JP2021087377A - Seaweed farming net - Google Patents

Seaweed farming net Download PDF

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JP2021087377A
JP2021087377A JP2019218509A JP2019218509A JP2021087377A JP 2021087377 A JP2021087377 A JP 2021087377A JP 2019218509 A JP2019218509 A JP 2019218509A JP 2019218509 A JP2019218509 A JP 2019218509A JP 2021087377 A JP2021087377 A JP 2021087377A
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net
seaweed
string
strings
net body
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JP7168989B2 (en
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吉秀 赤嶺
Yoshihide Akamine
吉秀 赤嶺
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Churaumi Suisan Co Ltd
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Churaumi Suisan Co Ltd
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    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
    • Y02A40/81—Aquaculture, e.g. of fish

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Abstract

To provide a seaweed farming net that can efficiently deliver marine nutrients to seaweeds adhering to the net and improve the yield and quality of seaweeds, despite its simple structure.SOLUTION: A seaweed farming net 1 comprises: a net body 2 to which a plurality of strings 3 are fixed and provided in a band shape and a grid pattern, in a state where they intersect each other at a middle and end portion thereof; and an edge rope portion 6 arranged at the edge portion of the net body 2. The net body 2 has a plurality of protruding string portions 4 extending outward from the edge rope portion 6 as a reference. The tip of the protruding string portion 4 is provided at the free end, and the base end portion of the protruding string portion 4 is linked (connected) to any one of the plurality of strings 3 and fixed.SELECTED DRAWING: Figure 3

Description

本発明は、海苔やモズクなどの海藻類の養殖場において、その海藻類の胞子を付着させて養殖するのに適した海藻養殖用網に関する。 The present invention relates to a seaweed aquaculture net suitable for aquaculture of seaweeds such as seaweed and mozuku by attaching spores of the seaweeds.

海苔やモズクなどの海藻類は、浅瀬の海中で養殖される。その養殖は海藻養殖用網を帯状に展張した上でこの海藻養殖用網にその海藻類の胞子を付着させた状態で行われる。そして、海藻養殖用網に付着して養殖された海藻類は作業船などによって最終的に摘み取りされて収穫される。その海藻養殖用網に付着された胞子を養殖するには、一般に海中に立設された支柱に海藻養殖用網の隅部を結束し、海藻養殖用網を海面と略平行に展張した状態で行われる。また、海藻養殖用網は、複数の紐がその中間又は端部で互いに結束して帯状かつ格子状に設けられる網地本体と、その網地本体の端縁部に配設される縁ロープ部と、を含んで構成される。 Seaweeds such as seaweed and mozuku are cultivated in shallow water. The aquaculture is carried out in a state where the seaweed cultivation net is spread in a band shape and the seaweed spores are attached to the seaweed cultivation net. Then, the seaweeds that have been cultivated by adhering to the seaweed cultivation net are finally picked and harvested by a work boat or the like. In order to cultivate the spores attached to the seaweed aquaculture net, generally, the corners of the seaweed aquaculture net are bound to the columns erected in the sea, and the seaweed aquaculture net is spread substantially parallel to the sea surface. Will be done. In addition, the seaweed aquaculture net consists of a net body in which a plurality of strings are bound to each other at the middle or end of the net and provided in a band shape and a grid pattern, and an edge rope portion arranged at the end edge of the net body. And are configured to include.

このような海藻類の養殖方法では、海藻の収穫量や品質を向上させるため、例えばリンや窒素などを含む栄養分をその肥料として海藻養殖用網周辺に投与することがよく行われる。リンは海藻類の成長促進を図り、窒素は海藻の色落ちを防止するものとして使用される。しかしながら、海中ではその海流は変則的でありかつその流れも速い。そのため、海藻類の海中養殖は野菜などの陸上での栽培とは異なり、海流により投与した栄養分が海藻養殖用網付近から遠くへ流出する場合もあり、その効果は限定的であった。 In such a seaweed aquaculture method, in order to improve the yield and quality of the seaweed, for example, nutrients including phosphorus and nitrogen are often administered as fertilizer around the seaweed aquaculture net. Phosphorus promotes the growth of seaweeds, and nitrogen is used to prevent discoloration of seaweeds. However, in the sea, the current is irregular and fast. Therefore, unlike the cultivation of vegetables on land, the underwater cultivation of seaweed may cause nutrients administered by ocean currents to flow out from the vicinity of the seaweed cultivation net, and the effect is limited.

