Goherr: Fish consumption study

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Question

How Baltic herring and salmon are used as human food in Baltic sea countries? Which determinants affect on people’s eating habits of these fish species?

Answer

Survey data will be analysed during winter 2016-2017 and results will be updated here.

Rationale

Survey of eating habits of Baltic herring and salmon in Denmark, Estonia, Finland and Sweden has been done in September 2016 by Taloustutkimus oy. Content of the questionnaire can be accessed in Google drive. The actual data will be uploaded to Opasnet base on Octobere 2016.

The R-code to analyse the survey data will be provided in this page later on.

Data

Original datafile File:Goherr fish consumption.csv

Preprocessing

This code is used to preprocess the original questionnaire data from the above .csv file and to store the data as a usable variable to Opasnet base.

+ Show code - Hide code

library(OpasnetUtils)
library(reshape2)
library(ggplot2)

############## Generic functions and objects are defined first.

### webropol.convert converts a csv file from Webropol into a useful data.frame.

webropol.convert <- function(
  data, # Data.frame created from a Webropol csv file. The first row should contain headings.
  rowfact, # Row number where the factor levels start (in practice, last row + 3)
  textmark = "Other open" # The text that is shown in the heading if there is an open sub-question.
) {
  out <- dropall(data[2:(rowfact - 3) , ])
  subquestion <- t(data[1 , ])
  subquestion <- gsub("\xa0", " ", subquestion)
  subquestion <- gsub("\xb4", " ", subquestion)
  subquestion <- gsub("\n", " ", subquestion)
  #  subquestion <- gsub("\\(", " ", subquestion)
  #  subquestion <- gsub("\\)", " ", subquestion)
  textfield <- regexpr(textmark, subquestion) != -1
  subquestion <- strsplit(subquestion, ":") # Divide the heading into a main question and a subquestion.
  subqtest <- 0 # The previous question name.
  for(i in 1:ncol(out)) {
    #print(i)
    if(subquestion[[i]][1] != subqtest) { # If part of previous question, use previous fact.
      fact <- as.character(data[rowfact:nrow(data) , i]) # Create factor levels from the end of Webropol file.
      fact <- fact[fact != ""] # Remove empty rows
      fact <- gsub("\xa0", " ", fact)
      fact <- gsub("\xb4", " ", fact)
      fact <- gsub("\n", " ", fact)
      fact <- strsplit(fact, " = ") # Separate value (level) and interpretation (label)
    }
    if(length(fact) != 0 & !textfield[i]) { # Do this only if the column is not a text type column.
      out[[i]] <- factor(
        out[[i]], 
        levels = unlist(lapply(fact, function(x) x[1])), 
        labels = unlist(lapply(fact, function(x) x[2])), 
        ordered = TRUE
      )
    }
    subqtest <- subquestion[[i]][1]
  }
  return(out)
}

# merge.questions takes a multiple checkbox question and merges that into a single factor.
# First levels in levs have priority over others, if several levels apply to a row.

merge.questions <- function(
  dat, # data.frame with questionnaire data
  cols, # list of vectors of column names or numbers to be merged into one level in the factor
  levs, # vector (with the same length as cols) of levels of factors into which questions are merged.
  name # text string for the name of the new factor column in the data.
) {
  for(i in length(cols):1) {
    temp <- FALSE
    for(j in rev(cols[[i]])) {
      temp <- temp | !is.na(dat[[j]])
    }
    dat[[name]][temp] <- levs[i]
  }
  dat[[name]] <- factor(dat[[name]], levels = levs, ordered = TRUE)
  return(dat)
}

############# Data preprocessing

# Get the data either from Opasnet or your own hard drive.

#Survey original file: N:/Ymal/Projects/Goherr/WP5/Goherr_fish_consumption.csv

survey <- opasnet.csv("5/57/Goherr_fish_consumption.csv", sep = ";", fill = TRUE, quote = "\"")
surcol <- t(survey[1,])

survey <- webropol.convert(survey, 2121, textmark = ":Other open") # Data file is converted to data.frame using levels at row 1269.

