and
  • the physical capability to carry out the necessary task using either fine movements, for instance to adjust a control or forceful ones, as in handling mooring ropes.

The effects of the actions taken need to be monitored to assess the need for future actions. Tasks are often achieved through teamwork and the individual has to co-ordinate their actions with those around them.

The majority of humans, especially those of working age who have selected to work in the same sort of job, have broadly similar capabilities. Factors such as fatigue, mood, experience and age, as well as minor variations in individual capability may also affect performance.

C-7-2.png

Fig 20.2 Information processing and action – officer of the watch.

Vision

Vision is the main way in which we perceive our surroundings. The eye is capable of responding to a huge range of light levels, but with diminished colour and form perception when light levels are low. It can focus from a few centimetres to infinity, while at short distances (<5 metres) the two eyes, working stereoscopically, provide additional information on distance. Defects in focusing are common and correctable with glasses, contact lenses or by corneal surgery. Other vision defects are rarer, but increase in frequency with age. Age also reduces the ability of the eye to focus and slows the pace of adaptation to changing light levels.

The maritime environment is visually complex, with visibility often reduced by fog, darkness and/or glare and a lack of image contrast is common. Colour is used in navigation lights, on alarms and on charts. Failure to recognise correctly form (visual acuity) and colour can be safety critical. For this reason, some defects may make a person unsuited to safety critical work at sea. These include defects in focusing and in colour perception that cannot be corrected and defects due to light scattering in the eye after corneal surgery and with eye diseases such as cataract.

The eyes of humans are forward facing and so do not detect visual signals beyond their field of view. Other senses, such as hearing, as well as self-awareness of the need to scan widely, lead to the gaze being directed elsewhere. Thus, the control of the eye and head muscles plays an important part in visual performance. 

Eyesight standards for seafarers use relatively crude tests of form and colour vision. These are well validated and reproducible but do not effectively assess visual performance under adverse conditions. Tests are available which can do this but they are not sufficiently reliable to be used as the basis for decisions on fitness to work at sea. Information from the light receptors of the eye is transmitted to the visual centres of the brain for analysis through the optic nerve.

Hearing 

Voice communications, either direct or relayed by telecoms equipment, are integral to the operation of a vessel. Hearing and comprehension is therefore essential. Sounds can be heard from all directions, and the ears acting together can localise them. This means that sound signals are effective as warnings of danger.  If loud enough they can also arouse seafarers from sleep and penetrate through partitions.

Deficient hearing may be congenital, it may be the result of childhood infections or degenerative diseases. It can also be produced by prolonged exposure to loud noise, either at work from noisy machinery or from amplified sounds experienced during leisure.  Minor damage to hearing can be detected by audiometry before it becomes apparent or impairing.

Sufficient hearing for communication and for responding to alarms is essential in seafarers. Checking this is a routine part of the seafarer medical. Damage from occupational noise exposure can also be identified using audiometry under controlled conditions. Further information on noise related hearing loss can be found in Ch. 6.6.

In some forms of hearing impairment, hearing aids can enable seafarers to meet the communications demands of their work. If removed when sleeping it is important to ensure that awareness of alarms is still present or to supply an alternative, non-auditory alarm. Not all hearing aids are robust enough for use in a maritime setting, they are liable to damage and all require frequent battery changes.

In noisy settings, ear defenders will reduce the risk of hearing damage. They do not interfere significantly with communication, but models are available with built in speakers to improve communications.

The auditory nerve transmits impulses from the sound sensors in the inner ear to the auditory centres for analysis.

Analysis by the brain (cognition)

Impulses from the eyes and ears, as well as from other receptors all arrive in the brain. Other sensory information comes from

  • touch, hot, cold and pain receptors in the skin,
  • position sensors in joints and muscle
  • taste and smell sensors in the mouth and nose

The information is processed to build up both conscious and unconscious assessments of the surroundings and an important part of this process is the matching of situational information with past experience, including the input from training.

The brain’s state of alertness can vary from high when aroused by important external stimuli to very low, for example, when resting. Alertness is also influenced by other factors such as fatigue, the time of day, food intake, alcohol and some medications. How information is analysed and acted on can be affected by a person’s psychological state, for instance if they are anxious they may over-react to unexpected information, while if they are depressed they may set it aside as unimportant. For this reason effective teamwork and double-checking of decisions is an important method of reducing the risk of inappropriate actions.

If a person is overloaded with information then their performance can decline, particularly where this has significant emotional, economic or safety implications. Prioritisation of inputs and responses to them is an important aspect of brain function, and is one that is particularly sensitive to the effects of fatigue, alcohol and psychoactive substances.

Training and experience make important contributions to the quality of decision taking and can ease the effects of overload by the adoption of tried and tested routines.

Once analysis is complete, either at a conscious or unconscious level, any actions required occur through nerve impulses, mainly to muscle groups that will make the desired action a reality. This may include actions designed to improve the information available for decision taking, such as turning the head and directing gaze in response to a noise. 

Physical capability

Work at sea involves a wide range of tasks, many of which are relatively undemanding in terms of muscle strength and stamina, joint flexibility, balance and co- ordination. However some routine duties, such as heavy manual handling, both of mooring ropes and when loading stores or effecting maintenance, demand strength and stamina as well as an adequate response by the circulatory and respiratory systems to increased demands for oxygen and nutrients. Other tasks such as working at heights and entry into confined spaces need good co-ordination and flexibility. Some tasks require the use of breathing apparatus and both physical fitness and mental preparedness are essential for this. In emergencies the physical demands can be much higher, for instance if fighting fires or launching and entering life rafts.

Physical capability is, to an extent, assessed during training, for instance in sea survival and fire-fighting courses. The clinic setting for seafarer medical examinations does not provide opportunities for assessment other than by methods far removed from the realities of work at sea. Most seafarers have a good standard of physical fitness when they are young and starting their career but this may decline through lack of regular exercise or because of illnesses affecting the heart, lungs and bones, muscles and joints.  

Impairment, illness and ageing 

Seafarers with long service at sea usually retain a good level of physical fitness, provided they do not develop conditions such as heart or lung disease, musculo-skeletal pain or obesity. Some forms of impairment, such as decrements in visual function are very clearly age related, but may be amenable to correction, either by using glasses to compensate for declining acuity or by behavioural adaptations, such as taking more time in the dark before undertaking night lookout duties.

There is an increased incidence of long term illness among older seafarers and an increased risk of medical emergencies arising while at sea. However, the benefits of having seafarers with long experience and high-level skills on board more than compensate for these increments in risk.

Active health promotion programmes for seafarers, both on board and ashore, can be expected to reduce the frequency of career-shortening medical conditions. The requirements in the STCW 2010 amendments that have now come into force and require seafarers to repeat essential safety courses, such as those in fire-fighting and survival at sea can also be expected to provide an incentive for the maintenance of physical fitness. Further information on the training of seafarers is available in Ch. 4.3