そこで、海藻の収穫量を効率良く向上させるため、海藻養殖用網を構成する紐素材自体に工夫を凝らしたものが知られる（例えば、特許文献１参照）。特許文献１の海藻養殖用網では、紐の繊維の表面に栄養塩を含羞する樹脂層が設けられており、海中への浸漬によってその樹脂層中の栄養塩が徐放されるように構成される。 Therefore, in order to efficiently improve the yield of seaweed, it is known that the string material itself constituting the seaweed cultivation net is devised (see, for example, Patent Document 1). In the seaweed aquaculture net of Patent Document 1, a resin layer containing a nutrient salt is provided on the surface of the fiber of the string, and the nutrient salt in the resin layer is gradually released by immersion in the sea. To.

特開２００３−１５８９２９号公報Japanese Unexamined Patent Publication No. 2003-158929

しかしながら、上記特許文献１の海藻養殖用網は紐素材自体を工夫して海藻養殖時の肥料効率を上げて生産性と品質の向上を図っているものの、素材のみの改善に関するものであり、構造の点で改善の余地があった。また、海藻養殖用網は、上述したように作業船などによって船上（海上）に引き上げられて回収され、その網に付着した海藻類が摘み取られた後、再利用可能に保守や修理が行われる。そのため、保守や修理を容易にするため、構造の点で改善する場合でもその構造は簡素であることが望ましい。 However, although the seaweed cultivation net of Patent Document 1 is intended to improve productivity and quality by improving the fertilizer efficiency during seaweed cultivation by devising the string material itself, it is related to the improvement of only the material and has a structure. There was room for improvement in that respect. In addition, as described above, the seaweed cultivation net is pulled up on board (on the sea) by a work boat or the like and collected, and after the seaweed attached to the net is picked up, maintenance and repair are performed so that it can be reused. .. Therefore, in order to facilitate maintenance and repair, it is desirable that the structure is simple even when the structure is improved.

本発明は、上述した事情に鑑みてなされたものであり、簡素な構造ながら、網に付着する海藻類に海中の栄養を効率良く届けて海藻類の収穫量及び品質を高めることができる海藻養殖用網を提供することを目的とする。 The present invention has been made in view of the above-mentioned circumstances, and is capable of efficiently delivering seaweed nutrients to seaweeds adhering to the net to improve the yield and quality of seaweeds in spite of its simple structure. The purpose is to provide a network.

本発明の上述した目的は、下記の構成により達成される。
（１）
複数の紐がその中間部及びその端部で互いに交差された状態で固定されて帯状且つ格子状に設けられる網地本体と、
前記網地本体の端縁部に配設される縁ロープ部と、
を含み、
前記網地本体は、前記縁ロープ部を基準としてその外側に向けて延設される突出紐部を複数有し、
前記突出紐部の先端部は自由端に設けられるとともに前記突出紐部の基端部は前記複数の紐のうちいずれかに接続して固定される、
海藻養殖用網。
（２）
前記突出紐部のストランドの少なくとも１部は前記複数の紐のうちいずれかのストランドと一体に設けられる、
（１）に記載の海藻養殖用網。
（３）
前記突出紐部の前記ストランドの先端面は、外部に露出して設けられる、
（２）に記載の海藻養殖用網。
（４）
前記突出紐部の長さは、１００ｍｍから１５０ｍｍまでの範囲に設定される、
（１）〜（３）のいずれか１つに記載の海藻養殖用網。
（５）
前記複数の紐が互いに結節交差した状態で固定されて、前記網地本体は結節交差部を複数有し、
前記縁ロープ部は、前記網地本体の前記端縁部に配置される前記結節交差部にそれぞれ縫着固定される、
（１）〜（４）のいずれか１つに記載の海藻養殖用網。 The above-mentioned object of the present invention is achieved by the following configuration.
(1)
A net body body in which a plurality of strings are fixed in a state of being crossed with each other at an intermediate portion thereof and an end portion thereof and provided in a band shape and a grid pattern.
The edge rope portion arranged at the edge portion of the net body and the edge rope portion
Including
The net body has a plurality of projecting string portions extending outward from the edge rope portion as a reference.
The tip of the protruding string portion is provided at the free end, and the base end portion of the protruding string portion is connected to and fixed to any of the plurality of strings.
Seaweed farming net.
(2)
At least one of the strands of the protruding string portion is provided integrally with any of the strands of the plurality of strings.
The seaweed aquaculture net according to (1).
(3)
The tip surface of the strand of the protruding string portion is provided so as to be exposed to the outside.
The seaweed aquaculture net according to (2).
(4)
The length of the protruding string portion is set in the range of 100 mm to 150 mm.
The seaweed aquaculture net according to any one of (1) to (3).
(5)
The plurality of strings are fixed in a state where they intersect with each other, and the net body has a plurality of nodule intersections.
The edge rope portion is sewn and fixed to the nodule intersection arranged at the end edge portion of the net body.
The seaweed aquaculture net according to any one of (1) to (4).