# Take the relevant columnames from the table on the page.
colframe <- opbase.data("Op_en7749", subset = "Questions in the Goherr questionnaire")
colnames(survey) <- colframe$Result

objects.store(survey, surcol)
cat("objects survey, surcol were stored.\n")

Questionnaire

Questions in the Goherr questionnaire(-)
Obs	Index	Full question	Question
1	V1	Country	Country
2	V2	1. What is the postal code of your residence?	Postal code
3	V3	2. What is your gender?	Gender
4	V4	2. How old are you?	Age
5	V5	3. What is the level of your highest education?	Education
6	V6	4. How would you rate the purchasing power of your household?	Purchasing power
7	V7	5. Which of the following food supplements (as a separate product or as a part of some multicompound) do you eat often at least part of the year?:Fatty acids (Omega 3, DHA, EPA etc.)	Omega3
8	V8	5. Which of the following food supplements (as a separate product or as a part of some multicompound) do you eat often at least part of the year?:D vitamin	Vitamin D
9	V9	5. Which of the following food supplements (as a separate product or as a part of some multicompound) do you eat often at least part of the year?:Other vitamins	Other vitamins
10	V10	5. Which of the following food supplements (as a separate product or as a part of some multicompound) do you eat often at least part of the year?:None of the above	None above
11	V11	5. Which of the following food supplements (as a separate product or as a part of some multicompound) do you eat often at least part of the year?:Don't Know	Don't know
12	V12	6. Does someone in your household fish?:No	No fishing
13	V13	6. Does someone in your household fish?:Yes, for recreational purposes	Recreational
14	V14	6. Does someone in your household fish?:Yes, for household use	Household use
15	V15	6. Does someone in your household fish?:Yes, as a professional fisherman	Professional
16	V16	7. Do you eat fish?	Fish eating
17	V17	8. Why don't you eat fish?:Allergy	Allergy
18	V18	8. Why don't you eat fish?:I don't like the taste	Don't like taste
19	V19	8. Why don't you eat fish?:I don't like fish bones	Don't like bones
20	V20	8. Why don't you eat fish?:Difficult to cook	Cooking difficult
21	V21	8. Why don't you eat fish?Health risks	Risky to health
22	V22	8. Why don't you eat fish?:I'm not used to	Not used to
23	V23	8. Why don't you eat fish?:I'm concerned about the sustainability of fish stocks	Sustainability of stock
24	V24	8. Why don't you eat fish?:It is ethically wrong to eat animals	Ethically wrong
25	V25	8. Why don't you eat fish?:I'm a vegetarian	Vegetarian
26	V26	8. Why don't you eat fish?:Don't Know	Don't know
27	V27	8. Why don't you eat fish?:Other	Other
28	V28	8. Why don't you eat fish?:Other open	Open
29	V29	9. How often do you eat fish?	How often
30	V30	10. Do you eat salmon or trout at least sometimes?	Salmon eating
31	V31	11. Which of the following salmonids do you eat at least sometimes?:Wild Baltic salmon	Baltic salmon
32	V32	11. Which of the following salmonids do you eat at least sometimes?:Wild Atlantic salmon	Atlantic salmon
33	V33	11. Which of the following salmonids do you eat at least sometimes?:Norwegian cultured salmon	Norwegian salmon
34	V34	11. Which of the following salmonids do you eat at least sometimes?:Rainbow trout	Rainbow trout
35	V35	11. Which of the following salmonids do you eat at least sometimes?:I never know which salmon I eat	Unknown salmon
36	V36	11. Which of the following salmonids do you eat at least sometimes?:Some other salmon, what?	Other salmon
37	V37	11. Which of the following salmonids do you eat at least sometimes?:Other open	Open
38	V38	12. Where do you usually get the wild Baltic salmon that you eat?:Someone in our hosehold catches it	Own catch
39	V39	12. Where do you usually get the wild Baltic salmon that you eat?:Buy from a grocery store	Grocery store
40	V40	12. Where do you usually get the wild Baltic salmon that you eat?:Buy from a market place/fishmonger or similar	Market place
41	V41	12. Where do you usually get the wild Baltic salmon that you eat?:Eat in a restaurant/cafe/canteen or similar	Restaurant
42	V42	12. Where do you usually get the wild Baltic salmon that you eat?:Directly from a fisher	From fisher
43	V43	12. Where do you usually get the wild Baltic salmon that you eat?:From a relative, friend, or similar	From friend
44	V44	12. Where do you usually get the wild Baltic salmon that you eat?:Other	Other
45	V45	12. Where do you usually get the wild Baltic salmon that you eat?:Other open	Open
46	V46	13. How often do you on average eat wild Baltic salmon as an ingredient in a dish (i.e. as part of a soup, gravy, sushi, casserole etc.)?	How often Baltic
47	V47	14. How much on average do you eat of a dish with wild Baltic salmon in it? Think of a medium sized lunch plate and the amount of the whole dish, not just the salmon.	How much Baltic
48	V48	15. How often do you on average eat wild Baltic salmon as a side dish (i.e as a separate product such as fish balls, stake, fillets, graved, canned etc.)?	How often side Baltic
49	V49	16. What is the average amount of wild Baltic salmon as a side dish? Think of a medium sized lunch plate.	How much side Baltic
