Macquarie Island Fisheries, 1994-1995

This dataset contains the results from an investigation of the fishery off Macquarie Island. The data were obtained from the Austral Leader, an 85m long stern trawler, between December 1994 and February 1995. The aim of the fishing voyage was to determine whether sufficient catches could be made to enable dedicated voyages to the area to be profitable, and if time allowed to search for other fishable areas. The Austral Leader had been granted a licence by the Australian Fisheries Management Authority (AFMA) to fish in Commonwealth controlled waters within the Australian EEZ around Macquarie Island. A previous voyage in November-December 1994 had made a preliminary survey of the grounds surrounding the island. 59 tows were made in the vicinity of the island, and all but 10 were made in an area west of the island. No worthwhile catches were made in any other areas. The main species caught were the Patagonian Toothfish (Dissostichus eleginoides) and Rats Tails (Macrourus carinatus). Basic biological data were collected on the catches where possible including: standard and total length, sex, gonad maturity, and stomach contents.

A Microsoft Access database containing data from this cruise, plus several others is available for download from the URL given below. The Entry ID's of the other metadata records also related to this data are:

AADC-00038
AADC-00068
AADC-00073
AADC-00075
AADC-00080
AADC-00082
c88_data

The fields in this dataset are:

Cruises
Date
Location
Latitude
Longitude
Species
Gear
Length
Weight
Sex
Gonad
Eye
Otolith
Stomach
Lifestage
Family

本数据集收录了麦夸里岛（Macquarie Island）周边海域渔业调查的全部成果。数据采集自85米级尾拖网渔船“Austral Leader”号，采集时段为1994年12月至1995年2月。本次捕鱼航次的核心目标为：探明该海域能否获得足够渔获量，以支撑后续专属航次的盈利性运营；若时间充裕，则搜寻其他可捕捞海域。“Austral Leader”号已获得澳大利亚渔业管理局（Australian Fisheries Management Authority, AFMA）颁发的作业许可，可在麦夸里岛周边澳大利亚专属经济区（Exclusive Economic Zone, EEZ）内的联邦管控水域开展捕捞作业。此前在1994年11—12月的先期航次中，研究团队已对该岛周边渔场完成初步勘测。本次作业期间，共在该岛周边开展59次拖网捕捞，其中仅10次的作业区域位于岛屿西侧，其余区域未获得具有经济价值的渔获。本次作业的主要捕捞物种为巴塔哥尼亚牙鱼（Patagonian Toothfish, *Dissostichus eleginoides*）和铠长尾鳕（Rats Tails, *Macrourus carinatus*）。在条件允许的情况下，研究团队同步采集了渔获的基础生物学数据，包括标准体长、全长、性别、性腺成熟度以及胃含物。

可通过下述链接下载包含本次航次及其他多组航次数据的Microsoft Access数据库。与本数据集相关的其他元数据记录的条目ID如下：
AADC-00038、AADC-00068、AADC-00073、AADC-00075、AADC-00080、AADC-00082、c88_data

本数据集包含以下字段：
航次（Cruises）、日期（Date）、位置（Location）、纬度（Latitude）、经度（Longitude）、物种（Species）、作业渔具（Gear）、体长（Length）、体重（Weight）、性别（Sex）、性腺（Gonad）、眼部（Eye）、耳石（Otolith）、胃含物（Stomach）、生活史阶段（Lifestage）、分类科（Family）