上記（１）の構成によれば、突出紐部の基端部が縁ロープ部に固定支持された状態で、突出紐部の先端部はその基端部を中心として海流に従って揺らされて自由に移動することができる。これにより、突出紐部の先端が海流に従って揺動して網地本体が展張された平面とは高さ方向で異なって位置したり移動したりして、海中の栄養分などを広範囲に亘って突出紐部の内部に浸透させて取り込むことができる。その結果、網地本体全体に栄養分などが網地本体の展張面方向に沿って広がって供給され、網地本体に付着されて養殖されるモズクの生育環境を良好にすることができる。すなわち、簡素な構造ながら、海藻養殖用網に付着するモズク（海藻類）に海中の栄養を効率良く届けてモズクの収穫量及び品質を高めることができる。また、モズクの付着面積を増加させてモズクの収穫量を更に増やすことができる。
上記（２）の構成によれば、突出紐部の先端面から網地ストランドを通じて突出紐部の内部に海中の栄養分などがまず浸透し、次にその内側に配置される紐にまで連続的且つ円滑に浸透するため、網地本体の内部での栄養分などの浸透速度を高め、栄養分などの供給効率を向上させることができる。
上記（３）の構成によれば、海底面に沿って複数の海藻養殖用網を隣接して並設する際、隣接する海藻養殖用網の間に作業するための通路（スペース）を適切に確保することができる。また、収穫時に海藻養殖用網を海中から陸上に引き上げる際、突出紐部が作業の邪魔になることはない。
上記（４）の構成によれば、網の強度及び耐久性を向上させることができる。 According to the configuration of (1) above, in a state where the base end portion of the projecting string portion is fixedly supported by the edge rope portion, the tip end portion of the projecting string portion is freely swayed according to the ocean current around the base end portion. You can move. As a result, the tip of the protruding string part swings according to the ocean current, and the net body body is positioned or moved differently in the height direction from the stretched plane, and nutrients in the sea are projected over a wide range. It can be taken in by penetrating into the inside of the string part. As a result, nutrients and the like are spread and supplied to the entire net body along the direction of the spreading surface of the net body, and the growing environment of the mozuku that is attached to the net body and cultivated can be improved. That is, although it has a simple structure, it is possible to efficiently deliver underwater nutrients to mozuku (seaweed) adhering to the seaweed cultivation net and improve the yield and quality of mozuku. In addition, the adhesion area of mozuku can be increased to further increase the yield of mozuku.
According to the configuration of (2) above, nutrients in the sea first permeate the inside of the protruding string portion from the tip surface of the protruding string portion through the mesh strand, and then continuously and continuously to the string arranged inside the protruding string portion. Since it permeates smoothly, it is possible to increase the permeation rate of nutrients and the like inside the net body and improve the supply efficiency of nutrients and the like.
According to the configuration of (3) above, when a plurality of seaweed aquaculture nets are arranged side by side along the seabed, a passage (space) for working between the adjacent seaweed aquaculture nets is appropriately provided. Can be secured. In addition, when the seaweed cultivation net is pulled from the sea to the land at the time of harvesting, the protruding string portion does not interfere with the work.
According to the configuration of (4) above, the strength and durability of the net can be improved.

本発明によれば、簡素な構造ながら、海藻養殖用網に付着する海藻類に海中の栄養を効率良く届けて海藻類の収穫量及び品質を高めることができる。 According to the present invention, although it has a simple structure, it is possible to efficiently deliver underwater nutrients to seaweeds adhering to the seaweed cultivation net and improve the yield and quality of the seaweeds.

以上、本発明について簡潔に説明した。更に、以下に説明される発明を実施するための形態（以下「実施形態」という。）を添付の図面を参照して通読することにより、本発明の詳細は更に明確化されるだろう。 The present invention has been briefly described above. Further, the details of the present invention will be further clarified by reading through the embodiments described below (hereinafter referred to as "embodiments") with reference to the accompanying drawings.

図１は、本発明の実施形態に係る海藻養殖用網を説明する概略平面図である。FIG. 1 is a schematic plan view illustrating a seaweed aquaculture net according to an embodiment of the present invention. 図２は、図１に示す海藻養殖用網が海中に設置された状態を示す斜視図である。FIG. 2 is a perspective view showing a state in which the seaweed aquaculture net shown in FIG. 1 is installed in the sea. 図３は、図１に示す海藻養殖用網の要部を説明する模式平面図である。FIG. 3 is a schematic plan view illustrating a main part of the seaweed cultivation net shown in FIG. 図４は、図１に示す海藻養殖用網の要部を説明する模式側面図である。FIG. 4 is a schematic side view for explaining a main part of the seaweed aquaculture net shown in FIG.