50	V50	17. Select up to three most important reasons for you to eat wild Baltic salmon?:It tastes good	Tastes good
51	V51	17. Select up to three most important reasons for you to eat wild Baltic salmon?:I caught it	I caught it
52	V52	17. Select up to three most important reasons for you to eat wild Baltic salmon?:It's easy to cook	Easy to cook
53	V53	17. Select up to three most important reasons for you to eat wild Baltic salmon?:It's quick to cook	Quick to cook
54	V54	17. Select up to three most important reasons for you to eat wild Baltic salmon?:It's readily available	Readily available
55	V55	17. Select up to three most important reasons for you to eat wild Baltic salmon?:It's healthy	Healthy
56	V56	17. Select up to three most important reasons for you to eat wild Baltic salmon?:It's inexpensive	Inexpensive
57	V57	17. Select up to three most important reasons for you to eat wild Baltic salmon?:My family likes it	Family likes it
58	V58	17. Select up to three most important reasons for you to eat wild Baltic salmon?:It's environmentally/climate friendly choice	Environmentally friendly
59	V59	17. Select up to three most important reasons for you to eat wild Baltic salmon?:It's a traditional dish	Traditional
60	V60	17. Select up to three most important reasons for you to eat wild Baltic salmon?:Some other reasons, what?	Other
61	V61	17. Select up to three most important reasons for you to eat wild Baltic salmon?:Other open	Open
62	V62	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:I don't like the taste	Don't like taste
63	V63	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:I am not used to eating it / not offered at home	Not used to
64	V64	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:I don't know how to cook it	Don't know how to cook
65	V65	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:It is not easily available	Not available
66	V66	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:I'm worried about the possible health risks caused by the harmful chemicals in it	Health risks
67	V67	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:I doubt the quality/freshness of the products	Quality issues
68	V68	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:I'm worried about the sustainability of the stocks	Sustainability of stock
69	V69	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:It doesn't belong to traditional dishes of my home area	Not traditional
70	V70	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:It is too expensive	Expensive
71	V71	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:Some other reason, what?	Other
72	V72	18. You answered in the previous question that you don't eat wild Baltic salmon. Select up to three most important reasons for why not eating it.:Other open	Open
73	V73	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Lower price	Lower price
74	V74	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Higher price	Higher price
75	V75	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Better availability	Better availability
76	V76	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Availability of wider variety of ready meals / refined products	Ready meals
77	V77	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Cooking suggestions and recipes provided within the store or in the package.	Recipes
78	V78	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Better information (e.g. package markings or in the store) on the catch date, area, fisher and/or the refiner	Package markings
79	V79	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Improvement of the stocks (eco-labelling)	Eco-labelling
80	V80	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Lower level of harmful chemicals in the fish	Less chemicals
81	V81	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:National food safety authorities publish a recommendation to eat it	Recommendation
82	V82	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:National food safety authorities publish a recommendation to limit eating it	Limit recommendation
83	V83	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Some other reason, what?	Other
84	V84	19. How would the following factors influence on your consumption of wild Baltic salmon compared to your current use? Select one for each option:Other open	Open
85	V85	20. Do you eat any herring (Baltic or other) at least sometimes?	Eat herring
86	V86	21. Do you eat Baltic herring? This means herring caught from Baltic sea, not from Atlantic ocean	Eat Baltic herring
87	V87	22. Where do you usually get the wild Baltic herring that you eat?:Someone in our hosehold catches it	Own catch
88	V88	22. Where do you usually get the wild Baltic herring that you eat?:Buy from a grocery store	Grocery store
89	V89	22. Where do you usually get the wild Baltic herring that you eat?:Buy from a market place/fishmonger or similar	Market place
90	V90	22. Where do you usually get the wild Baltic herring that you eat?:Eat in a restaurant/cafe/canteen or similar	Restaurant
