Catch-and-Release_Miyabe Char_Japan

Emma_Hemmerle — Wed, 26 Jan 2022 10:28:47 +0000

Catch-and-Release_Miyabe Char_Japan Emma_Hemmerle Wed, 01/26/2022 - 10:28

Affiliation

IIED

Date Of Record Entry

Wed, 01/26/2022 - 12:00

Type of wild species covered by the record

Wild species used in its natural habitat

Stage of the value chain covered by the record

Primary Producer/harvester (e.g., NTFP collectors, egg collectors)

Record Source

Scientific publication (e.g., journal articles and book chapters independently peer-reviewed)

Recreational fishery as a conservation tool for endemic Dolly Varden Salvelinus malma miyabei in Lake Shikaribetsu, Japan

Unknown/not recorded

Is the species endemic HIDE

Yes

Population Status

Common but only within narrow areas of distribution

No formal international protection in place

National Level

Unknown/not recorded

Threats/Pressures impacting the conservation of the species

Unknown/Not Recorded

Population Trend

Increasing

Sub-national Level

Unknown/not recorded

Name

Emma Hemmerlé

Scientific Name

Salvelinus malma miyabei

Common Name(s)

Miyabe Charr

Dolly Varden

Type of Use

Non-Extractive

Are specific characteristics/traits being targeted?

Unknown/not recorded

Purpose of Use

Recreational

Additional Details (if available)

recreational angling

What is the main end use for any living organisms, parts or products taken/extracted?

Conservation Management (translocation, restoration, ex-situ breeding)

What is the trend in the level of offtake within the period covered by this record?

Unknown/Not Recorded

Is there a regulatory or customary regime in place to govern this use?

Yes, formal (e.g., quotas, viewing or catch-size limits) and complied with

Additional Details (if available)

A management program was established to harmonize recreational fishery and conservation; recreational fishery management program ‘Great Fishing in Lake Shikaribetsu’ (GFS), initiated in 2005. Under this program, angling is only permitted for 50 days of the year, to only 50 persons/day, and fishing gear is restricted. In addition, catch-and-release is required for all Miyabe charr, and anglers are required to submit a daily catch report that describes the species and size of fish caught and the capture location.

Geographic Location

South and Southeast Asia

Country

Japan

Name

Lake Shikaribetsu

Site Description

Lake Shikaribetsu is located in the mountainous area of central Hokkaido Island, Japan, at latitude of 45.3°N and longitude of 143.1°E (Fig. 1). Its area is 3.4 km2, and its average depth is 56.1 m;

Is the site legally/formally protected?

Unknown/not recorded

Ownership

Unknown/Not Recorded

Management

Unknown/Not Recorded

Local people (e.g., individuals, communities, co-operatives)

National external (individual, groups. e.g., hunters, anglers, photographers, tourists)

Is the use part of a strategy to generate conservation incentives, to finance conservation, or to improve tolerance/stewardship?

Yes

Is there evidence that the use is affecting the conservation status of the species? HIDE

Yes – use is improving the status (e.g., population is increasing or stabilising, extraction effort OR catch per unit effort is decreasing or stable)

Is there evidence that the use is affecting natural selection?

Unknown/not recorded

Is there evidence that the use is affecting poaching of illegal wildlife trade?

Unknown/not reported

It is believed that the fishing regulations have contributed to the recovery and sustainability of this endemic population

Is there any evidence that this use of the species is having a knock-on effect on the status of non-target species

Unknown/not recorded

Details of assessment carried out

mortality through catch-and-release angling is low and accidental; Moreover, no decreasing population trend was detected on analysing 8 years of anglers’ catch data. Consequently, angling has facilitated stock assessments of Miyabe charr under the current program. This case is a good example of recreational angling acting as a conservation tool under appropriate management.
s a result, the Miyabe charr recreational fishery was assessed as worked properly as a conservation tool of the endemic fish population under the current management program. First, angling had a negligible impact on the fish population, because angling mortality was very low. Second, the cur- rent management program precisely checks and regulates angling effort. Third, the fish population was always monitored using angling data.

Has a valuation of financial flows from this use at the site/national/international level been recorded

Contribution to GDP

Unknown/not recorded

Food

Energy

Medicine/healthcare

Education

Training/Skills

Land/Resource Rights

Decision Making

Conflict- people

Conflict- wildlife

Climate Change

Has the use of the species been recorded as resulting in changes to human health in this record?

Unknown/not recorded

Has the species in use been noted as being of particular disease risk to humans?

Unknown/not recorded

Has the use of the species resulted in changes to animal welfare in this record?

Unknown/not recorded

Are there particular practices which have increased the risk to human or animal health or welfare in the use of this species?

Unknown/not recorded

Does the use of this species increase susceptibility to pathogen spread?

Unknown/not recorded

Support from NGOs

Present

Abundant population of target species

Present

Biological characteristics of target species

Present

Establishment and implementation of species and/or area management plan

Present

Is this use legal or illegal?

Legal under national law

Source Reference(s)

Yoshiyama, T., Tsuboi, Ji. & Matsuishi, T. Recreational fishery as a conservation tool for endemic Dolly Varden Salvelinus malma miyabei in Lake Shikaribetsu, Japan. Fish Sci 83, 171–180 (2017). https://doi.org/10.1007/s12562-016-1051-3

a scientifically acceptable recreational fishery management program was assessed as a conservation tool for endemic fish populations. To conserve an endemic species inhabiting a limited area such as the Miyabe charr, prohibiting fishing would be the usual conservation tool. However, the Miyabe charr recreational fishery indicates that, under a sustainable management program, recreational fisheries can be used as an alternative conservation tool.

Threats/pressures impacting the species at the scale of this record

Unknown/Not Recorded

Who is involved in the use?

Unknown/Not Recorded

Is there any gender/age specificity in the various roles

Unknown/not recorded

How many of these local jobs accure to the following categories?

How many people outside the local area are employed

Is there any evidence of other economic benefits associated with this use beyond direct income and jobs

Unknown/Not recorded

Scale of Assessment

Individual Site