本発明の海藻養殖用網に関する実施形態について、各図を参照しながら以下に説明する。
ただし、必要以上に詳細な説明は省略する場合がある。例えば、既によく知られた事項の詳細説明や実質的に同一の構成に対する重複説明を省略する場合がある。これは、以下の説明が不必要に冗長になるのを避け、当業者の理解を容易にするためである。
なお、添付図面及び以下の説明は、当業者が本開示を十分に理解するために提供されるのであって、これらにより特許請求の範囲に記載の主題を限定することは意図されていない。また、各図面は符号の向きに合わせて視るものとする。 An embodiment of the seaweed aquaculture net of the present invention will be described below with reference to each figure.
However, more detailed explanation than necessary may be omitted. For example, detailed explanations of already well-known matters and duplicate explanations for substantially the same configuration may be omitted. This is to avoid unnecessary redundancy of the following description and to facilitate the understanding of those skilled in the art.
It should be noted that the accompanying drawings and the following description are provided for those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims. In addition, each drawing shall be viewed according to the orientation of the reference numerals.

＜海藻養殖用網の全体構成及びその設置構造について＞
まず図１及び図２を参照して、本発明に係る実施形態（以下「本実施形態」ともいう。）の海藻養殖用網１（以下「網」ともいう。）の全体構成について説明する。図１は、本実施形態に係る網１を説明する概略平面図である。図２は、図１に示す網１が海中に設置された状態を示す斜視図である。
なお、本実施形態では、網１で養殖される海藻類としてモズクを例示して説明するが、これに限定されない。本実施形態の網１を海苔などのその他の海藻類に適用してもよい。 <Overall composition of seaweed farming net and its installation structure>
First, with reference to FIGS. 1 and 2, the overall configuration of the seaweed aquaculture net 1 (hereinafter, also referred to as “net”) of the embodiment (hereinafter, also referred to as “the present embodiment”) according to the present invention will be described. FIG. 1 is a schematic plan view illustrating the net 1 according to the present embodiment. FIG. 2 is a perspective view showing a state in which the net 1 shown in FIG. 1 is installed in the sea.
In this embodiment, mozuku is exemplified as a seaweed cultivated in the net 1, but the present invention is not limited to this. The net 1 of the present embodiment may be applied to other seaweeds such as seaweed.

図１に示すように、本実施形態の網１は、矩形平面状に形成される網地本体２と、この網地本体２の端縁部に配設される縁ロープ部６と、を含んで構成される。網地本体２は、複数の紐３がその中間部及びその端部で互いに結節交差した状態で固定される。この交差固定により、網地本体２は複数の結節交差部５を有して帯状且つ格子状に形成される。縁ロープ部６は、その全体の直径が網地本体２の紐３よりも太く設けられる。縁ロープ部６は、網地本体２の周縁部を囲うように配置される。そして、本実施形態は、網地本体２は、縁ロープ部６を基準としてその外側に向けて延設される複数の突出紐部４を更に有して構成される。 As shown in FIG. 1, the net 1 of the present embodiment includes a net main body 2 formed in a rectangular plane shape and an edge rope portion 6 arranged at an end edge portion of the net main body 2. Consists of. The net body 2 is fixed in a state where a plurality of strings 3 are knotted and intersected with each other at an intermediate portion thereof and an end portion thereof. By this cross-fixing, the net body 2 has a plurality of nodule crossing portions 5 and is formed in a band shape and a grid shape. The entire diameter of the edge rope portion 6 is provided to be thicker than that of the string 3 of the net body 2. The edge rope portion 6 is arranged so as to surround the peripheral edge portion of the net body 2. Then, in this embodiment, the net body 2 is further provided with a plurality of projecting string portions 4 extending outward from the edge rope portion 6 as a reference.

図２に示すように、本実施形態の網１は、海中において、海底から立設される複数の支柱７に取り付けられる。具体的には、網１において、その四隅と、長手方向の所定の複数箇所と、には吊りロープ８がその基端で固定して取り付けられる。そして、吊りロープ８はその先端で支柱７に固定して取り付けられる。このような取付固定により、網１は海底面（不図示）に対し略平行に展張される。 As shown in FIG. 2, the net 1 of the present embodiment is attached to a plurality of columns 7 erected from the seabed in the sea. Specifically, in the net 1, suspension ropes 8 are fixedly attached to the four corners thereof and a plurality of predetermined locations in the longitudinal direction at their base ends. Then, the hanging rope 8 is fixedly attached to the support column 7 at its tip. By such mounting and fixing, the net 1 is stretched substantially parallel to the seabed (not shown).

＜突出紐部の構成について＞
次に図３及び図４を参照して、突出紐部４の構成について説明する。図３は、図１に示す網１の要部を説明する模式平面図である。図４は、図１に示す網１の要部を説明する模式側面図である。 <About the configuration of the protruding string part>
Next, the configuration of the protruding string portion 4 will be described with reference to FIGS. 3 and 4. FIG. 3 is a schematic plan view illustrating a main part of the net 1 shown in FIG. FIG. 4 is a schematic side view for explaining a main part of the net 1 shown in FIG.