91	V91	22. Where do you usually get the wild Baltic herring that you eat?:Directly from a fisher	From fisher
92	V92	22. Where do you usually get the wild Baltic herring that you eat?:From a relative, friend, or similar	From friend
93	V93	22. Where do you usually get the wild Baltic herring that you eat?:Other	Other
94	V94	22. Where do you usually get the wild Baltic herring that you eat?:Other open	Open
95	V95	23. How often do you on average eat Baltic herring as ingredient of a dish? (i.e as part of a dish such as in a casserole or some other food including Baltic herring)?	How often Baltic
96	V96	24. How much on average do you eat of a dish with Baltic herring in it? Think of a medium sized lunch plate and the amount of the whole dish, not just the amount of Baltic herring	How much Baltic
97	V97	25. How often do you on average eat whole Baltic herrings or fillets as a side dish (fried, smoked, rolls, pickled, salted or otherwise prepared)?	How often side Baltic
98	V98	26. How much on average of Baltic herring as a side dish (think of a regular sized lunch plate)?	How much side Baltic
99	V99	27. Select up to three most important reasons for you to eat Baltic herring?:It tastes good	Tastes good
100	V100	27. Select up to three most important reasons for you to eat Baltic herring?:I caught it	I caught it
101	V101	27. Select up to three most important reasons for you to eat Baltic herring?:It's easy to cook	Easy to cook
102	V102	27. Select up to three most important reasons for you to eat Baltic herring?:It's quick to cook	Quick to cook
103	V103	27. Select up to three most important reasons for you to eat Baltic herring?:It's readily available	Readily available
104	V104	27. Select up to three most important reasons for you to eat Baltic herring?:It's healthy	Healthy
105	V105	27. Select up to three most important reasons for you to eat Baltic herring?:It's inexpensive	Inexpensive
106	V106	27. Select up to three most important reasons for you to eat Baltic herring?:My family likes it	Family likes it
107	V107	27. Select up to three most important reasons for you to eat Baltic herring?:It's environmentally/climate friendly choice	Environmentally friendly
108	V108	27. Select up to three most important reasons for you to eat Baltic herring?:It's a traditional dish	Traditional
109	V109	27. Select up to three most important reasons for you to eat Baltic herring?:Some other reasons, what?	Other
110	V110	27. Select up to three most important reasons for you to eat Baltic herring?:Other open	Open
111	V111	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:I don't like the taste and/or smell of it	Don't like taste
112	V112	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:I am not used to eating it / not offered at home	Not used to
113	V113	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:I don't know how to cook it	Don't know how to cook
114	V114	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:It is difficult to cook	Difficult to cook
115	V115	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:It is not easily available	Not available
116	V116	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:I'm worried about the possible risks caused by the harmful chemicals in it	Health risks
117	V117	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:It is more suitable for animal feed than human food	Better for feed
118	V118	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:I doubt the quality/freshness of the products	Quality issues
119	V119	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:I'm worried about the sustainability of the stocks	Sustainability of stock
120	V120	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:It doesn't belong to traditional dishes of my home area	Not traditional
121	V121	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:Some other reason, what?	Other
122	V122	28. You answered in the previous question that you don't eat Baltic herring. Select up to three most important reasons for why not eating it.:Other open	Open
123	V123	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Lower price	Lower price
124	V124	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Higher price	Higher price
125	V125	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Better availability	Better availability
126	V126	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Availability of wider variety of ready meals / processed products	Ready meals
127	V127	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Cooking suggestions and recipes provided in the store or in the package.	Recipes
128	V128	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Better information (e.g. package markings or in the store) on the catch date, area, fisher and/or processing company.	Package markings
129	V129	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Improved stocks (eco-labelling)	Eco-labelling
130	V130	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Lower level of harmful chemicals in the fish	Less chemicals
131	V131	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:National food safety authorities publish a recommendation to eat it	Recommendation