図３に示すように、網地本体２の紐３それぞれは複数の網地ストランドＳ１（ストランド）により構成される。本実施形態では、紐３それぞれは２本の網地ストランドＳ１を撚り合わせて設けられる。縁ロープ部６も同様に複数のロープストランドＳ２（ストランド）により構成される。本実施形態では、縁ロープ部６は、３本のロープストランドＳ２を撚り合わせて設けられる。このようにストランドを設けることにより、網地本体２の紐３及び縁ロープ部６の表面は複数のストランドの撚りによって凹凸が激しく形成されることになり、全体として表面積が大きく設けられるとともに、モズクの胞子の付着性を向上させることが可能となる。 As shown in FIG. 3, each of the strings 3 of the net body 2 is composed of a plurality of net strands S1 (strands). In the present embodiment, each of the strings 3 is provided by twisting two net strands S1. The edge rope portion 6 is also composed of a plurality of rope strands S2 (strands) in the same manner. In the present embodiment, the edge rope portion 6 is provided by twisting three rope strands S2. By providing the strands in this way, the surfaces of the string 3 and the edge rope portion 6 of the net body 2 are severely unevenly formed by twisting the plurality of strands, so that a large surface area is provided as a whole and Mozuku is provided. It is possible to improve the adhesion of spores.

網地本体２において複数の紐３は、交互に結ばれて連結される。すなわち、上述したように、複数の紐３はその中間部及びその端部同士で結節交差した状態で固定され、網地本体２は複数の結節交差部５を有する。縁ロープ部６は、その複数の結節交差部５のうち網地本体２の端縁部に配置された結節交差部５に縫着固定される。この縫着固定により、これら表面に亘ってステッチ（不図示）が一体に設けられ、複数の紐３と縁ロープ部６とは強固に固定される。 In the net body 2, the plurality of strings 3 are alternately tied and connected. That is, as described above, the plurality of strings 3 are fixed in a state where the intermediate portion thereof and the end portions thereof intersect with each other, and the net body 2 has the plurality of nodule intersections 5. The edge rope portion 6 is sewn and fixed to the knot intersection 5 arranged at the end edge portion of the net body 2 among the plurality of knot intersections 5. By this sewing fixing, stitches (not shown) are integrally provided over these surfaces, and the plurality of strings 3 and the edge rope portion 6 are firmly fixed.

また、網地本体２の端縁部に配置された結節交差部５において、複数の紐３の端部それぞれはこの結節交差部５からその一部が突出した状態で、複数の紐３は結節される。その結果、上述したように、網地本体２は、縁ロープ部６を基準としてその外側に向けて延設される突出紐部４を複数有する。すなわち、本実施形態では、複数の紐３のうち1部でその両方又は一方の端部が突出紐部４とされる。また、突出紐部４の先端部は自由端に設けられるとともに、突出紐部４の基端部は複数の紐３のうちいずれかに連結（接続）して固定される。突出紐部４の長さは１００ｍｍから１５０ｍｍまでの範囲に設定されるとよい。この場合、海底面に沿って複数の網１を隣接して並設する際、隣接する網１の間に、作業するための通路（スペース）を適切に確保することができる。また、収穫時に網１を海中から陸上に引き上げる際、突出紐部４が作業の邪魔になることはない。 Further, in the nodule intersection 5 arranged at the end edge portion of the net body 2, each of the ends of the plurality of strings 3 is in a state in which a part thereof protrudes from the nodule intersection 5, and the plurality of strings 3 are knots. Will be done. As a result, as described above, the net body 2 has a plurality of projecting string portions 4 extending outward from the edge rope portion 6 as a reference. That is, in the present embodiment, one of the plurality of strings 3 has both or one end of the protruding string portion 4. Further, the tip end portion of the protruding string portion 4 is provided at the free end, and the base end portion of the protruding string portion 4 is connected (connected) to any one of the plurality of strings 3 and fixed. The length of the protruding string portion 4 may be set in the range of 100 mm to 150 mm. In this case, when a plurality of nets 1 are arranged side by side along the seabed, a passage (space) for working can be appropriately secured between the adjacent nets 1. Further, when the net 1 is pulled up from the sea to the land at the time of harvesting, the protruding string portion 4 does not interfere with the work.

そのため、図４に示すように、突出紐部４の基端部が縁ロープ部６に固定支持された状態で、突出紐部４の先端部はその基端部を中心として海流に従って揺らされて自由に移動可能である。また、突出紐部４は網地ストランドＳ１の紐３の端部がそのまま突出して設けられるため、突出紐部４のストランドと紐３のストランド（網地ストランドＳ１）とは一体に設けられる。すなわち、両方とも同一の網地ストランドＳ１より構成される。そして、突出紐部４の網地ストランドＳ１の先端面は外部に露出して設けられており、海中の栄養分などが突出紐部４の網地ストランドＳ１を通じて浸透される。 Therefore, as shown in FIG. 4, in a state where the base end portion of the projecting string portion 4 is fixedly supported by the edge rope portion 6, the tip end portion of the projecting string portion 4 is shaken according to the ocean current around the base end portion. It can move freely. Further, since the protruding string portion 4 is provided so that the end portion of the string 3 of the net material strand S1 protrudes as it is, the strand of the protruding string portion 4 and the strand of the string 3 (the net material strand S1) are provided integrally. That is, both are composed of the same net strand S1. The tip surface of the mesh strand S1 of the protruding string portion 4 is exposed to the outside, and nutrients in the sea are permeated through the mesh strand S1 of the protruding string portion 4.

このように突出紐部４が構成されることで、突出紐部４の先端が海流に従って揺動して網地本体２が展張された平面とは高さ方向で異なって位置したり移動したりことが可能である。また、網地本体２において、縁ロープ部６の外側に配置される突出紐部４と、その内側に配置される紐３と、のストランドが一体であり、かつ突出紐部４の網地ストランドＳ１の先端面は外部に露出して設けられている。このため、突出紐部４の先端面から網地ストランドＳ１を通じて突出紐部４の内部に海中の栄養分などがまず浸透し、次にその内側に配置される紐３にまで連続的且つ円滑に浸透する。このようにして、網地本体２全体に栄養分などがその展張面方向に沿って広がって供給され、網地本体２に付着されて養殖されるモズクの生育環境を良好にすることが可能となる。 By configuring the projecting string portion 4 in this way, the tip of the projecting string portion 4 swings according to the ocean current, and the net body 2 is positioned or moved differently in the height direction from the stretched plane. It is possible. Further, in the net body 2, the strands of the protruding string portion 4 arranged on the outside of the edge rope portion 6 and the string 3 arranged on the inside thereof are integrated, and the mesh strand of the protruding string portion 4 is integrated. The tip surface of S1 is provided so as to be exposed to the outside. Therefore, nutrients in the sea first permeate into the inside of the projecting string portion 4 from the tip surface of the projecting string portion 4 through the mesh strand S1, and then continuously and smoothly permeate into the string 3 arranged inside the projecting string portion 4. To do. In this way, nutrients and the like are spread and supplied to the entire net body 2 along the direction of the spreading surface, and it is possible to improve the growing environment of the mozuku that is attached to the net body 2 and cultivated. ..

＜本実施形態の利点について＞
以上説明したように本実施形態によれば、海藻養殖用網１は、複数の紐３がその中間部及びその端部で互いに交差された状態で固定されて帯状且つ格子状に設けられる網地本体２と、網地本体２の端縁部に配設される縁ロープ部６と、含む。網地本体２は、縁ロープ部６を基準としてその外側に向けて延設される突出紐部４を複数有する。突出紐部４の先端部は自由端に設けられるとともに突出紐部４の基端部は複数の紐３のうちいずれかに連結（接続）して固定される。 <Advantages of this embodiment>
As described above, according to the present embodiment, the seaweed cultivation net 1 is a net in which a plurality of strings 3 are fixed in a state of being crossed with each other at an intermediate portion thereof and an end portion thereof and provided in a band shape and a grid pattern. The main body 2 and an edge rope portion 6 arranged at an end edge portion of the net main body 2 are included. The net body 2 has a plurality of projecting string portions 4 extending outward from the edge rope portion 6 as a reference. The tip end of the projecting string portion 4 is provided at the free end, and the base end portion of the projecting string portion 4 is connected (connected) to any one of the plurality of strings 3 and fixed.

このため、突出紐部４の基端部が縁ロープ部６に固定支持された状態で、突出紐部４の先端部はその基端部を中心として海流に従って揺らされて自由に移動することができる。これにより、突出紐部４の先端が海流に従って揺動して網地本体２が展張された平面とは高さ方向で異なって位置したり移動したりして、海中の栄養分などを広範囲に亘って突出紐部４の内部に浸透させて取り込むことができる。その結果、網地本体２全体に栄養分などが網地本体２の展張面方向に沿って広がって供給され、網地本体２に付着されて養殖されるモズクの生育環境を良好にすることができる。すなわち、簡素な構造ながら、網１（海藻養殖用網）に付着するモズク（海藻類）に海中の栄養を効率良く届けてモズクの収穫量及び品質を高めることができる。また、モズクの付着面積を増加させてモズクの収穫量を更に増やすことができる。 Therefore, in a state where the base end portion of the projecting string portion 4 is fixedly supported by the edge rope portion 6, the tip end portion of the projecting string portion 4 can be freely moved by being shaken according to the ocean current around the base end portion. it can. As a result, the tip of the protruding string portion 4 swings according to the ocean current, and the net body 2 is positioned or moved differently in the height direction from the plane on which the net body 2 is extended, so that nutrients in the sea can be spread over a wide range. It can be taken in by penetrating into the inside of the protruding string portion 4. As a result, nutrients and the like are spread and supplied to the entire net body 2 along the extending surface direction of the net body 2, and the growing environment of the mozuku cultivated by adhering to the net body 2 can be improved. .. That is, although it has a simple structure, it is possible to efficiently deliver the nutrients in the sea to the mozuku (seaweed) adhering to the net 1 (seaweed cultivation net) and improve the yield and quality of the mozuku. In addition, the adhesion area of mozuku can be increased to further increase the yield of mozuku.