132	V132	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:National food safety authorities publish a recommendation to limit eating it	Limit recommendation
133	V133	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Some other reason, what?	Other
134	V134	29. How would the following factors influence your consumption of Baltic herring compared to your current use? Select one option for each row.:Other open	Open
135	V135	30. Are you familiar with the possible eating recommendations of Baltic herring and/or wild Baltic salmon in your country?	Recommendation awareness
136	V136	31. How strongly do you agree or disagree with the following statements on Baltic salmon? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It contributes to the economic wellbeing of the society	Economic wellbeing
137	V137	31. How strongly do you agree or disagree with the following statements on Baltic salmon? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It is a natural resource for humans to utilize	Natural resource
138	V138	31. How strongly do you agree or disagree with the following statements on Baltic salmon? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It belongs to all Baltic Sea citizens equally	Belongs to Baltic Sea
139	V139	31. How strongly do you agree or disagree with the following statements on Baltic salmon? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It involves long traditions related to fishing and fish eating	Long traditions
140	V140	31. How strongly do you agree or disagree with the following statements on Baltic salmon? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It inspires to search experiences from nature, cultural sites, fish markets or from different dishes	Inspiring experiences
141	V141	31. How strongly do you agree or disagree with the following statements on Baltic salmon? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It is among the most renowned fish species of the Baltic Sea	Renowned species
142	V142	31. How strongly do you agree or disagree with the following statements on Baltic salmon? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It is part of the Baltic Sea ecosystem	Part of ecosystem
143	V143	31. How strongly do you agree or disagree with the following statements on Baltic salmon? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:I have an emotional bond to it	Emotional bond
144	V144	31. How strongly do you agree or disagree with the following statements on Baltic salmon? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It helps me to achieve my personal aims	Personal aims
145	V145	32. How strongly do you agree or disagree with the following statements on Baltic herring? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It contributes to the economic wellbeing of the society	Economic wellbeing
146	V146	32. How strongly do you agree or disagree with the following statements on Baltic herring? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It is a natural resource for humans to utilize	Natural resource
147	V147	32. How strongly do you agree or disagree with the following statements on Baltic herring? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It belongs to all Baltic Sea citizens equally	Belongs to Baltic Sea
148	V148	32. How strongly do you agree or disagree with the following statements on Baltic herring? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It involves long traditions related to fishing and fish eating	Long traditions
149	V149	32. How strongly do you agree or disagree with the following statements on Baltic herring? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It inspires to search experiences from nature, cultural sites, fish markets or from different dishes	Inspiring experiences
150	V150	32. How strongly do you agree or disagree with the following statements on Baltic herring? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It is among the most renowned fish species of the Baltic Sea	Renowned species
151	V151	32. How strongly do you agree or disagree with the following statements on Baltic herring? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It is part of the Baltic Sea ecosystem	Part of ecosystem
152	V152	32. How strongly do you agree or disagree with the following statements on Baltic herring? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:I have an emotional bond to it	Emotional bond
153	V153	32. How strongly do you agree or disagree with the following statements on Baltic herring? Please indicate your position by selecting a number from -5 (strongly disagree) to 5 (strongly agree).:It helps me to achieve my personal aims	Personal aims
154	V154	Weighting	Weight
155	V155	How old are you? Age category FI	Age FI
156	V156	2. How old are you? Age category SWE, DK, EST	Age Other

Dependencies

The survey data will be used as input in the benefit-risk assessment of Baltic herring and salmon intake, which is part of the WP5 work in Goherr-project.

Formula

Keywords

References

Related files

Goherr: Fish consumption study. Opasnet . [1]. Accessed 23 Nov 2024.