また本実施形態によれば、突出紐部４の網地ストランドＳ１（ストランド）は複数の紐３のうちいずれかの網地ストランドＳ１（ストランド）と一体に設けられる。このため、突出紐部４の先端面から網地ストランドＳ１を通じて突出紐部４の内部に海中の栄養分などがまず浸透し、次にその内側に配置される紐３にまで連続的且つ円滑に浸透する。これにより、網地本体２の内部での栄養分などの浸透速度を高め、栄養分などの供給効率を向上させることができる。 Further, according to the present embodiment, the mesh strand S1 (strand) of the protruding string portion 4 is provided integrally with the mesh strand S1 (strand) of any of the plurality of strings 3. Therefore, nutrients in the sea first permeate into the inside of the projecting string portion 4 from the tip surface of the projecting string portion 4 through the mesh strand S1, and then continuously and smoothly permeate into the string 3 arranged inside the projecting string portion 4. To do. As a result, the permeation rate of nutrients and the like inside the net body 2 can be increased, and the supply efficiency of nutrients and the like can be improved.

また本実施形態によれば、突出紐部４のストランドの先端面は、外部に露出して設けられる。このため、海中の栄養分などをより直接的に網地ストランドＳ１に取り込むため、網地本体２の内部での浸透効率を向上させることができる。 Further, according to the present embodiment, the tip surface of the strand of the protruding string portion 4 is provided so as to be exposed to the outside. Therefore, since nutrients in the sea are taken into the net strand S1 more directly, the permeation efficiency inside the net body 2 can be improved.

また本実施形態によれば、突出紐部４の長さは、１００ｍｍから１５０ｍｍまでの範囲に設定されるとよい。この場合、海底面に沿って複数の網１を隣接して並設する際、隣接する網１の間に作業するための通路（スペース）を適切に確保することができる。また、収穫時に網１を海中から陸上に引き上げる際、突出紐部４が作業の邪魔になることはない。 Further, according to the present embodiment, the length of the protruding string portion 4 may be set in the range of 100 mm to 150 mm. In this case, when a plurality of nets 1 are arranged side by side along the seabed, a passage (space) for working can be appropriately secured between the adjacent nets 1. Further, when the net 1 is pulled up from the sea to the land at the time of harvesting, the protruding string portion 4 does not interfere with the work.

また本実施形態によれば、複数の紐３が互いに結節交差した状態で固定されて、網地本体２は結節交差部５を複数有し、縁ロープ部６は、網地本体２の端縁部に配置される結節交差部５にそれぞれ縫着固定される。このため、網１の強度及び耐久性を向上させることができる。 Further, according to the present embodiment, the plurality of strings 3 are fixed in a state where they are knotted and crossed with each other, the net body 2 has a plurality of knot crossing portions 5, and the edge rope portion 6 is the end edge of the net body 2. It is sewn and fixed to the nodule intersection 5 arranged in each portion. Therefore, the strength and durability of the net 1 can be improved.

以上で具体的実施形態の説明を終えるが、本発明の態様は上記実施形態に限定されるものではなく、適宜、変形、改良などが可能である。
上記実施形態では、複数の紐３が互いに結節交差した状態で固定されるが、これに限定されない。その他、紐３のストランド同士が一本単位で編組されて固定されてもよい。また、網地本体２の紐３と縁ロープ部６の間においてそのストランド同士で交差しつつ貫通するように編網されてもよい。その編組構造は任意である。 Although the description of the specific embodiment is completed above, the embodiment of the present invention is not limited to the above embodiment, and modifications and improvements can be made as appropriate.
In the above embodiment, the plurality of strings 3 are fixed in a state where they are nodularly crossed with each other, but the present invention is not limited to this. In addition, the strands of the string 3 may be braided and fixed in units of one. Further, the strands may be knitted so as to intersect and penetrate between the string 3 of the net body 2 and the edge rope portion 6. The braided structure is arbitrary.

１ 海藻養殖用網（網）
２ 網地本体
３ 紐
４ 突出紐部
５ 結節交差部
６ 縁ロープ部
７ 支柱
８ 吊りロープ
Ｓ１ 網地ストランド（ストランド）
Ｓ２ ロープストランド（ストランド） 1 Seaweed farming net (net)
2 Net body 3 String 4 Protruding string 5 Knot intersection 6 Edge rope 7 Strut 8 Suspended rope S1 Net strand
S2 Rope Strand (Strand)

Claims (5)

複数の紐がその中間部及びその端部で互いに交差された状態で固定されて帯状且つ格子状に設けられる網地本体と、
前記網地本体の端縁部に配設される縁ロープ部と、
を含み、
前記網地本体は、前記縁ロープ部を基準としてその外側に向けて延設される突出紐部を複数有し、
前記突出紐部の先端部は自由端に設けられるとともに前記突出紐部の基端部は前記複数の紐のうちいずれかに接続して固定される、
海藻養殖用網。 A net body body in which a plurality of strings are fixed in a state of being crossed with each other at an intermediate portion thereof and an end portion thereof and provided in a band shape and a grid pattern.
The edge rope portion arranged at the edge portion of the net body and the edge rope portion
Including
The net body has a plurality of projecting string portions extending outward from the edge rope portion as a reference.
The tip of the protruding string portion is provided at the free end, and the base end portion of the protruding string portion is connected to and fixed to any of the plurality of strings.
Seaweed farming net. 前記突出紐部のストランドの少なくとも１部は前記複数の紐のうちいずれかのストランドと一体に設けられる、
請求項１に記載の海藻養殖用網。 At least one of the strands of the protruding string portion is provided integrally with any of the strands of the plurality of strings.
The seaweed aquaculture net according to claim 1. 前記突出紐部の前記ストランドの先端面は、外部に露出して設けられる、
請求項２に記載の海藻養殖用網。 The tip surface of the strand of the protruding string portion is provided so as to be exposed to the outside.
The seaweed aquaculture net according to claim 2. 前記突出紐部の長さは、１００ｍｍから１５０ｍｍまでの範囲に設定される、
請求項１〜３のいずれか１つに記載の海藻養殖用網。 The length of the protruding string portion is set in the range of 100 mm to 150 mm.
The seaweed aquaculture net according to any one of claims 1 to 3. 前記複数の紐が互いに結節交差した状態で固定されて、前記網地本体は結節交差部を複数有し、
前記縁ロープ部は、前記網地本体の前記端縁部に配置される前記結節交差部にそれぞれ縫着固定される、
請求項１〜４のいずれか１つに記載の海藻養殖用網。 The plurality of strings are fixed in a state where they intersect with each other, and the net body has a plurality of nodule intersections.
The edge rope portion is sewn and fixed to the nodule intersection arranged at the end edge portion of the net body.
The seaweed aquaculture net according to any one of claims 1 to 4.
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS478708Y1 (en) * 1967-12-15 1972-04-03
JPH022306A (en) * 1988-04-28 1990-01-08 Tokutaro Komuro Netty attaching base material for marine organisms
JPH08322409A (en) * 1995-05-26 1996-12-10 Suzuki Motor Corp Member for culturing algae
JP2010263815A (en) * 2009-05-13 2010-11-25 Daiichi Seimou Co Ltd Rope containing fertilizer for seaweed culturing
JP2015112104A (en) * 2013-12-11 2015-06-22 明子 佐賀 Propagation/aqua-cultivation reef for performing propagation and aqua-cultivation of marine algae and propagation/aqua-cultivation method for the same using aqua-cultivation rope
CN105532422A (en) * 2016-02-14 2016-05-04 山东俚岛海洋科技股份有限公司 Seedling rope lifting ring for culturing raft frame and seedling rope hanging method of seedling rope lifting ring

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS478708Y1 (en) * 1967-12-15 1972-04-03
JPH022306A (en) * 1988-04-28 1990-01-08 Tokutaro Komuro Netty attaching base material for marine organisms
JPH08322409A (en) * 1995-05-26 1996-12-10 Suzuki Motor Corp Member for culturing algae
JP2010263815A (en) * 2009-05-13 2010-11-25 Daiichi Seimou Co Ltd Rope containing fertilizer for seaweed culturing
JP2015112104A (en) * 2013-12-11 2015-06-22 明子 佐賀 Propagation/aqua-cultivation reef for performing propagation and aqua-cultivation of marine algae and propagation/aqua-cultivation method for the same using aqua-cultivation rope
CN105532422A (en) * 2016-02-14 2016-05-04 山东俚岛海洋科技股份有限公司 Seedling rope lifting ring for culturing raft frame and seedling rope hanging method of seedling rope lifting ring

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